Making N- Or P-doped Regions (epo) Patents (Class 257/E21.042)
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Patent number: 11661346Abstract: Functionally graded graphene materials, methods of making and uses thereof are described.Type: GrantFiled: January 29, 2019Date of Patent: May 30, 2023Assignee: The University of ToledoInventors: Syed Reza Rizvi, Sheikh Rasel, Omkar Bhatkar, David Smith
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Patent number: 10373976Abstract: A semiconductor device includes: a substrate; an insulator layer provided on the substrate; a first transistor provided on the insulator layer; a semiconductor layer including a plurality of impurity regions of a first conduction type, the impurity regions forming a part of the first transistor; a heat dissipation layer; a thermal conductive layer linking the semiconductor layer and the heat dissipation layer; and an interruption structure configured to interrupt a flow of a current between the first transistor and the thermal conductive layer.Type: GrantFiled: June 20, 2014Date of Patent: August 6, 2019Assignee: SONY CORPORATIONInventors: Yuzo Fukuzaki, Hiroaki Ammo
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Patent number: 9472512Abstract: Integrated circuits and methods of producing the same are provided. In an exemplary embodiment, an integrated circuit includes a substrate, where the substrate includes a buried oxide (BOX) layer positioned between a handle layer and a semiconductor layer. An electronic component overlies the buried oxide layer on a semiconductor layer side, and a gate line is electrically connected to the electronic component. A body line is also electrically connected to the electronic component. A first through BOX contact electrically connects the gate line with the handle layer, and a second through BOX contact electrically connects the body line with the handle layer.Type: GrantFiled: October 14, 2015Date of Patent: October 18, 2016Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Rui Tze Toh, Guan Huei See, Shaoqiang Zhang, Purakh Raj Verma
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Patent number: 9397156Abstract: To realize a semiconductor device having a power MOSFET satisfying both a low conduction resistance and a high junction breakdown voltage by a simple and easy manufacturing method. Over an n-type substrate, a p-type epitaxial layer of a low concentration is formed, and, in an active part, a plurality of active regions is defined by a plurality of trenches that is formed in the epitaxial layer and extends in a first direction with first intervals in a second direction orthogonal to the first direction. In the epitaxial layer between the adjacent trenches, an n-type diffusion region that functions as a drain offset layer is formed, and, in the epitaxial layer between a side wall of the trench and the n-type diffusion region, a p-type diffusion region connected with a channel region (the p-type diffusion region) is formed, to constitute a super junction structure.Type: GrantFiled: November 24, 2015Date of Patent: July 19, 2016Assignee: Renesas Electronics CorporationInventor: Tsuyoshi Kachi
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Patent number: 9035384Abstract: A semiconductor device includes a first fin-shaped silicon layer on a substrate and a second fin-shaped silicon layer on the substrate, each corresponding to the dimensions of a sidewall pattern around a dummy pattern. A silicide in upper portions of n-type and p-type diffusion layers in the upper portions of the first and second fin-shaped silicon layers. A metal gate line is connected to first and second metal gate electrodes and extends in a direction perpendicular to the first fin-shaped silicon layer and the second fin-shaped silicon layer. A first contact is in direct contact with the n-type diffusion layer in the upper portion of the first pillar-shaped silicon layer, and a second contact is in direct contact with the p-type diffusion layer in the upper portion of the second pillar-shaped silicon layer.Type: GrantFiled: May 29, 2014Date of Patent: May 19, 2015Assignee: UNISANTIS ELECTRONICS SINGAPORE PTE. LTD.Inventors: Fujio Masuoka, Hiroki Nakamura
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Patent number: 8987792Abstract: Merged active devices on a common substrate are presented. Methods for operating and fabricating such merged active devices are also presented.Type: GrantFiled: March 14, 2013Date of Patent: March 24, 2015Assignee: Peregrine Semiconductor CorporationInventors: Jaroslaw Adamski, Chris Olson
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Patent number: 8975128Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced sVT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.Type: GrantFiled: November 18, 2013Date of Patent: March 10, 2015Assignee: SuVolta, Inc.Inventors: Scott E. Thompson, Damodar R. Thummalapally
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Patent number: 8940576Abstract: The present invention provides practical methods for n-type doping of graphene, either during graphene synthesis or following the formation of graphene. Some variations provide a method of n-type doping of graphene, comprising introducing a phosphorus-containing dopant fluid to a surface of graphene, under effective conditions to dope the graphene with phosphorus atoms or with phosphorus-containing molecules or fragments. It has been found that substitutional doping with phosphine can effectively modulate the electrical properties of graphene, such as graphene supported on Si or SiC substrates. Graphene sheet resistances well below 200 ohm/sq, and sheet carrier concentrations above 5×1013 cm?2, have been observed experimentally for n-doped graphene produced by the disclosed methods. This invention provides n-doped graphene for various electronic-device applications.Type: GrantFiled: September 22, 2011Date of Patent: January 27, 2015Assignee: HRL Laboratories, LLCInventors: Steven S. Bui, Jeong-Sun Moon
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Patent number: 8928052Abstract: An optoelectronic semiconductor chip has a semiconductor layer sequence having an active layer that generates radiation between a layer of a first conductivity type and a layer of a second conductivity type. The layer of the first conductivity type is adjacent to a front side of the semiconductor layer sequence. The semiconductor layer sequence contains at least one cutout extending from a rear side, lying opposite the front side, of the semiconductor layer sequence through the active layer to the layer of the first conductivity type. The layer of the first conductivity type is electrically connected through the cutout by means of a first electrical connection layer which covers the rear side of the semiconductor layer sequence at least in places.Type: GrantFiled: March 13, 2009Date of Patent: January 6, 2015Assignee: OSRAM Opto Semiconductors GmbHInventors: Karl Engl, Lutz Hoeppel, Patrick Rode, Matthias Sabathil
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Patent number: 8927348Abstract: Provided are a method of manufacturing a group-III nitride semiconductor light-emitting device in which a light-emitting device excellent in the internal quantum efficiency and the light extraction efficiency can be obtained, a group-III nitride semiconductor light-emitting device and a lamp. Included are an epitaxial step of forming a semiconductor layer (30) so as to a main surface (20) of a substrate (2), a masking step of forming a protective film on the semiconductor layer (30), a semiconductor layer removal step of removing the protective film and the semiconductor layer (30) by laser irradiation to expose the substrate (2), a grinding step of reducing the thickness of the substrate (2), a polishing step of polishing the substrate (2), a laser processing step of providing processing marks to the inside of the substrate (2), a division step of creating a plurality of light-emitting devices (1) while forming a division surface of the substrate (2) to have a rough surface.Type: GrantFiled: May 12, 2009Date of Patent: January 6, 2015Assignee: Toyoda Gosei Co., Ltd.Inventors: Susumu Sugano, Hisayuki Miki, Hironao Shinohara
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Patent number: 8921174Abstract: Disclosed herein is a method for fabricating a complementary tunneling field effect transistor based on a standard CMOS IC process, which belongs to the field of logic devices and circuits of field effect transistors in ultra large scaled integrated (ULSI) circuits. In the method, an intrinsic channel and body region of a TFET are formed by means of complementary P-well and N-well masks in the standard CMOS IC process to form a well doping, a channel doping and a threshold adjustment by implantation. Further, a bipolar effect in the TFET can be inhibited via a distance between a gate and a drain on a layout so that a complementary TFET is formed. In the method according to the invention, the complementary tunneling field effect transistor (TFET) can be fabricated by virtue of existing processes in the standard CMOS IC process without any additional masks and process steps.Type: GrantFiled: June 14, 2012Date of Patent: December 30, 2014Assignee: Peking UniversityInventors: Ru Huang, Qianqian Huang, Zhan Zhan, Yingxin Qiu, Yangyuan Wang
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Patent number: 8916478Abstract: A CMOS SGT manufacturing method includes a step of forming first and second fin-shaped silicon layers on a substrate, forming a first insulating film around the first and second fin-shaped silicon layers, and forming first and second pillar-shaped silicon layers; a step of forming n-type diffusion layers; a step of forming p-type diffusion layers; a step of forming a gate insulating film and first and second polysilicon gate electrodes; a step of forming a silicide in upper portions of the diffusion layers in upper portions of the first and second fin-shaped silicon layers; and a step of depositing an interlayer insulating film, exposing the first and second polysilicon gate electrodes, etching the first and second polysilicon gate electrodes, and then depositing a metal to form first and second metal gate electrodes.Type: GrantFiled: October 29, 2013Date of Patent: December 23, 2014Assignee: Unisantis Electronics Singapore Pte. Ltd.Inventors: Fujio Masuoka, Hiroki Nakamura
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Patent number: 8907375Abstract: A method of manufacturing a semiconductor device includes the steps of forming a gate electrode of a transistor on an insulator layer on a surface of a semiconductor substrate, forming an isolation region by performing ion implantation of an impurity of a first conductivity type into the semiconductor substrate, forming a lightly doped drain region by performing, after forming a mask pattern including an opening portion narrower than a width of the gate electrode on an upper layer of the gate electrode of the transistor, ion implantation of an impurity of a second conductivity type near the surface of the semiconductor substrate with the mask pattern as a mask, and forming a source region and a drain region of the transistor by performing ion implantation of an impurity of the second conductivity type into the semiconductor substrate after forming the gate electrode of the transistor.Type: GrantFiled: March 29, 2013Date of Patent: December 9, 2014Assignee: Sony CorporationInventor: Masashi Yanagita
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Patent number: 8906811Abstract: A silicon/carbon alloy may be formed in drain and source regions, wherein another portion may be provided as an in situ doped material with a reduced offset with respect to the gate electrode material. For this purpose, in one illustrative embodiment, a cyclic epitaxial growth process including a plurality of growth/etch cycles may be used at low temperatures in an ultra-high vacuum ambient, thereby obtaining a substantially bottom to top fill behavior.Type: GrantFiled: October 13, 2011Date of Patent: December 9, 2014Assignee: Advanced Micro Devices, Inc.Inventors: Thorsten Kammler, Andy Wei, Ina Ostermay
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Patent number: 8901010Abstract: Methods for protecting a texturized region and a lightly doped diffusion region of a solar cell to improve solar cell lifetime and efficiency are disclosed. In an embodiment, an example method includes providing a solar cell having a front side which faces the sun during normal operation and a back side opposite the front side, a silicon substrate and where the silicon substrate includes a texturized region and a lightly doped diffusion region. The method includes placing the solar cell on a receiving medium with the front side of the solar cell placed on an upper surface of the receiving medium, where the upper surface of the receiving medium prevents damage to the to the lightly doped diffusion region and damage to the texturized region on the front side of the solar cell during a contact printing process or transferring. In an embodiment, the lightly doped diffusion region has a doping concentration below 1×1019 cm?3 and the receiving medium includes a material having a moh's hardness in the range of 5-10.Type: GrantFiled: March 15, 2013Date of Patent: December 2, 2014Assignee: SunPower CorporationInventors: Staffan Westerberg, Florito Dennis Tingchuy Vicente, Michael Cudzinovic, Princess Carmi Tomada, Jemellee Guiao
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Patent number: 8878275Abstract: In one general aspect, an apparatus can include a channel region disposed in a semiconductor substrate, a gate dielectric disposed on the channel region and a drift region disposed in the semiconductor substrate adjacent to the channel region. The apparatus can further include a field plate having an end portion disposed between a top surface of the semiconductor substrate and the gate dielectric The end portion can include a surface in contact with the gate dielectric, the surface having a first portion aligned along a first plane non-parallel to a second plane along which a second portion of the surface is aligned, the first plane being non-parallel to the top surface of the semiconductor substrate and the second plane being non-parallel to the top surface of the semiconductor substrate.Type: GrantFiled: February 18, 2013Date of Patent: November 4, 2014Assignee: Fairchild Semiconductor CorporationInventors: Sunglyong Kim, Mark Schmidt, Christopher Nassar, Steven Leibiger
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Patent number: 8846464Abstract: An approach for controlling a critical dimension (CD) of a RMG of a semiconductor device is provided. Specifically, embodiments of the present invention allow for CD consistency between a dummy gate and a subsequent RMG. In a typical embodiment, a dummy gate having a cap layer is formed over a substrate. A re-oxide layer is then formed over the substrate and around the dummy gate. A set of doping implants will then be implanted in the substrate, and the re-oxide layer will subsequently be removed (after the set of doping implants have been implanted). A set of spacers will then be formed along a set of side walls of the dummy gate and an epitaxial layer will be formed around the set of side walls. Thereafter, the dummy gate will be replaced with a metal gate (e.g., an aluminum or tungsten body having a high-k metal liner there-around).Type: GrantFiled: March 13, 2013Date of Patent: September 30, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Bingwu Liu, Baofu Zhu, Nam Sung Kim
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Patent number: 8816438Abstract: A semiconductor device and method of making such device is presented herein. The semiconductor device includes a plurality of memory cells, a plurality of p-n junctions, and a metal trace of a first metal layer. Each of the plurality of memory cells includes a first gate disposed over a first dielectric, a second gate disposed over a second dielectric and adjacent to a sidewall of the first gate, a first doped region in the substrate adjacent to the first gate, and a second doped region in the substrate adjacent to the second gate. The plurality of p-n junctions are electrically isolated from the doped regions of each memory cell. The metal trace extends along a single plane between a via to the second gate of at least one memory cell in the plurality of memory cells, and a via to a p-n junction within the plurality of p-n junctions.Type: GrantFiled: December 14, 2012Date of Patent: August 26, 2014Assignee: Spansion LLCInventors: Chun Chen, Sameer Haddad, Kuo Tung Chang, Mark Ramsbey, Unsoon Kim, Shenqing Fang
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Patent number: 8815694Abstract: Embodiments include semiconductor-on-insulator (SOI) substrates having SOI layers strained by oxidation of the base substrate layer and methods of forming the same. The method may include forming a strained channel region in a semiconductor-on-insulator (SOI) substrate including a buried insulator (BOX) layer above a base substrate layer and a SOI layer above the BOX layer by first etching the SOI layer and the BOX layer to form a first isolation recess region and a second isolation recess region. A portion of the SOI layer between the first isolation recess region and the second isolation recess region defines a channel region in the SOI layer. A portion of the base substrate layer below the first isolation recess region and below the second isolation recess region may then be oxidized to form a first oxide region and a second oxide region, respectively, that apply compressive strain to the channel region.Type: GrantFiled: December 3, 2012Date of Patent: August 26, 2014Assignee: International Business Machines CorporationInventors: Kangguo Cheng, Bruce B. Doris, Balasubramanian S. Haran, Ali Khakifirooz, Pranita Kerber
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Patent number: 8778788Abstract: A semiconductor structure includes a III-nitride substrate with a first side and a second side opposing the first side. The III-nitride substrate is characterized by a first conductivity type and a first dopant concentration. The semiconductor structure also includes a III-nitride epitaxial structure including a first III-nitride epitaxial layer coupled to the first side of the III-nitride substrate and a plurality of III-nitride regions of a second conductivity type. The plurality of III-nitride regions have at least one III-nitride epitaxial region of the first conductivity type between each of the plurality of III-nitride regions. The semiconductor structure further includes a first metallic structure electrically coupled to one or more of the plurality of III-nitride regions and the at least one III-nitride epitaxial region. A Schottky contact is created between the first metallic structure and the at least one III-nitride epitaxial region.Type: GrantFiled: October 11, 2011Date of Patent: July 15, 2014Assignee: Avogy, Inc.Inventors: Andrew P. Edwards, Hui Nie, Isik C. Kizilyalli, Linda Romano, David P. Bour, Richard J. Brown, Thomas R. Prunty
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Patent number: 8772175Abstract: A CMOS SGT manufacturing method includes a step of forming first and second fin-shaped silicon layers on a substrate, forming a first insulating film around the first and second fin-shaped silicon layers, and forming first and second pillar-shaped silicon layers; a step of forming n-type diffusion layers; a step of forming p-type diffusion layers; a step of forming a gate insulating film and first and second polysilicon gate electrodes; a step of forming a silicide in upper portions of the diffusion layers in upper portions of the first and second fin-shaped silicon layers; and a step of depositing an interlayer insulating film, exposing the first and second polysilicon gate electrodes, etching the first and second polysilicon gate electrodes, and then depositing a metal to form first and second metal gate electrodes.Type: GrantFiled: December 4, 2012Date of Patent: July 8, 2014Assignee: Unisantis Electronics Singapore Pte. Ltd.Inventors: Fujio Masuoka, Hiroki Nakamura
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Patent number: 8765584Abstract: A semiconductor device and a manufacturing method therefor, wherein, during lift-off, no cracks due to internal stresses occur in the compound semiconductor layer. A method for manufacturing a semiconductor device having a structure in which a semiconductor layer is bonded on a supporting substrate, including: a device region formation step of forming a device region including the semiconductor layer on a growth substrate through a lift-off layer; a columnar member formation step of forming a columnar member on the growth substrate; a bonding step of bonding the tops of the semiconductor layer and the columnar member to a supporting substrate; a lift-off step of separating the bottom face of the semiconductor layer from the growth substrate by removing the lift-off layer, and not separating the columnar member from the growth substrate; and a step of separating the columnar member from the supporting substrate.Type: GrantFiled: July 26, 2011Date of Patent: July 1, 2014Assignee: Dowa Electronics Materials Co., Ltd.Inventors: Yoshitaka Kadowaki, Tatsunori Toyota
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Patent number: 8753947Abstract: The present invention provides a method of manufacturing an electronic apparatus, such as a lighting device having light emitting diodes (LEDs) or a power generating device having photovoltaic diodes. The exemplary method includes depositing a first conductive medium within a plurality of channels of a base to form a plurality of first conductors; depositing within the plurality of channels a plurality of semiconductor substrate particles suspended in a carrier medium; forming an ohmic contact between each semiconductor substrate particle and a first conductor; converting the semiconductor substrate particles into a plurality of semiconductor diodes; depositing a second conductive medium to form a plurality of second conductors coupled to the plurality of semiconductor diodes; and depositing or attaching a plurality of lenses suspended in a first polymer over the plurality of diodes. In various embodiments, the depositing, forming, coupling and converting steps are performed by or through a printing process.Type: GrantFiled: February 4, 2012Date of Patent: June 17, 2014Assignees: NthDegree Technologies Worldwide Inc, NASAInventors: William Johnstone Ray, Mark David Lowenthal, Neil O. Shotton, Richard A. Blanchard, Mark Allan Lewandowski, Kirk A. Fuller, Donald Odell Frazier
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Patent number: 8753946Abstract: The present invention provides a method of manufacturing an electronic apparatus, such as a lighting device having light emitting diodes (LEDs) or a power generating device having photovoltaic diodes. The exemplary method includes depositing a first conductive medium within a plurality of channels of a base to form a plurality of first conductors; depositing within the plurality of channels a plurality of semiconductor substrate particles suspended in a carrier medium; forming an ohmic contact between each semiconductor substrate particle and a first conductor; converting the semiconductor substrate particles into a plurality of semiconductor diodes; depositing a second conductive medium to form a plurality of second conductors coupled to the plurality of semiconductor diodes; and depositing or attaching a plurality of lenses suspended in a first polymer over the plurality of diodes. In various embodiments, the depositing, forming, coupling and converting steps are performed by or through a printing process.Type: GrantFiled: February 4, 2012Date of Patent: June 17, 2014Assignees: NthDegree Technologies Worldwide Inc, NASA, an agency of the United StatesInventors: William Johnstone Ray, Mark David Lowenthal, Neil O. Shotton, Richard A. Blanchard, Mark Allan Lewandowski, Kirk A. Fuller, Donald Odell Frazier
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Patent number: 8722481Abstract: When forming high-k metal gate electrode structures in a semiconductor device on the basis of a basic transistor design, undue exposure of sensitive materials at end portions of the gate electrode structures of N-channel transistors may be avoided, for instance, prior to and upon incorporating a strain-inducing semiconductor material into the active region of P-channel transistors, thereby contributing to superior production yield for predefined transistor characteristics and performance.Type: GrantFiled: June 4, 2013Date of Patent: May 13, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Stephan-Detlef Kronholz, Peter Javorka, Maciej Wiatr
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Patent number: 8698227Abstract: A mesa-type bidirectional Shockley diode delimited on its two surfaces by a peripheral groove filled with a glassivation including a substrate of a first conductivity type; a layer of the second conductivity type on each side of the substrate; a region of the first conductivity type in each of the layers of the second conductivity type; a buried region of the first conductivity type under each of the regions of the first conductivity type, at the interface between the substrate and the corresponding layer of the second conductivity type, each buried region being complementary in projection with the other; and a peripheral ring under the external periphery of each of the glassivations, of same doping profile as the buried regions.Type: GrantFiled: December 21, 2011Date of Patent: April 15, 2014Assignee: STMicroelectronics (Tours) SASInventors: Yannick Hague, Samuel Menard
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Patent number: 8686515Abstract: A mesa-type bidirectional vertical power component, including a substrate of a first conductivity type; a layer of the second conductivity type on each side of the substrate; first regions of the first conductivity type in each of the layers of the second conductivity type; and, at the periphery of each of its surfaces, two successive grooves, the internal groove crossing the layers of the second conductivity type, second doped regions of the first conductivity type being formed under the surface of the external grooves and having the same doping profile as the first regions.Type: GrantFiled: December 21, 2011Date of Patent: April 1, 2014Assignee: STMicroelectronics (Tours) SASInventors: Yannick Hague, Samuel Menard
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Patent number: 8664691Abstract: A silicon photomultiplier maintains the photon detection efficiency high while increasing a dynamic range, by reducing the degradation of an effective fill factor that follows the increase of cell number density intended for a dynamic range enhancement.Type: GrantFiled: December 19, 2011Date of Patent: March 4, 2014Assignee: Electronics and Telecommunications Research InstituteInventor: Joon Sung Lee
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Patent number: 8604527Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced ?VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.Type: GrantFiled: September 14, 2012Date of Patent: December 10, 2013Assignee: SuVolta, Inc.Inventors: Scott E. Thompson, Damodar R. Thummalapally
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Patent number: 8604530Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.Type: GrantFiled: September 14, 2012Date of Patent: December 10, 2013Assignee: SuVolta, Inc.Inventors: Scott E. Thompson, Damodar R. Thummalapally
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Patent number: 8598643Abstract: According to one embodiment, a nonvolatile semiconductor memory device comprises a first conductive layer, a second conductive layer, a first inter-electrode insulating film, and a third conductive layer stacked above the first conductive layer, a memory film, a semiconductor layer, an insulating member, and a silicide layer. The memory film and the semiconductor layer is formed on the inner surface of through hole provided in the second conductive layer, the first inter-electrode insulating film, and the third conductive layer. The insulating member is buried in a slit dividing the second conductive layer, the first inter-electrode insulating film, and the third conductive layer. The silicide layer is formed on surfaces of the second conductive layer and the third conductive layer in the slit. The distance between the second conductive layer and the third conductive layer along the inner surface of the slit is longer than that of along the stacking direction.Type: GrantFiled: September 18, 2011Date of Patent: December 3, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Kaori Kawasaki, Yoshiaki Fukuzumi, Masaru Kito, Tomoko Fujiwara, Takeshi Imamura, Ryouhei Kirisawa, Hideaki Aochi
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Patent number: 8587041Abstract: According to one embodiment, a solid-state imaging device includes an imaging region including unit pixels which are two-dimensionally arranged on a semiconductor layer and each of which includes a photoelectric conversion unit and a signal scanning circuit unit. The unit pixel includes a transfer gate provided on the semiconductor layer, a photogate provided on the semiconductor layer, a first semiconductor layer of a first conductivity type, which is provided in the semiconductor layer below the photogate, and a second semiconductor layer of the first conductivity type, which is adjacent to the first semiconductor layer and provided in the semiconductor layer between the transfer gate and the photogate.Type: GrantFiled: September 18, 2011Date of Patent: November 19, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Ai Mochizuki, Takeshi Yoshida
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Patent number: 8569821Abstract: Provided are a semiconductor device and a method of forming the same. The method may include forming a gate dielectric layer including a plurality of elements on a substrate; supplying a specific element to the gate dielectric layer; forming a product though reacting the specific element with at least one of the plurality of elements; and removing the product.Type: GrantFiled: September 23, 2011Date of Patent: October 29, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Sangjin Hyun, Yugyun Shin, Hagju Cho, Hyung-seok Hong
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Patent number: 8546855Abstract: Shallow trench isolation silicon-on-insulator (SOI) devices are formed with improved charge protection. Embodiments include an SOI film diode and a P+ substrate junction as a charging protection device. Embodiments also include a conductive path from the SOI transistor drain, through a conductive contact, a metal line, a second conductive contact, an SOI diode, isolated from the transistor, a third conductive contact, a second conductive line, and a fourth conductive contact to a P+-doped substrate contact in the bulk silicon layer of the SOI substrate.Type: GrantFiled: September 22, 2011Date of Patent: October 1, 2013Assignee: Globalfoundres Inc.Inventors: Jingrong Zhou, David Wu, James F. Buller
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Patent number: 8541824Abstract: Some structures and methods to reduce power consumption in devices can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. Some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced ?VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors. Additional structures, configurations, and methods presented herein can be used alone or in conjunction with the DDC to yield additional and different benefits.Type: GrantFiled: July 19, 2012Date of Patent: September 24, 2013Assignee: SuVolta, Inc.Inventors: Scott E. Thompson, Damodar R. Thummalapally
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Patent number: 8530932Abstract: A semiconductor fabrication method includes depositing a dummy gate layer onto a substrate, patterning the dummy gate layer, depositing a hardmask layer over the dummy gate layer, patterning the hardmask layer, etching a recess into the substrate, adjacent the dummy gate layer, depositing a semiconductor material into the recess, removing the hardmask layer, depositing replacement spacers onto the dummy gate layer, performing an oxide deposition over the dummy gate layer and replacement spacers, removing the dummy gate and replacement spacers, thereby forming a gate recess in the oxide and depositing a gate stack into the recess.Type: GrantFiled: March 21, 2012Date of Patent: September 10, 2013Assignee: International Business Machines CorporationInventors: Josephine B. Chang, Michael A. Guillorn, Isaac Lauer, Amlan Majumdar
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Patent number: 8525289Abstract: Sophisticated gate electrode structures may be formed by providing a cap layer including a desired species that may diffuse into the gate dielectric material prior to performing a treatment for stabilizing the sensitive gate dielectric material. In this manner, complex high-k metal gate electrode structures may be formed on the basis of reduced temperatures and doses for a threshold adjusting species compared to conventional strategies. Moreover, a single metal-containing electrode material may be deposited for both types of transistors.Type: GrantFiled: April 12, 2012Date of Patent: September 3, 2013Assignee: GLOBALFOUNDRIES Inc.Inventors: Richard Carter, Martin Trentzsch, Sven Beyer, Rohit Pal
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Patent number: 8481381Abstract: When forming high-k metal gate electrode structures in a semiconductor device on the basis of a basic transistor design, undue exposure of sensitive materials at end portions of the gate electrode structures of N-channel transistors may be avoided, for instance, prior to and upon incorporating a strain-inducing semiconductor material into the active region of P-channel transistors, thereby contributing to superior production yield for predefined transistor characteristics and performance.Type: GrantFiled: September 14, 2011Date of Patent: July 9, 2013Assignee: GLOBALFOUNDRIES Inc.Inventors: Stephan-Detlef Kronholz, Peter Javorka, Maciej Wiatr
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Patent number: 8426287Abstract: A method of manufacturing a semiconductor device includes the steps of forming a gate electrode of a transistor on an insulator layer on a surface of a semiconductor substrate, forming an isolation region by performing ion implantation of an impurity of a first conductivity type into the semiconductor substrate, forming a lightly doped drain region by performing, after forming a mask pattern including an opening portion narrower than a width of the gate electrode on an upper layer of the gate electrode of the transistor, ion implantation of an impurity of a second conductivity type near the surface of the semiconductor substrate with the mask pattern as a mask, and forming a source region and a drain region of the transistor by performing ion implantation of an impurity of the second conductivity type into the semiconductor substrate after forming the gate electrode of the transistor.Type: GrantFiled: November 12, 2010Date of Patent: April 23, 2013Assignee: Sony CorporationInventor: Masashi Yanagita
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Patent number: 8390092Abstract: An area-efficient, high voltage, single polarity ESD protection device (300) is provided which includes an p-type substrate (303); a first p-well (308-1) formed in the substrate and sized to contain n+ and p+ contact regions (310, 312) that are connected to a cathode terminal; a second, separate p-well (308-2) formed in the substrate and sized to contain only a p+ contact region (311) that is connected to an anode terminal; and an electrically floating n-type isolation structure (304, 306, 307-2) formed in the substrate to surround and separate the first and second semiconductor regions. When a positive voltage exceeding a triggering voltage level is applied to the cathode and anode terminals, the ESD protection device triggers an inherent thyristor into a snap-back mode to provide a low impedance path through the structure for discharging the ESD current.Type: GrantFiled: November 12, 2010Date of Patent: March 5, 2013Assignee: Freescale Semiconductor, Inc.Inventors: Amaury Gendron, Chai Ean Gill, Vadim A. Kushner, Rouying Zhan
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Patent number: 8273617Abstract: A suite of novel structures and methods is provided to reduce power consumption in a wide array of electronic devices and systems. Some of these structures and methods can be implemented largely by reusing existing bulk CMOS process flows and manufacturing technology, allowing the semiconductor industry as well as the broader electronics industry to avoid a costly and risky switch to alternative technologies. As will be discussed, some of the structures and methods relate to a Deeply Depleted Channel (DDC) design, allowing CMOS based devices to have a reduced ?VT compared to conventional bulk CMOS and can allow the threshold voltage VT of FETs having dopants in the channel region to be set much more precisely. The DDC design also can have a strong body effect compared to conventional bulk CMOS transistors, which can allow for significant dynamic control of power consumption in DDC transistors.Type: GrantFiled: February 18, 2010Date of Patent: September 25, 2012Assignee: SuVolta, Inc.Inventors: Scott E. Thompson, Damodar R. Thummalapally
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Patent number: 8247329Abstract: A method for forming a semiconductor device includes forming a nanotube region using a thin epitaxial layer formed on the sidewall of a trench in the semiconductor body. The thin epitaxial layer has uniform doping concentration. In another embodiment, a first thin epitaxial layer of the same conductivity type as the semiconductor body is formed on the sidewall of a trench in the semiconductor body and a second thin epitaxial layer of the opposite conductivity type is formed on the first epitaxial layer. The first and second epitaxial layers have uniform doping concentration. The thickness and doping concentrations of the first and second epitaxial layers and the semiconductor body are selected to achieve charge balance. In one embodiment, the semiconductor body is a lightly doped P-type substrate. A vertical trench MOSFET, an IGBT, a Schottky diode and a P-N junction diode can be formed using the same N-Epi/P-Epi nanotube structure.Type: GrantFiled: February 9, 2011Date of Patent: August 21, 2012Assignee: Alpha & Omega Semiconductor, Inc.Inventors: Hamza Yilmaz, Xiaobin Wang, Anup Bhalla, John Chen, Hong Chang
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Patent number: 8232566Abstract: A light emitting device includes a first semiconductor layer of a first conductivity type, an active layer adjacent to the first semiconductor layer, a second semiconductor layer of a second conductivity type and provided adjacent to the active layer, and a passivation layer provided on a side surface of the active layer. The passivation layer may be a semiconductor layer of one of the first conductivity type, the second conductivity type or a first undoped semiconductor layer. A first electrode may be coupled to the first semiconductor layer and a second electrode may be coupled to the second semiconductor layer.Type: GrantFiled: May 3, 2010Date of Patent: July 31, 2012Assignee: LG Innotek Co., Ltd.Inventors: Hyun Kyong Cho, Chang Hee Hong, Hyung Gu Kim
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Patent number: 8216923Abstract: An improved, lower cost method of processing substrates, such as to create solar cells is disclosed. In addition, a modified substrate carrier is disclosed. The carriers typically used to carry the substrates are modified so as to serve as shadow masks for a patterned implant. In some embodiments, various patterns can be created using the carriers such that different process steps can be performed on the substrate by changing the carrier or the position with the carrier. In addition, since the alignment of the substrate to the carrier is critical, the carrier may contain alignment features to insure that the substrate is positioned properly on the carrier. In some embodiments, gravity is used to hold the substrate on the carrier, and therefore, the ions are directed so that the ion beam travels upward toward the bottom side of the carrier.Type: GrantFiled: October 1, 2010Date of Patent: July 10, 2012Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Nicholas Bateman, Kevin Daniels, Atul Gupta, Russell Low, Benjamin Riordon, Robert Mitchell, Steven Anella
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Patent number: 8198192Abstract: Sophisticated gate electrode structures may be formed by providing a cap layer including a desired species that may diffuse into the gate dielectric material prior to performing a treatment for stabilizing the sensitive gate dielectric material. In this manner, complex high-k metal gate electrode structures may be formed on the basis of reduced temperatures and doses for a threshold adjusting species compared to conventional strategies. Moreover, a single metal-containing electrode material may be deposited for both types of transistors.Type: GrantFiled: May 7, 2010Date of Patent: June 12, 2012Assignee: GlobalFoundries Inc.Inventors: Richard Carter, Martin Trentzsch, Sven Beyer, Rohit Pal
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Patent number: 8198104Abstract: A method of manufacturing a semiconductor device on a semiconductor substrate, includes the steps of forming a first metal film on a front surface of the semiconductor substrate; forming a second metal film on the surface of the first metal film; activating a surface of the second metal film to provide an activated surface; and forming a plated film on the activated surface by a wet plating method in a plating bath that includes a reducing agent that is oxidized during plating and that has a rate of oxidation, wherein the second metal film is a metal film mainly composed of a first substance that enhances the rate of oxidation of the reducing agent in the plating bath. Wet plating is preferably an electroless process.Type: GrantFiled: March 22, 2010Date of Patent: June 12, 2012Assignee: Fuji Electric Co., Ltd.Inventors: Yuichi Urano, Takayasu Horasawa
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Patent number: 8198194Abstract: Methods of forming p-channel MOSFETs use halo-implant steps that are performed relatively early in the fabrication process. These methods include forming a gate electrode having first sidewall spacers thereon, on a semiconductor substrate, and then forming a sacrificial sidewall spacer layer on the gate electrode. A mask layer then patterned on the gate electrode. The sacrificial sidewall spacer layer is selectively etched to define sacrificial sidewall spacers on the first sidewall spacers, using the patterned mask layer as an etching mask. A PFET halo-implant of dopants is then performed into portions of the semiconductor substrate that extend adjacent the gate electrode, using the sacrificial sidewall spacers as an implant mask. Following this implant step, source and drain region trenches are etched into the semiconductor substrate, on opposite sides of the gate electrode. These source and drain region trenches are then filled by epitaxially growing SiGe source and drain regions therein.Type: GrantFiled: March 23, 2010Date of Patent: June 12, 2012Assignees: Samsung Electronics Co., Ltd., Chartered Semiconductor Manufacturing Ltd., International Business Machines CorporationInventors: Jong Ho Yang, Hyung-rae Lee, Jin-Ping Han, Chung Woh Lai, Henry K. Utomo, Thomas W. Dyer
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Patent number: 8178400Abstract: A semiconductor fabrication method includes depositing a dummy gate layer onto a substrate, patterning the dummy gate layer, depositing a hardmask layer over the dummy gate layer, patterning the hardmask layer, etching a recess into the substrate, adjacent the dummy gate layer, depositing a semiconductor material into the recess, removing the hardmask layer, depositing replacement spacers onto the dummy gate layer, performing an oxide deposition over the dummy gate layer and replacement spacers, removing the dummy gate and replacement spacers, thereby forming a gate recess in the oxide and depositing a gate stack into the recess.Type: GrantFiled: September 28, 2009Date of Patent: May 15, 2012Assignee: International Business Machines CorporationInventors: Josephine B. Chang, Michael A. Guillorn, Isaac Lauer, Amlan Majumdar
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Patent number: 8138070Abstract: A method of forming a multi-doped junction is disclosed. The method includes providing a first substrate and a second substrate. The method also includes depositing a first ink on a first surface of each of the first substrate and the second substrate, the first ink containing a first set of nanoparticles and a first set of solvents, the first set of nanoparticles containing a first concentration of a first dopant. The method further includes depositing a second ink on a second surface of each of the first substrate and the second substrate, the second ink containing a second set of nanoparticles and a second set of solvents, the second set of nanoparticles containing a second concentration of a second dopant. The method also includes placing the first substrate and the second substrate in a back to back configuration; and heating the first substrate and the second substrate in a first drive-in ambient to a first temperature and for a first time period.Type: GrantFiled: November 25, 2009Date of Patent: March 20, 2012Assignee: Innovalight, Inc.Inventors: Maxim Kelman, Michael Burrows, Dmitry Poplavskyy, Giuseppe Scardera, Daniel Kray, Elena Rogojina
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Patent number: 8133768Abstract: The present invention provides a method of manufacturing an electronic apparatus, such as a lighting device having light emitting diodes (LEDs) or a power generating device having photovoltaic diodes. The exemplary method includes depositing a first conductive medium within a plurality of channels of a base to form a plurality of first conductors; depositing within the plurality of channels a plurality of semiconductor substrate particles suspended in a carrier medium; forming an ohmic contact between each semiconductor substrate particle and a first conductor; converting the semiconductor substrate particles into a plurality of semiconductor diodes; depositing a second conductive medium to form a plurality of second conductors coupled to the plurality of semiconductor diodes; and depositing or attaching a plurality of lenses suspended in a first polymer over the plurality of diodes. In various embodiments, the depositing, forming, coupling and converting steps are performed by or through a printing process.Type: GrantFiled: September 15, 2009Date of Patent: March 13, 2012Assignees: NthDegree Technologies Worldwide Inc, The United States of America as represented by the Unites States National Aeronautics and Space AdministrationInventors: William Johnstone Ray, Mark D. Lowenthal, Neil O. Shotton, Richard A. Blanchard, Mark Allan Lewandowski, Kirk A. Fuller, Donald Odell Frazier