Patents by Inventor Hongfa Luan
Hongfa Luan 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: 12183581Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: GrantFiled: July 25, 2023Date of Patent: December 31, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Publication number: 20230386847Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: ApplicationFiled: July 25, 2023Publication date: November 30, 2023Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Patent number: 11776814Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: GrantFiled: March 15, 2021Date of Patent: October 3, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Publication number: 20210202255Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: ApplicationFiled: March 15, 2021Publication date: July 1, 2021Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Patent number: 10950447Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: GrantFiled: June 22, 2020Date of Patent: March 16, 2021Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Publication number: 20200321216Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Patent number: 10714348Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: GrantFiled: September 12, 2019Date of Patent: July 14, 2020Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Publication number: 20200013623Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: ApplicationFiled: September 12, 2019Publication date: January 9, 2020Inventors: Hongfa Luan, Yi-Fan Chen, Chun-Yen Peng, Cheng-Po Chau, Wen-Yu Ku, Huicheng Chang
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Patent number: 10504735Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: GrantFiled: April 13, 2018Date of Patent: December 10, 2019Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hongfa Luan, Huicheng Chang, Cheng-Po Chau, Wen-Yu Ku, Yi-Fan Chen, Chun-Yen Peng
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Patent number: 10269900Abstract: Presented herein is a device including an insulator layer disposed over a substrate. An adhesion layer is disposed over the insulator layer and includes a semiconductor oxide, the semiconductor oxide includes a compound of a semiconductor element and oxygen. A semiconductor film layer is over the adhesion layer, the semiconductor film layer being a material that includes the semiconductor element, the semiconductor film layer having a different composition than the adhesion layer. Bonds at an interface between the insulator layer and the adhesion layer comprise oxygen-hydrogen bonds and oxygen-semiconductor element bonds. An interface between a dummy gate and a gate dielectric layer of a gate-last transistor structure may be similarly formed.Type: GrantFiled: May 22, 2017Date of Patent: April 23, 2019Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chi-Ming Liao, Chun-Heng Chen, Sheng-Po Wu, Ming-Feng Hsieh, Hongfa Luan
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Publication number: 20190103277Abstract: Embodiment described herein provide a thermal treatment process following a high-pressure anneal process to keep hydrogen at an interface between a channel region and a gate dielectric layer in a field effect transistor while removing hydrogen from the bulk portion of the gate dielectric layer. The thermal treatment process can reduce the amount of threshold voltage shift caused by a high-pressure anneal. The high-pressure anneal and the thermal treatment process may be performed any time after formation of the gate dielectric layer, thus, causing no disruption to the existing process flow.Type: ApplicationFiled: April 13, 2018Publication date: April 4, 2019Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hongfa LUAN, Huicheng CHANG, Cheng-Po CHAU, Wen-Yu KU, Yi-Fan CHEN, Chun-Yen PENG
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Publication number: 20170323939Abstract: Presented herein is a device including an insulator layer disposed over a substrate. An adhesion layer is disposed over the insulator layer and includes a semiconductor oxide, the semiconductor oxide includes a compound of a semiconductor element and oxygen. A semiconductor film layer is over the adhesion layer, the semiconductor film layer being a material that includes the semiconductor element, the semiconductor film layer having a different composition than the adhesion layer. Bonds at an interface between the insulator layer and the adhesion layer comprise oxygen-hydrogen bonds and oxygen-semiconductor element bonds. An interface between a dummy gate and a gate dielectric layer of a gate-last transistor structure may be similarly formed.Type: ApplicationFiled: May 22, 2017Publication date: November 9, 2017Inventors: Chi-Ming Liao, Chun-Heng Chen, Sheng-Po Wu, Ming-Feng Hsieh, Hongfa Luan
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Patent number: 9659962Abstract: Semiconductor devices and methods of manufacture thereof are disclosed. A complimentary metal oxide semiconductor (CMOS) device includes a PMOS transistor having at least two first gate electrodes comprising a first parameter, and an NMOS transistor having at least two second gate electrodes comprising a second parameter, wherein the second parameter is different than the first parameter. The first parameter and the second parameter may comprise the thickness or the dopant profile of the gate electrode materials of the PMOS and NMOS transistors. The first and second parameter of the at least two first gate electrodes and the at least two second gate electrodes establish the work function of the PMOS and NMOS transistors, respectively.Type: GrantFiled: March 20, 2014Date of Patent: May 23, 2017Assignee: Infineon Technologies AGInventors: Thomas Schulz, Hongfa Luan
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Patent number: 9660023Abstract: Presented herein is a device including an insulator layer disposed over a substrate. An adhesion layer is disposed over the insulator layer and includes a semiconductor oxide, the semiconductor oxide including a compound of a semiconductor element and oxygen. A semiconductor film layer is over the adhesion layer, the semiconductor film layer being a material including the semiconductor element, the semiconductor film layer having a different composition than the adhesion layer. Bonds at an interface between the insulator layer and the adhesion layer comprise oxygen-hydrogen bonds and oxygen-semiconductor element bonds.Type: GrantFiled: December 16, 2015Date of Patent: May 23, 2017Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chi-Ming Liao, Chun-Heng Chen, Sheng-Po Wu, Ming-Feng Hsieh, Hongfa Luan
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Patent number: 9607826Abstract: Semiconductor device manufacturing methods and methods of forming insulating material layers are disclosed. In one embodiment, a method of forming a composite insulating material layer of a semiconductor device includes providing a workpiece and forming a first sub-layer of the insulating material layer over the workpiece using a first plasma power level. A second sub-layer of the insulating material layer is formed over the first sub-layer of the insulating material layer using a second plasma power level, and the workpiece is annealed.Type: GrantFiled: April 13, 2015Date of Patent: March 28, 2017Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Gin-Chen Huang, Tsai-Fu Hsiao, Ching-Hong Jiang, Neng-Kuo Chen, Hongfa Luan, Sey-Ping Sun, Clement Hsingjen Wann
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Publication number: 20160111492Abstract: Presented herein is a device including an insulator layer disposed over a substrate. An adhesion layer is disposed over the insulator layer and includes a semiconductor oxide, the semiconductor oxide including a compound of a semiconductor element and oxygen. A semiconductor film layer is over the adhesion layer, the semiconductor film layer being a material including the semiconductor element, the semiconductor film layer having a different composition than the adhesion layer. Bonds at an interface between the insulator layer and the adhesion layer comprise oxygen-hydrogen bonds and oxygen-semiconductor element bonds.Type: ApplicationFiled: December 16, 2015Publication date: April 21, 2016Inventors: Chi-Ming Liao, Chun-Heng Chen, Sheng-Po Wu, Ming-Feng Hsieh, Hongfa Luan
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Patent number: 9219120Abstract: Presented herein is a method for forming a semiconductor film using an adhesion layer, comprising providing an oxide layer disposed over a substrate, forming at least one adhesion layer over the oxide layer, and forming a film layer over the at least one adhesion layer in a same process step as the forming the at least one adhesion layer. Forming the at least one adhesion layer further comprises at least forming a first adhesion layer over the oxide layer and forming a second adhesion layer over the first adhesion layer. Forming the first adhesion layer comprises providing the terminating gas at a substantially constant first flow rate, and wherein the forming the second adhesion layer comprises ramping a flow rate of the terminating gas to a zero flow rate from the first flow rate.Type: GrantFiled: October 15, 2013Date of Patent: December 22, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chi-Ming Liao, Chun-Heng Chen, Sheng-Po Wu, Ming-Feng Hsieh, Hongfa Luan
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Patent number: 9153657Abstract: A semiconductor device may include a fin disposed over a workpiece. The fin may include: a first semiconductive material disposed over the workpiece; an oxide of the first semiconductive material disposed over the first semiconductive material; a second conductive material disposed over and spaced apart from the oxide of the first semiconductive material; a first insulating material disposed around and lining the second semiconductive material; a conductive material disposed around the first insulating material; and a second insulating material disposed between the oxide of the first semiconductive material and a portion of the conductive material facing the workpiece, the second insulating material further lining sidewalls of the conductive material.Type: GrantFiled: October 14, 2014Date of Patent: October 6, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chi-Yuan Chen, Teng-Chun Tsai, Kuo-Yin Lin, Wan-Chun Pan, Hsiang-Pi Chang, Shi Ning Ju, Yen-Yu Chen, Hongfa Luan, Kuo-Cheng Ching
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Publication number: 20150221504Abstract: Semiconductor device manufacturing methods and methods of forming insulating material layers are disclosed. In one embodiment, a method of forming a composite insulating material layer of a semiconductor device includes providing a workpiece and forming a first sub-layer of the insulating material layer over the workpiece using a first plasma power level. A second sub-layer of the insulating material layer is formed over the first sub-layer of the insulating material layer using a second plasma power level, and the workpiece is annealed.Type: ApplicationFiled: April 13, 2015Publication date: August 6, 2015Inventors: Gin-Chen Huang, Tsai-Fu Hsiao, Ching-Hong Jiang, Neng-Kuo Chen, Hongfa Luan, Sey-Ping Sung, Clement Hsingjen Wann
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Publication number: 20150102470Abstract: Presented herein is a method for forming a semiconductor film using an adhesion layer, comprising providing an oxide layer disposed over a substrate, forming at least one adhesion layer over the oxide layer, and forming a film layer over the at least one adhesion layer in a same process step as the forming the at least one adhesion layer. Forming the at least one adhesion layer further comprises at least forming a first adhesion layer over the oxide layer and forming a second adhesion layer over the first adhesion layer. Forming the first adhesion layer comprises providing the terminating gas at a substantially constant first flow rate, and wherein the forming the second adhesion layer comprises ramping a flow rate of the terminating gas to a zero flow rate from the first flow rate.Type: ApplicationFiled: October 15, 2013Publication date: April 16, 2015Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chi-Ming Liao, Chun-Heng Chen, Sheng-Po Wu, Ming-Feng Hsieh, Hongfa Luan