Patents by Inventor Tsan-Chun Wang

Tsan-Chun Wang 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).

  • Publication number: 20160218199
    Abstract: A method for manufacturing a semiconductor device includes forming a fin structure having a top surface and side surfaces. A mask layer is disposed over the top surface. A doping support layer is formed to cover part of the fin structure. A first impurity is introduced into a first region of the fin structure covered by the doping support layer, by implanting the first impurity into the doping support layer so that the implanted first impurity is introduced into the first region of the fin structure through the side surfaces.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 28, 2016
    Inventors: Chun Hsiung TSAI, Tsan-Chun WANG
  • Patent number: 9401414
    Abstract: A method of forming a semiconductor device includes forming a NMOS gate structure over a substrate. The method further includes forming an amorphized region in the substrate adjacent to the NMOS gate structure. The method also includes forming a lightly doped source/drain (LDD) region in the amorphized region. The method further includes depositing a stress film over the NMOS gate structure, performing an annealing process, and removing the stress film.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 26, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsan-Chun Wang, Ziwei Fang
  • Publication number: 20160172466
    Abstract: The present disclosure relates to a method of forming a transistor device. In this method, first and second well regions are formed within a semiconductor substrate. The first and second well regions have first and second etch rates, respectively, which are different from one another. Dopants are selectively implanted into the first well region to alter the first etch rate to make the first etch rate substantially equal to the second etch rate. The first, selectively implanted well region and the second well region are etched to form channel recesses having equal recess depths. An epitaxial growth process is performed to form one or more epitaxial layers within the channel recesses.
    Type: Application
    Filed: February 15, 2016
    Publication date: June 16, 2016
    Inventors: Tsan-Chun Wang, Ziwei Fang, Chii-Horng Li, Tze-Liang Lee, Chao-Cheng Chen, Syun-Ming Jang
  • Patent number: 9324865
    Abstract: A semiconductor device having dislocations and a method of fabricating the semiconductor device is disclosed. The exemplary semiconductor device and method for fabricating the semiconductor device enhance carrier mobility. The method includes providing a substrate having an isolation feature therein and two gate stacks overlying the substrate, wherein one of the gate stacks is atop the isolation feature. The method further includes performing a pre-amorphous implantation process on the substrate. The method further includes forming a stress film over the substrate. The method also includes performing an annealing process on the substrate and the stress film.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: April 26, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ziwei Fang, Tsan-Chun Wang, De-Wei Yu
  • Publication number: 20160099150
    Abstract: An embodiment is a method including forming a fin on a substrate, forming a first doped region in a top portion of the fin, the first doped region having a first dopant concentration, and forming a second doped region in a middle and bottom portion of the fin, the second doped region having a second dopant concentration, the second dopant concentration being less than the first dopant concentration.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 7, 2016
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang
  • Publication number: 20160093714
    Abstract: A method for fabricating a semiconductor device using a high-temperature ion implantation process includes providing a substrate including a plurality of fins. In some examples, a mask material is deposited and patterned to expose a group of fins of the plurality of fins and a test structure. By way of example, a first ion implantation may be performed, at a first temperature, through the group of fins and the test structure. Additionally, a second ion implantation may be performed, at a second temperature greater than the first temperature, through the group of fins and the test structure. In various examples, an interstitial cluster is formed within the group of fins and within the test structure. In some embodiments, an anneal process is performed, where the anneal process serves to remove the interstitial cluster from the group of fins and form at least one dislocation loop within the test structure.
    Type: Application
    Filed: September 30, 2014
    Publication date: March 31, 2016
    Inventors: Tsan-Chun Wang, Chun Hsiung Tsai, Ziwei Fang
  • Publication number: 20160071757
    Abstract: Embodiments of a mechanism for forming a shallow trench isolation (STI) structure filled with a flowable dielectric layer are provided. The mechanism involves using one or more low-temperature thermal anneal processes with oxygen sources and one or more microwave anneals to convert a flowable dielectric material to silicon oxide. The low-temperature thermal anneal processes with oxygen sources and the microwave anneals are performed at temperatures below the ranges that could cause significant dopant diffusion, which help dopant profile control for advanced manufacturing technologies. In some embodiments, an implant to generate passages in the upper portion of the flowable dielectric layer is also used in the mechanism.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 10, 2016
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang
  • Patent number: 9281196
    Abstract: The present disclosure relates to a method of forming a transistor device. In this method, first and second well regions are formed within a semiconductor substrate. The first and second well regions have first and second etch rates, respectively, which are different from one another. Dopants are selectively implanted into the first well region to alter the first etch rate to make the first etch rate substantially equal to the second etch rate. The first, selectively implanted well region and the second well region are etched to form channel recesses having equal recess depths. An epitaxial growth process is performed to form one or more epitaxial layers within the channel recesses.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 8, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tsan-Chun Wang, Ziwei Fang, Chii-Horng Li, Tze-Liang Lee, Chao-Cheng Chen, Syun-Ming Jang
  • Publication number: 20160064549
    Abstract: The present disclosure provides a method for fabricating semiconductor device. The method includes forming a first dielectric layer over a substrate, forming a gate structure over a first portion of the first dielectric layer, forming a sidewall spacer over a second portion of the first dielectric layer and on the gate structure, converting the second portion of the first dielectric layer and an exposed third portion of the first dielectric layer to a first portion of a second dielectric layer and a second portion of the second dielectric layer, respectively, removing the second portion of the second dielectric layer and a portion of the substrate to form a recess in the substrate adjacent the sidewall spacer, forming a source/drain (S/D) feature in the recess and removing the gate electrode and the first portion of the first dielectric layer to form a gate trench.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 3, 2016
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang
  • Patent number: 9245982
    Abstract: One embodiment of the instant disclosure provides a method for fabrication of fin devices for an integrated circuit, which comprises: forming a plurality of semiconductor fin structures, the fin structures including sidewalls and tops exposed from conformal masking; performing channel implantation at a tilt angle to form a doped region along the sidewalls and the tops of the fin structures, the fin structures being maintained at an elevated temperature during the channel implantation to prevent amorphization thereof during channel implantation; and forming at least one field effect transistor from the fin structures, the field effect transistor having a threshold voltage that is based on the channel implantation.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: January 26, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Tsan-Chun Wang, Zi-Wei Fang, Tze-Liang Lee
  • Publication number: 20150372144
    Abstract: The present disclosure provides a semiconductor structure. The semiconductor structure includes a fin active region formed on a semiconductor substrate; a channel region of a first type conductivity, defined in the fin active region and having a first carrier concentration; and an anti-punch through (APT) feature of the first type conductivity, wherein the APT feature is formed in the semiconductor substrate, is directly underlying the channel region, and has a second carrier concentration greater than the first carrier concentration.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 24, 2015
    Inventors: Ziwei Fang, Tsan-Chun Wang
  • Publication number: 20150357442
    Abstract: One embodiment of the instant disclosure provides a method for fabrication of fin devices for an integrated circuit, which comprises: forming a plurality of semiconductor fin structures, the fin structures including sidewalls and tops exposed from conformal masking; performing channel implantation at a tilt angle to form a doped region along the sidewalls and the tops of the fin structures, the fin structures being maintained at an elevated temperature during the channel implantation to prevent amorphization thereof during channel implantation; and forming at least one field effect transistor from the fin structures, the field effect transistor having a threshold voltage that is based on the channel implantation.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: TSAN-CHUN WANG, ZI-WEI FANG, TZE-LIANG LEE
  • Patent number: 9184089
    Abstract: Embodiments of a mechanism for forming a shallow trench isolation (STI) structure filled with a flowable dielectric layer are provided. The mechanism involves using one or more low-temperature thermal anneal processes with oxygen sources and one or more microwave anneals to convert a flowable dielectric material to silicon oxide. The low-temperature thermal anneal processes with oxygen sources and the microwave anneals are performed at temperatures below the ranges that could cause significant dopant diffusion, which help dopant profile control for advanced manufacturing technologies. In some embodiments, an implant to generate passages in the upper portion of the flowable dielectric layer is also used in the mechanism.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 10, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang
  • Patent number: 9142650
    Abstract: Methods for fabrication of fin devices for an integrated circuit are provided. Fin structures are formed in a semiconductor material, where the fin structures include sidewalls and tops. Dopant implantation is performed at a tilt angle to form a doped region along the sidewalls and the tops of the fin structures, where the semiconductor material is maintained at an elevated temperature during the dopant implantation. The elevated temperature prevents amorphization of the fin structures during the dopant implantation. A field effect transistor is formed from the fin structures. The field effect transistor has a threshold voltage that is based on the dopant implantation.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: September 22, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Tsan-Chun Wang, Zi-Wei Fang, Tze-Liang Lee
  • Patent number: 9117844
    Abstract: A method of manufacturing a semiconductor device includes providing a substrate having a gate stack, and performing a pre-amorphous implantation (PAI) process to form an amorphized region on the substrate. The method also includes performing an annealing process to recrystallize the amorphized region after the stress film is formed. The annealing process includes a preheat at a temperature in a range from about 400° C. to about 550° C. and an annealing temperature equal to or greater than about 900° C., and the annealing process recrystallizes the amorphized region.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: August 25, 2015
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang
  • Patent number: 9117745
    Abstract: A method of manufacturing a semiconductor device includes performing a pre-amorphous implantation (PAI) process to form an amorphized region on a substrate. The method also includes forming a stress film over the substrate, and performing an annealing process to recrystallize the amorphized region after the stress film is formed. The method further includes forming a recess region on the substrate. The recess region overlies the recrystallized region. The method additionally includes forming an epitaxial stress-inducing material in the recess region.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: August 25, 2015
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang, Su-Hao Liu, Tsz-Mei Kwok, Chii-Ming Wu
  • Publication number: 20150187927
    Abstract: The present disclosure relates to a method of forming a transistor device. In this method, first and second well regions are formed within a semiconductor substrate. The first and second well regions have first and second etch rates, respectively, which are different from one another. Dopants are selectively implanted into the first well region to alter the first etch rate to make the first etch rate substantially equal to the second etch rate. The first, selectively implanted well region and the second well region are etched to form channel recesses having equal recess depths. An epitaxial growth process is performed to form one or more epitaxial layers within the channel recesses.
    Type: Application
    Filed: February 7, 2014
    Publication date: July 2, 2015
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tsan-Chun Wang, Ziwei Fang, Chii-Horng Li, Tze-Liang Lee, Chao-Cheng Chen, Syun-Ming Jang
  • Patent number: 9070334
    Abstract: A display device includes a plurality of gate lines, data lines, first external gate tracking lines, and second external gate tracking lines. The first external gate tracking lines are substantially disposed in a border region of a substrate, and electrically connected with corresponding gate lines. The second external gate tracking lines are substantially disposed in the border region of the substrate, and electrically connected with corresponding gate lines. One of the first external gate tracking lines and a corresponding second external gate tracking line at least partially overlap with each other.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: June 30, 2015
    Assignee: AU Optronics Corp.
    Inventors: Yu-Cheng Chen, Tsan-Chun Wang, Wan-Yu Lo
  • Patent number: 9057919
    Abstract: An LCD panel transmits the display data to sub-pixels in a zigzag pattern through a data line. The variation of the feed-through voltages of the sub-pixels may be modified by adjusting the ratios of the channel widths and the channel lengths of the TFTs in the sub-pixels to some predetermined ratios, or by adjusting the compensation capacitance to the coupling capacitance of the TFTs of the sub-pixels.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 16, 2015
    Assignee: AU Optronics Corp.
    Inventors: Chun-Chi Lai, Ching-Wei Chen, Tsan-Chun Wang, Kuo-Hsing Cheng, Yu-Cheng Chen
  • Patent number: 9029226
    Abstract: The embodiments of mechanisms for doping lightly doped drain (LDD) regions by driving dopants from highly doped source and drain regions by annealing for finFET devices are provided. The mechanisms overcome the limitation by shadowing effects of ion implantation for advanced finFET devices. The highly doped source and drain regions are formed by epitaxial growing one or more doped silicon-containing materials from recesses formed in the fins. The dopants are then driven into the LDD regions by advanced annealing process, which can achieve targeted dopant levels and profiles in the LDD regions.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: May 12, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun Hsiung Tsai, Tsan-Chun Wang, Su-Hao Liu