Patents by Inventor Wei-Chih Wen
Wei-Chih Wen 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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Patent number: 12274070Abstract: A memory device and a manufacturing method thereof is described. The memory device includes a transistor structure over a substrate and a ferroelectric capacitor structure electrically connected with the transistor structure. The ferroelectric capacitor structure includes a top electrode layer, a bottom electrode layer and a ferroelectric stack sandwiched there-between. The ferroelectric stack includes a first ferroelectric layer, a first stabilizing layer, and one of a second ferroelectric layer or a second stabilizing layer. Materials of the first stabilizing layer and a second stabilizing layer include a metal oxide material.Type: GrantFiled: July 4, 2022Date of Patent: April 8, 2025Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Po-Ting Lin, Wei-Chih Wen, Kai-Wen Cheng, Wu-Wei Tsai, Yu-Ming Hsiang, Yan-Yi Chen, Hai-Ching Chen, Yu-Ming Lin, Chung-Te Lin
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Patent number: 12274077Abstract: A method of forming a semiconductor memory device includes: forming a stack structure on a substrate, the stack structure including a plurality of dielectric layers and a plurality of sacrificial layers alternatingly stacked in a Z direction substantially perpendicular to the substrate; forming a plurality of source/drain trenches in the stack structure; conformally forming a barrier layer in the source/drain trenches, and then filling the source/drain trenches with a plurality of sacrificial segments; forming a protection layer over the stack structure to cover the barrier layer and the sacrificial segments; removing the sacrificial layers of the stack structure to form a plurality of spaces among the dielectric layers; forming a plurality of conductive layers in the spaces; sequentially removing the protection layer, the sacrificial segments and the barrier layer; and forming a plurality of memory structures in the source/drain trenches.Type: GrantFiled: May 26, 2022Date of Patent: April 8, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Wei-Chih Wen, Yu-Wei Jiang, Han-Jong Chia
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Publication number: 20250081470Abstract: In a method of manufacturing a semiconductor device, a magnetic random access memory (MRAM) cell structure is formed. The MRAM cell structure includes a bottom electrode, a magnetic tunnel junction (MTJ) stack and a top electrode. A first insulating cover layer is formed over the MRAM cell structure. A second insulating cover layer is formed over the first insulating cover layer. An interlayer dielectric (ILD) layer is formed. A contact opening in the ILD layer is formed, thereby exposing the second insulating cover layer. A part of the second insulating cover layer and a part of the first insulating cover layer are removed, thereby exposing the top electrode. A conductive layer is formed in the opening contacting the top electrode.Type: ApplicationFiled: November 19, 2024Publication date: March 6, 2025Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hui-Hsien WEI, Chung-Te LIN, Han-Ting TSAI, Tai-Yen PENG, Yu-Teng DAI, Chien-Min LEE, Sheng-Chih LAI, Wei-Chih WEN
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Patent number: 12219880Abstract: A memory device includes a bottom electrode contact, a magnetic tunnel junction pattern, a protection insulating layer, a first capping layer, an interlayer insulating layer, and a second capping layer. The magnetic tunnel junction pattern is over the bottom electrode contact. The protection insulating layer surrounds the magnetic tunnel junction pattern. The first capping layer surrounds the protection insulating layer. The interlayer insulating layer surrounds the first capping layer. The second capping layer is over the first capping layer and the interlayer insulating layer.Type: GrantFiled: March 4, 2024Date of Patent: February 4, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tai-Yen Peng, Hui-Hsien Wei, Wei-Chih Wen, Pin-Ren Dai, Chien-Min Lee, Sheng-Chih Lai, Han-Ting Tsai, Chung-Te Lin
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Patent number: 12178051Abstract: In a method of manufacturing a semiconductor device, a magnetic random access memory (MRAM) cell structure is formed. The MRAM cell structure includes a bottom electrode, a magnetic tunnel junction (MTJ) stack and a top electrode. A first insulating cover layer is formed over the MRAM cell structure. A second insulating cover layer is formed over the first insulating cover layer. An interlayer dielectric (ILD) layer is formed. A contact opening in the ILD layer is formed, thereby exposing the second insulating cover layer. A part of the second insulating cover layer and a part of the first insulating cover layer are removed, thereby exposing the top electrode. A conductive layer is formed in the opening contacting the top electrode.Type: GrantFiled: July 31, 2023Date of Patent: December 24, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hui-Hsien Wei, Chung-Te Lin, Han-Ting Tsai, Tai-Yen Peng, Yu-Teng Dai, Chien-Min Lee, Sheng-Chih Lai, Wei-Chih Wen
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Publication number: 20240371861Abstract: A method includes forming a transistor having source and drain regions. The following are formed on the source/drain region: a first via, a first metal layer extending along a first direction on the first via, a second via overlapping the first via on the first metal layer, and a second metal extending along a second direction different from the first direction on the second via; and the following are formed on the drain/source region: a third via, a third metal layer on the third via, a fourth via overlapping the third via over the third metal layer, and a controlled device at a same height level as the second metal layer on the third metal layer.Type: ApplicationFiled: July 18, 2024Publication date: November 7, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wei-Chih WEN, Han-Ting TSAI, Chung-Te LIN
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Patent number: 12127489Abstract: An IC structure comprises a substrate, a first dielectric structure, a second dielectric structure, a first via structure, and a memory cell structure. The substrate comprises a memory region and a logic region. The first dielectric structure is over the memory region. The second dielectric structure laterally extends from the first dielectric structure to over the logic region. The second dielectric structure has a thickness less than a thickness of the first dielectric structure. The first via structure extends through the first dielectric structure. A top segment of the first via structure is higher than a top surface of the first dielectric structure. The first memory cell structure is over the first via structure.Type: GrantFiled: February 17, 2023Date of Patent: October 22, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tai-Yen Peng, Hui-Hsien Wei, Wei-Chih Wen, Pin-Ren Dai, Chien-Min Lee, Han-Ting Tsai, Jyu-Horng Shieh, Chung-Te Lin
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Patent number: 12113063Abstract: A method includes forming a transistor having source and drain regions. The following are formed on the source/drain region: a first via, a first metal layer extending along a first direction on the first via, a second via overlapping the first via on the first metal layer, and a second metal extending along a second direction different from the first direction on the second via; and the following are formed on the drain/source region: a third via, a third metal layer on the third via, a fourth via overlapping the third via over the third metal layer, and a controlled device at a same height level as the second metal layer on the third metal layer.Type: GrantFiled: January 30, 2023Date of Patent: October 8, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Wei-Chih Wen, Han-Ting Tsai, Chung-Te Lin
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Patent number: 12068433Abstract: A light-emitting device includes: a substrate having a top surface, wherein the top surface comprises a first portion and a second portion; a first semiconductor stack on the first portion, comprising a first upper surface and a first side wall; and a second semiconductor stack on the first upper surface, comprising a second upper surface and a second side wall, and wherein the second side wall connects the first upper surface; wherein the first semiconductor stack comprises a dislocation stop layer; wherein the dislocation stop layer comprises AlGaN; and wherein the first side wall and the second portion of the top surface form an acute angle ? between thereof.Type: GrantFiled: October 7, 2021Date of Patent: August 20, 2024Assignee: EPISTAR CORPORATIONInventors: Yen-Tai Chao, Sen-Jung Hsu, Tao-Chi Chang, Wei-Chih Wen, Ou Chen, Yu-Shou Wang, Chun-Hsiang Tu, Jing-Feng Huang
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Patent number: 12069958Abstract: A device includes a resistance switching layer, a capping layer, a top electrode, a first spacer, and a second spacer. The resistance switching layer is over a substrate. The capping layer is over the resistance switching layer. The top electrode is over the capping layer. The first spacer lines the resistance switching layer and the capping layer. The second spacer lines the first spacer. The capping layer is in contact with the top electrode, the first spacer, and the second spacer.Type: GrantFiled: May 4, 2023Date of Patent: August 20, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tai-Yen Peng, Hui-Hsien Wei, Wei-Chih Wen, Pin-Ren Dai, Chien-Min Lee, Sheng-Chih Lai, Han-Ting Tsai, Chung-Te Lin
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Publication number: 20240206344Abstract: A memory device includes a bottom electrode contact, a magnetic tunnel junction pattern, a protection insulating layer, a first capping layer, an interlayer insulating layer, and a second capping layer. The magnetic tunnel junction pattern is over the bottom electrode contact. The protection insulating layer surrounds the magnetic tunnel junction pattern. The first capping layer surrounds the protection insulating layer. The interlayer insulating layer surrounds the first capping layer. The second capping layer is over the first capping layer and the interlayer insulating layer.Type: ApplicationFiled: March 4, 2024Publication date: June 20, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tai-Yen PENG, Hui-Hsien WEI, Wei-Chih WEN, Pin-Ren DAI, Chien-Min LEE, Sheng-Chih LAI, Han-Ting TSAI, Chung-Te LIN
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Patent number: 12004431Abstract: A semiconductor device includes a bottom electrode; a magnetic tunneling junction (MTJ) element over the bottom electrode; a top electrode over the MTJ element; and a sidewall spacer abutting the MTJ element, wherein at least one of the bottom electrode, the top electrode, and the sidewall spacer includes a magnetic material.Type: GrantFiled: March 19, 2021Date of Patent: June 4, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Tsung-Chieh Hsiao, Po-Sheng Lu, Wei-Chih Wen, Liang-Wei Wang, Yu-Jen Wang, Dian-Hau Chen, Yen-Ming Chen
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Publication number: 20240145600Abstract: A semiconductor device includes a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode. The gate insulating layer is disposed between the gate electrode and the active layer, the source electrode and the drain electrode are arranged on one side of the gate insulating layer, wherein the gate insulating layer includes multilayer oxide films stacked on each other and at least one interface layer between the multilayer oxide films, and the material of the at least one interface layer is different from the material of the oxide films.Type: ApplicationFiled: January 20, 2023Publication date: May 2, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wei-Chih WEN, Yi-Lin YANG, Hai-Ching CHEN
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Publication number: 20240145571Abstract: In some embodiments, the present disclosure relates to an integrated circuit (IC) in which a memory structure comprises an inhibition layer inserted between two ferroelectric layers to create a tetragonal-phase dominant ferroelectric structure. In some embodiments, the ferroelectric structure includes a first ferroelectric layer, a second ferroelectric layer overlying the first ferroelectric layer, and a first inhibition layer disposed between the first and second ferroelectric layers and bordering the second ferroelectric layer. The first inhibition layer is a different material than the first and second ferroelectric layers.Type: ApplicationFiled: January 5, 2023Publication date: May 2, 2024Inventors: Po-Ting Lin, Yu-Ming Hsiang, Wei-Chih Wen, Yin-Hao Wu, Wu-Wei Tsai, Hai-Ching Chen, Yu-Ming Lin, Chung-Te Lin
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Publication number: 20240008287Abstract: A memory device and a manufacturing method thereof is described. The memory device includes a transistor structure over a substrate and a ferroelectric capacitor structure electrically connected with the transistor structure. The ferroelectric capacitor structure includes a top electrode layer, a bottom electrode layer and a ferroelectric stack sandwiched there-between. The ferroelectric stack includes a first ferroelectric layer, a first stabilizing layer, and one of a second ferroelectric layer or a second stabilizing layer. Materials of the first stabilizing layer and a second stabilizing layer include a metal oxide material.Type: ApplicationFiled: July 4, 2022Publication date: January 4, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Po-Ting Lin, Wei-Chih Wen, Kai-Wen Cheng, Wu-Wei Tsai, Yu-Ming Hsiang, Yan-Yi Chen, Hai-Ching Chen, Yu-Ming Lin, Chung-Te Lin
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Publication number: 20230389340Abstract: A method of forming a semiconductor memory device includes: forming a stack structure on a substrate, the stack structure including a plurality of dielectric layers and a plurality of sacrificial layers alternatingly stacked in a Z direction substantially perpendicular to the substrate; forming a plurality of source/drain trenches in the stack structure; conformally forming a barrier layer in the source/drain trenches, and then filling the source/drain trenches with a plurality of sacrificial segments; forming a protection layer over the stack structure to cover the barrier layer and the sacrificial segments; removing the sacrificial layers of the stack structure to form a plurality of spaces among the dielectric layers; forming a plurality of conductive layers in the spaces; sequentially removing the protection layer, the sacrificial segments and the barrier layer; and forming a plurality of memory structures in the source/drain trenches.Type: ApplicationFiled: May 26, 2022Publication date: November 30, 2023Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Wei-Chih WEN, Yu-Wei JIANG, Han-Jong CHIA
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Publication number: 20230389447Abstract: A method of forming a semiconductor device includes providing a bottom electrode; a magnetic tunneling junction (MTJ) element over the bottom electrode; a top electrode over the MTJ element; and a sidewall spacer abutting the MTJ element, wherein at least one of the bottom electrode, the top electrode, and the sidewall spacer includes a magnetic material.Type: ApplicationFiled: August 9, 2023Publication date: November 30, 2023Inventors: Tsung-Chieh Hsiao, Po-Sheng Lu, Wei-Chih Wen, Liang-Wei Wang, Yu-Jen Wang, Dian-Hau Chen, Yen-Ming Chen
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Publication number: 20230380182Abstract: In a method of manufacturing a semiconductor device, a magnetic random access memory (MRAM) cell structure is formed. The MRAM cell structure includes a bottom electrode, a magnetic tunnel junction (MTJ) stack and a top electrode. A first insulating cover layer is formed over the MRAM cell structure. A second insulating cover layer is formed over the first insulating cover layer. An interlayer dielectric (ILD) layer is formed. A contact opening in the ILD layer is formed, thereby exposing the second insulating cover layer. A part of the second insulating cover layer and a part of the first insulating cover layer are removed, thereby exposing the top electrode. A conductive layer is formed in the opening contacting the top electrode.Type: ApplicationFiled: July 31, 2023Publication date: November 23, 2023Inventors: Hui-Hsien WEI, Chung-Te LIN, Han-Ting TSAI, Tai-Yen PENG, Yu-Teng DAI, Chien-Min LEE, Sheng-Chih LAI, Wei-Chih WEN
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Patent number: 11805658Abstract: In a method of manufacturing a semiconductor device, a magnetic random access memory (MRAM) cell structure is formed. The MRAM cell structure includes a bottom electrode, a magnetic tunnel junction (MTJ) stack and a top electrode. A first insulating cover layer is formed over the MRAM cell structure. A second insulating cover layer is formed over the first insulating cover layer. An interlayer dielectric (ILD) layer is formed. A contact opening in the ILD layer is formed, thereby exposing the second insulating cover layer. A part of the second insulating cover layer and a part of the first insulating cover layer are removed, thereby exposing the top electrode. A conductive layer is formed in the opening contacting the top electrode.Type: GrantFiled: November 29, 2021Date of Patent: October 31, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hui-Hsien Wei, Chung-Te Lin, Han-Ting Tsai, Tai-Yen Peng, Yu-Teng Dai, Chien-Min Lee, Sheng-Chih Lai, Wei-Chih Wen
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Publication number: 20230276712Abstract: A device includes a resistance switching layer, a capping layer, a top electrode, a first spacer, and a second spacer. The resistance switching layer is over a substrate. The capping layer is over the resistance switching layer. The top electrode is over the capping layer. The first spacer lines the resistance switching layer and the capping layer. The second spacer lines the first spacer. The capping layer is in contact with the top electrode, the first spacer, and the second spacer.Type: ApplicationFiled: May 4, 2023Publication date: August 31, 2023Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tai-Yen PENG, Hui-Hsien WEI, Wei-Chih WEN, Pin-Ren DAI, Chien-Min LEE, Sheng-Chih LAI, Han-Ting TSAI, Chung-Te LIN