Characterized By The Angle Between The Ion Beam And The Crystal Planes Or The Main Crystal Surface (epo) Patents (Class 257/E21.345)
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Patent number: 12166069Abstract: A semiconductor device includes substrate, a first gate structure, a second gate structure, and an epitaxy layer. The first gate structure and the second gate structure are over the substrate, in which the first gate structure and the second gate structure each comprises a shielding electrode, a gate electrode over the shielding electrode, and a first gate dielectric layer vertically separating the shielding electrode from the gate electrode. The epitaxy layer is over the substrate and cups an underside of the first gate structure and the second gate structure, in which the epitaxy layer comprises a doped region laterally between the first gate dielectric layer of the first gate structure and the first gate dielectric layer of the second gate structure, a dopant concentration of the doped region being non-uniform along a lateral direction.Type: GrantFiled: July 12, 2023Date of Patent: December 10, 2024Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., TSMC CHINA COMAPNY LIMITEDInventor: Zheng-Long Chen
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Patent number: 12125866Abstract: A method for making an isolation region of a CIS device includes: forming a block layer on a substrate, below the block layer being an oxide layer, below the oxide layer being a silicon nitride layer, and a shallow trench isolation being formed in the substrate; forming a hard mask layer on the surface of the block layer, the material of the hard mask layer is oxide; performing a photolithography process and an etching process to form an isolation region pattern in the hard mask layer; performing an ion implantation process to form an isolation region in the substrate corresponding to the isolation region pattern.Type: GrantFiled: October 7, 2021Date of Patent: October 22, 2024Assignee: HUA HONG SEMICONDUCTOR (WUXI) LIMITEDInventors: Yuanyuan Qui, Zhenqiang Guo, Peng Huang, Xiao Fan
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Patent number: 12074196Abstract: Embodiments of processing a substrate are provided herein. In some embodiments, a method of processing a substrate includes: depositing, via a first epitaxial growth process, an n-doped silicon material onto a substrate to form an n-doped layer while adjusting a ratio of dopant precursor to silicon precursor so that a dopant concentration of the n-doped layer increases from a bottom of the n-doped layer to a top of the n-doped layer; etching the n-doped layer to form a plurality of trenches having sidewalls that are tapered and a plurality of n-doped pillars therebetween; and filling the plurality of trenches with a p-doped material via a second epitaxial growth process to form a plurality of p-doped pillars.Type: GrantFiled: July 8, 2021Date of Patent: August 27, 2024Assignee: APPLIED MATERIALS, INC.Inventors: Ashish Pal, Yi Zheng, El Mehdi Bazizi
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Patent number: 12051743Abstract: There is provided a semiconductor device, including: a semiconductor chip including a main surface; a gate trench formed on the main surface; a first insulating film configured to cover an upper wall surface of the gate trench; a second insulating film configured to cover a lower wall surface of the gate trench; a field trench formed on the main surface so as to be spaced apart from the gate trench, and including a facing wall at a side of the gate trench and a non-facing wall at an opposite side of the facing wall; a third insulating film configured to cover an upper wall surface of the field trench at a side of the facing wall; and a fourth insulating film configured to cover a lower wall surface of the field trench at the side of the facing wall and the non-facing wall.Type: GrantFiled: February 1, 2021Date of Patent: July 30, 2024Assignee: ROHM CO., LTD.Inventor: Masaki Nagata
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Patent number: 12035543Abstract: Methods and apparatuses for a cross-point memory array and related fabrication techniques are described. The fabrication techniques described herein may facilitate concurrently building two or more decks of memory cells disposed in a cross-point architecture. Each deck of memory cells may include a plurality of first access lines (e.g., word lines), a plurality of second access lines (e.g., bit lines), and a memory component at each topological intersection of a first access line and a second access line. The fabrication technique may use a pattern of vias formed at a top layer of a composite stack, which may facilitate building a 3D memory array within the composite stack while using a reduced number of processing steps. The fabrication techniques may also be suitable for forming a socket region where the 3D memory array may be coupled with other components of a memory device.Type: GrantFiled: October 6, 2020Date of Patent: July 9, 2024Assignee: Micron Technology, Inc.Inventors: Hernan A. Castro, Stephen H. Tang, Stephen W. Russell
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Patent number: 12009423Abstract: An integrated circuit is fabricated by forming transistors having gates of orthogonal orientations and implanting, at two first rotations, a first pocket implant using a first dopant type with a masking pattern on a substrate surface layer, the two first rotations respectively forming two first pocket implantation angles and two first pocket implantation beam orientations, and implanting, at two second rotations, a retrograde gate-edge diode leakage (GDL) reduction pocket implant using a second dopant type with the masking pattern on the substrate surface layer, the two second rotations respectively forming two GDL-reduction implantation angles and two GDL-reduction implantation beam orientations.Type: GrantFiled: December 28, 2020Date of Patent: June 11, 2024Assignee: Texas Instruments IncorporatedInventors: Brian Edward Hornung, Mahalingam Nandakumar
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Patent number: 12003322Abstract: This application describes a data transmission method and a communication apparatus. An example data transmission method includes: performing network coding based on a first data segment, to obtain a first network coded data segment; generating first cyclic redundancy check CRC information and a first data unit based on the first network coded data segment, where the first data unit includes a network coding parameter and the first CRC information that correspond to the first network coded data segment, and the first CRC information is for checking the first network coded data segment; and outputting the first data unit. According to of the example method and communication apparatus of this application, a waste of spectrum resources may be avoided, and spectrum efficiency may be improved.Type: GrantFiled: September 7, 2022Date of Patent: June 4, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Huiying Zhu, Pengpeng Dong, Zhiyuan Tan
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Patent number: 11961909Abstract: Semiconductor device includes a well region formed in an active region of a semiconductor substrate, a gate electrode formed on the well region via a gate dielectric film, and a source region and a drain region formed in the well region. At the vicinity of both end portions of the active region in the first direction, a first region and a second region having the same conductivity type as the well region and having impurity concentration higher than that of the well region are formed in the well region. The first region and the second region are spaced from each other in a second direction perpendicular to the first direction, and at least a portion of each of them is located under the gate electrode. The first region and the second region are not formed at the center portion of the active region in the first direction.Type: GrantFiled: March 3, 2022Date of Patent: April 16, 2024Assignee: RENESAS ELECTRONICS CORPORATIONInventor: Hideki Sugiyama
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Patent number: 11923444Abstract: There is provided a semiconductor device including a drift region of a first conductivity type, a first semiconductor region of the first conductivity type provided above the drift region and having a doping concentration higher than the drift region, a second semiconductor region of a second conductivity type provided between the first semiconductor region and the drift region, and a plurality of trench portions arranged in a first direction and having an extending portion that extends in a second direction perpendicular to the first direction. At least one trench portion of the plurality of trench portions has a first tapered portion at an upper side than a depth position of a lower surface of the second semiconductor region. The width of the first tapered portion in the first direction becomes smaller from a lower side of the first tapered portion toward an upper side of the first tapered portion.Type: GrantFiled: January 5, 2023Date of Patent: March 5, 2024Assignee: FUJI ELECTRIC CO., LTD.Inventor: Tatsuya Naito
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Patent number: 11887853Abstract: A method of manufacturing a semiconductor device comprises: forming a doped region having a first conductive type in a semiconductor substrate, and forming a gate structure on the doped region; implanting doping ions having a second conductive type to a second region of the doped region along a vertical direction, so as to form a source/drain region having the second conductive type; implanting doping ions having the first conductive type to a first region of the doped region along a tilt direction inclining toward the gate structure, and then annealing, so as to form a Halo region extending to the gate structure from the source/drain region, wherein the first region is adjacent to the gate structure and the second region is located on the side of the first region facing away from the gate structure, and the first region and the second region have no overlap region.Type: GrantFiled: August 27, 2021Date of Patent: January 30, 2024Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.Inventor: Kejun Mu
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Patent number: 11883731Abstract: A martial arts training device with scoring system, device comprising a padded device designed to be struck by a participant; and a scoring system attached to padded device, scoring system comprising: an impedance-based impact sensing mechanism that detects a source of impact comprising at least one impedance changing mechanism that changes impedance as each of conductive material is moved towards and away from impedance changing mechanism as the first participant delivers the impact; an impact sensing mechanism for which mechanically detects the force of impact creating electrical charges; at least one impedance-based impact measuring scoring system determining the source of the impact that occurred based on a change in impedance electromagnetically in said impedance changing mechanism; and at least one impedance changing rate determination engine configured to determine a rate at which the impedance changes in impedance changing mechanism; and at least one impact force determination engine configured to detType: GrantFiled: May 6, 2022Date of Patent: January 30, 2024Inventors: Tyler Delarosa, Jin Song
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Patent number: 11888047Abstract: Methods and systems for power semiconductor devices integrating multiple quasi-vertical transistors on a single chip. Multiple power transistors (or active regions) are paralleled, but one transistor has a lower threshold voltage. This reduces the voltage drop when the transistor is forward-biased. In an alternative embodiment, the power device with lower threshold voltage is simply connected as a depletion diode, to thereby shunt the body diodes of the active transistors, without affecting turn-on and ON-state behavior.Type: GrantFiled: July 20, 2020Date of Patent: January 30, 2024Assignee: MaxPower Semiconductor, Inc.Inventors: Mohamed N. Darwish, Jun Zeng, Richard A. Blanchard
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Patent number: 11854688Abstract: Methods for performing a pre-clean process to remove an oxide in semiconductor devices and semiconductor devices formed by the same are disclosed. In an embodiment, a method includes forming a shallow trench isolation region over a semiconductor substrate; forming a gate stack over the shallow trench isolation region; etching the shallow trench isolation region adjacent the gate stack using an anisotropic etching process; and after etching the shallow trench isolation region with the anisotropic etching process, etching the shallow trench isolation region with an isotropic etching process, process gases for the isotropic etching process including hydrogen fluoride (HF) and ammonia (NH3).Type: GrantFiled: May 29, 2020Date of Patent: December 26, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Feng-Ching Chu, Wei-Yang Lee, Feng-Cheng Yang, Yen-Ming Chen
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Patent number: 11810973Abstract: A semiconductor structure and a method for forming a semiconductor structure are provided. The semiconductor structure includes a substrate; a doped region within the substrate; a pair of source/drain regions extending along a first direction on opposite sides of the doped region; a gate electrode disposed in the doped region, wherein the gate electrode has a plurality of first segments extending in parallel along the first direction; and a protection structure over the substrate and at least partially overlaps the gate electrode.Type: GrantFiled: May 14, 2021Date of Patent: November 7, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Yi-Huan Chen, Chien-Chih Chou, Szu-Hsien Liu, Kong-Beng Thei
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Patent number: 11725278Abstract: A system and method for plasma enhanced deposition processes. An exemplary semiconductor manufacturing system includes a susceptor configured to hold a semiconductor wafer and a sector disposed above the susceptor. The sector includes a first plate and an overlying second plate, operable to form a plasma there between. The first plate includes a plurality of holes extending through the first plate, which vary in at least one of diameter and density from a first region of the first plate to a second region of the first plate.Type: GrantFiled: December 20, 2019Date of Patent: August 15, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Kun-Mo Lin, Yi-Hung Lin, Jr-Hung Li, Tze-Liang Lee, Ting-Gang Chen, Chung-Ting Ko
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Patent number: 11728212Abstract: A method includes depositing a dielectric cap over a gate structure. A source/drain contact is formed over a source/drain region after forming the dielectric cap. A top of the dielectric cap is doped to form a doped region in the dielectric cap. After doping the top of the dielectric cap, a etch stop layer and an interlayer dielectric (ILD) layer are deposited over the dielectric cap. A via opening is formed to extend though the ILD layer and the etch stop layer to expose the source/drain contact. A source/drain via is filled in the via opening.Type: GrantFiled: March 24, 2021Date of Patent: August 15, 2023Assignee: TAIWAN SEMICONDCUTOR MANUFACTURING COMPANY, LTD.Inventors: Te-Chih Hsiung, Jyun-De Wu, Peng Wang, Huan-Just Lin
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Patent number: 11699752Abstract: A semiconductor device includes a first semiconductor region having a first conductivity type and a second semiconductor region having a second conductivity type, a source region and a body contact region in the second semiconductor region. The semiconductor device also includes a channel region, in the second semiconductor region, located laterally between the source region and the first semiconductor region, a gate dielectric layer overlying both the channel region and a portion of the first semiconductor region, and a gate electrode overlying the gate dielectric layer. The semiconductor device further includes a conformal conductive layer covering an upper surface of the body contact region and a side surface of the source region.Type: GrantFiled: February 2, 2021Date of Patent: July 11, 2023Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC CHINA COMPANY, LIMITEDInventor: Zheng Long Chen
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Patent number: 11601128Abstract: Systems and methods related to low power cryo-CMOS circuits with non-volatile threshold voltage offset compensation are provided. A system includes a plurality of devices configured to operate in a cryogenic environment, where a first distribution of a threshold voltage associated with the plurality of devices has a first value indicative of a measure of spread of the threshold voltage. The system further includes control logic, coupled to each of the plurality of devices, configured to modify a threshold voltage associated with each of the plurality of devices such that the first distribution is changed to a second distribution having a second value of the measure of spread of the threshold voltage representing a lower variation among threshold voltages of the plurality of devices.Type: GrantFiled: May 13, 2022Date of Patent: March 7, 2023Assignee: Microsoft Technology Licensing, LLCInventor: David J. Reilly
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Patent number: 11569384Abstract: Methods and structures for forming strained-channel finFETs are described. Fin structures for finFETs may be formed in two epitaxial layers that are grown over a bulk substrate. A first thin epitaxial layer may be cut and used to impart strain to an adjacent channel region of the finFET via elastic relaxation. The structures exhibit a preferred design range for increasing induced strain and uniformity of the strain over the fin height.Type: GrantFiled: October 19, 2020Date of Patent: January 31, 2023Assignee: STMICROELECTRONICS, INC.Inventors: Nicolas Loubet, Pierre Morin
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Patent number: 11569093Abstract: A method for making a MOSFET includes forming a gate oxide layer on a substrate; depositing and forming a polysilicon layer on the gate oxide layer; removing the polysilicon layer and the gate oxide layer in a target area by means of dry etching. The remaining gate oxide layer forms a gate oxide of the MOSFET. The remaining polysilicon layer forms a gate of the MOSFET. The method further includes performing LDD implantation on the substrate at both sides of the gate, to form a first LDD area and a second LDD area respectively; and performing SD implantation to form a source and a drain in the substrate at both sides of the gate respectively. Before one of the steps after the depositing and forming a polysilicon layer on the gate oxide layer, fluorine ion implantation is performed.Type: GrantFiled: April 14, 2021Date of Patent: January 31, 2023Assignee: Hua Hong Semiconductor (Wuxi) LimitedInventors: Mingxu Fang, Yu Chen, Hualun Chen
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Patent number: 11569354Abstract: A method of manufacturing a recessed access device includes the following operations. A first trench is formed in a substrate. A first gate oxide layer is formed on an inner surface of the first trench. A sacrificial layer is formed in a bottom of the first trench, in which a portion of the first gate oxide layer above the sacrificial layer is exposed from the first trench. The portion of the first gate oxide layer is removed to expose a sidewall of the first trench. The sidewall of the first trench is oxidized to form a second gate oxide layer within the substrate, in which the second gate oxide layer is in contact with the first gate oxide layer. The sacrificial layer is removed to form a second trench.Type: GrantFiled: April 21, 2022Date of Patent: January 31, 2023Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Kung-Ming Fan
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Patent number: 11469313Abstract: A self-aligned p+ contact MOSFET device is provided. A process to manufacture the device includes forming oxide plugs on top of gate trenches, conducting uniform silicon mesa etch back, and forming oxide spacers to form contact trenches.Type: GrantFiled: January 19, 2021Date of Patent: October 11, 2022Assignee: IPOWER SEMICONDUCTORInventors: Hamza Yilmaz, Jong Oh Kim
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Patent number: 11462625Abstract: The semiconductor device includes a well region disposed in a surface layer of a semiconductor substrate, a source region and a drain region arranged separated from each other in a surface layer of the well region, a channel region disposed between the source region and the drain region, and a gate electrode disposed on the channel region via a gate insulating film containing fluorine, in which concentration of fluorine existing in a first interface, the first interface being an interface of the gate insulating film with the gate electrode, and concentration of fluorine existing in a second interface, the second interface being an interface of the gate insulating film with the channel region, are higher than concentration of fluorine existing in a middle region in the depth direction of the gate insulating film, and fluorine concentration in the first interface is higher than fluorine concentration in the second interface.Type: GrantFiled: February 10, 2021Date of Patent: October 4, 2022Assignee: Asahi Kasel Microdevices CorporationInventor: Shuntaro Fujii
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Patent number: 11450670Abstract: The invention provides a semiconductor memory cell, the semiconductor memory cell includes a substrate having a first conductivity type, a doped region in the substrate, wherein the doped region has a second conductivity type, and the first conductivity type is complementary to the second conductivity type, a capacitor insulating layer and an upper electrode on the doped region, a transistor on the substrate, and a shallow trench isolation disposed between the transistor and the capacitor insulating layer, and the shallow trench isolation is disposed in the doped region.Type: GrantFiled: April 14, 2021Date of Patent: September 20, 2022Assignee: UNITED MICROELECTRONICS CORP.Inventors: Kuo-Hsing Lee, Kun-Hsien Lee, Sheng-Yuan Hsueh, Chang-Chien Wong, Ching-Hsiang Tseng, Tsung-Hsun Wu, Chi-Horn Pai, Shih-Chieh Hsu
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Patent number: 11380589Abstract: An array of semiconductor fins is formed on a top surface of a substrate. A dielectric material liner is formed on the surfaces of the array of semiconductor fins. A photoresist layer is applied and patterned such that sidewalls of an opening in the photoresist layer are parallel to the lengthwise direction of the semiconductor fins, and are asymmetrically laterally offset from a lengthwise direction passing through the center of mass of a semiconductor fin to be subsequently removed. An angled ion implantation is performed to convert a top portion of dielectric material liner into a compound material portion. The compound material portion is removed selective to the remaining dielectric material liner, and the physically exposed semiconductor fin can be removed by an etch or converted into a dielectric material portion by a conversion process. The dielectric material liner can be removed after removal of the semiconductor fin.Type: GrantFiled: October 24, 2019Date of Patent: July 5, 2022Assignee: TESSERA LLCInventors: Veeraraghavan S. Basker, Kangguo Cheng, Ali Khakifirooz
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Patent number: 11362665Abstract: Systems and methods related to low power cryo-CMOS circuits with non-volatile threshold voltage offset compensation are provided. A system includes a plurality of devices configured to operate in a cryogenic environment, where a first distribution of a threshold voltage associated with the plurality of devices has a first value indicative of a measure of spread of the threshold voltage. The system further includes control logic, coupled to each of the plurality of devices, configured to modify a threshold voltage associated with each of the plurality of devices such that the first distribution is changed to a second distribution having a second value of the measure of spread of the threshold voltage representing a lower variation among threshold voltages of the plurality of devices.Type: GrantFiled: September 8, 2020Date of Patent: June 14, 2022Assignee: Microsoft Technology Licensing, LLCInventor: David J. Reilly
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Patent number: 11226446Abstract: A surface-relief structure and techniques for fabricating the surface-relief structure are disclosed. The surface-relief structure includes a substrate, a plurality of ridges on the substrate, and a plurality of grooves each between two adjacent ridges. The plurality of ridges are slanted with respect to the substrate, and include a material having a refractive index at least 2.3. Regions of the substrate at bottoms of the plurality of grooves include at least one of hydrogen or nitrogen at a concentration of at least 1010/cm3.Type: GrantFiled: May 6, 2020Date of Patent: January 18, 2022Assignee: FACEBOOK TECHNOLOGIES, LLCInventor: Nihar Ranjan Mohanty
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Patent number: 11107688Abstract: A semiconductor device manufacturing method is presented. The manufacturing method includes: providing a semiconductor structure, wherein the semiconductor structure comprises a semiconductor substrate, a first doped region in the semiconductor substrate, and a first gate structure on the first doped region; forming a source and a drain in the first doped region on two opposing sides of the first gate structure; and implanting dopants to the source and the drain by an ion implantation process, wherein the implantation direction and an upper surface of the first doped region form an acute angle, the dopants implanted to the source and the drain have the same conductivity type as that of the source and the drain. In this method, the dopants are implanted at an acute angle, they improve the drain current of a transistor, and thus improve the performance of a semiconductor device.Type: GrantFiled: January 4, 2019Date of Patent: August 31, 2021Inventor: Fu Hai Liu
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Patent number: 10879399Abstract: A semiconductor device includes a substrate, at least one source drain feature, a gate structure, and at least one gate spacer. The source/drain feature is present at least partially in the substrate. The gate structure is present on the substrate. The gate spacer is present on at least one sidewall of the gate structure. At least a bottom portion of the gate spacer has a plurality of dopants therein.Type: GrantFiled: September 19, 2018Date of Patent: December 29, 2020Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITEDInventors: Wei-Yang Lo, Tung-Wen Cheng, Chia-Ling Chan, Mu-Tsang Lin
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Patent number: 10790365Abstract: An LDMOS includes a body region disposed in the substrate and having a first conductivity type; a drift region disposed in the substrate and having a second conductivity type; a source region disposed in the body region and having the second conductivity type; a drain region disposed in the drift region and having the second conductivity type; an isolation region disposed in the drift region between the source region and the drain region; a gate disposed on the body region and the drift region; a source field plate electrically connected to the source region; a drain field plate electrically connected to the drain region; and a first gate plate electrically connected to the gate. The first gate plate is correspondingly disposed above the gate. The shapes of the first gate plate and the gate are substantially the same when viewed from a top view.Type: GrantFiled: February 23, 2018Date of Patent: September 29, 2020Assignee: Vanguard International Semiconductor CorporationInventors: Wen-Hsin Lin, Yu-Hao Ho, Shin-Cheng Lin, Cheng-Tsung Wu
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Patent number: 10714614Abstract: A semiconductor device includes a substrate including a first active region, a second active region and a field region between the first and second active regions, and a gate structure formed on the substrate to cross the first active region, the second active region and the field region. The gate structure includes a p type metal gate electrode and an n-type metal gate electrode directly contacting each other, the p-type metal gate electrode extends from the first active region less than half way toward the second active region.Type: GrantFiled: August 22, 2018Date of Patent: July 14, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Ju-Youn Kim, Hyung-Soon Jang, Jong-Mil Youn, Tae-Won Ha
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Patent number: 10680080Abstract: A method for manufacturing a semiconductor device includes forming a gate insulation film and a polysilicon layer on a substrate, forming a polysilicon pattern by etching the polysilicon layer, forming an opening in the polysilicon pattern that exposes a part of the polysilicon pattern by forming a mask pattern on the polysilicon pattern, forming a gate electrode by etching the part of the polysilicon pattern exposed through the opening, forming a P-type body region by ion implanting a P-type dopant onto the substrate using the gate electrode as a mask, forming an N-type LDD region on the P-type body region by ion implanting an N-type dopant onto the substrate using the gate electrode as a mask, forming a spacer on a side surface of the gate electrode, and forming an N-type source region on a side surface of the spacer.Type: GrantFiled: October 17, 2018Date of Patent: June 9, 2020Assignee: MagnaChip Semiconductor, Ltd.Inventors: Tae Hoon Lee, Jun Hee Cho, Jin Seong Chung
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Patent number: 10680074Abstract: A tunable breakdown voltage RF MESFET and/or MOSFET and methods of manufacture are disclosed. The method includes forming a first line and a second line on an underlying gate dielectric material. The second line has a width tuned to a breakdown voltage. The method further includes forming sidewall spacers on sidewalls of the first and second line such that the space between first and second line is pinched-off by the dielectric spacers. The method further includes forming source and drain regions adjacent outer edges of the first line and the second line, and removing at least the second line to form an opening between the sidewall spacers of the second line and to expose the underlying gate dielectric material. The method further includes depositing a layer of material on the underlying gate dielectric material within the opening, and forming contacts to a gate structure and the source and drain regions.Type: GrantFiled: April 3, 2018Date of Patent: June 9, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Vibhor Jain, Qizhi Liu, John J. Pekarik
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Patent number: 10388525Abstract: Multi-angled deposition and masking techniques are provided to enable custom trimming and selective removal of spacers that are used for patterning features at sub-lithographic dimensions. For example, a method includes forming a sacrificial mandrel on a substrate, and forming first and second spacers on opposing sidewalls of the sacrificial mandrel. The first and second spacers are formed with an initial thickness Ts. A first angle deposition process is performed to deposit a material (e.g., insulating material or metallic material) at a first deposition angle A1 to form a first trim mask layer on an upper portion of the first spacer and the sacrificial mandrel while preventing the material from being deposited on the second spacer. A spacer etch process is performed to trim the first spacer to a first thickness T1, which is less than Ts, using the first trim mask layer as an etch mask.Type: GrantFiled: November 13, 2017Date of Patent: August 20, 2019Assignee: International Business Machines CorporationInventors: Marc A. Bergendahl, Sean D. Burns, Lawrence A. Clevenger, Christopher J. Penny, Michael Rizzolo
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Patent number: 10361079Abstract: Multi-angled deposition and masking techniques are provided to enable custom trimming and selective removal of spacers that are used for patterning features at sub-lithographic dimensions. For example, a method includes forming a sacrificial mandrel on a substrate, and forming first and second spacers on opposing sidewalls of the sacrificial mandrel. The first and second spacers are formed with an initial thickness TS. A first angle deposition process is performed to deposit a material (e.g., insulating material or metallic material) at a first deposition angle A1 to form a first trim mask layer on an upper portion of the first spacer and the sacrificial mandrel while preventing the material from being deposited on the second spacer. A spacer etch process is performed to trim the first spacer to a first thickness T1, which is less than TS, using the first trim mask layer as an etch mask.Type: GrantFiled: November 13, 2017Date of Patent: July 23, 2019Assignee: International Business Machines CorporationInventors: Marc A. Bergendahl, Sean D. Burns, Lawrence A. Clevenger, Christopher J. Penny, Michael Rizzolo
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Patent number: 10354874Abstract: A method of fabricating a semiconductor device includes forming a hard mask layer over a substrate. A multi-layer resist is formed over the hard mask layer. The multi-layer resist is etched to form a plurality of openings in the multi-layer resist to expose a portion of the hard mask layer. Ion are directionally provided at an angle to the multi-layer resist to predominately contact sidewalls of the plurality of openings in the multi-layer resist rather than the hard mask layer. In one embodiment, the multi-layer resist is directionally etched by directing etch ions at an angle to predominately contact sidewalls of the plurality of openings in the multi-layer resist rather than the hard mask layer. In another embodiment, the multi-layer resist is directionally implanted by directing implant ions at an angle to predominately contact sidewalls of the plurality of openings in the multi-layer resist rather than the hard mask layer.Type: GrantFiled: November 14, 2017Date of Patent: July 16, 2019Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shih-Chun Huang, Chin-Hsiang Lin, Chien-Wen Lai, Ru-Gun Liu, Wei-Liang Lin, Ya Hui Chang, Yung-Sung Yen, Yu-Tien Shen, Ya-Wen Yeh
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Patent number: 10312334Abstract: A semiconductor device having a hybrid doping distribution and a method of fabricating the semiconductor device are presented. The semiconductor device includes a gate disposed over an active semiconducting region and a first S/D region and a second S/D region each aligned to opposing sides of the gate side walls. The active semiconducting region has a doping profile that includes a first doping region at a first depth beneath the gate and having a first dopant concentration. The doping profile includes a second doping region at a second depth beneath the gate greater than the first depth and having a second dopant concentration less than the first dopant concentration.Type: GrantFiled: April 29, 2016Date of Patent: June 4, 2019Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Henry Kwong, Chih-Yung Lin, Po-Nien Chen, Chen Hua Tsai
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Patent number: 10163680Abstract: A method of forming an IC includes forming a buried layer (BL) doped a second type in a substrate doped a first type. Deep trenches are etched including narrower inner trench rings and wider outer trench rings through to the BL. A first deep sinker implanting uses ions of the second type with a first dose, a first energy, and a first tilt angle. A second deep sinker implant uses ions of the second type with a second dose that<the first dose, a second energy>than the first energy, and a second tilt angle<the first tilt angle. The outer trench rings outside and inner trench rings are dielectric lined. The dielectric lining is removed from a bottom of the outer trench rings. The outer trench rings are filled with an electrically conductive filler material that contacts the substrate and fills the inner trench rings.Type: GrantFiled: September 19, 2017Date of Patent: December 25, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Binghua Hu, Alexei Sadovnikov, Scott Kelly Montgomery
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Patent number: 10158002Abstract: A method of making a semiconductor switch device and a semiconductor switch device made according to the method. The method includes depositing a gate dielectric on a major surface of a substrate. The method also includes depositing and patterning a gate electrode on the gate dielectric. The method further includes depositing an oxide to cover the top surface and sidewall(s) of the gate electrode. The method also includes, after depositing the oxide, performing a first ion implantation process at a first implantation dosage for forming a lightly doped drain region of the switch device. The method further includes forming sidewall spacers on the sidewall(s) of the gate electrode. The method also includes performing a second ion implantation process at a second implantation dosage for forming a source region and a drain region of the semiconductor switch device. The second implantation dosage is greater than the first implantation dosage.Type: GrantFiled: August 15, 2017Date of Patent: December 18, 2018Assignee: NXP B.V.Inventors: Mahmoud Al-sa'di, Petrus Magnee, Johannes Donkers, Ihor Brunets, Joost Melai
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Patent number: 10134882Abstract: A method of controlling formation of junctions in a lateral bipolar junction transistor comprises: providing a starting substrate comprising a bulk silicon material as a handle substrate, a buried oxide layer on the handle substrate, and an intrinsic base semiconductor layer of germanium on the buried oxide layer; forming an extrinsic base layer on the intrinsic base semiconductor layer; etching at least a portion of the base layer; disposing a sidewall spacer on a side of the base layer; disposing a faceted germanium layer adjacent the sidewall spacer; recessing the faceted germanium layer and the intrinsic base semiconductor layer below the sidewall spacer; using a hot angle ion implantation technique to implant ions into a side of the intrinsic base semiconductor layer to form a junction edge/profile; annealing the implanted ions; and epitaxially growing a Si or SiGe layer on the germanium layer and the junction edge/profile.Type: GrantFiled: October 24, 2017Date of Patent: November 20, 2018Assignee: International Business Machines CorporationInventors: Pouya Hashemi, Kam-Leung Lee, Tak H. Ning, Jeng-Bang Yau
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Patent number: 10128117Abstract: A semiconductor device may include the following elements: a first doped region; a second doped region, which contacts the first doped region; a third doped region, which contacts the first doped region; a first dielectric layer, which contacts the above-mentioned doped regions; a first gate member, which is conductive and comprises a first gate portion, a second gate portion, and a third gate portion, wherein the first gate portion contacts the first dielectric layer, wherein the second gate portion is positioned between the first gate portion and the third gate portion, and wherein a width of the second portion is unequal to a width of the third gate portion; a doped portion, which is positioned between the third gate portion and the third doped region; a second gate member; and a second dielectric layer, which is positioned between the third gate portion and the second gate member.Type: GrantFiled: September 21, 2017Date of Patent: November 13, 2018Assignee: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATIONInventors: Wenbo Wang, Hanming Wu
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Patent number: 10096489Abstract: Provided is a method for manufacturing a semiconductor device with favorable electrical characteristics. The following steps are performed in the following order: forming an oxide semiconductor film over a substrate having a substantially planar surface; selectively etching the oxide semiconductor film to form an oxide semiconductor layer; implanting an oxygen ion on a top surface of the oxide semiconductor layer and a side surface of the oxide semiconductor layer in a cross-section perpendicular to the substantially planar surface in a channel width direction of the oxide semiconductor layer from an angle 0°<?<90°; forming an insulating layer over the oxide semiconductor layer, and performing heat treatment on the oxide semiconductor layer to diffuse oxygen into the oxide semiconductor layer.Type: GrantFiled: March 2, 2015Date of Patent: October 9, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Suguru Hondo, Naoto Yamade
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Patent number: 10084087Abstract: A device is provided. The device includes a transistor formed on a semiconductor substrate, the transistor having a conduction channel. The device includes at least one edge dislocation formed adjacent to the conduction channel on the semiconductor substrate. The device also includes at least one free surface introduced above the conduction channel and the at least one edge dislocation.Type: GrantFiled: April 17, 2017Date of Patent: September 25, 2018Assignee: Intel CorporationInventors: Cory E. Weber, Mark Y. Liu, Anand S. Murthy, Hemant V. Deshpande, Daniel B. Aubertine
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Patent number: 10049942Abstract: An aspect of the disclosure provides for an asymmetric semiconductor device. The asymmetric semiconductor device may comprise: a substrate; and a fin-shaped field effect transistor (FINFET) disposed on the substrate, the FINFET including: a set of fins disposed proximate a gate; a first epitaxial region disposed on a source region on the set of fins, the first epitaxial region having a first height; and a second epitaxial region disposed on a drain region on the set of fins, the second epitaxial region having a second height, wherein the first height is distinct from the second height.Type: GrantFiled: September 14, 2015Date of Patent: August 14, 2018Assignee: GLOBALFOUNDRIES INC.Inventors: Anthony I. Chou, Judson R. Holt, Arvind Kumar, Henry K. Utomo
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Patent number: 9966435Abstract: A novel semiconductor transistor is presented. The semiconductor structure has a MOSFET like structure, with the difference that the device channel is formed in an intrinsic region, so as to effectively decrease the impurity and surface scattering phenomena deriving from a high doping profile typical of conventional MOS devices. Due to the presence of the un-doped channel region, the proposed structure greatly reduces Random Doping Fluctuation (RDF) phenomena decreasing the threshold voltage variation between different devices. In order to control the threshold voltage of the device, a heavily doped poly-silicon or metallic gate is used. However, differently from standard CMOS devices, a high work-function metallic material, or a heavily p-doped poly-silicon layer, is used for an n-channel device and a low work-function metallic material, or heavily n-doped poly-silicon layer, is used for a p-channel FET. Doped or insulating regions are used to increase the control on the channel conductivity.Type: GrantFiled: December 9, 2015Date of Patent: May 8, 2018Assignee: QUALCOMM IncorporatedInventors: Fabio Alessio Marino, Paolo Menegoli
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Patent number: 9893061Abstract: A multiple-fin device includes a substrate and a plurality of fins formed on the substrate. Source and drain regions are formed in the respective fins. A dielectric layer is formed on the substrate. The dielectric layer has a first thickness adjacent one side of a first fin and having a second thickness, different from the first thickness, adjacent an opposite side of the fin. A continuous gate structure is formed overlying the plurality of fins, the continuous gate structure being adjacent a top surface of each fin and at least one sidewall surface of at least one fin. By adjusting the dielectric layer thickness, channel width of the resulting device can be fine-tuned.Type: GrantFiled: April 11, 2016Date of Patent: February 13, 2018Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chi-Wen Liu, Chao-Hsiung Wang
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Patent number: 9859168Abstract: A method of fabricating a semiconductor device including a diffused metal-oxide-semiconductor (DMOS) transistor, an n-type metal-oxide-semiconductor (NMOS) transistor, and a p-type metal-oxide-semiconductor (PMOS) transistor includes forming separation regions in a semiconductor substrate, forming a gate insulating film, forming a DMOS gate electrode on the gate insulating film, forming a first mask pattern on the semiconductor substrate, performing a first ion implantation process, forming a second mask pattern on the semiconductor substrate, performing a second ion implantation process, forming a third mask pattern on the semiconductor substrate and performing a third ion implantation process into the semiconductor substrate, and forming a fourth mask pattern on the semiconductor substrate and performing a fourth ion implantation process.Type: GrantFiled: January 17, 2017Date of Patent: January 2, 2018Assignee: Magnachip Semiconductor, Ltd.Inventors: Hyun Kwang Shin, Jung Lee, Kyung Ho Lee
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Patent number: 9761594Abstract: Approaches for providing a hardmask used during a halo/extension implant of a static random access memory (SRAM) layout for a semiconductor device are disclosed. Specifically, approaches are provided for forming a pull-down (PD) transistor over a substrate; forming a pass-gate (PG) transistor over the substrate; and patterning a hardmask over the device, the hardmask including a first section adjacent the PD transistor and a second section adjacent the PG transistor, wherein a distance between the first section and the PD transistor is shorter than a distance between the second section and the PG transistor. The respective distances between the first section and the PD transistor, and the second section and the PG transistor, are selected to prevent a halo/extension implant from impacting one side of the PD transistor, while allowing the halo/extension implant to impact both sides of the PG transistor.Type: GrantFiled: October 2, 2013Date of Patent: September 12, 2017Assignee: GLOBALFOUNDRIES INC.Inventors: Xusheng Wu, Bingwu Liu, Randy Mann
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Patent number: 9583347Abstract: A manufacturing method for a semiconductor device, the method, comprising forming, on a substrate, a first resist pattern including a plurality of line patterns extending in a predetermined direction, injecting an impurity into the substrate by using the first resist pattern, removing the first resist pattern, forming a second resist pattern including a plurality of second line patterns extending in the predetermined direction, and injecting an impurity into the substrate by using the second resist pattern, wherein, in the forming the second resist pattern, the plurality of second line patterns are respectively formed between places where the adjacent first line patterns are formed.Type: GrantFiled: March 17, 2016Date of Patent: February 28, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Mikio Arakawa, Satoshi Yoshizaki
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Patent number: 9570547Abstract: A high voltage DMOS half-bridge output for various DC to DC converters on a monolithic, junction isolated wafer is presented. A high-side lateral DMOS transistor is based on the epi extension diffusion and a five layer RESURF structure. The five layers are made possible by the epi extension diffusion which is formed by a suitable n-type dopant diffused into a p-type substrate and it is the same polarity as the epi. The five layers, starting with the p-type substrate, are the substrate, the n-type epi extension diffusion, a p-type buried layer, the n-type epi and a shallow p-type layer at the top of the epi. The epi extension is also used to shape the electric field by a specific lateral distribution and make the lateral and vertical electric fields to be the smoothest to avoid electric field induced breakdown in the silicon or oxide layers above the silicon.Type: GrantFiled: December 4, 2015Date of Patent: February 14, 2017Assignee: General Electronics Applications, Inc.Inventor: Joseph Pernyeszi