Patents by Inventor Chieh Lu
Chieh Lu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250254916Abstract: A method for manufacturing a semiconductor device includes: forming a channel including a semiconductor material; forming two intermediate conductive layers in contact with the channel and spaced apart from each other; and forming two conductive contacts respectively on the two intermediate conductive layers. Each of the intermediate conductive layers includes at least one stacking unit. The at least one stacking unit includes two first metal oxide layers spaced apart from each other and a second metal oxide layer disposed between the two first metal oxide layers and extending along a lengthwise line such that the two first metal oxide layers are opposite to each other relative to the lengthwise line. Each of the first metal oxide layers includes first metal atoms. The second metal oxide layer includes second metal atoms that are different from the first metal atoms.Type: ApplicationFiled: February 7, 2024Publication date: August 7, 2025Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Yen-Chieh HUANG, Huai-Ying HUANG, Yu-Chuan SHIH, Chun-Chieh LU, I-Che LEE, Yu-Ming LIN
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Publication number: 20250248046Abstract: A semiconductor device includes a first electrode layer, a ferroelectric layer and a first alignment layer. The first alignment layer is disposed between the first electrode layer and the ferroelectric layer, and the ferroelectric layer and the first alignment layer have the same crystal lattice orientation. In some embodiments, a material of the first alignment layer has a band gap smaller than 50 meV.Type: ApplicationFiled: March 20, 2025Publication date: July 31, 2025Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Lu, Qing Shi, Bo-Feng Young, Yu-Chuan Shih, Sai-Hooi Yeong, Blanka Magyari-Kope, Ying-Chih Chen, Tzer-Min Shen, Yu-Ming Lin, Chung-Te Lin
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Patent number: 12376347Abstract: Provided are a ferroelectric memory device and a method of forming the same. The ferroelectric memory device includes: a gate electrode; a ferroelectric layer, disposed on the gate electrode; a channel layer, disposed on the ferroelectric layer; a pair of source/drain (S/D) electrodes, disposed on the channel layer; a first insertion layer, disposed between the gate electrode and the ferroelectric layer; and a second insertion layer, disposed between the ferroelectric layer and the channel layer, wherein the second insertion layer has a thickness less than a thickness of the first insertion layer.Type: GrantFiled: August 12, 2022Date of Patent: July 29, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuo-Chang Chiang, Yu-Chuan Shih, Chun-Chieh Lu, Po-Ting Lin, Hai-Ching Chen, Sai-Hooi Yeong, Yu-Ming Lin, Chung-Te Lin
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Publication number: 20250241015Abstract: Oxide semiconductor ferroelectric field effect transistors (OS-FeFETs) and method of forming the same are provide. A device disclosed herein includes an electrode in a first dielectric layer, a ferroelectric layer over the electrode and the first dielectric layer, a high-k dielectric layer over the ferroelectric layer, an oxide semiconductor layer over the high-k dielectric layer, a second dielectric layer over the oxide semiconductor layer and the high-k dielectric layer, and a first contact feature and a second contact feature extending through the second dielectric layer to contact the oxide semiconductor layer.Type: ApplicationFiled: March 28, 2024Publication date: July 24, 2025Inventors: Chun-Chieh Lu, Yu-Chuan Shih, Yu-Ming Lin
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Publication number: 20250241064Abstract: A method for forming a memory device includes: forming a first layer stack and a second layer stack successively over a substrate, wherein each of the first and the second layer stacks comprises a dielectric layer, a channel layer, and a source/drain layer formed successively over the substrate; forming openings that extend through the first layer stack and the second layer stack, where the openings include first openings within boundaries of the first and the second layer stacks, and a second opening extending from a sidewall of the second layer stack toward the first openings; forming inner spacers by replacing portions of the source/drain layer exposed by the openings with a dielectric material; lining sidewalls of the openings with a ferroelectric material; and forming first gate electrodes in the first openings and a dummy gate electrode in the second opening by filling the openings with an electrically conductive material.Type: ApplicationFiled: April 9, 2025Publication date: July 24, 2025Inventors: Chun-Chieh LU, Sai-Hooi Yeong, Bo-Feng Young, Yu-Ming Lin, Han-Jong Chia
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Patent number: 12369354Abstract: A thin film transistor may be manufactured by forming a gate electrode in an insulating layer over a substrate, forming a gate dielectric over the gate electrode and the insulating layer, forming an active layer over the gate electrode, and forming a source electrode and a drain electrode contacting a respective portion of a top surface of the active layer. A surface oxygen concentration may be increased in at least one of the gate dielectric and the active layer by introducing oxygen atoms into a surface region of a respective one of the gate dielectric and the active layer.Type: GrantFiled: July 26, 2023Date of Patent: July 22, 2025Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Wu-Wei Tsai, Chun-Chieh Lu, Hai-Ching Chen, Yu-Ming Lin, Sai-Hooi Yeong
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Patent number: 12369362Abstract: A process is provided to fabricate a finFET device having a semiconductor layer of a two-dimensional “2D” semiconductor material. The semiconductor layer of the 2D semiconductor material is a thin film layer formed over a dielectric fin-shaped structure. The 2D semiconductor layer extends over at least three surfaces of the dielectric fin structure, e.g., the upper surface and two sidewall surfaces. A vertical protrusion metal structure, referred to as “metal fin structure”, is formed about an edge of the dielectric fin structure and is used as a seed to grow the 2D semiconductor material.Type: GrantFiled: June 28, 2024Date of Patent: July 22, 2025Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chao-Ching Cheng, Hung-Li Chiang, Chun-Chieh Lu, Ming-Yang Li, Tzu-Chiang Chen
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Publication number: 20250227934Abstract: A method is provided. The method includes applying a first pulse to a ferroelectric memory device, measuring a memory window metric of the ferroelectric memory device, and applying a second pulse to the ferroelectric memory device. The first pulse may have a first voltage magnitude. The second pulse may have a second voltage magnitude. The second voltage magnitude may be determined based at least in part on the measured memory window metric.Type: ApplicationFiled: January 8, 2024Publication date: July 10, 2025Inventors: YU-CHUAN SHIH, YU-KAI CHANG, PEI-CHUN LIAO, HUAI-YING HUANG, CHUN-CHIEH LU, YU-MING LIN
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Patent number: 12349361Abstract: A ferroelectric memory device includes a multi-layer stack, a channel layer and a III-V based ferroelectric layer. The multi-layer stack is disposed on a substrate and includes a plurality of conductive layers and a plurality of dielectric layers stacked alternately. The channel layer penetrates through the plurality of conductive layers and the plurality of dielectric layers of the multi-layer stack. The III-V based ferroelectric layer is disposed between the channel layer and the multi-layer stack, and includes at least one element selected from Group III elements, at least one element selected from Group V elements, and at least one element selected from transition metal elements.Type: GrantFiled: December 8, 2022Date of Patent: July 1, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Lu, Sai-Hooi Yeong, Yu-Ming Lin, Mauricio Manfrini, Georgios Vellianitis
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Publication number: 20250212417Abstract: A semiconductor structure includes a gate layer, a ferroelectric layer, a source structure, a drain structure, an oxide semiconductor and a high-k material layer. The gate layer is disposed in an interconnect structure. The ferroelectric layer is disposed over the gate layer. The source structure and the drain structure are disposed over the ferroelectric layer. The oxide semiconductor is disposed over the ferroelectric layer and between the source structure and the drain structure. The high-k material layer is disposed on and contacts a surface of the ferroelectric layer. A method of manufacturing the semiconductor structure is also provided.Type: ApplicationFiled: December 25, 2023Publication date: June 26, 2025Inventors: YU-CHUAN SHIH, CHUN-CHIEH LU, KUO-CHANG CHIANG, CHIH-YU CHANG, HUAI-YING HUANG, YU-MING LIN
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Publication number: 20250191912Abstract: A method includes: forming a bottom electrode over a substrate; depositing a first seed layer over the bottom electrode; performing a first surface treatment on the first seed layer to convert a crystal phase of the first seed layer; depositing a dielectric layer over the bottom electrode adjacent to the first seed layer; depositing an upper layer over the dielectric layer; and performing a thermal operation on the dielectric layer subsequent to the first surface treatment to thereby convert the dielectric layer into a ferroelectric layer.Type: ApplicationFiled: February 19, 2025Publication date: June 12, 2025Inventors: CHUN-CHIEH LU, SAI-HOOI YEONG, YU-MING LIN
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Patent number: 12324194Abstract: A semiconductor device and a method for manufacturing the semiconductor device are provided. The semiconductor device comprises a gate, a ferroelectric layer disposed on the gate; a first channel layer disposed on the ferroelectric layer, a second channel layer disposed on the ferroelectric layer, and source and drain regions disposed on the first channel layer. The first channel layer includes a first thickness and the second channel layer includes a second thickness. A ratio of the first thickness and the second thickness is less than ?.Type: GrantFiled: May 19, 2022Date of Patent: June 3, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chih-Yu Chang, Chun-Chieh Lu, Yu-Chien Chiu, Ya-Yun Cheng, Yu-Ming Lin, Sai-Hooi Yeong, Hung-Wei Li
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Patent number: 12302590Abstract: Embodiments include structures and methods for fabricating an MFM capacitor having a plurality of metal contacts. An embodiment may include a first metal strip, disposed on a substrate and extending in a first direction, a ferroelectric blanket layer, disposed on the first metal strip, a second metal strip, disposed on the ferroelectric blanket layer and extending in a second direction different from the first direction, and a plurality of metal contacts disposed between the first metal strip and the second metal strip and located within an intersection region of the first metal strip and the second metal strip.Type: GrantFiled: August 1, 2023Date of Patent: May 13, 2025Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Chun-Chieh Lu, Mauricio Manfrini, Marcus Johannes Hendricus Van Dal, Chih-Yu Chang, Sai-Hooi Yeong, Yu-Ming Lin, Georgios Vallianitis
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Patent number: 12302636Abstract: A method for forming a memory device includes: forming a first layer stack and a second layer stack successively over a substrate, wherein each of the first and the second layer stacks comprises a dielectric layer, a channel layer, and a source/drain layer formed successively over the substrate; forming openings that extend through the first layer stack and the second layer stack, where the openings include first openings within boundaries of the first and the second layer stacks, and a second opening extending from a sidewall of the second layer stack toward the first openings; forming inner spacers by replacing portions of the source/drain layer exposed by the openings with a dielectric material; lining sidewalls of the openings with a ferroelectric material; and forming first gate electrodes in the first openings and a dummy gate electrode in the second opening by filling the openings with an electrically conductive material.Type: GrantFiled: July 20, 2022Date of Patent: May 13, 2025Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chun-Chieh Lu, Sai-Hooi Yeong, Bo-Feng Young, Yu-Ming Lin, Han-Jong Chia
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Patent number: 12302557Abstract: In an embodiment, a method includes forming a multi-layer stack including alternating layers of an isolation material and a semiconductor material, patterning the multi-layer stack to form a first channel structure in a first region of the multi-layer stack, where the first channel structure includes the semiconductor material, depositing a memory film layer over the first channel structure, etching a first trench extending through a second region of the multi-layer stack to form a first dummy bit line and a first dummy source line in the second region, where the first dummy bit line and first dummy source line each include the semiconductor material, and replacing the semiconductor material of the first dummy bit line and the first dummy source line with a conductive material to form a first bit line and a first source line.Type: GrantFiled: July 31, 2023Date of Patent: May 13, 2025Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Bo-Feng Young, Sai-Hooi Yeong, Chi On Chui, Chun-Chieh Lu, Yu-Ming Lin
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Patent number: 12289893Abstract: A semiconductor device includes a first electrode layer, a ferroelectric layer, a first alignment layer and a second electrode layer. A material of the first alignment layer includes rare-earth metal oxide. The ferroelectric layer and the first alignment layer are disposed between the first electrode layer and the second electrode layer, and the first alignment layer is disposed between the ferroelectric layer and the first electrode layer.Type: GrantFiled: May 10, 2022Date of Patent: April 29, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Lu, Qing Shi, Bo-Feng Young, Yu-Chuan Shih, Sai-Hooi Yeong, Blanka Magyari-Kope, Ying-Chih Chen, Tzer-Min Shen, Yu-Ming Lin, Chung-Te Lin
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Patent number: 12261043Abstract: A method includes: forming a bottom electrode over a substrate; depositing a first seed layer over the bottom electrode, the first seed layer having an amorphous crystal phase; performing a first surface treatment on the first seed layer, wherein after the first surface treatment the first seed layer includes at least one of a tetragonal crystal phase and an orthorhombic crystal phase; depositing a dielectric layer over the bottom electrode adjacent to the first seed layer; depositing an upper layer over the dielectric layer; and performing a thermal operation on the dielectric layer to thereby convert the dielectric layer into a ferroelectric layer.Type: GrantFiled: November 15, 2023Date of Patent: March 25, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chun-Chieh Lu, Sai-Hooi Yeong, Yu-Ming Lin
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Publication number: 20250063771Abstract: A transistor device having fin structures, source and drain terminals, channel layers and a gate structure is provided. The fin structures are disposed on a material layer. The fin structures are arranged in parallel and extending in a first direction. The source and drain terminals are disposed on the fin structures and the material layer and cover opposite ends of the fin structures. The channel layers are disposed respectively on the fin structures, and each channel layer extends between the source and drain terminals on the same fin structure. The gate structure is disposed on the channel layers and across the fin structures. The gate structure extends in a second direction perpendicular to the first direction. The materials of the channel layers include a transition metal and a chalcogenide, the source and drain terminals include a metallic material, and the channel layers are covalently bonded with the source and drain terminals.Type: ApplicationFiled: November 4, 2024Publication date: February 20, 2025Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Lu, Chao-Ching Cheng, Tzu-Ang Chao, Lain-Jong Li
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Publication number: 20250063086Abstract: The present disclosure generally relates to synchronizing copies of a data object.Type: ApplicationFiled: November 4, 2024Publication date: February 20, 2025Inventors: Adam Y. SYED, Justin R. ETZINE, Pierre J. DE FILIPPIS, Nicholas J. CIRCOSTA, Ryan A. WILLIAMS, David J. BROWNING, Chieh LU, Matthew C. LUCAS, Bhaskar P. SARMA, Jose A. LOZANO HINOJOSA, Sean GEIGER, David S. EVANS, Daniel B. POLLACK, Priya SHAH
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Publication number: 20250056809Abstract: A device includes a multi-layer stack, a channel layer, a ferroelectric layer and buffer layers. The multi-layer stack is disposed on a substrate and includes a plurality of conductive layers and a plurality of dielectric layers stacked alternately. The channel layer penetrates through the plurality of conductive layers and the plurality of dielectric layers. The ferroelectric layer is disposed between the channel layer and each of the plurality of conductive layers and the plurality of dielectric layers. The buffer layers include a metal oxide, and one of the buffer layers is disposed between the ferroelectric layer and each of the plurality of dielectric layers.Type: ApplicationFiled: October 29, 2024Publication date: February 13, 2025Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Chieh Lu, Georgios Vellianitis, Marcus Johannes Henricus Van Dal, Sai-Hooi Yeong, Yu-Ming Lin