Patents Examined by Shouxiang Hu
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Patent number: 11881512Abstract: A method includes providing a silicon carbide substrate, wherein a gate trench extends from a main surface of the silicon carbide substrate into the silicon carbide substrate and wherein a gate dielectric is formed on at least one sidewall of the gate trench, and forming a gate electrode in the gate trench, the gate electrode including a metal structure and a semiconductor layer between the metal structure and the gate dielectric.Type: GrantFiled: November 4, 2021Date of Patent: January 23, 2024Assignee: Infineon Technologies AGInventors: Ralf Siemieniec, Thomas Aichinger, Romain Esteve, Ravi Keshav Joshi, Shiqin Niu
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Patent number: 11870012Abstract: A light emitting device comprises a semiconductor diode structure configured to emit light, a substrate that is transparent to light emitted by the semiconductor diode structure, and a reflective nanostructured layer. The reflective nanostructured layer may be disposed on or adjacent to a bottom surface of the substrate and configured to reflect toward and through a side wall surface of the substrate light that is emitted by the semiconductor structure and incident on the reflective nanostructured layer at angles at or near perpendicular incidence. Alternatively, the reflective nanostructured layer may be disposed on or adjacent to at least one sidewall surface of the substrate and configured to reflect toward and through the bottom surface of the substrate light that is emitted by the semiconductor structure and incident on the reflective nanostructured layer at angles at or near perpendicular incidence.Type: GrantFiled: July 12, 2022Date of Patent: January 9, 2024Assignee: Lumileds LLCInventor: Venkata Ananth Tamma
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Patent number: 11862476Abstract: A semiconductor device can include a semiconductor substrate and an active region in the semiconductor substrate, where the active region can include an oxide semiconductor material having a variable atomic concentration of oxygen. A first source/drain region can be in the active region, where the first source/drain region can have a first atomic concentration of oxygen in the oxide semiconductor material. A second source/drain region can be in the active region spaced apart from first source/drain region and a channel region can be in the active region between the first source/drain region and the second source/drain region, where the channel region can have a second atomic concentration of oxygen in the oxide semiconductor material that is less than the first atomic concentration of oxygen. A gate electrode can be on the channel region and extend between the first source/drain region and the second source/drain region.Type: GrantFiled: October 21, 2020Date of Patent: January 2, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Minhee Cho, Junsoo Kim, Ho Lee, Chankyung Kim, Hei Seung Kim, Jaehong Min, Sangwuk Park, Woo Bin Song, Sang Woo Lee
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Patent number: 11855097Abstract: A semiconductor device includes a gate stack, an epitaxy structure, a first spacer, a second spacer, and a dielectric residue. The gate stack is over a substrate. The epitaxy structure is formed raised above the substrate. The first spacer is on a sidewall of the gate stack. The first spacer and the epitaxy structure define a void therebetween. The second spacer seals the void between the first spacer and the epitaxy structure. The dielectric residue is in the void and has an upper portion and a lower portion under the upper portion. The upper portion of the dielectric residue has a silicon-to-nitrogen atomic ratio higher than a silicon-to-nitrogen atomic ratio of the lower portion of the dielectric residue.Type: GrantFiled: August 10, 2022Date of Patent: December 26, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Bo-Yu Lai, Kai-Hsuan Lee, Wei-Yang Lee, Feng-Cheng Yang, Yen-Ming Chen
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Patent number: 11830777Abstract: A device includes a MOS transistor and a bipolar transistor at a same first portion of a substrate. The first portion includes a first well doped with a first type forming the channel of the MOS transistor and two first regions doped with a second type opposite to the first type that are arranged in the first well which form the source and drain of the MOS transistor. The first portion further includes: a second well doped with the second type that is arranged laterally with respect to the first well to form the base of the bipolar transistor; a second region doped with the first type that is arranged in the second well to form the emitter of the bipolar transistor; and a third region doped with the first type that is arranged under the second well to form the collector of the bipolar transistor.Type: GrantFiled: July 12, 2022Date of Patent: November 28, 2023Assignee: STMicroelectronics (Rousset) SASInventors: Romeric Gay, Abderrezak Marzaki
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Patent number: 11830776Abstract: An integrated circuit includes a junction field-effect transistor formed in a semiconductor substrate. The junction field-effect transistor includes a drain region, a source region, a channel region, and a gate region. A first isolating region separates the drain region from both the gate region and the channel region. A first connection region connects the drain region to the channel region by passing underneath the first isolating region in the semiconductor substrate. A second isolating region separates the source region from both the gate region and the channel region. A second connection region connects the source region to the channel region by passing underneath the second isolating region in the semiconductor substrate.Type: GrantFiled: April 27, 2022Date of Patent: November 28, 2023Assignee: STMicroelectronics (Crolles 2) SASInventor: Jean Jimenez Martinez
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Patent number: 11832443Abstract: Apparatuses and methods for manufacturing semiconductor memory devices are described.Type: GrantFiled: August 19, 2021Date of Patent: November 28, 2023Assignee: Micron Technology, Inc.Inventor: Yutaka Nakae
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Patent number: 11823951Abstract: The present disclosure provides a method for manufacturing a semiconductor structure. The method includes forming a bit line on a substrate, forming a first dielectric layer over the substrate and surrounding a lower portion of the bit line, forming a second dielectric layer over the bit line and the first dielectric layer, forming a contact over the second dielectric layer, wherein a height of the contact above the substrate is greater than a height of the first dielectric layer above the substrate, removing the first dielectric layer and the second dielectric layer, and forming a third dielectric layer conformally over the bit line, the substrate and the contact, thereby forming an air gap between the contact and the bit line.Type: GrantFiled: January 12, 2022Date of Patent: November 21, 2023Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Yao-Hsiung Kung
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Patent number: 11824027Abstract: The present disclosure provides a semiconductor package including a semiconductor chip and a package substrate. The semiconductor chip includes a substrate, a plurality of conductive pads in the substrate, and a plurality of conductive bumps. Each of the conductive bumps is over corresponding conductive pad. At least one of the conductive bumps proximity to an edge of the semiconductor chip is in contact with at least two discrete regions of the corresponding conductive pad. The package substrate has a concave surface facing the semiconductor chip and joining the semiconductor chip through the plurality of conductive bumps.Type: GrantFiled: November 6, 2020Date of Patent: November 21, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventor: Shih-Cheng Chang
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Patent number: 11823947Abstract: An integrated circuit includes an N-type laterally diffused metal-oxide semiconductor (NLDMOS) transistor including an active semiconductor substrate region having P-type conductivity. The integrated circuit further includes a buried semiconductor region having N+-type conductivity underneath the active substrate region. The buried semiconductor region is more heavily doped than the active semiconductor substrate region.Type: GrantFiled: November 1, 2022Date of Patent: November 21, 2023Assignee: STMicroelectronics (Crolles 2) SASInventor: Jean Jimenez Martinez
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Patent number: 11825644Abstract: A semiconductor memory device includes a substrate, at least one word line, a plurality of bit lines and a plurality of insulating structures. The word line is disposed in the substrate, extends along a first direction, and includes a gate cap layer. The bit lines are disposed on the substrate and respectively extend along a second direction. The bit line crosses the word line, and includes a conductive layer. The insulating structures are disposed on the word line and respectively disposed between the bit lines. The bottom surface of the insulating structure is located in the gate cap layer. The area of the top surface of the insulating structure is larger than the area of the bottom surface of the insulating structure.Type: GrantFiled: November 16, 2021Date of Patent: November 21, 2023Inventors: Janbo Zhang, Yu-Cheng Tung
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Patent number: 11818914Abstract: A display device includes: a resin layer on the circuit layer including a groove surrounding and separating a display area; light-emitting elements on an upper surface of the resin layer so as to emit light with luminances controlled by the currents; a sealing layer covering the light-emitting elements; a second substrate above the sealing layer; a sealing material provided between the sealing layer and the second substrate so as to surround the display area and the groove; and a filling layer surrounded by the sealing material between the sealing layer and the second substrate. The groove is formed along a line describing a shape that is inscribed in a rectangle and not in contact with corners of the rectangle as viewed in a direction vertical to the upper surface of the resin layer.Type: GrantFiled: November 7, 2022Date of Patent: November 14, 2023Assignee: Japan Display Inc.Inventors: Takayasu Suzuki, Toshihiro Sato
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Patent number: 11812603Abstract: A microelectronic device comprises semiconductive pillar structures each individually comprising a digit line contact region disposed laterally between two storage node contact regions. At least one semiconductive pillar structure of the semiconductive pillar structures comprises a first end portion comprising a first storage node contact region, a second end portion comprising a second storage node contact region, and a middle portion between the first end portion and the second end portion and comprising a digit line contact region, a longitudinal axis of the first end portion oriented at an angle with respect to a longitudinal axis of the middle portion. Related microelectronic devices, electronic systems, and methods are also described.Type: GrantFiled: August 13, 2020Date of Patent: November 7, 2023Assignee: Micron Technology, Inc.Inventors: Si-Woo Lee, Scott L. Light, Song Guo
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Patent number: 11791334Abstract: The present disclosure relates to semiconductor structures and, more particularly, to heterojunction bipolar transistors (HBTs) with a buried trap rich isolation region and methods of manufacture. The structure includes: a first heterojunction bipolar transistor; a second heterojunction bipolar transistor; and a trap rich isolation region embedded within a substrate underneath both the first heterojunction bipolar transistor and the second heterojunction bipolar transistor.Type: GrantFiled: October 20, 2020Date of Patent: October 17, 2023Assignee: GLOBALFOUNDRIES U.S. INC.Inventors: Vibhor Jain, John J. Ellis-Monaghan, Anthony K. Stamper, Steven M. Shank, John J. Pekarik
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Patent number: 11776953Abstract: Provided is an n-channel BiMOS semiconductor device having a trench gate structure, the n-channel BiMOS semiconductor device including: an n+ drain layer; a parallel pn layer including n? drift and p pillar layers joined alternately; a composite layer including a p base layer and an n+ source layer, the n+ drain layer, the parallel pn layer, and the composite layer being provided in order; a high-resistance layer provided between a portion of the p base layer above the p pillar layer and the n+ source layer; and a high-resistance layer provided between the p pillar layer and the p base layer, the p pillar layer having an impurity concentration lower than that of the n? drift layer.Type: GrantFiled: February 14, 2022Date of Patent: October 3, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Yasuhiro Maeda, Yoshinari Tsukada, Shinya Maita, Genki Nakamura, Yuki Negoro
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Patent number: 11776996Abstract: An ESD protection device includes a semiconductor body having an upper surface, a plurality of p-type wells that each extend from the upper surface into the semiconductor body, a plurality of n-type wells that each extend from the upper surface into the semiconductor body, first isolation regions comprising an electrical insulator that laterally surrounds the p-type wells and extends from the upper surface into the semiconductor body at least as deep as the p-type wells, and second isolation regions comprising an electrical insulator that laterally surrounds the n-type wells and extends from the upper surface into the semiconductor body at least as deep as the n-type wells, wherein the p-type wells and the n-type wells alternate with one another a first direction, and wherein an isolating area of the first isolation regions is greater than an isolating area of the second isolation regions.Type: GrantFiled: November 29, 2021Date of Patent: October 3, 2023Assignee: INFINEON TECHNOLOGIES AGInventors: Egle Tylaite, Joost Adriaan Willemen
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Patent number: 11765882Abstract: The present application discloses a method for fabricating a semiconductor device. The method for fabricating a semiconductor device includes providing a substrate comprising a center area and a peripheral area surrounding the center area, forming a first gate stack on the peripheral area and having a top surface, and forming an active column in the center area and having a top surface at a same vertical level as the top surface of the first gate stack.Type: GrantFiled: November 5, 2021Date of Patent: September 19, 2023Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Shing-Yih Shih
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Patent number: 11756864Abstract: A semiconductor device and a method of forming the same are provided. A method includes forming a gate over a semiconductor structure. An epitaxial source/drain region is formed adjacent the gate. A dielectric layer is formed over the epitaxial source/drain region. An opening extending through the dielectric layer and exposing the epitaxial source/drain region is formed. A conductive material is non-conformally deposited in the opening. The conductive material fills the opening in a bottom-up manner.Type: GrantFiled: November 23, 2020Date of Patent: September 12, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Mrunal A Khaderbad, Yasutoshi Okuno, Sung-Li Wang, Pang-Yen Tsai, Shen-Nan Lee, Teng-Chun Tsai
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Patent number: 11749684Abstract: A circuit device includes an N-type well on a P-type substrate, a P-type well provided in the N-type well, a circuit element provided in the P-type well, a P-type well provided in an N-type well, and a circuit element provided in the P-type well. A ground power supply voltage is supplied to a P-type well. A power supply voltage different from the ground power supply voltage is supplied to a P-type well. The ground power supply voltage or a first potential that is greater than or equal to the potential of the ground power supply voltage and less than the potential of a high potential-side power supply voltage is supplied to an N-type well.Type: GrantFiled: July 30, 2020Date of Patent: September 5, 2023Inventors: Kei Ishimaru, Atsushi Yamada
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Patent number: 11742414Abstract: A semiconductor device is provided. The semiconductor device includes a semiconductor substrate; fins on the semiconductor substrate; an isolation layer formed on the semiconductor substrate and between adjacent fins; and gate structures on sides of the isolation layer. The isolation layer has a top surface higher than top surfaces of the fins and passes through the fins along a direction perpendicular to an extending direction of the fins and in parallel with a surface of the semiconductor substrate.Type: GrantFiled: January 4, 2021Date of Patent: August 29, 2023Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, SMIC New Technology Research and Development (Shanghai) CorporationInventor: Fei Zhou