Radiation Or Energy Treatment Modifying Properties Of Semiconductor Regions Of Substrate (e.g., Thermal, Corpuscular, Electromagnetic, Etc.) Patents (Class 438/308)
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Patent number: 11349005Abstract: A device includes a gate stack; a gate spacer on a sidewall of the gate stack; a source/drain region adjacent the gate stack; a silicide; and a source/drain contact electrically connected to the source/drain region through the silicide. The silicide includes a conformal first portion in the source/drain region, the conformal first portion comprising a metal and silicon; and a conformal second portion over the conformal first portion, the conformal second portion further disposed on a sidewall of the gate spacer, the conformal second portion comprising the metal, silicon, and nitrogen.Type: GrantFiled: May 22, 2020Date of Patent: May 31, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kai-Di Tzeng, Chen-Ming Lee, Fu-Kai Yang, Mei-Yun Wang
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Patent number: 11282967Abstract: A method of forming a semiconductor device includes: forming a fin protruding above a substrate, where a top portion of the fin comprises a layer stack that includes alternating layers of a first semiconductor material and a second semiconductor material; forming a dummy gate structure over the fin; forming openings in the fin on opposing sides of the dummy gate structure; forming source/drain regions in the openings; removing the dummy gate structure to expose the first semiconductor material and the second semiconductor material under the dummy gate structure; performing a first etching process to selectively remove the exposed first semiconductor material, where after the first etching process, the exposed second semiconductor material form nanostructures, where each of the nanostructures has a first shape; and after the first etching process, performing a second etching process to reshape each of the nanostructures into a second shape different from the first shape.Type: GrantFiled: May 14, 2020Date of Patent: March 22, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Cheng-Chung Chang, Hsiu-Hao Tsao, Ming-Jhe Sie, Shun-Hui Yang, Chen-Huang Huang, An Chyi Wei, Ryan Chia-Jen Chen
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Patent number: 11114157Abstract: This disclosure relates to a low-resistance monosilicide electrode and method of making the monosilicide electrode. A cell film stack is first formed on a substrate of a wafer. The top layer of this cell film stack is silicon. The cell film stack is then etched to form at least one pillar. Dielectric is deposited to fill the gaps between the pillars. The wafer is then planarized to expose the top silicon layer. The exposed top silicon layer is converted into a nickel monosilicide layer by way of a thermal solid-state reaction between nickel and the silicon layer. This nickel monosilicide layer forms the monosilicide electrode.Type: GrantFiled: April 23, 2020Date of Patent: September 7, 2021Assignee: Western Digital Technologies, Inc.Inventor: Takuya Futase
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Patent number: 10910511Abstract: There is provided a manufacturing method of a III-V compound crystal including a seed-crystal-formed substrate provision step of providing a seed-crystal-formed substrate in which a III-V compound seed crystal has been formed on a substrate, a seed crystal partial separation step of separating part of a portion in contact with the substrate in the III-V compound seed crystal from the substrate, and a crystal growth step of generating and growing the III-V compound crystal by reacting a group III element and a group V element with use of the III-V compound seed crystal as a nucleus after the seed crystal partial separation step.Type: GrantFiled: September 19, 2018Date of Patent: February 2, 2021Assignees: OSAKA UNIVERSITY, DISCO CORPORATIONInventors: Yusuke Mori, Masashi Yoshimura, Mamoru Imade, Masayuki Imanishi, Hiroshi Morikazu, Shin Tabata, Takumi Shotokuji
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Patent number: 10755948Abstract: A semiconductor wafer to be treated is placed on a susceptor made of quartz installed in a chamber, and is heated by light irradiation from halogen lamps. Before the first semiconductor wafer of a production lot is transported into the chamber, a preheating substrate is placed on the susceptor. Then, the preheating substrate is heated by light irradiation from the halogen lamps to preheat the susceptor. The susceptor is heated to a preheating temperature higher than a stable temperature when the semiconductor wafers of the production lot are continuously treated. This enables a structure in the chamber, other than the susceptor, to be preheated to a temperature during steady treatment of the semiconductor wafer in a short time, so that it is possible to eliminate dummy running for heating the structure in the chamber by applying heating treatment to a plurality of dummy wafers.Type: GrantFiled: June 6, 2018Date of Patent: August 25, 2020Assignee: SCREEN HOLDINGS CO., LTD.Inventor: Yukio Ono
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Patent number: 10644127Abstract: An electronic device including a transistor structure, and a process of forming the electronic device can include providing a workpiece including a substrate, a first layer, and a channel layer including a compound semiconductor material; and implanting a species into the workpiece such that the projected range extends at least into the channel and first layers, and the implant is performed into an area corresponding to at least a source region of the transistor structure. In an embodiment, the area corresponds to substantially all area occupied by the transistor structure. In another embodiment, the implant can form crystal defects within layers between the substrate and source, gate, and drain electrodes. The crystal defects may allow resistive coupling between the substrate and the channel structure within the transistor structure. The resistive coupling allows for better dynamic on-state resistance and potentially other electrical properties.Type: GrantFiled: July 28, 2017Date of Patent: May 5, 2020Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Peter Moens, Abhishek Banerjee
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Patent number: 10559482Abstract: In a state where nothing is held on a quartz susceptor provided in a chamber, a lower chamber window made of quartz is heated to and maintained at a stable temperature by light irradiation from a continuous lighting lamp. Then, immediately before a semiconductor wafer to be treated is transferred into the chamber, an object to be heated that absorbs infrared light is held on the susceptor, and the object to be heated is heated by light irradiation from the continuous lighting lamp. The susceptor is preliminary heated to a stable temperature by the heated object to be heated. The lower chamber window and the susceptor are each heated to the stable temperature when a semiconductor wafer to be treated first is transferred into the chamber, so that temperature histories of all semiconductor wafers constituting one lot can be made uniform. This enables dummy running, before a semiconductor wafer to be treated first is transferred, to be eliminated.Type: GrantFiled: February 27, 2018Date of Patent: February 11, 2020Assignee: SCREEN HOLDINGS CO., LTD.Inventor: Yoshio Ito
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Patent number: 10395922Abstract: A semiconductor device including a gate structure present on at least two suspended channel structures, and a composite spacer present on sidewalls of the gate structure. The composite spacer may include a cladding spacer present along a cap portion of the gate structure, and an inner spacer along the channel portion of the gate structure between adjacent channel semiconductor layers of the suspended channel structures. The inner spacer may include a crescent shape with a substantially central seam.Type: GrantFiled: December 5, 2017Date of Patent: August 27, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce B. Doris, Michael A. Guillorn, Isaac Lauer, Xin Miao
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Patent number: 10325983Abstract: Field effect transistors include a stack of nanosheets of vertically arranged channel layers. A source and drain region is positioned at respective ends of the vertically arranged channel layers. A gate stack is formed over, around, and between the vertically arranged channel layers. The transistor includes a plurality of internal spacers, each formed between the gate stack and a respective source or drain region, with at least one pair of spacers being positioned above an uppermost channel layer.Type: GrantFiled: April 21, 2017Date of Patent: June 18, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Josephine B. Chang, Michael A. Guillorn, Isaac Lauer, Xin Miao
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Patent number: 10134602Abstract: A process for smoothing a silicon-on-insulator structure comprising the exposure of a surface of the structure to an inert or reducing gas flow and to a high temperature during a heat treatment includes performing a first heat treatment step at a first temperature and under a first gas flow defined by a first flow rate, and performing a second heat treatment step at a second temperature lower than the first temperature and under a second gas flow defined by a second flow rate lower than the first flow rate.Type: GrantFiled: January 11, 2017Date of Patent: November 20, 2018Assignee: SOITECInventors: Didier Landru, Oleg Kononchuk, Carole David
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Patent number: 10134782Abstract: A thin-film transistor (TFT) array substrate including at least one TFT, the at least one TFT including a semiconductor layer including a source region and a drain region having a first doping concentration on a substrate, a channel region between the source and drain regions and having a second doping concentration, the second doping concentration being lower than the first doping concentration, and a non-doping region extending from the source and drain regions; a gate insulating layer on the semiconductor layer; a gate electrode on the gate insulating layer and at least partially overlapping the channel region; and a source electrode and a drain electrode insulated from the gate electrode and electrically connected to the source region and the drain region, respectively.Type: GrantFiled: August 6, 2015Date of Patent: November 20, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Guanghai Jin, Yongjoo Kim, Minhyeng Lee
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Patent number: 10103059Abstract: A method of manufacturing a silicon carbide semiconductor device includes forming on a front surface of a silicon carbide substrate of a first conductivity type, a silicon carbide layer of the first conductivity type of a lower concentration; selectively forming a region of a second conductivity type in a surface portion of the silicon carbide layer; selectively forming a source region of the first conductivity type in the region; forming a source electrode electrically connected to the source region; forming a gate insulating film on a surface of the region between the silicon carbide layer and the source region; forming a gate electrode on the gate insulating film; forming a drain electrode on a rear surface of the substrate; forming metal wiring comprising aluminum for the device, the metal wiring being connected to the source electrode; and performing low temperature nitrogen annealing after the metal wiring is formed.Type: GrantFiled: July 28, 2016Date of Patent: October 16, 2018Assignees: FUJI ELECTRIC CO., LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Yoshiyuki Sugahara, Takashi Tsutsumi, Youichi Makifuchi, Tsuyoshi Araoka, Kenji Fukuda, Shinsuke Harada, Mitsuo Okamoto
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Patent number: 10090184Abstract: A carrier substrate includes: a base substrate; a first coating layer on a first surface of the base substrate; and a second coating layer on a second surface of the base substrate. The thermal expansion coefficients of the first coating layer and the second coating layer are greater than a thermal expansion coefficient of the base substrate, and a thickness of the first coating layer is different from a thickness of the second coating layer.Type: GrantFiled: May 27, 2016Date of Patent: October 2, 2018Assignee: Samsung Display Co., Ltd.Inventors: Dong-Min Lee, Young-Sik Yoon, Mu-Gyeom Kim, Mu-Jin Kim, Jae-Hyun Park
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Patent number: 9911592Abstract: A semiconductor device including a gate structure present on at least two suspended channel structures, and a composite spacer present on sidewalls of the gate structure. The composite spacer may include a cladding spacer present along a cap portion of the gate structure, and an inner spacer along the channel portion of the gate structure between adjacent channel semiconductor layers of the suspended channel structures. The inner spacer may include a crescent shape with a substantially central seam.Type: GrantFiled: September 1, 2016Date of Patent: March 6, 2018Assignee: International Business Machines CorporationInventors: Bruce B. Doris, Michael A. Guillorn, Isaac Lauer, Xin Miao
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Patent number: 9812321Abstract: A semiconductor device including a gate structure present on at least two suspended channel structures, and a composite spacer present on sidewalls of the gate structure. The composite spacer may include a cladding spacer present along a cap portion of the gate structure, and an inner spacer along the channel portion of the gate structure between adjacent channel semiconductor layers of the suspended channel structures. The inner spacer may include a crescent shape with a substantially central seam.Type: GrantFiled: September 1, 2016Date of Patent: November 7, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bruce B. Doris, Michael A. Guillorn, Isaac Lauer, Xin Miao
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Patent number: 9793144Abstract: A wafer holder and temperature controlling arrangement has a metal circular wafer carrier plate, which covers a heater compartment. In the heater compartment a multitude of heater lamp tubes is arranged, which directly acts upon the circular wafer carrier plate. Latter is drivingly rotatable about the central axis. A wafer is held on the circular wafer carrier plate by means of a weight-ring residing upon the periphery of a wafer deposited on the wafer carrier plate.Type: GrantFiled: August 30, 2011Date of Patent: October 17, 2017Assignee: EVATEC AGInventors: Juergen Kielwein, Bart Scholte Von Mast, Rogier Lodder
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Patent number: 9755057Abstract: A method of fabricating a semiconductor device is disclosed. A substrate is provided. A dummy gate stack is formed on the substrate. The dummy gate stack includes a gate dielectric layer and an amorphous silicon dummy gate on the gate dielectric layer. The amorphous silicon dummy gate is transformed into a nano-crystalline silicon dummy gate. A spacer is formed on a sidewall of the nano-crystalline silicon dummy gate. A source/drain region is formed in the substrate on either side of the dummy gate stack.Type: GrantFiled: July 28, 2016Date of Patent: September 5, 2017Assignee: UNITED MICROELECTRONICS CORP.Inventors: Po-Wen Su, Shui-Yen Lu
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Patent number: 9647139Abstract: A semiconductor device including a gate structure present on at least two suspended channel structures, and a composite spacer present on sidewalls of the gate structure. The composite spacer may include a cladding spacer present along a cap portion of the gate structure, and an inner spacer along the channel portion of the gate structure between adjacent channel semiconductor layers of the suspended channel structures. The inner spacer may include a crescent shape with a substantially central seam.Type: GrantFiled: September 4, 2015Date of Patent: May 9, 2017Assignee: International Business Machines CorporationInventors: Bruce B. Doris, Michael A. Guillorn, Isaac Lauer, Xin Miao
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Patent number: 9503288Abstract: A semiconductor chip is described. The semiconductor chip includes a display controller having a driver. The display controller is configurable to select a first, a second, a third and a fourth different display interface. The driver is designed to drive respective signals for each of the first, second, third and fourth interfaces through a single output.Type: GrantFiled: December 27, 2013Date of Patent: November 22, 2016Assignee: Intel CorporationInventors: Aruna Arun Kumar, Prakash K. Radhakrishnan, Pravas Pradhan, Sunil Kumar C R, Vikas J.
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Patent number: 9437432Abstract: A method of conformally doping a device on a semiconductor workpiece is disclosed. An oxide layer is applied to all surfaces of the device. Further, the thickness of the oxide layer on each surface is proportional to the energy that ions impact that particular surface. For example, ions strike the horizontal surfaces at nearly a normal angle and penetrate more deeply into the workpiece than ions striking the vertical surfaces. After creating an oxide layer that has a variable thickness, a subsequent dopant implant is performed. While ions strike the horizontal surfaces with more energy, these ions pass through a thicker oxide layer to penetrate the workpiece. In contrast, ions strike the vertical surfaces with less energy, but traverse a much thinner oxide layer to penetrate the workpiece. The result is a conformally doped device.Type: GrantFiled: August 31, 2015Date of Patent: September 6, 2016Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Helen L. Maynard, Deven Raj Mittal, Jun Seok Lee
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Patent number: 9396951Abstract: Oxide growth of a gate dielectric layer that occurs between processes used in the fabrication of a gate dielectric structure can be reduced. The reduction in oxide growth can be achieved by maintaining the gate dielectric layer in an ambient effective to mitigate oxide growth of the gate dielectric layer between at least two sequential process steps used in the fabrication the gate dielectric structure. Maintaining the gate dielectric layer in an ambient effective to mitigate oxide growth also improves the uniformity of nitrogen implanted in the gate dielectric.Type: GrantFiled: September 18, 2015Date of Patent: July 19, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Malcolm J. Bevan, Haowen Bu, Hiroaki Niimi, Husam N. Alshareef
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Patent number: 9355965Abstract: In one embodiment, methods for making semiconductor devices are disclosed.Type: GrantFiled: July 29, 2015Date of Patent: May 31, 2016Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Jan {hacek over (S)}ik, Petr Kostelnik, Luká{hacek over (s)} Válek, Michal Lorenc, Milo{hacek over (s)} PospÃ{hacek over (s)}il, David Lysá{hacek over (c)}ek, John Michael Parsey, Jr.
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Patent number: 9355877Abstract: A carrier substrate includes: a base substrate; a first coating layer on a first surface of the base substrate; and a second coating layer on a second surface of the base substrate. The thermal expansion coefficients of the first coating layer and the second coating layer are greater than a thermal expansion coefficient of the base substrate, and a thickness of the first coating layer is different from a thickness of the second coating layer.Type: GrantFiled: March 13, 2013Date of Patent: May 31, 2016Assignee: Samsung Display Co., Ltd.Inventors: Dong-Min Lee, Young-Sik Yoon, Mu-Gyeom Kim, Mu-Jin Kim, Jae-Hyun Park
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Patent number: 9337288Abstract: A method of manufacturing a MOS-type semiconductor device capable of increasing the thickness of a gate oxide film and obtaining high gate withstanding power and reduced switching loss without increasing a gate threshold voltage Vth is provided. A p-type well region is selectively formed on one principle surface of a semiconductor substrate having an n-type low impurity concentration layer by using an oxide film as a mask. Subsequently, a resist mask is formed on the surface of the p-type well region so as to be separated from the oxide film mask, and an n+-type source region is selectively formed from the separation portion. Subsequently, the oxide film mask is removed. Then, an oxide film is formed on the surface of the p-type well region, and the oxide film is removed. Subsequently, a gate electrode coated with a gate oxide film is formed on the surface of the semiconductor substrate.Type: GrantFiled: August 8, 2014Date of Patent: May 10, 2016Assignee: FUJI ELECTRIC CO., LTD.Inventors: Shuhei Tatemichi, Takeyoshi Nishimura
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Patent number: 9331184Abstract: A silicon-oxide-nitride-oxide-silicon (SONOS) device is disclosed. The SONOS device includes a substrate; a first oxide layer on the substrate; a silicon-rich trapping layer on the first oxide layer; a nitrogen-containing layer on the silicon-rich trapping layer; a silicon-rich oxide layer on the nitrogen-containing layer; and a polysilicon layer on the silicon-rich oxide layer.Type: GrantFiled: June 11, 2013Date of Patent: May 3, 2016Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chin-Sheng Yang, Chien-Hung Chen
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Patent number: 9312270Abstract: Methods of manufacturing a three-dimensional semiconductor device are provided. The method includes: forming a thin film structure, where first and second material layers of at least 2n (n is an integer more than 2) are alternately and repeatedly stacked, on a substrate; wherein the first material layer applies a stress in a range of about 0.1×109 dyne/cm2 to about 10×109 dyne/cm2 to the substrate and the second material layer applies a stress in a range of about ?0.1×109 dyne/cm2 to about ?10×109 dyne/cm2 to the substrate.Type: GrantFiled: January 9, 2015Date of Patent: April 12, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-Tae Jang, Myoungbum Lee, Seungmok Shin, JinGyun Kim, Yeon-Sil Sohn, Seung-Yup Lee, Dae-Hun Choi
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Patent number: 9209268Abstract: The present disclosure is related to semiconductor technologies and discloses a semiconductor device and its method of making. In the present disclosure, a transistor's source and drain are led out by concurrently formed metal-semiconductor compound contact regions at the source and drain and metal-semiconductor compounds in vias formed at positions corresponding to the source and drain. Because the metal-semiconductor compound has relatively low resistivity, the resistance of the metal-semiconductor compounds in the vias can be minimized. Also, because the material used to fill the vias and the material forming the source/drain contact regions are both metal-semiconductor compound, contact resistance between the material filling the vias and the metal-semiconductor compound source/drain contact regions can be minimized.Type: GrantFiled: December 14, 2012Date of Patent: December 8, 2015Assignee: FUDAN UNIVERSITYInventors: Dongping Wu, Chenyu Wen, Wei Zhang, Shi-Li Zhang
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Patent number: 9209175Abstract: An integrated circuit structure includes a gate stack over a semiconductor substrate, and an opening extending into the semiconductor substrate, wherein the opening is adjacent to the gate stack. A first silicon germanium region is disposed in the opening, wherein the first silicon germanium region has a first germanium percentage. A second silicon germanium region is over the first silicon germanium region. The second silicon germanium region comprises a portion in the opening. The second silicon germanium region has a second germanium percentage greater than the first germanium percentage. A silicon cap substantially free from germanium is over the second silicon germanium region.Type: GrantFiled: July 17, 2013Date of Patent: December 8, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsueh-Chang Sung, Tsz-Mei Kwok, Kun-Mu Li, Tze-Liang Lee, Chii-Horng Li
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Publication number: 20150129974Abstract: A semiconductor device includes a first channel, a second channel, a first strained gate electrode including a first lattice-mismatched layer for applying a first stress to the first channel, and a second strained gate electrode including a second lattice-mismatched layer for applying a second stress to the second channel.Type: ApplicationFiled: March 17, 2014Publication date: May 14, 2015Applicant: SK HYNIX INCInventor: Yun-Hyuck JI
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Patent number: 9029226Abstract: The embodiments of mechanisms for doping lightly doped drain (LDD) regions by driving dopants from highly doped source and drain regions by annealing for finFET devices are provided. The mechanisms overcome the limitation by shadowing effects of ion implantation for advanced finFET devices. The highly doped source and drain regions are formed by epitaxial growing one or more doped silicon-containing materials from recesses formed in the fins. The dopants are then driven into the LDD regions by advanced annealing process, which can achieve targeted dopant levels and profiles in the LDD regions.Type: GrantFiled: June 7, 2013Date of Patent: May 12, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun Hsiung Tsai, Tsan-Chun Wang, Su-Hao Liu
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Patent number: 9023741Abstract: A method for surface treatment is disclosed which relates to the technical field of producing thin-film devices by printing and solves the problem that the treatment of a substrate surface in the prior art can hardly meet the requirement for printing. The method for surface treatment includes a step of subjecting a surface of a base plate having at least two kinds of substrate patterns formed thereon to a surface treatment for forming a self-assembled monomolecular layer for at least once and a surface treatment by ultraviolet-ozone cleaning, so as to make the difference between the surface energies of the substrate patterns larger or smaller. The method for surface treatment of the invention is suitable for the surface treatment of the substrate surface during producing thin-film devices by printing.Type: GrantFiled: November 19, 2013Date of Patent: May 5, 2015Assignee: BOE Technology Group Co., Ltd.Inventors: Xianghua Wang, Xianfeng Xiong, Longzhen Qiu, Ze Liu
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Patent number: 9023706Abstract: The present invention relates to a transistor and the method for forming the same. The transistor of the present invention comprises a semiconductor substrate; a gate dielectric layer formed on the semiconductor substrate; a gate formed on the gate dielectric layer; a channel region under the gate dielectric layer; and a source region and a drain region located in the semiconductor substrate and on respective sides of the channel region, wherein at least one of the source and drain regions comprises a set of dislocations that are adjacent to the channel region and arranged in the direction perpendicular to a top surface of the semiconductor substrate, and the set of dislocations comprises at least two dislocations.Type: GrantFiled: September 10, 2013Date of Patent: May 5, 2015Assignee: Institute of Microelectronics, Chinese Academy of SciencesInventors: Haizhou Yin, Huilong Zhu, Zhijiong Luo
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Publication number: 20150118817Abstract: A method for fabricating a semiconductor device is provided, which includes forming a screen layer on a substrate, the screen layer including a first portion doped with a first type impurity, forming a first undoped semiconductor layer on the screen layer, forming a gate structure on the first semiconductor layer, forming a first amorphous region on both sides of the gate structure in the first semiconductor layer, and re-crystallizing the first amorphous region through performing a first heat treatment of the first amorphous region.Type: ApplicationFiled: May 23, 2014Publication date: April 30, 2015Inventors: Kiyotaka IMAI, Young-Gwon KIM, Shigenobu MAEDA, Soon-Chul HWANG
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Patent number: 8975145Abstract: Embodiments of the present invention relate to a thin film transistor and a manufacturing method of a display panel, and include forming a gate line including a gate electrode on a substrate, forming a gate insulating layer on the gate electrode, forming an intrinsic semiconductor on the gate insulating layer, forming an extrinsic semiconductor on the intrinsic semiconductor, forming a data line including a source electrode and a drain electrode on the extrinsic semiconductor, and plasma-treating a portion of the extrinsic semiconductor between the source electrode and the drain electrode to form a protection member and ohmic contacts on respective sides of the protection member. Accordingly, the process for etching the extrinsic semiconductor and forming an inorganic insulating layer for protecting the intrinsic semiconductor may be omitted such that the manufacturing process of the display panel may be simplified, manufacturing cost may be reduced, and productivity may be improved.Type: GrantFiled: January 30, 2014Date of Patent: March 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Yu-Gwang Jeong, Young-Wook Lee, Sang-Gab Kim, Woo-Geun Lee, Min-Seok Oh, Jang-Soo Kim, Kap-Soo Yoon, Shin-Il Choi, Hong-Kee Chin, Seung-Ha Choi, Seung-Hwan Shim, Sung-Hoon Yang, Ki-Hun Jeong
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Patent number: 8957357Abstract: A solid-state imaging device includes plural photodiodes which are formed in a photodiode area of a unit pixel with no element separating area interposed therebetween and in which impurity concentrations of pn junction areas are different from each other.Type: GrantFiled: March 22, 2010Date of Patent: February 17, 2015Assignee: Sony CorporationInventor: Kazuichiro Itonaga
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Patent number: 8956978Abstract: Nanotube devices and approaches therefore involve the formation and/or implementation of substantially semiconducting single-walled nanotubes. According to an example embodiment of the present invention, substantially semiconducting single-walled nanotubes couple circuit nodes in an electrical device. In some applications, semiconducting and metallic nanotubes having a diameter in a threshold range are exposed to an etch gas that selectively etches the metallic nanotubes, leaving substantially semiconducting nanotubes coupling the circuit nodes.Type: GrantFiled: July 30, 2007Date of Patent: February 17, 2015Assignee: The Board of Trustees of the Leland Stanford Junior UniverityInventors: Hongjie Dai, Guangyu Zhang, Pengfei Qi
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Patent number: 8956944Abstract: In the transistor including an oxide semiconductor film, which includes a film for capturing hydrogen from the oxide semiconductor film (a hydrogen capture film) and a film for diffusing hydrogen (a hydrogen permeable film), hydrogen is transferred from the oxide semiconductor film to the hydrogen capture film through the hydrogen permeable film by heat treatment. Specifically, a base film or a protective film of the transistor including an oxide semiconductor film has a stacked-layer structure of the hydrogen capture film and the hydrogen permeable film. At this time, the hydrogen permeable film is formed on a side which is in contact with the oxide semiconductor film. After that, hydrogen released from the oxide semiconductor film is transferred to the hydrogen capture film through the hydrogen permeable film by the heat treatment.Type: GrantFiled: March 16, 2012Date of Patent: February 17, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yuki Imoto, Tetsunori Maruyama, Yuta Endo
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Patent number: 8951878Abstract: It is an object of the present invention to provide a method for manufacturing an SOI substrate having an SOI layer that can be used in practical applications with high yield even when a flexible substrate such as a glass substrate or a plastic substrate is used. Further, it is another object of the present invention to provide a method for manufacturing a thin semiconductor device using such an SOI substrate with high yield. When a single-crystal semiconductor substrate is bonded to a flexible substrate having an insulating surface and the single-crystal semiconductor substrate is separated to manufacture an SOI substrate, one or both of bonding surfaces are activated, and then the flexible substrate having an insulating surface and the single-crystal semiconductor substrate are attached to each other.Type: GrantFiled: December 5, 2013Date of Patent: February 10, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuhiro Jinbo, Hironobu Shoji, Hideto Ohnuma, Shunpei Yamazaki
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Publication number: 20150028351Abstract: A semiconductor device structure according to some embodiments includes a silicon carbide substrate having a first conductivity type, a silicon carbide drift layer having the first conductivity type on the silicon carbide substrate and having an upper surface opposite the silicon carbide substrate, and a buried junction structure in the silicon carbide drift layer. The buried junction structure has a second conductivity type opposite the first conductivity type and has a junction depth that is greater than about one micron.Type: ApplicationFiled: June 5, 2014Publication date: January 29, 2015Inventors: Edward Robert Van Brunt, Alexander V. Suvorov, Vipindas Pala, Lin Cheng
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Patent number: 8937005Abstract: A method for fabricating field effect transistors using carbon doped silicon layers to substantially reduce the diffusion of a doped screen layer formed below a substantially undoped channel layer includes forming an in-situ epitaxial carbon doped silicon substrate that is doped to form the screen layer in the carbon doped silicon substrate and forming the substantially undoped silicon layer above the carbon doped silicon substrate. The method may include implanting carbon below the screen layer and forming a thin layer of in-situ epitaxial carbon doped silicon above the screen layer. The screen layer may be formed either in a silicon substrate layer or the carbon doped silicon substrate.Type: GrantFiled: October 4, 2013Date of Patent: January 20, 2015Assignee: SuVolta, Inc.Inventors: Lance S. Scudder, Pushkar Ranade, Charles Stager, Urupattur C. Sridharan, Dalong Zhao
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Publication number: 20150001597Abstract: A method of manufacturing a substantially planar electronic device is disclosed. The method employs a resist having three different thicknesses used for defining different structures in a single masking step. Exemplary structures are substantially planar transistors having side-gates and diodes.Type: ApplicationFiled: February 21, 2013Publication date: January 1, 2015Applicant: PRAGMATIC PRINTING LIMITEDInventors: Antony Colin Fryer, Richard David Price
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Patent number: 8921178Abstract: Improved formation of replacement metal gate transistors is obtained by utilizing a silicon to metal substitution reaction. After removing the dummy gate, a gate dielectric and work function metal are deposited. The work function metal is deposited to a different thickness for the P-channel transistors than for the N-channel transistors. A sacrificial polysilicon gate is then formed, which is caused to undergo substitution with a metal such as aluminum.Type: GrantFiled: April 11, 2013Date of Patent: December 30, 2014Assignee: Renesas Electronics CorporationInventor: Kenzo Manabe
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Patent number: 8921193Abstract: The preferred embodiment of the present invention provides a novel method of forming MOS devices using hydrogen annealing. The method includes providing a semiconductor substrate including a first region and a second region, forming at least a portion of a first MOS device covering at least a portion of the first active region, performing a hydrogen annealing in an ambient containing substantially pure hydrogen on the semiconductor substrate. The hydrogen annealing is performed after the step of the at least a portion of the first MOS device is formed, and preferably after a pre-oxidation cleaning. The method further includes forming a second MOS device in the second active region after hydrogen annealing. The hydrogen annealing causes the surface of the second active region to be substantially rounded, while the surface of the first active region is substantially flat.Type: GrantFiled: January 17, 2006Date of Patent: December 30, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jocelyn Wei-Yee Teo, Chi-Chun Chen, Shih-Chang Chen
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Patent number: 8921190Abstract: A semiconductor structure and method of manufacture and, more particularly, a field effect transistor that has a body contact and method of manufacturing the same is provided. The structure includes a device having a raised source region of a first conductivity type and an active region below the raised source region extending to a body of the device. The active region has a second conductivity type different than the first conductivity type. A contact region is in electric contact with the active region. The method includes forming a raised source region over an active region of a device and forming a contact region of a same conductivity type as the active region, wherein the active region forms a contact body between the contact region and a body of the device.Type: GrantFiled: April 8, 2008Date of Patent: December 30, 2014Assignee: International Business Machines CorporationInventors: Alan B. Botula, Alvin J. Joseph, Stephen E. Luce, John J. Pekarik, Yun Shi
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Patent number: 8912104Abstract: An integrated circuit may include a substrate in which transistors are formed. The transistors may be associated with blocks of circuitry. Some of the blocks of circuitry may be configured to reduce leakage current. A selected subset of the blocks of circuitry may be selectively heated to reduce the channel length of their transistors through dopant diffusion and thereby strengthen those blocks of circuitry relative to the other blocks of circuitry. Selective heating may be implemented by coating the blocks of circuitry on the integrated circuit with a patterned layer of material such as a patterned anti-reflection coating formed of amorphous carbon or a reflective coating. During application of infrared light, the coated and uncoated areas will rise to different temperatures, selectively strengthening desired blocks of circuitry on the integrated circuit.Type: GrantFiled: March 14, 2011Date of Patent: December 16, 2014Assignee: Altera CorporationInventors: Deepa Ratakonda, Christopher J. Pass, Che Ta Hsu, Fangyun Richter, Wilson Wong
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Publication number: 20140363944Abstract: A method for cleaning residues from a semiconductor substrate during a nickel platinum silicidation process is disclosed, including a multi-step residue cleaning, including exposing the substrate to an aqua regia solution, followed by an exposure to a solution having hydrochloric acid and hydrogen peroxide. The SC2 solution can further react with remaining platinum residues, rendering it more soluble in an aqueous solution and thereby dissolving it from the surface of the substrate.Type: ApplicationFiled: July 17, 2014Publication date: December 11, 2014Inventors: Anh Duong, Clemens Fitz, Olov Karlsson
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Patent number: 8906742Abstract: Systems and methods are disclosed for performing laser annealing in a manner that reduces or minimizes wafer surface temperature variations during the laser annealing process. The systems and methods include annealing the wafer surface with first and second laser beams that represent preheat and anneal laser beams having respective first and second intensities. The preheat laser beam brings the wafer surface temperate close to the annealing temperature and the anneal laser beam brings the wafer surface temperature up to the annealing temperature. The anneal laser beam can have a different wavelength, or the same wavelength but different orientation relative to the wafer surface. Reflectivity maps of the wafer surface at the preheat and anneal wavelengths are measured and used to select the first and second intensities that ensure good anneal temperature uniformity as a function of wafer position. The first and second intensities can also be selected to minimize edge damage or slip generation.Type: GrantFiled: August 29, 2013Date of Patent: December 9, 2014Assignee: Ultratech, Inc.Inventors: Xiaohua Shen, Yun Wang, Xiaoru Wang
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Patent number: 8906704Abstract: A lower electrode film is formed above a substrate. A ferroelectric film is formed above the lower electrode film. An amorphous intermediate film of a perovskite-type conductive oxide is formed above the ferroelectric film. A first upper electrode film comprising oxide of at least one metal selected from a group of Pt, Pd, Rh, Ir, Ru, and Os is formed on the intermediate film. The intermediate film is crystallized by carrying out a first heat treatment in an atmosphere containing an oxidizing gas after the formation of the first upper electrode film. After the first heat treatment, a second upper electrode film comprising oxide of at least one metal selected from a group of Pt, Pd, Rh, Ir, Ru, and Os is formed on the first upper electrode film, at a temperature lower than the growth temperature for the first upper electrode film.Type: GrantFiled: May 18, 2011Date of Patent: December 9, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Wensheng Wang
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Patent number: 8900952Abstract: A method of forming a semiconductor device that includes forming a high-k gate dielectric layer on a semiconductor substrate, wherein an oxide containing interfacial layer can be present between the high-k gate dielectric layer and the semiconductor substrate. A scavenging metal stack may be formed on the high-k gate dielectric layer. An annealing process may be applied to the scavenging metal stack during which the scavenging metal stack removes oxide material from the oxide containing interfacial layer, wherein the oxide containing interfacial layer is thinned by removing of the oxide material. A gate conductor layer is formed on the high-k gate dielectric layer. The gate conductor layer and the high-k gate dielectric layer are then patterned to provide a gate structure. A source region and a drain region are then formed on opposing sides of the gate structure.Type: GrantFiled: March 11, 2013Date of Patent: December 2, 2014Assignee: International Business Machines CorporationInventors: Martin M. Frank, Isaac Lauer, Jeffrey W. Sleight
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Patent number: 8877619Abstract: Structures and processes are provided that can be used for effectively integrating different transistor designs across a process platform. In particular, a bifurcated process is provided in which dopants and other processes for forming some transistor types may be performed prior to STI or other device isolation processes, and other devices may be formed thereafter. Thus, doping and other steps and their sequence with respect to the STI process can be selected to be STI-first or STI-last, depending on the device type to be manufactured, the range of device types that are manufactured on the same wafer or die, or the range of device types that are planned to be manufactured using the same or similar mask sets.Type: GrantFiled: January 23, 2013Date of Patent: November 4, 2014Assignee: SuVolta, Inc.Inventors: Scott E. Thompson, Lucian Shifren, Pushkar Ranade, Lance Scudder, Dalong Zhao, Teymur Bakhisher, Sameer Pradhan