Patents by Inventor Chao-Hsiung Wang

Chao-Hsiung 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).

  • Patent number: 9331075
    Abstract: Systems and methods are provided for fabricating semiconductor device structures on a substrate. For example, a substrate including a first region and a second region is provided. One or more first semiconductor device structures are formed on the first region. One or more semiconductor fins are formed on the second region. One or more second semiconductor device structures are formed on the semiconductor fins. A top surface of the semiconductor fins is higher than a top surface of the first semiconductor device structures.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 3, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Patent number: 9318431
    Abstract: An integrated circuit can include a MOM capacitor formed simultaneously with other devices, such as finFETs. A dielectric layer formed on a substrate has a first semiconductor fin therein and a second semiconductor fin therein. Respective top portions of the fins are removed to form respective recesses in the dielectric layer. First and second electrodes are formed in the recesses. The first and second electrodes and the interjacent dielectric layer form a MOM capacitor.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: April 19, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Patent number: 9312354
    Abstract: The disclosure relates to a field effect transistor. An exemplary structure for a field effect transistor comprises a substrate; a source region and a drain region disposed in the substrate; a gate structure over the substrate comprising sidewalls and a top surface, wherein the gate structure interposes the source region and the drain region; a contact etch stop layer (CESL) over at least a portion of the top surface of the gate structure; an interlayer dielectric layer over the CESL; a gate contact extending through the interlayer dielectric layer; and a source contact and a drain contact extending through the interlayer dielectric layer, wherein a first distance between an edge of the source contact and a first corresponding edge of the CESL is about 1 nm to about 10 nm.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: April 12, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Patent number: 9312363
    Abstract: A multiple-fin device includes a substrate and a plurality of fins formed on the substrate. Source and drain regions are formed in the respective fins. A dielectric layer is formed on the substrate. The dielectric layer has a first thickness adjacent one side of a first fin and having a second thickness, different from the first thickness, adjacent an opposite side of the fin. A continuous gate structure is formed overlying the plurality of fins, the continuous gate structure being adjacent a top surface of each fin and at least one sidewall surface of at least one fin. By adjusting the dielectric layer thickness, channel width of the resulting device can be fine-tuned.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 12, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Publication number: 20160099172
    Abstract: A method of forming low-k interconnect structure is disclosed, which comprises: providing at least one protruding structure on a substrate traversing between a first connection region to a second connection region defined thereon; performing anodic oxidation on the substrate having the protruding structure; forming one or more nanowire interconnect in the protruding structure traversing between the first connection region and the second connection region; the nanowire interconnect being surrounded by a dielectric layer formed during the anodic oxidation.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 7, 2016
    Inventors: JENN-GWO HWU, WEI-CHENG TIAN, SAMUEL C. PAN, CHAO-HSIUNG WANG, CHI-WEN LIU
  • Patent number: 9306069
    Abstract: The disclosure relates to a fin field effect transistor (FinFET). An exemplary FinFET comprises a substrate comprising a major surface; a fin structure protruding from the major surface comprising a lower portion comprising a first semiconductor material having a first lattice constant; an upper portion comprising the first semiconductor material, wherein a bottom portion of the upper portion comprises a dopant with a first peak concentration; a middle portion between the lower portion and upper portion, wherein the middle portion comprises a second semiconductor material having a second lattice constant different from the first lattice constant; and an isolation structure surrounding the fin structure, wherein a portion of the isolation structure adjacent to the bottom portion of the upper portion comprises the dopant with a second peak concentration equal to or greater than the first peak concentration.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 5, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Guan-Lin Chen, Chao Hsiung Wang, Chi-Wen Liu
  • Publication number: 20160087103
    Abstract: A fin structure suitable for a FinFET and having a buried insulator layer is disclosed. In an exemplary embodiment, a semiconductor device comprises a substrate with a first semiconductor material and having a fin structure formed thereupon. The fin structure includes a lower region proximate to the substrate, a second semiconductor material disposed on the lower region, a third semiconductor material disposed on the second semiconductor material, and an insulating material selectively disposed on the second semiconductor material such that the insulating material electrically isolates a channel region of the fin structure and further such that the insulating material exerts a strain on the channel region. The semiconductor device further comprises an isolation feature disposed adjacent to the fin structure.
    Type: Application
    Filed: November 23, 2015
    Publication date: March 24, 2016
    Inventors: Kuo-Cheng Ching, Chao-Hsiung Wang, Chi-Wen Liu, Guan-Lin Chen
  • Publication number: 20160079361
    Abstract: The disclosure relates to a semiconductor device. An exemplary structure for a semiconductor device comprises a substrate; a nanowire structure protruding from the substrate comprising a channel region between a source region and a drain region; a pair of silicide regions extending into opposite sides of the source region, wherein each of the pair of silicide regions comprising a vertical portion adjacent to the source region and a horizontal portion adjacent to the substrate; and a metal gate surrounding a portion the channel region.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 17, 2016
    Inventors: Kuo-Cheng Ching, Chi-Wen Liu, Chao-Hsiung Wang
  • Patent number: 9287385
    Abstract: A multiple-fin device includes a substrate and a plurality of fins formed on the substrate. Source and drain regions are formed in the respective fins. A dielectric layer is formed on the substrate. The dielectric layer has a first thickness adjacent one side of a first fin and having a second thickness, different from the first thickness, adjacent an opposite side of the fin. A continuous gate structure is formed overlying the plurality of fins, the continuous gate structure being adjacent a top surface of each fin and at least one sidewall surface of at least one fin. By adjusting the dielectric layer thickness, channel width of the resulting device can be fine-tuned.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: March 15, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Publication number: 20160064287
    Abstract: A method includes providing a first source/drain contact, providing a second source/drain contact, and surrounding the first and second source/drain contacts with a dielectric material layer. The providing a first source/drain contact and the providing a second source/drain contact are performed one after the other.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 3, 2016
    Inventors: CHI-WEN LIU, CHAO-HSIUNG WANG
  • Patent number: 9269632
    Abstract: A semiconductor device and method for fabricating a semiconductor device is disclosed. An exemplary semiconductor device includes a substrate including a fin structure disposed over the substrate. The fin structure includes one or more fins. The semiconductor device further includes an insulation material disposed on the substrate. The semiconductor device further includes a gate structure disposed on a portion of the fin structure and on a portion of the insulation material. The gate structure traverses each fin of the fin structure. The semiconductor device further includes a source and drain feature formed from a material having a continuous and uninterrupted surface area. The source and drain feature includes a surface in a plane that is in direct contact with a surface in a parallel plane of the insulation material, each of the one or more fins of the fin structure, and the gate structure.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: February 23, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Publication number: 20160049396
    Abstract: Systems and methods are provided for fabricating semiconductor device structures on a substrate. For example, a substrate including a first region and a second region is provided. One or more first semiconductor device structures are formed on the first region. One or more semiconductor fins are formed on the second region. One or more second semiconductor device structures are formed on the semiconductor fins. A top surface of the semiconductor fins is higher than a top surface of the first semiconductor device structures.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: CHI-WEN Liu, CHAO-HSIUNG WANG
  • Publication number: 20160035849
    Abstract: The disclosure relates to a semiconductor device. An exemplary structure for a nanowire structure comprises a first semiconductor material having a first lattice constant and a first linear thermal expansion constant; and a second semiconductor material having a second lattice constant and a second linear thermal expansion constant surrounding the first semiconductor material, wherein a ratio of the first lattice constant to the second lattice constant is from 0.98 to 1.02, wherein a ratio of the first linear thermal expansion constant to the second linear thermal expansion constant is greater than 1.2 or less than 0.8.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 4, 2016
    Inventors: Kuo-Cheng Ching, Chi-Wen Liu, Chao-Hsiung Wang
  • Patent number: 9245882
    Abstract: A method includes forming a semiconductor fin, forming a dummy gate on a top surface and sidewalls of the semiconductor fin, and removing the dummy gate to form a recess. The semiconductor fin is exposed to the recess. After the dummy gate is removed, an oxidation is performed on the semiconductor fin to form a condensed germanium-containing fin in the recess, and a silicon oxide layer on a top surface and sidewalls of the condensed germanium-containing fin. The method further includes forming a gate dielectric over the condensed germanium-containing fin, and forming a gate electrode over the gate dielectric.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: January 26, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Zhiqiang Wu, Jiun-Jia Huang, Chao-Hsiung Wang, Chi-Wen Liu
  • Publication number: 20160005656
    Abstract: A method includes forming Shallow Trench Isolation (STI) regions in a semiconductor substrate and a semiconductor strip between the STI regions. The method also include replacing a top portion of the semiconductor strip with a first semiconductor layer and a second semiconductor layer over the first semiconductor layer. The first semiconductor layer has a first germanium percentage higher than a second germanium percentage of the second semiconductor layer. The method also includes recessing the STI regions to form semiconductor fins, forming a gate stack over a middle portion of the semiconductor fin, and forming gate spacers on sidewalls of the gate stack. The method further includes forming fin spacers on sidewalls of an end portion of the semiconductor fin, recessing the end portion of the semiconductor fin, and growing an epitaxial region over the end portion of the semiconductor fin.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Inventors: Kuo-Cheng Ching, Ting-Hung Hsu, Chao-Hsiung Wang, Chi-Wen Liu
  • Publication number: 20150372120
    Abstract: A fin structure of a semiconductor device, such as a fin field effect transistor (FinFET), and a method of manufacture, is provided. In an embodiment, trenches are formed in a substrate, and a liner is formed along sidewalls of the trenches, wherein a region between adjacent trenches define a fin. A dielectric material is formed in the trenches. Portions of the semiconductor material of the fin are replaced with a second semiconductor material and a third semiconductor material, the second semiconductor material having a different lattice constant than the substrate and the third semiconductor material having a different lattice constant than the second semiconductor material. Portions of the second semiconductor material are oxidized.
    Type: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Inventors: Kuo-Cheng Ching, Jiun-Jia Huang, Chao-Hsiung Wang, Chi-Wen Liu
  • Publication number: 20150357445
    Abstract: The present disclosure provides one embodiment of a semiconductor structure. The semiconductor structure includes a semiconductor substrate having a first region and a second region; a first semiconductor mesa formed on the semiconductor substrate within the first region; a second semiconductor mesa formed on the semiconductor substrate within the second region; and a field effect transistor (FET) formed on the semiconductor substrate. The FET includes a first doped feature of a first conductivity type formed in a top portion of the first semiconductor mesa; a second doped feature of a second conductivity type formed in a bottom portion of the first semiconductor mesa, the second semiconductor mesa, and a portion of the semiconductor substrate between the first and second semiconductor mesas; a channel in a middle portion of the first semiconductor mesa and interposed between the source and drain; and a gate formed on sidewall of the first semiconductor mesa.
    Type: Application
    Filed: August 17, 2015
    Publication date: December 10, 2015
    Inventors: Harry-Hak-Lay Chuang, Yi-Ren Chen, Chi-Wen Liu, Chao-Hsiung Wang, Ming Zhu
  • Patent number: 9209252
    Abstract: Systems and methods are provided for generating a semiconductor device on a single semiconductor substrate. A single semiconductor substrate is generated that includes a Silicon material portion and a Germanium material portion. A first set of source/drain contacts is formed from a first metal on the Silicon material portion. The first set of source/drain contacts is annealed with the Silicon material portion at a first temperature. A second set of source/drain contacts is formed from a second metal on the Germanium material portion after heating the semiconductor substrate to the first temperature, and the second set of source/drain contacts is annealed with the Germanium material portion at a second temperature, where the second temperature is less than the first temperature.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: December 8, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chi-Wen Liu, Chao-Hsiung Wang
  • Publication number: 20150340244
    Abstract: Systems and methods are provided for annealing a semiconductor structure. In one embodiment, the method includes providing an energy-converting structure proximate a semiconductor structure, the energy-converting structure comprising a material having a loss tangent larger than that of the semiconductor structure; providing a heat reflecting structure between the semiconductor structure and the energy-converting structure; and providing microwave radiation to the energy-converting structure and the semiconductor structure. The semiconductor structure may include at least one material selected from the group consisting of boron-doped silicon germanium, silicon phosphide, titanium, nickel, silicon nitride, silicon dioxide, silicon carbide, n-type doped silicon, and aluminum capped silicon carbide. The heat reflecting structure may include a material substantially transparent to microwave radiation and having substantial reflectivity with respect to infrared radiation.
    Type: Application
    Filed: August 6, 2015
    Publication date: November 26, 2015
    Inventors: CHUN-HSIUNG TSAI, ZI-WEI FANG, CHAO-HSIUNG WANG
  • Patent number: RE45944
    Abstract: A method for forming a semiconductor device and a device made using the method are provided. In one example, the method includes forming a hard mask layer on a semiconductor substrate and patterning the hard mask layer to form multiple openings. The substrate is etched through the openings to form forming a plurality of trenches separating multiple semiconductor mesas. The trenches are partially filled with a dielectric material. The hard mask layer is removed and multiple-gate features are formed, with each multiple-gate feature being in contact with a top surface and sidewalls of at least one of the semiconductor mesas.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: March 22, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Wei Chen, Tang-Xuang Zhong, Sheng-Da Liu, Chang-Yun Chang, Ping-Kun Wu, Chao-Hsiung Wang, Fu-Liang Yang