Patents by Inventor Wen-Tai Lu

Wen-Tai 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).

  • Patent number: 10269568
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: April 23, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Wen-Tai Lu
  • Patent number: 10103025
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 16, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Wen-Tai Lu
  • Publication number: 20180145074
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Application
    Filed: January 2, 2018
    Publication date: May 24, 2018
    Inventor: Wen-Tai Lu
  • Patent number: 9653581
    Abstract: A semiconductor device is provided. The semiconductor device includes a channel region disposed between a source region and a drain region, a gate structure over the channel region, an interlayer dielectric (ILD) layer proximate the gate structure, an ILD stress layer proximate the top portion of gate structure and over the ILD layer. The gate structure includes a first sidewall, a second sidewall and a top portion. A first stress memorization region is also provided. The first stress memorization region is proximate the top portion of the gate structure. A method of making a semiconductor device is also provided.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 16, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Wen-Tai Lu, Chun-Feng Nieh, Hou-Yu Chen, Yu-Chang Lin
  • Publication number: 20170077095
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventor: Wen-Tai Lu
  • Patent number: 9508714
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: November 29, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Wen-Tai Lu
  • Publication number: 20160141394
    Abstract: A semiconductor device is provided. The semiconductor device includes a channel region disposed between a source region and a drain region, a gate structure over the channel region, an interlayer dielectric (ILD) layer proximate the gate structure, an ILD stress layer proximate the top portion of gate structure and over the ILD layer. The gate structure includes a first sidewall, a second sidewall and a top portion. A first stress memorization region is also provided. The first stress memorization region is proximate the top portion of the gate structure. A method of making a semiconductor device is also provided.
    Type: Application
    Filed: January 26, 2016
    Publication date: May 19, 2016
    Inventors: Wen-Tai Lu, Chun-Feng Nieh, Hou-Yu Chen, Yu-Chang Lin
  • Patent number: 9252271
    Abstract: A semiconductor device is provided. The semiconductor device includes a channel region disposed between a source region and a drain region, a gate structure over the channel region, an interlayer dielectric (ILD) layer proximate the gate structure, an ILD stress layer proximate the top portion of gate structure and over the ILD layer. The gate structure includes a first sidewall, a second sidewall and a top portion. A first stress memorization region is also provided. The first stress memorization region is proximate the top portion of the gate structure. A method of making a semiconductor device is also provided.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: February 2, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wen-Tai Lu, Hou-Yu Chen, Yu-Chang Lin, Chun-Feng Nieh
  • Patent number: 9166044
    Abstract: Embodiments include Multiple Gate Field-Effect Transistors (MuGFETs) and methods of forming them. In an embodiment, a structure includes a substrate, a fin, masking dielectric layer portions, and a raised epitaxial lightly doped source/drain (LDD) region. The substrate includes the fin. The masking dielectric layer portions are along sidewalls of the fin. An upper portion of the fin protrudes from the masking dielectric layer portions. A first spacer is along a sidewall of a gate structure over a channel region of the fin. A second spacer is along the first spacer. The raised epitaxial LDD region is on the upper portion of the fin, and the raised epitaxial LDD region adjoins a sidewall of the first spacer and is disposed under the second spacer. The raised epitaxial LDD region extends from the upper portion of the fin in at least two laterally opposed directions and a vertical direction.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: October 20, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Wen-Tai Lu, Hou-Yu Chen, Shyh-Horng Yang
  • Patent number: 9123564
    Abstract: A semiconductor arrangement is provided. The semiconductor arrangement includes a first semiconductor device. The first semiconductor device includes a first active region having a first doped region and a second doped region over the first doped region. The second doped region includes a first bottom portion and a first sidewall. The first bottom portion includes a first bottom portion inner surface, a first bottom portion outer surface, a first bottom portion height and a first bottom portion width. The first sidewall includes a first sidewall inner surface, a first sidewall outer surface, a first sidewall width and a first sidewall height, the first sidewall height greater than the first bottom portion height. A method of making a semiconductor device is also provided.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: September 1, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Yu-Chang Lin, Wen-Tai Lu, Li-Ting Wang, Chun-Feng Nieh, Hou-Yu Chen, Huicheng Chang
  • Publication number: 20150162330
    Abstract: A semiconductor arrangement is provided. The semiconductor arrangement includes a first semiconductor device. The first semiconductor device includes a first active region having a first doped region and a second doped region over the first doped region. The second doped region includes a first bottom portion and a first sidewall. The first bottom portion includes a first bottom portion inner surface, a first bottom portion outer surface, a first bottom portion height and a first bottom portion width. The first sidewall includes a first sidewall inner surface, a first sidewall outer surface, a first sidewall width and a first sidewall height, the first sidewall height greater than the first bottom portion height. A method of making a semiconductor device is also provided.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 11, 2015
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Yu-Chang Lin, Wen-Tai Lu, Li-Ting Wang, Chun-Feng Nieh, Hou-Yu Chen, Huicheng Chang
  • Publication number: 20150145066
    Abstract: A semiconductor device is provided. The semiconductor device includes a channel region disposed between a source region and a drain region, a gate structure over the channel region, an interlayer dielectric (ILD) layer proximate the gate structure, an ILD stress layer proximate the top portion of gate structure and over the ILD layer. The gate structure includes a first sidewall, a second sidewall and a top portion. A first stress memorization region is also provided. The first stress memorization region is proximate the top portion of the gate structure. A method of making a semiconductor device is also provided.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wen-Tai Lu, Hou-Yu Chen, Yu-Chang Lin, Chun-Feng Nieh
  • Publication number: 20150091086
    Abstract: Embodiments include Multiple Gate Field-Effect Transistors (MuGFETs) and methods of forming them. In an embodiment, a structure includes a substrate, a fin, masking dielectric layer portions, and a raised epitaxial lightly doped source/drain (LDD) region. The substrate includes the fin. The masking dielectric layer portions are along sidewalls of the fin. An upper portion of the fin protrudes from the masking dielectric layer portions. A first spacer is along a sidewall of a gate structure over a channel region of the fin. A second spacer is along the first spacer. The raised epitaxial LDD region is on the upper portion of the fin, and the raised epitaxial LDD region adjoins a sidewall of the first spacer and is disposed under the second spacer. The raised epitaxial LDD region extends from the upper portion of the fin in at least two laterally opposed directions and a vertical direction.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wen-Tai Lu, Hou-Yu Chen, Shyh-Horng Yang
  • Publication number: 20150041923
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventor: Wen-Tai Lu
  • Patent number: 8883570
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: November 11, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Wen-Tai Lu
  • Publication number: 20140008734
    Abstract: A method includes oxidizing a semiconductor fin to form an oxide layer on opposite sidewalls of the semiconductor fin. The semiconductor fin is over a top surface of an isolation region. After the oxidizing, a tilt implantation is performed to implant an impurity into the semiconductor fin. The oxide layer is removed after the tilt implantation.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 9, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Wen-Tai Lu
  • Patent number: 6894352
    Abstract: A method for fabricating a single-electron transistor (SET). A one dimensional channel is formed between source and drain on a silicon-on-insulator substrate, and the separated polysilicon sidewall spacer gates are formed by electron-beam lithographically etching process in a self-aligned manner. Operation of the single-electron transistor with self-aligned polysilicon sidewall spacer gates is achieved by applying external bias to the self-aligned polysilicon sidewall spacer gates to form two potential barriers and a quantum dot capable of storage charges between the two potential barriers. A metal upper gate is finally formed and biased to induce a two-dimensional electron gas (2DEG) and control the energy level of the quantum well.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: May 17, 2005
    Inventors: Shu-Fen Hu, Yung-Chun Wu, Wen-Tai Lu, Shiue-Shin Liu, Tiao-Yuan Huang, Tien-Sheng Chao
  • Publication number: 20040061173
    Abstract: A method for fabricating a single-electron transistor (SET). A one dimensional channel is formed between source and drain on a silicon-on-insulator substrate, and the separated polysilicon sidewall spacer gates are formed by electron-beam lithographically etching process in a self-aligned manner. Operation of the single-electron transistor with self-aligned polysilicon sidewall spacer gates is achieved by applying external bias to the self-aligned polysilicon sidewall spacer gates to form two potential barriers and a quantum dot capable of storage charges between the two potential barriers. A metal upper gate is finally formed and biased to induce a two-dimensional electron gas (2DEG) and control the energy level of the quantum well.
    Type: Application
    Filed: June 25, 2003
    Publication date: April 1, 2004
    Inventors: Shu-Fen Hu, Yung-Chun Wu, Wen-Tai Lu, Shiue-Shin Liu, Tiao-Yuan Huang, Tien-Sheng Chao