Patents by Inventor Chun-Feng Nieh

Chun-Feng Nieh 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).

  • Patent number: 11450757
    Abstract: A finFET device and methods of forming a finFET device are provided. The method includes depositing a dummy gate over and along sidewalls of a fin extending upwards from a semiconductor substrate, forming a first gate spacer along a sidewall of the dummy gate, and plasma-doping the first gate spacer with carbon to form a carbon-doped gate spacer. The method further includes forming a source/drain region adjacent a channel region of the fin and diffusing carbon from the carbon-doped gate spacer into a first region of the fin to provide a first carbon-doped region. The first carbon-doped region is disposed between at least a portion of the source/drain region and the channel region of the fin.
    Type: Grant
    Filed: September 6, 2020
    Date of Patent: September 20, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu-Chang Lin, Chun-Feng Nieh, Huicheng Chang, Wei-Ting Chien, Chih-Pin Tsao, Hou-Ju Li, Tien-Shun Chang
  • Publication number: 20220262644
    Abstract: A manufacturing method of a semiconductor device, comprises the following steps: providing a semiconductor substrate; forming a dummy insulation layer and a dummy electrode sequentially stacked on the semiconductor substrate; forming spacers on sidewalls of the dummy electrode; removing the dummy electrode to exposes inner sidewalls of the spacers; and performing an ion implantation process to the inner sidewalls of the spacers and the dummy insulation layer.
    Type: Application
    Filed: May 6, 2022
    Publication date: August 18, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11367621
    Abstract: A manufacturing method of a semiconductor device, comprises the following steps: providing a semiconductor substrate; forming a dummy insulation layer and a dummy electrode sequentially stacked on the semiconductor substrate; forming spacers on sidewalls of the dummy electrode; removing the dummy electrode to exposes inner sidewalls of the spacers; and performing an ion implantation process to the inner sidewalls of the spacers and the dummy insulation layer.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: June 21, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11361977
    Abstract: A semiconductor device and method of manufacture are provided. In some embodiments a divergent ion beam is utilized to implant ions into a capping layer, wherein the capping layer is located over a first metal layer, a dielectric layer, and an interfacial layer over a semiconductor fin. The ions are then driven from the capping layer into one or more of the first metal layer, the dielectric layer, and the interfacial layer.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: June 14, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsan-Chun Wang, Chun-Feng Nieh
  • Patent number: 11348835
    Abstract: A nanoFET transistor includes doped channel junctions at either end of a channel region for one or more nanosheets of the nanoFET transistor. The channel junctions are formed by a iterative recessing and implanting process which is performed as recesses are made for the source/drain regions. The implanted doped channel junctions can be controlled to achieve a desired lateral straggling of the doped channel junctions.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: May 31, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yu-Chang Lin, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Patent number: 11348792
    Abstract: A method of forming a semiconductor device includes performing a first implantation process on a semiconductor substrate to form a deep p-well region, performing a second implantation process on the semiconductor substrate with a diffusion-retarding element to form a co-implantation region, and performing a third implantation process on the semiconductor substrate to form a shallow p-well region over the deep p-well region. The co-implantation region is spaced apart from a top surface of the semiconductor substrate by a portion of the shallow p-well region, and the deep-well region and the shallow p-well region are joined with each other. An n-type Fin Field-Effect Transistor (FinFET) is formed, with the deep p-well region and the shallow p-well region acting as a well region of the n-type FinFET.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: May 31, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sih-Jie Liu, Chun-Feng Nieh, Huicheng Chang
  • Publication number: 20220123111
    Abstract: A method of forming a semiconductor device includes implanting dopants of a first conductivity type into a semiconductor substrate to form a first well, epitaxially growing a channel layer over the semiconductor substrate, forming a fin from the second semiconductor material, and forming a gate structure over a channel region of the fin. The semiconductor substrate includes a first semiconductor material. Implanting the dopants may be performed at a temperature in a range of 150° C. to 500° C. The channel layer may include a second semiconductor material. The channel layer may be doped with dopants of the first conductivity type.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 21, 2022
    Inventors: Bau-Ming Wang, Che-Fu Chiu, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220059394
    Abstract: A method of transferring semiconductor wafers and a semiconductor wafer support device including lift pins having a first end configured to contact a backside surface of the semiconductor wafer and at least one stress reduction feature. The stress reduction feature may be configured to reduce contact stress between the lift pins and the wafer.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Inventors: Sih-Jie LIU, Che-Fu CHIU, Bau-Ming WANG, Chun-Feng NIEH, Huicheng CHANG, Yee-Chia YEO
  • Publication number: 20220037465
    Abstract: A nanoFET transistor includes doped channel junctions at either end of a channel region for one or more nanosheets of the nanoFET transistor. The channel junctions are formed by a iterative recessing and implanting process which is performed as recesses are made for the source/drain regions. The implanted doped channel junctions can be controlled to achieve a desired lateral straggling of the doped channel junctions.
    Type: Application
    Filed: December 11, 2020
    Publication date: February 3, 2022
    Inventors: Yu-Chang Lin, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20220028707
    Abstract: Embodiments of an ion cryo-implantation process utilize a post implantation heating stage to heat the implanted wafer while under the heavy vacuum used during cryo-implantation. The implanted wafer is then transferred to load locks which are held at a lesser vacuum than the heavy vacuum.
    Type: Application
    Filed: July 21, 2020
    Publication date: January 27, 2022
    Inventors: Yu-Chang Lin, Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20210391182
    Abstract: A manufacturing method of a semiconductor device, comprises the following steps: providing a semiconductor substrate; forming a dummy insulation layer and a dummy electrode sequentially stacked on the semiconductor substrate; forming spacers on sidewalls of the dummy electrode; removing the dummy electrode to exposes inner sidewalls of the spacers; and performing an ion implantation process to the inner sidewalls of the spacers and the dummy insulation layer.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 16, 2021
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20210375687
    Abstract: A method includes forming a source/drain region in a semiconductor fin; after forming the source/drain region, implanting first impurities into the source/drain region; and after implanting the first impurities, implanting second impurities into the source/drain region. The first impurities have a lower formation enthalpy than the second impurities. The method further includes after implanting the second impurities, annealing the source/drain region.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Yu-Chang Lin, Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang, Yee-Chia Yeo
  • Publication number: 20210367038
    Abstract: A FinFET is provided including a channel region containing a constituent element and excess atoms, the constituent element belonging to a group of the periodic table of elements, wherein said excess atoms are nitrogen, or belong to said group of the periodic table of elements, and a concentration of said excess atoms in the channel region is in the range between about 1019 cm?3 and about 1020 cm?3.
    Type: Application
    Filed: August 4, 2021
    Publication date: November 25, 2021
    Inventors: Yu-Chang Lin, Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang
  • Publication number: 20210328044
    Abstract: A semiconductor device, and a method of manufacturing, is provided. A dummy gate is formed on a semiconductor substrate. An interlayer dielectric (ILD) is formed over the semiconductor fin. A dopant is implanted into the ILD. The dummy gate is removed and an anneal is performed on the ILD. The implantation and the anneal lead to an enhancement of channel resistance by a reduction in interlayer dielectric thickness and to an enlargement of critical dimensions of a metal gate.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Yu-Chang Lin, Tien-Shun Chang, Szu-Ying Chen, Chun-Feng Nieh, Sen-Hong Syue, Huicheng Chang
  • Publication number: 20210313456
    Abstract: In a method for manufacturing a semiconductor device, fin structures each having an upper portion and a lower portion, are formed. The lower portion is embedded in an isolation insulating layer disposed over a substrate and the upper portion protrudes the isolation insulating layer. A gate dielectric layer is formed over the upper portion of each of the fin structures. A conductive layer is formed over the gate dielectric layer. A cap layer is formed over the conductive layer. An ion implantation operation is performed on the fin structures with the cap layer. The ion implantation operation is performed multiple times using different implantation angles to introduce ions into one side surface of each of the fin structures.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Tsan-Chun WANG, Chun-Feng NIEH, Chiao-Ting TAI
  • Patent number: 11133415
    Abstract: An embodiment is a method of manufacturing a semiconductor device. The method includes forming a fin on a substrate. A gate structure is formed over the fin. A recess is formed in the fin proximate the gate structure. A gradient doped region is formed in the fin with a p-type dopant. The gradient doped region extends from a bottom surface of the recess to a vertical depth below the recess in the fin. A source/drain region is formed in the recess and on the gradient doped regions.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: September 28, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jyun-Hao Lin, Chun-Feng Nieh, Yu-Chang Lin, Huicheng Chang
  • Patent number: 11127817
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a semiconductor structure over a semiconductor substrate. The method also includes implanting carbon into the semiconductor structure. The method further includes implanting gallium into the semiconductor structure. In addition, the method includes heating the semiconductor structure after the implanting of carbon and gallium.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: September 21, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tsan-Chun Wang, Chiao-Ting Tai, Che-Fu Chiu, Chun-Feng Nieh
  • Publication number: 20210272850
    Abstract: A method for fabricating a semiconductor device includes forming a fin extending along a first direction on a semiconductor substrate and forming a sacrificial gate electrode structure extending along a second direction substantially perpendicular to the first direction over the fin. The sacrificial gate electrode structure comprises a sacrificial gate dielectric layer and a sacrificial gate electrode layer disposed over the sacrificial gate dielectric layer. Opposing gate sidewall spacers are formed extending along the second direction, on opposing sides of the sacrificial gate electrode layer. The sacrificial gate electrode layer is removed to form a gate space. Fluorine is implanted into the gate sidewall spacers after removing the gate electrode layer by performing a first fluorine implantation. The sacrificial gate dielectric layer is removed and a high-k gate dielectric layer is formed in the gate space.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Inventors: Tsan-Chun WANG, Chun-Feng NIEH, Chiao-Ting TAI
  • Patent number: 11088249
    Abstract: A FinFET is provided including a channel region containing a constituent element and excess atoms, the constituent element belonging to a group of the periodic table of elements, wherein said excess atoms are nitrogen, or belong to said group of the periodic table of elements, and a concentration of said excess atoms in the channel region is in the range between about 1019 cm?3 and about 1020 cm?3.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 10, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chang Lin, Tien-Shun Chang, Chun-Feng Nieh, Huicheng Chang
  • Patent number: 11056573
    Abstract: A semiconductor device, and a method of manufacturing, is provided. A dummy gate is formed on a semiconductor substrate. An interlayer dielectric (ILD) is formed over the semiconductor fin. A dopant is implanted into the ILD. The dummy gate is removed and an anneal is performed on the ILD. The implantation and the anneal lead to an enhancement of channel resistance by a reduction in interlayer dielectric thickness and to an enlargement of critical dimensions of a metal gate.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 6, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chang Lin, Tien-Shun Chang, Szu-Ying Chen, Chun-Feng Nieh, Sen-Hong Syue, Huicheng Chang