Patents Issued in March 31, 2015
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Patent number: 8994079Abstract: A graphene electronic device includes a multi-layered gate insulating layer between a graphene channel layer and a gate electrode. The multi-layered gate insulating layer includes an organic insulating layer and an inorganic insulating layer on the organic insulating layer.Type: GrantFiled: June 8, 2012Date of Patent: March 31, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-jae Song, Byung-jin Cho, Sun-ae Seo, Woo-cheol Shin
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Patent number: 8994080Abstract: Stacked transistor devices include a lower channel layer formed on a substrate; a pair of vertically aligned source regions formed over the lower channel layer, where the pair of source regions are separated by an insulator; a pair of vertically aligned drain regions formed on the lower channel layer, where the pair of drain regions are separated by an insulator; a pair of vertically aligned gate regions formed on the lower gate dielectric layer; and an upper channel layer formed over the source regions, drain regions, and gate regions.Type: GrantFiled: August 15, 2013Date of Patent: March 31, 2015Assignee: International Business Machines CorporationInventors: Dechao Guo, Shu-Jen Han, Yu Lu, Keith Kwong Hon Wong
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Patent number: 8994081Abstract: A structure is provided that includes at least one multilayered stacked semiconductor material structure located on a semiconductor substrate and at least one sacrificial gate material structure straddles a portion of the at least one multilayered stacked semiconductor structure. The at least one multilayered stacked semiconductor material structure includes alternating layers of sacrificial semiconductor material and semiconductor nanowire template material. End segments of each layer of sacrificial semiconductor material are then removed and filled with a dielectric spacer. Source/drain regions are formed from exposed sidewalls of each layer of semiconductor nanowire template material, and thereafter the at least one sacrificial gate material structure and remaining portions of the sacrificial semiconductor material are removed suspending each semiconductor material.Type: GrantFiled: September 16, 2013Date of Patent: March 31, 2015Assignee: International Business Machines CorporationInventor: Effendi Leobandung
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Patent number: 8994082Abstract: Transistors, methods of manufacturing thereof, and image sensor circuits with reduced random telegraph signal (RTS) noise are disclosed. In one embodiment, a transistor includes a channel disposed between two isolation regions in a workpiece. The channel has edge regions proximate the isolation regions and a central region between the edge regions. The transistor includes a gate dielectric disposed over the channel, and a gate disposed over the gate dielectric. The transistor includes a voltage threshold modification feature proximate the edge regions configured to increase a voltage threshold of the transistor proximate edge regions relative to the central region of the channel.Type: GrantFiled: September 30, 2011Date of Patent: March 31, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Feng-Chi Hung, Jhy-Jyi Sze, Shou-Gwo Wuu
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Patent number: 8994083Abstract: In an X-Y address type solid state image pickup device represented by a CMOS image sensor, a back side light reception type pixel structure is adopted in which a wiring layer is provided on one side of a silicon layer including photo-diodes formed therein. and visible light is taken in from the other side of the silicon layer, namely, from the side (back side) opposite to the wiring layer. wiring can be made without taking a light-receiving surface into account, and the degree of freedom in wiring for the pixels is enhanced.Type: GrantFiled: July 3, 2012Date of Patent: March 31, 2015Assignee: Sony CorporationInventors: Ryoji Suzuki, Keiji Mabuchi, Tomonori Mori
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Patent number: 8994084Abstract: The present invention provides a dynamic random access memory (DRAM) including a plurality of transistors formed in a semiconductor substrate, wherein each of the transistors includes a vertical channel region. A plurality of bit line contained trenches is formed in the semiconductor substrate. Each of the bit line contained trenches comprises two bit lines, and each of the bit lines is electrically connected to an adjacent transistor. Each two sidewalls of each of the bit line contained trenches have a contact formed thereon. A plurality of word lines are formed over the plurality of bit lines and electrical connect to the plurality of transistors. Furthermore, a method for fabricating the DRAM is also provided.Type: GrantFiled: August 30, 2011Date of Patent: March 31, 2015Assignee: Winbond Electronics Corp.Inventor: Chih-Hao Lin
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Patent number: 8994085Abstract: An integrated circuit comprising an N+ type layer, a buffer layer arranged on the N+ type layer; a P type region formed on with the buffer layer; an insulator layer overlying the N+ type layer, a silicon layer overlying the insulator layer, an embedded RAM FET formed in the silicon layer and connected with a conductive node of a trench capacitor that extends into the N+ type layer, the N+ type layer forming a plate electrode of the trench capacitor, a first contact through the silicon layer and the insulating layer and electrically connecting to the N+ type layer, a first logic RAM FET formed in the silicon layer above the P type region, the P type region functional as a P-type back gate of the first logic RAM FET, and a second contact through the silicon layer and the insulating layer and electrically connecting to the P type region.Type: GrantFiled: July 18, 2012Date of Patent: March 31, 2015Assignee: International Business Machines CorporationInventors: Veeraraghavan S. Basker, Kangguo Cheng, Bruce B. Doris, Terence B. Hook, Ali Khakifirooz, Pranita Kulkarni, Tenko Yamashita, Chun-Chen Yeh
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Patent number: 8994086Abstract: The invention provides a semiconductor device which is non-volatile, easily manufactured, and can be additionally written. A semiconductor device of the invention includes a plurality of transistors, a conductive layer which functions as a source wiring or a drain wiring of the transistors, and a memory element which overlaps one of the plurality of transistors, and a conductive layer which functions as an antenna. The memory element includes a first conductive layer, an organic compound layer and a phase change layer, and a second conductive layer stacked in this order. The conductive layer which functions as an antenna and a conductive layer which functions as a source wiring or a drain wiring of the plurality of transistors are provided on the same layer.Type: GrantFiled: October 14, 2010Date of Patent: March 31, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hiroko Abe, Yukie Nemoto, Ryoji Nomura, Mikio Yukawa
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Patent number: 8994087Abstract: According to one embodiment, a semiconductor device includes a substrate and a first transistor. The substrate has a major surface. The first transistor is provided on the major surface. The first transistor includes a first stacked body, first and second conductive sections, a first gate electrode, and a first gate insulating film. The first stacked body includes first semiconductor layers and first insulating layers alternately stacked. The first semiconductor layers have a side surface. The first conductive section is electrically connected to one of the first semiconductor layers. The second conductive section is apart from the first conductive section and electrically connected to the one of the first semiconductor layers. The first gate electrode is provided between the first and second conductive sections and opposed to the side surface. The first gate insulating film is provided between the first gate electrode and the first semiconductor layers.Type: GrantFiled: January 10, 2013Date of Patent: March 31, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Masumi Saitoh, Toshinori Numata, Kiwamu Sakuma, Haruka Kusai
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Patent number: 8994088Abstract: A semiconductor storage device according to the present embodiment includes a semiconductor substrate. A memory cell array includes a plurality of memory cells provided on the semiconductor substrate in an array direction. A selection gate transistor is provided on an end of the memory cell array, and is used to select the memory cells from the memory cell arrays. A dummy cell is provided between a gate electrode of one of the memory cells on the end of the memory cell array and a gate electrode of the selection gate transistor. The width of a gate electrode of the dummy cell in the array direction of the memory cells and the dummy cell is twice or more as large as the width of the gate electrode of one of the memory cells.Type: GrantFiled: September 6, 2013Date of Patent: March 31, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Koichi Matsuno, Yoshihiro Yanai
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Patent number: 8994089Abstract: In some embodiments, an interlayer polysilicon dielectric cap disposed atop a substrate having a first floating gate, a second floating gate and an isolation layer disposed between the first floating gate and the second floating gate may include: a first nitrogen containing layer disposed atop an upper portion and sidewalls of the first floating gate and second floating gate; a first oxygen containing layer disposed atop the first nitrogen containing layer and an upper surface of the isolation layer; a second nitrogen containing layer disposed atop an upper portion and sidewalls of the first oxygen containing layer; and a second oxygen containing layer disposed atop the second nitrogen containing layer and an upper surface of the first oxygen containing layer.Type: GrantFiled: November 11, 2011Date of Patent: March 31, 2015Assignee: Applied Materials, Inc.Inventors: Matthew S. Rogers, Klaus Schuegraf
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Patent number: 8994090Abstract: A nonvolatile semiconductor storage device including a memory cell region including a memory cell having a charge storing layer above a gate insulating film and a control electrode above the charge storing layer via an interelectrode insulating film; and a peripheral circuit region including a peripheral element having a first polysilicon and a first insulating film above the first polysilicon; wherein the charge storing layer includes a polysilicon doped with P-type impurity including a first upper region contacting the interelectrode insulating film and having a first doped layer doped with carbon or nitrogen, and at least a portion of a region below the first doped layer is neither doped with carbon nor nitrogen, and wherein the first polysilicon includes a second upper region contacting the first insulating film and having a second doped layer doped with carbon or nitrogen, the first and the second doped layers having equal thickness.Type: GrantFiled: September 12, 2013Date of Patent: March 31, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Wataru Sakamoto, Kazuma Takahashi, Hideto Takekida
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Patent number: 8994091Abstract: A non-volatile memory device having a vertical structure includes a semiconductor layer, a sidewall insulation layer extending in a vertical direction on the semiconductor layer, and having one or more protrusion regions, first control gate electrodes arranged in the vertical direction on the semiconductor layer, and respectively contacting one of portions of the sidewall insulation layer where the one or more protrusion regions are not formed and second control gate electrodes arranged in the vertical direction on the semiconductor layer, and respectively contacting one of the one or more protrusion regions.Type: GrantFiled: April 27, 2012Date of Patent: March 31, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Hoon Lee, Jin-Gyun Kim, Koong-Hyun Nam, Ki-Hyun Hwang, Hun-Hyeong Lim, Dong-Kyum Kim
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Patent number: 8994092Abstract: A semiconductor device including a nonvolatile memory cell with a high performance and also a high reliability is provided. A nonvolatile memory cell includes a first n-well, a second n-well separated from the first n-well in a first direction, a selection transistor formed in the first n-well, a floating gate electrode formed to overlap with a part of the first n-well and a part of the second n-well in a plan view, and an n-conductivity-type semiconductor regions formed in the second n-well on both sides of the floating gate electrode. In write operation, ?7 V is applied to the drain of a selected nonvolatile memory cell, ?8 V is applied to the gate electrode of the selection transistor, and further ?3 V is applied to the n-conductivity-type semiconductor region for obtaining a higher write speed. Thereby, a selected nonvolatile memory cell is discriminated from an unselected nonvolatile memory cell.Type: GrantFiled: December 11, 2013Date of Patent: March 31, 2015Assignee: Renesas Electronics CorporationInventor: Hideaki Yamakoshi
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Patent number: 8994093Abstract: A semiconductor device includes bit lines provided in a semiconductor substrate; an ONO film that is provided along the surface of the semiconductor substrate and is made of a tunnel oxide film, a trap layer, and a top oxide film; and an oxide film that is provided on the surface of the semiconductor substrate in the middle between the bit lines and contacts the side face of the ONO film, in which the film thickness of the oxide film is larger than the sum of the thicknesses of the tunnel oxide film and the top oxide film, and smaller than the thickness of the ONO film.Type: GrantFiled: March 14, 2008Date of Patent: March 31, 2015Assignee: Spansion LLCInventors: Yukio Hayakawa, Yukihiro Utsuno
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Patent number: 8994094Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes first and second stacked body, first and second semiconductor pillars, a connecting portion, a first memory film, and a dividing portion. The stacked bodies include a plurality of electrode films stacked along a first axis and as interelectrode insulating film provided between the electrode films. The first and second semiconductor pillars penetrate through the first and second stacked bodies along the first axis, respectively. The connecting portion electrically connects the first and second semiconductor pillars. The first memory film is provided between the electrode film and the semiconductor pillar. The dividing portion electrically divides the first and second electrode films from each other between the first semiconductor pillar and the second semiconductor pillar, is in contact with the connecting portion, and includes a stacked film including a material used for the first memory film.Type: GrantFiled: September 18, 2011Date of Patent: March 31, 2015Assignee: Kabushiki Kaisha ToshibaInventor: Toru Matsuda
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Patent number: 8994095Abstract: A semiconductor memory device with a buried drain is provided. The device comprises a semiconductor substrate (107); one drain region (108) of a first doping type; two source regions (101a, 101b) of a second doping type; and a stacked gate provided on the semiconductor substrate for capturing electrons. A memory array formed by a plurality of semiconductor memory devices and a manufacturing method thereof are also provided. The semiconductor memory device has the advantages of small cell area, simple manufacturing process and the like. The manufacturing cost of the memory device is reduced and the storing density of the memory device is increased.Type: GrantFiled: December 24, 2010Date of Patent: March 31, 2015Assignee: Fudan UniversityInventors: Pengfei Wang, Qingqing Sun, Shijin Ding, Wei Zhang
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Patent number: 8994096Abstract: The invention relates to a multi-transistor, e.g. a two-transistor memory cell with an enhancement junction field effect transistor (JFET) as the access gate transistor. In one embodiment, the JFET is provided as a self-aligned JFET. Accordingly, and advantageous over the prior art, the invention allows for a method for manufacturing a multi-transistor, e.g. a two-transistor memory cell comprising a JFET as the access transistor without adding any additional masks and/or processing steps. Such a multi-transistor, e.g. a two-transistor memory cell according to invention, provides an improved reliability.Type: GrantFiled: October 22, 2009Date of Patent: March 31, 2015Assignee: NXP B.V.Inventor: Dusan Golubovic
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Patent number: 8994097Abstract: A device includes a semiconductor substrate, a gate stack over the semiconductor substrate, and a stressor region having at least a portion in the semiconductor substrate and adjacent to the gate stack. The stressor region includes a first stressor region having a first p-type impurity concentration, a second stressor region over the first stressor region, wherein the second stressor region has a second p-type impurity concentration, and a third stressor region over the second stressor region. The third stressor region has a third p-type impurity concentration. The second p-type impurity concentration is lower than the first and the third p-type impurity concentrations.Type: GrantFiled: March 8, 2012Date of Patent: March 31, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Mei-Hsuan Lin, Chih-Hsun Lin, Ching-Hua Chu, Ling-Sung Wang
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Patent number: 8994098Abstract: A first pillar transistor and a second pillar transistor are arranged with no other pillar transistor therebetween, a distance between a first silicon pillar in the first pillar transistor and a second silicon pillar in the second pillar transistor is smaller than a distance between a third silicon pillar in a third pillar transistor and the first silicon pillar.Type: GrantFiled: July 10, 2013Date of Patent: March 31, 2015Assignee: PS4 Luxco S.A.R.L.Inventors: Mitsuki Kouda, Kazuteru Ishizuka, Kiyotaka Endo
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Patent number: 8994099Abstract: A method of making multi-level contacts. The method includes providing an in-process multilevel device including at least one device region and at least one contact region. The contact region includes a plurality of electrically conductive layers configured in a step pattern. The method also includes forming a conformal etch stop layer over the plurality of electrically conductive layers, forming a first electrically insulating layer over the etch stop layer, forming a conformal sacrificial layer over the first electrically insulating layer and forming a second electrically insulating layer over the sacrificial layer. The method also includes etching a plurality of contact openings through the etch stop layer, the first electrically insulating layer, the sacrificial layer and the second electrically insulating layer in the contact region to the plurality of electrically conductive layers.Type: GrantFiled: August 27, 2014Date of Patent: March 31, 2015Assignee: Sandisk Technologies Inc.Inventors: Yao-Sheng Lee, Zhen Chen, Syo Fukata
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Patent number: 8994100Abstract: The present invention provides a semiconductor device designed to prevent an electric field from being concentrated in the vicinity of a groove portion. The semiconductor includes a semiconductor layer, a source region, a drain region, a source offset region, a drain offset region, a groove portion, a gate insulating film, a gate electrode, and an embedded region. The groove portion is provided in at least a position between the source offset region and the drain offset region in the semiconductor layer in a plan view, in a direction from the source offset region to the drain offset region in a plan view. The gate insulating film covers a side and a bottom of the groove portion. The gate electrode is provided only within the groove portion in a plan view, and contacts the gate insulating film.Type: GrantFiled: February 12, 2013Date of Patent: March 31, 2015Assignee: Renesas Electronics CorporationInventor: Hiroki Matsumoto
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Patent number: 8994101Abstract: A method for fabricating a semiconductor device includes forming a plurality of trenches using a first mask. The trenches include source pickup trenches located in outside a termination area and between two adjacent active areas. First and second conductive regions separated by an intermediate dielectric region are formed using a second mask. A first electrical contact to the first conductive region and a second electrical contact to the second conductive region are formed using a third mask and forming a source metal region. Contacts to a gate metal region are formed using a fourth mask. A semiconductor device includes a source pickup contact located outside a termination region and outside an active region of the device.Type: GrantFiled: April 18, 2013Date of Patent: March 31, 2015Assignee: Alpha and Omega Semiconductor IncorporatedInventors: Hong Chang, Yi Su, Wenjun Li, Limin Weng, Jongoh Kim, John Chen
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Patent number: 8994102Abstract: A semiconductor device of the present invention includes a semiconductor layer, a plurality of gate trenches formed in the semiconductor layer, a gate electrode filled via a gate insulating film in the plurality of gate trenches, an n+-type emitter region, a p-type base region, and an n?-type drift region disposed, lateral to each gate trench, in order in a depth direction of the gate trench from a front surface side of the semiconductor layer, a p+-type collector region disposed on a back surface side of the semiconductor layer with respect to the n?-type drift region, an emitter trench formed between the plurality of gate trenches adjacent to each other, and a buried electrode filled via an insulating film in the emitter trench, and electrically connected with the n+-type emitter region, and the emitter trench is disposed at an interval of 2 ?m or less via an n?-type drift region with the gate trench.Type: GrantFiled: August 19, 2013Date of Patent: March 31, 2015Assignee: Rohm Co., Ltd.Inventor: Akihiro Hikasa
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Patent number: 8994103Abstract: A lateral double-diffused metal-oxide-semiconductor transistor device includes a substrate having at least a shallow trench isolation formed therein, an epitaxial layer encompassing the STI in the substrate, a gate, and a drain region and a source region formed in the substrate at respective two sides of the gate. The epitaxial layer, the source region and the drain region include a first conductivity type. The gate includes a first portion formed on the substrate and a second portion extending into the STI.Type: GrantFiled: July 10, 2013Date of Patent: March 31, 2015Assignee: United Microelectronics Corp.Inventors: Wei-Lin Chen, Tseng-Hsun Liu, Kuan-Yu Chen, Chiu-Ling Lee, Chiu-Te Lee, Chih-Chung Wang
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Patent number: 8994104Abstract: Techniques are disclosed for forming transistor devices having reduced parasitic contact resistance relative to conventional devices. The techniques can be implemented, for example, using a standard contact stack such as a series of metals on, for example, silicon or silicon germanium (SiGe) source/drain regions. In accordance with one example such embodiment, an intermediate boron doped germanium layer is provided between the source/drain and contact metals to significantly reduce contact resistance. Numerous transistor configurations and suitable fabrication processes will be apparent in light of this disclosure, including both planar and non-planar transistor structures (e.g., FinFETs), as well as strained and unstrained channel structures. Graded buffering can be used to reduce misfit dislocation. The techniques are particularly well-suited for implementing p-type devices, but can be used for n-type devices if so desired.Type: GrantFiled: September 30, 2011Date of Patent: March 31, 2015Assignee: Intel CorporationInventors: Glenn A. Glass, Anand S. Murthy, Tahir Ghani
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Patent number: 8994105Abstract: A semiconductor structure for facilitating an integration of power devices on a common substrate includes a first insulating layer formed on the substrate and an active region having a first conductivity type formed on at least a portion of the first insulating layer. A first terminal is formed on an upper surface of the structure and electrically connects with at least one other region having the first conductivity type formed in the active region. A buried well having a second conductivity type is formed in the active region and is coupled with a second terminal formed on the upper surface of the structure. The buried well and the active region form a clamping diode which positions a breakdown avalanche region between the buried well and the first terminal. A breakdown voltage of at least one of the power devices is a function of characteristics of the buried well.Type: GrantFiled: May 6, 2013Date of Patent: March 31, 2015Assignee: Azure Silicon LLCInventor: Jacek Korec
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Patent number: 8994106Abstract: A transistor structure includes a p-type substrate, an n-well implanted in the substrate, a p-doped p-body implanted in the n-well, first and second transistors, an input line, and an output line. The first transistor includes a first gate, a first source, and a first drain, and the second transistor includes a second gate, a second source, and a second drain. The first source includes a first p+ region and a first n+ region, and the first drain includes a second n+ region. The second source includes a third n+ region and a second p+ region, and the second drain includes a third p+ region. The input line connects the first gate and the second gate, and the output line connects the second n+ region and the third p+ region.Type: GrantFiled: February 7, 2014Date of Patent: March 31, 2015Assignee: Volterra Semiconductor LLCInventors: Budong You, Marco A. Zuniga
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Patent number: 8994107Abstract: Semiconductor devices and methods of forming semiconductor devices are provided herein. In an embodiment, a semiconductor device includes a semiconductor substrate. A source region and a drain region are disposed in the semiconductor substrate. A channel region is defined in the semiconductor substrate between the source region and the drain region. A gate dielectric layer overlies the channel region of the semiconductor substrate, and a gate electrode overlies the gate dielectric layer. The channel region includes a first carbon-containing layer, a doped layer overlying the first carbon-containing layer, a second carbon-containing layer overlying the doped layer, and an intrinsic semiconductor layer overlying the second carbon-containing layer. The doped layer includes a dopant that is different than carbon.Type: GrantFiled: August 27, 2012Date of Patent: March 31, 2015Assignee: GLOBALFOUNDRIES, Inc.Inventors: El Mehdi Bazizi, Francis Benistant
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Patent number: 8994108Abstract: In one aspect, a method of fabricating an electronic device includes the following steps. An alternating series of device and sacrificial layers are formed in a stack on an SOI wafer. Nanowire bars are etched into the device/sacrificial layers such that each of the device layers in a first portion of the stack and each of the device layers in a second portion of the stack has a source region, a drain region and a plurality of nanowire channels connecting the source region and the drain region. The sacrificial layers are removed from between the nanowire bars. A conformal gate dielectric layer is selectively formed surrounding the nanowire channels in the first portion of the stack which serve as a channel region of a nanomesh FET transistor. Gates are formed surrounding the nanowire channels in the first and second portions of the stack.Type: GrantFiled: August 21, 2013Date of Patent: March 31, 2015Assignee: International Business Machines CorporationInventors: Josephine B. Chang, Isaac Lauer, Chung-Hsun Lin, Jeffrey W. Sleight
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Patent number: 8994109Abstract: A method for preparing a multilayer substrate includes the step of deposing an epitaxial ?-Al2O3 Miller index (001) layer on a Si Miller index (001) substrate.Type: GrantFiled: March 15, 2013Date of Patent: March 31, 2015Assignees: STMicroelectronics SA, Centre National de la Recherche Scientifique, Ecole Centrale de LyonInventors: Clement Merckling, Mario El-Kazzi, Guillaume Saint-Girons, Guy Hollinger
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Patent number: 8994110Abstract: A semiconductor integrated circuit is provided. In the semiconductor integrated circuit, each of ESD protection circuitries is disposed between two of TSV bumps arrayed in a matrix, the two being arranged adjacent to each other. First main power lines are disposed to overlap P-channel ESD protection elements. Second main power lines are disposed to overlap N-channel ESD protection elements. The first and second main power lines are arranged orthogonally to each other.Type: GrantFiled: November 25, 2013Date of Patent: March 31, 2015Assignee: Renesas Electronics CorporationInventor: Kenichi Ishikawa
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Patent number: 8994111Abstract: Diffusion regions having the same conductivity type are arranged on a side of a second wiring and a side of a third wiring, respectively under a first wiring connected to a signal terminal. Diffusion regions are separated in a whole part or one part of a range in a Y direction. That is, under first wiring, diffusion regions are only formed in parts opposed to diffusion regions formed under the second wiring and third wiring connected to a power supply terminal or a ground terminal, and a diffusion region is not formed in a central part in an X direction. Therefore, terminal capacity of the signal terminal can be reduced without causing ESD resistance to be reduced, in an ESD protection circuit with the signal terminal.Type: GrantFiled: March 11, 2014Date of Patent: March 31, 2015Assignee: Panasonic CorporationInventor: Shiro Usami
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Patent number: 8994112Abstract: A Fin FET whose fin (12) has an upper portion (30) doped with a first conductivity type and a lower portion (32) doped with a second conductivity type, wherein the junction (34) between the upper portion (30) and the lower portion (32) acts as a diode; and the FinFET further comprises: at least one layer (26, 28) of high-k dielectric material (for example Si3N4) adjacent at least one side of the fin (12) for redistributing a potential drop more evenly over the diode, compared to if the at least one layer of high-k dielectric material were not present, when the upper portion (30) is connected to a first potential and the lower portion (32) is connected to a second potential thereby providing the potential drop across the junction (34). Examples of the k value for the high-k dielectric material are k?5, k?7.5, and k?20.Type: GrantFiled: September 10, 2009Date of Patent: March 31, 2015Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Gerben Doornbos, Robert Lander
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Patent number: 8994113Abstract: A semiconductor device formed in a semiconductor substrate includes an isolation trench in the semiconductor substrate to laterally insulate adjacent components of the semiconductor device. A lateral isolation layer is disposed in the isolation trench. The semiconductor device further includes a source region and a drain region, and a body region and a drift region disposed between the source region and the drain region. The semiconductor device additionally includes a gate electrode adjacent to at least a portion of the body region and a field plate adjacent to at least a portion of the drift region. A field dielectric layer is disposed between the drift region and the field plate. A top surface of the field dielectric layer is disposed at a greater height measured from a first main surface of the semiconductor substrate than a top surface of the lateral isolation layer.Type: GrantFiled: April 17, 2013Date of Patent: March 31, 2015Assignee: Infineon Technologies Dresden GmbHInventors: Marc Strasser, Karl-Heinz Gebhardt, Andreas Meiser, Till Schloesser
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Patent number: 8994114Abstract: An apparatus having an active device, a plurality of traces and one or more areas is disclosed. The active device may have a channel layer. A buffer layer is generally disposed between the channel layer and a substrate. A parasitic layer may be formed at an interface between the buffer layer and the substrate. The traces may be connected to the active device. The areas are generally proximate at least one of (i) the active device and (ii) at least two of the traces from which the parasitic layer is removed.Type: GrantFiled: November 13, 2013Date of Patent: March 31, 2015Assignee: M/A-COM Technology Solutions Holdings, Inc.Inventors: Jonathan Leckey, Lyndon Pattison, Andrew Patterson, Timothy E. Boles
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Patent number: 8994115Abstract: A semiconductor structure for facilitating an integration of power devices on a common substrate includes a first insulating layer formed on the substrate and an active region having a first conductivity type formed on at least a portion of the first insulating layer. A first terminal is formed on an upper surface of the structure and electrically connects with at least one other region having the first conductivity type formed in the active region. A buried well having a second conductivity type is formed in the active region and is coupled with a second terminal formed on the upper surface of the structure. The buried well and the active region form a clamping diode which positions a breakdown avalanche region between the buried well and the first terminal. A breakdown voltage of at least one of the power devices is a function of characteristics of the buried well.Type: GrantFiled: June 16, 2014Date of Patent: March 31, 2015Assignee: Silanna Semiconductor U.S.A., Inc.Inventors: Jacek Korec, Boyi Yang
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Patent number: 8994116Abstract: Provided is a method of fabricating a semiconductor device that includes forming first and second fins over first and second regions of a substrate, forming first and second gate structures over the first and second fins, the first and second gate structures including first and second poly gates, forming an inter-level dielectric (ILD) over the substrate, performing a chemical mechanical polishing on the ILD to expose the first and second poly gates, forming a mask to protect the first poly gate of the first gate structure, removing the second poly gate thereby forming a first trench, removing the mask, partially removing the first poly gate thereby forming a second trench, forming a work function metal layer partially filling the first and second trenches, forming a fill metal layer filling a remainder of the first and second trenches, and removing the metal layers outside the first and second trenches.Type: GrantFiled: November 19, 2013Date of Patent: March 31, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Tian-Choy Gan, Hsien-Chin Lin, Chia-Pin Lin, Shyue-Shyh Lin, Li-Shiun Chen, Shin Hsien Liao
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Patent number: 8994117Abstract: A semiconductor chip having a P? substrate and an N+ epitaxial layer grown on the P? substrate is shown. A P? circuit layer is grown on top of the N+ epitaxial layer. A first moat having an electrically quiet ground connected to a first N+ epitaxial region is created by isolating the first N+ epitaxial region with a first deep trench. The first moat is surrounded, except for a DC path, by a second moat with a second N+ epitaxial region, created by isolating the second N+ epitaxial region with a second deep trench. The second moat may be arranged as a rectangular spiral around the first moat.Type: GrantFiled: December 18, 2012Date of Patent: March 31, 2015Assignee: International Business Machines CorporationInventors: Joel T. Ficke, David M. Friend, James D. Strom, Erik S. Unterborn
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Patent number: 8994118Abstract: Semiconductor devices comprising a getter material are described. The getter material can be located in or over the active region of the device and/or in or over a termination region of the device. The getter material can be a conductive or an insulating material. The getter material can be present as a continuous or discontinuous film. The device can be a SiC semiconductor device such as a SiC vertical MOSFET. Methods of making the devices are also described.Type: GrantFiled: May 1, 2014Date of Patent: March 31, 2015Assignee: Monolith Semiconductor, Inc.Inventors: Kevin Matocha, Kiran Chatty, Larry Rowland, Kalidas Chatty
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Patent number: 8994119Abstract: The present invention discloses a semiconductor device, comprising substrates, a plurality of gate stack structures on the substrate, a plurality of gate spacer structures on both sides of each gate stack structure, a plurality of source and drain regions in the substrate on both sides of each gate spacer structure, the plurality of gate spacer structures comprising a plurality of first gate stack structures and a plurality of second gate stack structures, wherein each of the first gate stack structures comprises a first gate insulating layer, a first work function metal layer, a second work function metal diffusion blocking layer, and a gate filling layer; Each of the second gate stack structures comprises a second gate insulating layer, a first work function metal layer, a second work function metal layer, and a gate filling layer, characterized in that the first work function metal layer has a first stress, and the gate filling layer has a second stress.Type: GrantFiled: April 11, 2012Date of Patent: March 31, 2015Assignee: The Institute of Microelectronics Chinese Academy of SciencesInventors: Huaxiang Yin, Zuozhen Fu, Qiuxia Xu, Chao Zhao, Dapeng Chen
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Patent number: 8994120Abstract: A motor control multilayer printed wiring board includes: a multilayer printed wiring board having a plurality of laminated conductor layers; an upper-row FET connected to the conductor layers and configured to control a motor; a lower-row FET connected to the conductor layers and arranged at a location at which the lower-row FET overlaps with the upper-row FET in a laminated direction in which the conductor layers are laminated, the lower-row FET being configured to control the motor; and a heat dissipation mechanism arranged on the multilayer printed wiring board and arranged at a location at which the heat dissipation mechanism overlaps with at least one of the upper-row FET and the lower-row FET in the laminated direction.Type: GrantFiled: April 19, 2013Date of Patent: March 31, 2015Assignee: JTEKT CorporationInventor: Nobuhiro Uchida
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Patent number: 8994121Abstract: A transfer transistor includes a pair of first diffusion regions and a gate electrode layer. The pair of first diffusion regions are formed in a surface of a semiconductor substrate, and are each connected to a contact. The gate electrode layer is formed on the semiconductor substrate via a gate insulating layer and has a pair of openings each surrounding the contact.Type: GrantFiled: July 22, 2013Date of Patent: March 31, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Kutsukake, Masato Endo
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Patent number: 8994122Abstract: A memory cell region comprises a first interlayer insulating film having a bit contact hole, a contact plug formed of a first conductor film embedded in the bit contact hole, and a second conductor film which is stacked on the first interlayer insulating film to constitute a bit line connected to the contact plug. A peripheral transistor region comprises a peripheral transistor having a gate insulating film and a gate electrode stack formed on the gate insulating film. The gate electrode stack is provided with a metal gate film formed on the gate insulating film, an upper gate film stacked on the metal gate film, and a third conductor film stacked on the upper gate film. A height from a semiconductor substrate to a top face of the upper gate film is equal to or lower than a height of a top face of the first interlayer insulating film.Type: GrantFiled: March 5, 2013Date of Patent: March 31, 2015Assignee: PS4 Luxco S.A.R.L.Inventor: Hiroyuki Fujimoto
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Patent number: 8994123Abstract: Variation resistant metal-oxide-semiconductor field effect transistors (MOSFETs) are manufactured using a high-K, metal-gate ‘channel-last’ process. A cavity is formed between spacers formed over a well area having separate drain and source areas, and then a recess into the well area is formed. The active region is formed in the recess, comprising an optional narrow highly doped layer, essentially a buried epitaxial layer, over which a second un-doped or lightly doped layer is formed which is a channel epitaxial layer. The high doping beneath the low doped epitaxial layer can be achieved utilizing low-temperature epitaxial growth with single or multiple delta doping, or slab doping. A high-K dielectric stack is formed over the channel epitaxial layer, over which a metal gate is formed within the cavity boundaries. In one embodiment of the invention a cap of poly-silicon or amorphous silicon is added on top of the metal gate.Type: GrantFiled: March 20, 2012Date of Patent: March 31, 2015Assignee: Gold Standard Simulations Ltd.Inventors: Asen Asenov, Gareth Roy
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Patent number: 8994124Abstract: Disclosed is a semiconductor device that comprises a gate insulating film formed on a semiconductor substrate; a first conductive metal-containing film formed on the gate insulating film; a second conductive metal-containing film, formed on the first metal-containing film, to which aluminum is added; and a silicon film formed on the second metal-containing film.Type: GrantFiled: March 21, 2012Date of Patent: March 31, 2015Assignee: Hitachi Kokusai Electric Inc.Inventor: Arito Ogawa
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Patent number: 8994125Abstract: A semiconductor device includes, on a semiconductor substrate, a gate insulating film, a pMIS metal material or an nMIS metal material, a gate electrode material, and a gate sidewall metal layer.Type: GrantFiled: August 20, 2012Date of Patent: March 31, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Kenshi Kanegae
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Patent number: 8994126Abstract: A microelectromechanical system, including a first element and a second element, the first element having a first conductive surface facing a second conductive surface of the second element; wherein at least one of the first element and the second element is operable to constrainedly move nearer and farther from the other element; and at least one insulating separating member which is operable to mechanically maintain a separation between the first surface and the second surface, wherein a minimal distance between a first projection of a first contact area of the insulating separating member and a second projection of a second contact area of the insulating separating member is larger than a minimal separation maintained by the insulating separating member between the first element and the second element.Type: GrantFiled: March 15, 2013Date of Patent: March 31, 2015Assignee: Audio Pixels LtdInventors: Yuval Cohen, Shay Kaplan
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Patent number: 8994127Abstract: Embodiments related to semiconductor manufacturing and semiconductor devices with semiconductor structure are described and depicted.Type: GrantFiled: November 24, 2011Date of Patent: March 31, 2015Assignee: Infineon Technologies AGInventors: Thoralf Kautzsch, Boris Binder, Torsten Helm, Stefan Kolb, Marc Probst, Uwe Rudolph
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Patent number: 8994128Abstract: The micro-electromechanical semiconductor component is provided with a semiconductor substrate in which a cavity is formed, which is delimited by lateral walls and by a top and a bottom wall. In order to form a flexible connection to the region of the semiconductor substrate, the top or bottom wall is provided with trenches around the cavity, and bending webs are formed between said trenches. At least one measuring element that is sensitive to mechanical stresses is formed within at least one of said bending webs. Within the central region surrounded by the trenches, the top or bottom wall comprises a plurality of depressions reducing the mass of the central region and a plurality of stiffening braces separating the depressions.Type: GrantFiled: January 10, 2011Date of Patent: March 31, 2015Assignee: ELMOS Semiconductor AGInventor: Arnd Ten Have