Patents Examined by Vincent Wall
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Patent number: 12713659Abstract: A semiconductor device includes a first conductive layer, a first insulating layer on the first conductive layer, an oxide semiconductor layer on the first insulating layer, and second and third conductive layers on the oxide semiconductive layer. The oxide semiconductor layer includes a first region, a second region in contact with the second conductive layer, a third region in contact with the third conductive layer, a first impurity region between the first region and the second region, and a second impurity region between the first region and the third region. The first impurity region is in contact with the second conductive layer. The second impurity region is in contact with the third conductive layer. An electrical conductivity of each of the first impurity region and the second impurity region is greater than an electrical conductivity of each of the second region and the third region.Type: GrantFiled: August 10, 2023Date of Patent: August 18, 2026Assignee: Magnolia White CorporationInventors: Akihiro Hanada, Hajime Watakabe, Ryo Onodera
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Patent number: 12707644Abstract: A memory device includes: a first layer stack and a second layer stack formed successively over a substrate, where each of the first and the second layer stacks includes a first metal layer, a second metal layer, and a first dielectric material between the first and the second metal layers; a second dielectric material between the first and the second layer stacks; a gate electrode extending through the first and the second layer stacks, and through the second dielectric material; a ferroelectric material extending along and contacting a sidewall of the gate electrode; and a channel material, where a first portion and a second portion of the channel material extend along and contact a first sidewall of the first layer stack and a second sidewall of the second layer stack, respectively, where the first portion and the second portion of the channel material are separated from each other.Type: GrantFiled: June 13, 2024Date of Patent: August 11, 2026Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chao-I Wu, Yu-Ming Lin, Han-Jong Chia
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Patent number: 12696658Abstract: A display apparatus including an auxiliary electrode are disclosed. The display apparatus includes a contact area between pixel areas. The auxiliary electrode is within the contact area. A planarization layer covering the auxiliary electrode includes an inclined surface overlapping with the contact area and an upper surface extending from the inclined surface. A connection electrode covering the inclined surface and the upper surface of the planarization layer is connected to the auxiliary electrode. A light-emitting device on each pixel area has first and second electrodes and a light-emitting layer. The light-emitting layer and the second electrode extends onto the connection electrode. The light-emitting layer exposes a portion of the connection electrode by a reflow pattern, and the second electrode is in contact with the portion of the connection electrode exposed by the light-emitting layer. Thus, a process of connecting the second electrode and the connection electrode may be simplified.Type: GrantFiled: November 28, 2023Date of Patent: July 28, 2026Assignee: LG Display Co., Ltd.Inventors: Dong Il Chu, Min Joo Kim, Young Kyun Moon, Sang Hyuk Won, Seon Hee Lee
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Patent number: 12696477Abstract: Various embodiments of the present invention disclosure are directed to a vertical transistor having different doping profiles in its upper channel layer and lower channel layer for reducing leakage current while enhancing contact resistance and a method for manufacturing the vertical transistor. According to an embodiment of the present invention disclosure, a semiconductor device comprises a lower contact, a vertical channel layer on the lower contact, the vertical channel layer including a metal component and an oxygen component, and an upper contact on the vertical channel layer. The vertical channel layer has a gradual doping profile in which a doping concentration of the metal component is lowest in an intermediate region and gradually increases from the intermediate region to the upper contact.Type: GrantFiled: March 18, 2024Date of Patent: July 28, 2026Assignee: SK hynix Inc.Inventor: Young Gwang Yoon
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Patent number: 12690237Abstract: An oxide semiconductor film which has more stable electric conductivity is provided. The oxide semiconductor film comprises a crystalline region. The oxide semiconductor film has a first peak of electron diffraction intensity with a full width at half maximum of greater than or equal to 0.4 nm?1 and less than or equal to 0.7 nm?1 in a region where a magnitude of a scattering vector is greater than or equal to 3.3 nm?1 and less than or equal to 4.1 nm?1. The oxide semiconductor film has a second peak of electron diffraction intensity with a full width at half maximum of greater than or equal to 0.45 nm?1 and less than or equal to 1.4 nm?1 in a region where a magnitude of a scattering vector is greater than or equal to 5.5 nm?1 and less than or equal to 7.1 nm?1.Type: GrantFiled: February 4, 2021Date of Patent: July 21, 2026Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masashi Tsubuku, Kengo Akimoto, Hiroki Ohara, Tatsuya Honda, Takatsugu Omata, Yusuke Nonaka, Masahiro Takahashi, Akiharu Miyanaga
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Patent number: 12677446Abstract: A minute transistor is provided that includes a first insulator, a second insulator, a first, conductor, a second conductor, and third conductor, in which an angle is formed between a side surface of the first insulator and a top surface of the first conductor, and a length between the first conductor and a surface of the second conductor closest to the first conductor is at least greater than a length between the first conductor and the third conductor.Type: GrantFiled: May 28, 2024Date of Patent: July 7, 2026Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Toriumi, Takashi Hamada, Tetsunori Maruyama, Yuki Imoto, Yuji Asano, Ryunosuke Honda, Shunpei Yamazaki
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Patent number: 12677709Abstract: An object of the present disclosure is to suppress reduction of noise resistance and parasitic oscillation in a semiconductor device. A semiconductor device includes: a plurality of semiconductor chips parallelly connected to each other; a source electrode; a first source pattern connected to the source electrode; a source sensing terminal; and a second source pattern connected to the source sensing terminal, wherein a surface of each of the semiconductor chips is connected to the first source pattern, a surface of a reference chip is connected to the second source pattern, a surface of at least one non-reference chip as the semiconductor chip other than the reference chip is not connected to the second source pattern, and a resistance value of a gate resistance of the reference chip is larger than a resistance value of a gate resistance of the non-reference chip.Type: GrantFiled: January 5, 2024Date of Patent: July 7, 2026Assignee: Mitsubishi Electric CorporationInventor: Tetsuo Yamashita
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Patent number: 12677409Abstract: According to one embodiment, a semiconductor device includes a first insulating layer, a gate electrode layer provided on the first insulating layer, a second insulating layer provided on the gate electrode layer, an oxide semiconductor layer provided along the second insulating layer, the gate electrode layer and the first insulating layer, a gate insulating layer provided along the second insulating layer, the gate electrode layer and the first insulating layer, and surrounding a side surface of the oxide semiconductor layer, and a first hydrogen barrier film surrounding the oxide semiconductor layer and the gate insulating layer.Type: GrantFiled: November 10, 2022Date of Patent: July 7, 2026Assignee: Kioxia CorporationInventors: Tatsuki Kikuchi, Keiko Sakuma, Shosuke Fujii
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Patent number: 12672313Abstract: A transistor with a high on-state current and a semiconductor device with high productivity are provided. A first insulator; a second insulator over the first insulator; a third insulator and a first conductor over the second insulator; a fourth insulator over the third insulator and the first conductor; a fifth insulator over the fourth insulator; a first oxide over the fifth insulator; a second oxide over the first oxide; a third oxide and a fourth oxide over the second oxide; a second conductor over the third oxide; a third conductor over the fourth oxide; a sixth insulator over the second conductor; a seventh insulator over the third conductor; an eighth insulator over the fifth insulator to the seventh insulator; a fifth oxide over the second oxide and positioned between the second conductor and the third conductor; a ninth insulator over the fifth oxide; and a fourth conductor over the ninth insulator are included.Type: GrantFiled: July 8, 2020Date of Patent: June 30, 2026Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Tetsuya Kakehata
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Patent number: 12666811Abstract: A display device, a display panel, and a manufacturing method thereof are proposed. The display panel includes a substrate, a first insulation layer, a first electrode layer, a pixel definition layer, a light-emitting function layer and a second electrode.Type: GrantFiled: April 22, 2024Date of Patent: June 23, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Kuanta Huang, Yuhao Lee, Dacheng Zhang, Hui Tong, Xiaobin Shen, Shipeng Li, Chao Yang, Dongsheng Li
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Patent number: 12666635Abstract: We describe herein a gate controlled bipolar semiconductor device comprising a collector region of a first conductivity type, a drift region of a second conductivity type located over the collector region, a body region of a first conductivity type located over the drift region, a body region of a second conductivity type located over the drift region, at least one first contact region of a second conductivity type located above the body region and having a higher doping concentration compared to the body region, at least one second contact region of a first conductivity type located laterally adjacent to the at least one first contact region, the at least one second contact region having a higher doping concentration than the body region, at least one active trench extending from a surface into the drift region, wherein the at least one first contact region adjoins at least one active trench so that, in use, a channel region is formed along said at least one active trench and within the body region, and at lType: GrantFiled: June 18, 2020Date of Patent: June 23, 2026Assignees: DYNEX SEMICONDUCTOR LIMITED, ZHUZHOU CRRC TIMES SEMICONDUCTOR CO. LTD.Inventors: Luther-King Ekonde Ngwendson, Ian Deviny
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Patent number: 12666656Abstract: An integrated chip including a gate layer. An insulator layer is over the gate layer. A channel structure is over the insulator layer. A pair of source/drains are over the channel structure and laterally spaced apart by a dielectric layer. The channel structure includes a first channel layer between the insulator layer and the pair of source/drains, a second channel layer between the insulator layer and the dielectric layer, and a third channel layer between the second channel layer and the dielectric layer. The first channel layer, the second channel layer, and the third channel layer include different semiconductors.Type: GrantFiled: January 4, 2023Date of Patent: June 23, 2026Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ya-Yun Cheng, Wen-Ling Lu, Yu-Chien Chiu, Chung-Wei Wu, Zhiqiang Wu
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Patent number: 12660253Abstract: A transistor having a large S value or a semiconductor device performing calculation utilizing a transistor operation in a subthreshold region is provided. The transistor includes an oxide semiconductor layer including a channel formation region, a gate electrode including a region overlapping with the oxide semiconductor layer with an insulating layer therebetween, and a first conductive layer including a region overlapping with the oxide semiconductor layer with a ferroelectric layer therebetween. In particular, the ferroelectric layer includes a crystal having a crystal structure exhibiting ferroelectricity.Type: GrantFiled: November 9, 2021Date of Patent: June 16, 2026Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yuki Ito, Hitoshi Kunitake, Kazuki Tanemura
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Patent number: 12660250Abstract: A memory structure includes storage transistors organized as horizontal NOR memory strings where the storage transistors are thin-film ferroelectric field-effect transistors (FeFETs) having a ferroelectric gate dielectric layer formed adjacent an oxide semiconductor channel region. The ferroelectric storage transistors thus formed are junctionless transistors having no p/n junction in the channel. In some embodiments, the ferroelectric storage transistors in each NOR memory string share a common source line and a common bit line that are formed on a first side of the channel region, away from the ferroelectric gate dielectric layer, and in electrical contact with the oxide semiconductor channel region. The ferroelectric storage transistors in a NOR memory string are controlled by individual control gate electrodes that are formed adjacent the ferroelectric gate dielectric layer on a second side, opposite the first side, of the channel region.Type: GrantFiled: August 30, 2022Date of Patent: June 16, 2026Assignee: SUNRISE MEMORY CORPORATIONInventors: Wu-Yi Henry Chien, Christopher J. Petti, Eli Harari
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Patent number: 12660197Abstract: Provided is a ferroelectric memory device having a dielectric layer vertically interleaved between a first conductive line and a second conductive line. A first ferroelectric portion is arranged along a sidewall of the first conductive line and a second ferroelectric portion is arranged along a sidewall of the second conductive line. A channel layer is arranged along sides of the dielectric layer, the first conductive line, and the second conductive line. A topmost surface of the first ferroelectric portion is vertically separated from a bottommost surface of the second ferroelectric portion by the channel layer.Type: GrantFiled: May 30, 2024Date of Patent: June 16, 2026Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Lu, Han-Jong Chia, Sai-Hooi Yeong, Bo-Feng Young, Yu-Ming Lin
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Ferroelectric memory devices having improved ferroelectric properties and methods of making the same
Patent number: 12660252Abstract: Ferroelectric devices, including FeFET and/or FeRAM devices, include ferroelectric material layers deposited using atomic layer deposition (ALD). By controlling parameters of the ALD deposition sequence, the crystal structure and ferroelectric properties of the ferroelectric layer may be engineered. An ALD deposition sequence including relatively shorter precursor pulse durations and purge durations between successive precursor pulses may provide a ferroelectric layer having relatively uniform crystal grain sizes and a small mean grain size (e.g., ?3 nm), which may provide effective ferroelectric performance. An ALD deposition sequence including relatively longer precursor pulse durations and purge durations between successive precursor pulses may provide a ferroelectric layer having less uniform crystal grain sizes and a larger mean grain size (e.g., ?7 nm).Type: GrantFiled: September 22, 2021Date of Patent: June 16, 2026Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Po-Ting Lin, Song-Fu Liao, Rainer Yen-Chieh Huang, Hai-Ching Chen, Yu-Ming Lin, Chung-Te Lin -
Patent number: 12652831Abstract: An improved power MOSFET having a super junction structure is disclosed. The improved power MOSFET includes a plurality of unit cells UC, and each of the plurality of unit cells UC includes a column region PC1, a column region PC2, a pair of trenches TR formed between the column regions PC1 and PC2 in the X-direction and a pair of gate electrodes GE formed in the pair of trenches TR via gate insulating films (GI). The pair of trenches TR and the pair of gate-electrodes GE extend in Y-direction in a plan view. A plurality of column regions PC1 are formed so as to be spaced apart from one another along the Y-direction, and a width(L1) of the column region PC1 in the Y direction is wider than a width(L2) of the column region PC1 in the X direction.Type: GrantFiled: January 10, 2023Date of Patent: June 9, 2026Assignee: Renesas Electronics CorporationInventors: Yuta Nabuchi, Akihiro Shimomura
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Patent number: 12648236Abstract: A method includes etching a dielectric layer to form a dielectric fin, depositing a transition metal dichalcogenide layer on the dielectric fin, and performing an anisotropic etching process on the transition metal dichalcogenide layer. Horizontal portions of the transition metal dichalcogenide layer are removed, and vertical portions of the transition metal dichalcogenide layer on sidewalls of the dielectric fin remain to form a vertical semiconductor ring. The method further includes forming a gate stack on a first portion of the two-dimensional semiconductor vertical semiconductor ring, and forming a source/drain contact plug, wherein the source/drain contact plug contacts sidewalls of a second portion of the vertical semiconductor ring.Type: GrantFiled: May 8, 2024Date of Patent: June 2, 2026Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Sheng-Kai Su, Jin Cai
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Patent number: 12641865Abstract: Provided is field-effect transistor structure including: a substrate including therein at least one 1st doped region, a 2nd doped region on one side of the 1st doped region, and a 3rd doped region on another side of the 1st doped region; a 1st channel structure including therein a 4th doped region on the 2nd doped region in the substrate; and a 2nd channel structure, at a side of the 1st channel structure, including therein a 5th doped region on the 3rd doped region in the substrate, wherein the 4th, 2nd, 1st, 3rd and 5th doped regions form a sequentially connected passive device.Type: GrantFiled: January 9, 2023Date of Patent: May 26, 2026Assignee: Samsung Electronics Co., Ltd.Inventors: Jaehong Lee, Seungchan Yun, Sooyoung Park, Kang-ill Seo
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Patent number: 12635171Abstract: A semiconductor device includes a substrate, a buffer layer on the substrate, an n? type epitaxial layer extending upward from the buffer layer in one direction, and having a fin channel, a p type layer disposed on the buffer layer and surrounding the side and upper surfaces of the n? type epitaxial layer, a gate insulating layer on the p type layer, and a gate electrode on the gate insulating layer.Type: GrantFiled: November 22, 2023Date of Patent: May 19, 2026Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Dae Hwan Chun, Junghee Park, Jungyeop Hong, Taehyun Kim, Youngkyun Jung, NackYong Joo