Patents by Inventor Chien-Tai Chan

Chien-Tai Chan 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: 8895383
    Abstract: A system and method for manufacturing multiple-gate semiconductor devices is disclosed. An embodiment comprises multiple fins, wherein intra-fin isolation regions extend into the substrate less than inter-fin isolation regions. Regions of the multiple fins not covered by the gate stack are removed and source/drain regions are formed from the substrate so as to avoid the formation of voids between the fins in the source/drain region.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: November 25, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tung Ying Lee, Li-Wen Weng, Chien-Tai Chan, Da-Wen Lin, Hsien-Chin Lin
  • Patent number: 8884341
    Abstract: An integrated circuit includes a gate electrode disposed over a substrate. A source/drain (S/D) region is disposed adjacent to the gate electrode. The S/D region includes a diffusion barrier structure disposed in a recess of the substrate. The diffusion barrier structure includes a first portion and a second portion. The first portion is adjacent to the gate electrode. The second portion is distant from the gate electrode. An N-type doped silicon-containing structure is disposed over the diffusion barrier structure. The first portion of the diffusion barrier structure is configured to partially prevent N-type dopants of the N-type doped silicon-containing structure from diffusing into the substrate. The second portion of the diffusion barrier structure is configured to substantially completely prevent N-type dopants of the N-type doped silicon-containing structure from diffusing into the substrate.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: November 11, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Su-Hao Liu, Chien-Tai Chan, King-Yuen Wong, Chien-Chang Su
  • Patent number: 8785286
    Abstract: A method of forming an integrated circuit includes providing a semiconductor wafer including a semiconductor fin dispatched on a surface of the semiconductor wafer; forming a dopant-rich layer having an impurity on a top surface and sidewalls of the semiconductor fin, wherein the impurity is of n-type or p-type; performing a knock-on implantation to drive the impurity into the semiconductor fin; and removing the dopant-rich layer.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: July 22, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Chien-Tai Chan, Mao-Rong Yeh, Da-Wen Lin
  • Patent number: 8759943
    Abstract: A transistor includes a notched fin covered under a shallow trench isolation layer. One or more notch may be used, the size of which may vary along a lateral direction of the fin. In some embodiments, The notch is formed using anisotropic wet etching that is selective according to silicon orientation. Example wet etchants are tetramethylammonium hydroxide (TMAH) or potassium hydroxide (KOH).
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: June 24, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hung Tseng, Da-Wen Lin, Chien-Tai Chan, Chia-Pin Lin, Li-Wen Weng, An-Shen Chang, Chung-Cheng Wu
  • Patent number: 8703593
    Abstract: A method of forming an integrated circuit includes providing a semiconductor wafer including a semiconductor fin dispatched on a surface of the semiconductor wafer; forming a dopant-rich layer having an impurity on a top surface and sidewalls of the semiconductor fin, wherein the impurity is of n-type or p-type; performing a knock-on implantation to drive the impurity into the semiconductor fin; and removing the dopant-rich layer.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 22, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Chien-Tai Chan, Mao-Rong Yeh, Da-Wen Lin
  • Publication number: 20130280876
    Abstract: A method of forming an integrated circuit includes providing a semiconductor wafer including a semiconductor fin dispatched on a surface of the semiconductor wafer; forming a dopant-rich layer having an impurity on a top surface and sidewalls of the semiconductor fin, wherein the impurity is of n-type or p-type; performing a knock-on implantation to drive the impurity into the semiconductor fin; and removing the dopant-rich layer.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 24, 2013
    Inventors: Chun Hsiung Tsai, Chien-Tai Chan, Mao-Rong Yeh, Da-Wen Lin
  • Patent number: 8426923
    Abstract: A system and method for manufacturing multiple-gate semiconductor devices is disclosed. An embodiment comprises multiple fins, wherein intra-fin isolation regions extend into the substrate less than inter-fin isolation regions. Regions of the multiple fins not covered by the gate stack are removed and source/drain regions are formed from the substrate so as to avoid the formation of voids between the fins in the source/drain region.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 23, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tung Ying Lee, Li-Wen Weng, Chien-Tai Chan, Da-Wen Lin, Hsien-Chin Lin
  • Publication number: 20130043511
    Abstract: An integrated circuit includes a gate electrode disposed over a substrate. A source/drain (S/D) region is disposed adjacent to the gate electrode. The S/D region includes a diffusion barrier structure disposed in a recess of the substrate. The diffusion barrier structure includes a first portion and a second portion. The first portion is adjacent to the gate electrode. The second portion is distant from the gate electrode. An N-type doped silicon-containing structure is disposed over the diffusion barrier structure. The first portion of the diffusion barrier structure is configured to partially prevent N-type dopants of the N-type doped silicon-containing structure from diffusing into the substrate. The second portion of the diffusion barrier structure is configured to substantially completely prevent N-type dopants of the N-type doped silicon-containing structure from diffusing into the substrate.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 21, 2013
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun Hsiung TSAI, Su-Hao LIU, Chien-Tai CHAN, King-Yuen WONG, Chien-Chang SU
  • Patent number: 8357579
    Abstract: A method of forming an integrated circuit includes forming a gate structure over a substrate. Portions of the substrate are removed to form recesses adjacent to the gate structure. A dopant-rich layer having first type dopants is formed on a sidewall and a bottom of each of the recesses. A silicon-containing material structure is formed in each of the recesses. The silicon-containing material structure has second type dopants. The second type dopants are opposite to the first type dopants.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: January 22, 2013
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: King-Yuen Wong, Ming-Lung Cheng, Chien-Tai Chan, Da-Wen Lin, Chung-Cheng Wu
  • Publication number: 20120135575
    Abstract: A method of forming an integrated circuit includes forming a gate structure over a substrate. Portions of the substrate are removed to form recesses adjacent to the gate structure. A dopant-rich layer having first type dopants is formed on a sidewall and a bottom of each of the recesses. A silicon-containing material structure is formed in each of the recesses. The silicon-containing material structure has second type dopants. The second type dopants are opposite to the first type dopants.
    Type: Application
    Filed: March 8, 2011
    Publication date: May 31, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: King-Yuen WONG, Ming-Lung CHENG, Chien-Tai CHAN, Da-Wen LIN, Chung-Cheng WU
  • Patent number: 8187928
    Abstract: A method of forming an integrated circuit includes forming a gate structure over a substrate. A plasma doping (PLAD) process is performed to at least a portion of the substrate that is adjacent to the gate structure. The doped portion of the substrate is annealed in an ambient with an oxygen-containing chemical.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: May 29, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: De-Wei Yu, Chun Hsiung Tsai, Yu-Lien Huang, Chien-Tai Chan, Wen-Sheh Huang
  • Publication number: 20120086053
    Abstract: A transistor includes a notched fin covered under a shallow trench isolation layer. One or more notch may be used, the size of which may vary along a lateral direction of the fin. In some embodiments, The notch is formed using anisotropic wet etching that is selective according to silicon orientation. Example wet etchants are tetramethylammonium hydroxide (TMAH) or potassium hydroxide (KOH).
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Hung TSENG, Da-Wen LIN, Chien-Tai CHAN, Chia-Pin LIN, Li-Wen WENG, An-Shen CHANG, Chung-Cheng WU
  • Publication number: 20120070953
    Abstract: A method of forming an integrated circuit includes forming a gate structure over a substrate. A plasma doping (PLAD) process is performed to at least a portion of the substrate that is adjacent to the gate structure. The doped portion of the substrate is annealed in an ambient with an oxygen-containing chemical.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: De-Wei YU, Chun Hsiung TSAI, Yu-Lien HUANG, Chien-Tai CHAN, Wen-Sheh HUANG
  • Publication number: 20110295539
    Abstract: A method for measuring the intra-die temperature of a wafer with a fast response time is described. The method includes providing a wafer in a thermal process chamber, radiating the wafer in a first predetermined radiation range to heat the wafer to a predetermined temperature range for a predetermined time, receiving the radiation reflected from a die area while the wafer is being heated and detecting reflected radiation having a second predetermined radiation range, and determining a temperature of the die area by a processor being responsive to the detected second predetermined radiation range.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun Hsiung TSAI, Chii-Ming WU, De-Wei YU, Chien-Tai CHAN
  • Publication number: 20110248322
    Abstract: An embodiment is a semiconductor device. The semiconductor device comprises a substrate, an electrode over the substrate, and a piezoelectric layer disposed between the substrate and the electrode. The piezoelectric layer causes a strain in the substrate when an electric field is generated by the electrode.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 13, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: King-Yuen Wong, Chien-Tai Chan, Da-Wen Lin, Chung-Cheng Wu
  • Publication number: 20110227162
    Abstract: A method includes forming first and second fins of a finFET extending above a semiconductor substrate, with a shallow trench isolation (STI) region in between, and a distance between a top surface of the STI region and top surfaces of the first and second fins. First and second fin extensions are provided on top and side surfaces of the first and second fins above the top surface of the STI region. Material is removed from the STI region, to increase the distance between the top surface of the STI region and top surfaces of the first and second fins. A conformal stressor dielectric material is deposited over the fins and STI region. The conformal dielectric stressor material is reflowed, to flow into a space between the first and second fins above a top surface of the STI region, to apply stress to a channel of the finFET.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Pin LIN, Chien-Tai CHAN, Hsien-Chin LIN, Shyue-Shyh LIN
  • Publication number: 20110210393
    Abstract: A method includes forming a first fin and a second fin extending above a semiconductor substrate, with a shallow trench isolation (STI) region between them. A space is defined between the first and second fins above a top surface of the STI region. A first height is defined between the top surface of the STI region and top surfaces of the first and second fins. A flowable dielectric material is deposited into the space. The dielectric material has a top surface above the top surface of the STI region, so as to define a second height between the top surface of the dielectric material and the top surfaces of the first and second fins. The second height is less than the first height. First and second fin extensions are epitaxially formed above the dielectric, on the first and second fins, respectively, after the depositing step.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 1, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hung-Kai Chen, Hsien-Hsin Lin, Chia-Pin Lin, Chien-Tai Chan, Yuan-Ching Peng
  • Publication number: 20110195555
    Abstract: A method of forming an integrated circuit includes providing a semiconductor wafer including a semiconductor fin dispatched on a surface of the semiconductor wafer; forming a dopant-rich layer having an impurity on a top surface and sidewalls of the semiconductor fin, wherein the impurity is of n-type or p-type; performing a knock-on implantation to drive the impurity into the semiconductor fin; and removing the dopant-rich layer.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 11, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Chien-Tai Chan, Mao-Rong Yeh, Da-Wen Lin
  • Patent number: 7994016
    Abstract: A method of forming ultra-shallow p-type lightly doped drain (LDD) regions of a PMOS transistor in a surface of a substrate includes the steps of providing a gaseous mixture of an inert gas, a boron-containing source, and an optional carbon-containing source, wherein the concentration of the gaseous mixture is at least 99.5% dilute with the inert gas and the optional carbon-containing source, if present, forming the gaseous mixture into a plasma, and forming the LDD regions, wherein the forming step includes plasma-doping the boron into the substrate using the plasma. N-type pocket regions are formed in the substrate underneath and adjacent to the LDD regions, wherein for a PMOS transistor having a threshold voltage of 100 mV, the n-type pocket regions include phosphorous impurities at a dopant concentration of less than 6.0×1018 atoms/cm3 or a proportionately lower/higher dopant concentration for a lower/higher threshold voltage.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 9, 2011
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chun-Hsiung Tsai, Chun-Feng Nieh, Da-Wen Lin, Chien-Tai Chan
  • Publication number: 20110127610
    Abstract: A system and method for manufacturing multiple-gate semiconductor devices is disclosed. An embodiment comprises multiple fins, wherein intra-fin isolation regions extend into the substrate less than inter-fin isolation regions. Regions of the multiple fins not covered by the gate stack are removed and source/drain regions are formed from the substrate so as to avoid the formation of voids between the fins in the source/drain region.
    Type: Application
    Filed: June 9, 2010
    Publication date: June 2, 2011
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tung Ying Lee, Li-Wen Weng, Chien-Tai Chan, Da-Wen Lin, Hsien-Chin Lin