Patents by Inventor Lin-Chen Lu
Lin-Chen 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: 20250357193Abstract: A semiconductor device structure and methods of forming the same are described. In some embodiments, the structure includes a device and a first dielectric layer disposed over the device. An airgap is located in the first dielectric layer. The structure further includes a conductive feature disposed in the first dielectric layer, and the first dielectric layer includes a first portion disposed between the airgap and a first side of the conductive feature and a second portion disposed adjacent a second side of the conductive feature opposite the first side. The first portion has a first nitrogen concentration, and the second portion has a second nitrogen concentration substantially less than the first nitrogen concentration.Type: ApplicationFiled: July 29, 2025Publication date: November 20, 2025Inventors: Lin-Chen Lu, Tsung-Han Tsai
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Patent number: 12476137Abstract: A semiconductor device structure and methods of forming the same are described. In some embodiments, the structure includes a device and a first dielectric layer disposed over the device. An airgap is located in the first dielectric layer. The structure further includes a conductive feature disposed in the first dielectric layer, and the first dielectric layer includes a first portion disposed between the airgap and a first side of the conductive feature and a second portion disposed adjacent a second side of the conductive feature opposite the first side. The first portion has a first nitrogen concentration, and the second portion has a second nitrogen concentration substantially less than the first nitrogen concentration.Type: GrantFiled: August 17, 2022Date of Patent: November 18, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Lin-Chen Lu, Tsung-Han Tsai
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Publication number: 20240063126Abstract: A semiconductor device structure and methods of forming the same are described. In some embodiments, the structure includes a device and a first dielectric layer disposed over the device. An airgap is located in the first dielectric layer. The structure further includes a conductive feature disposed in the first dielectric layer, and the first dielectric layer includes a first portion disposed between the airgap and a first side of the conductive feature and a second portion disposed adjacent a second side of the conductive feature opposite the first side. The first portion has a first nitrogen concentration, and the second portion has a second nitrogen concentration substantially less than the first nitrogen concentration.Type: ApplicationFiled: August 17, 2022Publication date: February 22, 2024Inventors: Lin-Chen Lu, Tsung-Han Tsai
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Patent number: 11855137Abstract: This disclosure provides for robust isolation across the SOI structure. In contrast to forming a charge trap layer in specific areas on the structure, a charge trap layer may be built across the insulating/substrate interface. The charge trap layer may be an implantation layer formed throughout and below the insulation layer. Devices built on this SOI structure have reduced cross-talk between the devices. Due to the uniform structure, isolation is robust across the structure and not confined to certain areas. Additionally, deep trench implantation is not required to form the structure, eliminating cost. The semiconductor-on-insulator substrate may include an active silicon layer over an oxide layer. The oxide layer may be over a charge trap layer. The charge trap layer may be over a silicon substrate.Type: GrantFiled: February 4, 2022Date of Patent: December 26, 2023Inventors: Lin-Chen Lu, Gulbagh Singh, Tsung-Han Tsai, Po-Jen Wang
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Publication number: 20230387197Abstract: This disclosure provides for robust isolation across the SOI structure. In contrast to forming a charge trap layer in specific areas on the structure, a charge trap layer may be built across the insulating/substrate interface. The charge trap layer may be an implantation layer formed throughout and below the insulation layer. Devices built on this SOI structure have reduced cross-talk between the devices. Due to the uniform structure, isolation is robust across the structure and not confined to certain areas. Additionally, deep trench implantation is not required to form the structure, eliminating cost. The semiconductor-on-insulator substrate may include an active silicon layer over an oxide layer. The oxide layer may be over a charge trap layer. The charge trap layer may be over a silicon substrate.Type: ApplicationFiled: August 10, 2023Publication date: November 30, 2023Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Lin-Chen Lu, Gulbagh Singh, Tsung-Han Tsai, Po-Jen Wang
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Publication number: 20220157935Abstract: This disclosure provides for robust isolation across the SOI structure. In contrast to forming a charge trap layer in specific areas on the structure, a charge trap layer may be built across the insulating/substrate interface. The charge trap layer may be an implantation layer formed throughout and below the insulation layer. Devices built on this SOI structure have reduced cross-talk between the devices. Due to the uniform structure, isolation is robust across the structure and not confined to certain areas. Additionally, deep trench implantation is not required to form the structure, eliminating cost. The semiconductor-on-insulator substrate may include an active silicon layer over an oxide layer. The oxide layer may be over a charge trap layer. The charge trap layer may be over a silicon substrate.Type: ApplicationFiled: February 4, 2022Publication date: May 19, 2022Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Lin-Chen Lu, Gulbagh Singh, Tsung-Han Tsai, Po-Jen Wang
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Patent number: 11257902Abstract: This disclosure provides for robust isolation across the SOI structure. In contrast to forming a charge trap layer in specific areas on the structure, a charge trap layer may be built across the insulating/substrate interface. The charge trap layer may be an implantation layer formed throughout and below the insulation layer. Devices built on this SOI structure have reduced cross-talk between the devices. Due to the uniform structure, isolation is robust across the structure and not confined to certain areas. Additionally, deep trench implantation is not required to form the structure, eliminating cost. The semiconductor-on-insulator substrate may include an active silicon layer over an oxide layer. The oxide layer may be over a charge trap layer. The charge trap layer may be over a silicon substrate.Type: GrantFiled: May 28, 2020Date of Patent: February 22, 2022Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Lin-Chen Lu, Gulbagh Singh, Tsung-Han Tsai, Po-Jen Wang
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Publication number: 20210376070Abstract: This disclosure provides for robust isolation across the SOI structure. In contrast to forming a charge trap layer in specific areas on the structure, a charge trap layer may be built across the insulating/substrate interface. The charge trap layer may be an implantation layer formed throughout and below the insulation layer. Devices built on this SOI structure have reduced cross-talk between the devices. Due to the uniform structure, isolation is robust across the structure and not confined to certain areas. Additionally, deep trench implantation is not required to form the structure, eliminating cost. The semiconductor-on-insulator substrate may include an active silicon layer over an oxide layer. The oxide layer may be over a charge trap layer. The charge trap layer may be over a silicon substrate.Type: ApplicationFiled: May 28, 2020Publication date: December 2, 2021Applicant: Taiwan Semiconductor Manufacturing Company LimitedInventors: Lin-Chen Lu, Gulbagh Singh, Tsung-Han Tsai, Po-Jen Wang
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Publication number: 20180190662Abstract: A method of forming a bit line gate structure of a dynamic random access memory (DRAM) includes the following. A hard mask layer is formed on a metal stack by a chemical vapor deposition process importing nitrogen (N2) gases and then importing amonia (NH3) gases. The present invention also provides a bit line gate structure of a dynamic random access memory (DRAM) including a metal stack and a hard mask. The metal stack includes a polysilicon layer, a titanium layer, a titanium nitride layer, a first tungsten nitride layer, a tungsten layer and a second tungsten nitride layer stacked from bottom to top. The hard mask is disposed on the metal stack.Type: ApplicationFiled: December 27, 2017Publication date: July 5, 2018Inventors: Tzu-Chin Wu, Wei-Hsin Liu, Yi-Wei Chen, Mei-Ling Chen, Chia-Lung Chang, Ching-Hsiang Chang, Jui-Min Lee, Tsun-Min Cheng, Lin-Chen Lu, Shih-Fang Tzou, Kai-Jiun Chang, Chih-Chieh Tsai, Tzu-Chieh Chen, Chia-Chen Wu