Patents by Inventor Zhiqiang Wu

Zhiqiang Wu 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: 9559181
    Abstract: The present disclosure provides a semiconductor device that includes a substrate of a first semiconductor material; a fin feature having a first portion, a second portion and a third portion stacked on the substrate; an isolation feature formed on the substrate and disposed on sides of the fin feature; semiconductor oxide features including a second semiconductor material, disposed on recessed sidewalls of the second portion, defining dented voids overlying the semiconductor oxide features and underlying the third portion; and a gate stack disposed on the fin feature and the isolation feature. The gate stack includes a gate dielectric layer extended into and filling in the dented voids. The first and third portions include the first semiconductor material having a first lattice constant. The second portion includes the second semiconductor material having a second lattice constant different from the first lattice constant.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: January 31, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Chih-Hao Wang, Zhiqiang Wu, Carlos H. Diaz
  • Publication number: 20170025537
    Abstract: Embodiments of the present disclosure include a semiconductor device, a FinFET device, and methods for forming the same. An embodiment is a semiconductor device including a first semiconductor fin extending above a substrate, the first semiconductor fin having a first lattice constant, an isolation region surrounding the first semiconductor fin, and a first source/drain region in the first semiconductor fin, the first source/drain having a second lattice constant different from the first lattice constant. The semiconductor device further includes a first oxide region along a bottom surface of the first source/drain region, the first oxide region extending into the isolation region.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 26, 2017
    Inventors: Kuo-Cheng Ching, Chih-Hao Wang, Ching-Wei Tsai, Zhiqiang Wu, Jean-Pierre Colinge
  • Patent number: 9553150
    Abstract: Some embodiments of the present disclosure relate to a transistor device formed in a semiconductor substrate containing dopant impurities of a first impurity type. The transistor device includes channel composed of a delta-doped layer comprising dopant impurities of the first impurity type, and configured to produce a peak dopant concentration within the channel. The channel further includes a layer of carbon-containing material overlying the delta-doped layer, and configured to prevent back diffusion of dopants from the delta-doped layer and semiconductor substrate. The channel also includes of a layer of substrate material overlying the layer of carbon-containing material, and configured to achieve steep retrograde dopant concentration profile a near a surface of the channel.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: January 24, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Wen-Yuan Chen, Tsung-Hsing Yu, Ken-Ichi Goto, Zhiqiang Wu
  • Patent number: 9548362
    Abstract: An embodiment semiconductor device includes a fin extending upwards from a semiconductor substrate. The fin includes an anti-punch through (APT) layer having APT dopants and a channel region over the APT layer. The channel region is substantially free of APT dopants. The semiconductor device further includes a conductive gate stack on a sidewall and a top surface of the channel region.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: January 17, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Ka-Hing Fung, Zhiqiang Wu
  • Publication number: 20170012046
    Abstract: The present disclosure describes a fin-like field-effect transistor (FinFET). The device includes one or more fin structures over a substrate, each with source/drain (S/D) features and a high-k/metal gate (HK/MG). A first HK/MG in a first gate region wraps over an upper portion of a first fin structure, the first fin structure including an epitaxial silicon (Si) layer as its upper portion and an epitaxial growth silicon germanium (SiGe), with a silicon germanium oxide (SiGeO) feature at its outer layer, as its middle portion, and the substrate as its bottom portion. A second HK/MG in a second gate region, wraps over an upper portion of a second fin structure, the second fin structure including an epitaxial SiGe layer as its upper portion, an epitaxial Si layer as it upper middle portion, an epitaxial SiGe layer as its lower middle portion, and the substrate as its bottom portion.
    Type: Application
    Filed: September 2, 2016
    Publication date: January 12, 2017
    Inventors: Kuo-Cheng Ching, Ka-Hing Fung, Chih-Sheng Chang, Zhiqiang Wu
  • Publication number: 20160365447
    Abstract: The demand for increased performance and shrinking geometry from ICs has brought the introduction of multi-gate devices including finFET devices. Inducing a higher tensile strain/stress in a region provides for enhanced electron mobility, which may improve performance. High temperature processes during device fabrication tend to relax the stress on these strain inducing layers. The present disclosure relates to a method of forming a strain inducing layer or cap layer at the RPG (replacement poly silicon gate) stage of a finFET device formation process. In some embodiments, the strain inducing layer is doped to reduce the external resistance.
    Type: Application
    Filed: August 25, 2016
    Publication date: December 15, 2016
    Inventors: Zhiqiang Wu, Yi-Ming Sheu, Tzer-Min Shen, Chun-Fu Cheng, Hong-Shen Chen
  • Patent number: 9512380
    Abstract: This invention relates to a novel hindered phenol compound of Formula (I) (wherein the groups R and R? are as defined in the specification), preparation thereof and use thereof as an antioxidant. By using the hindered phenol compound of this invention as an antioxidant, it is possible to produce a lubricant oil composition exhibiting excellent oxidation resistance at elevated temperatures.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: December 6, 2016
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Shuo Su, Jun Long, Qinghua Duan, Han Zhou, Zhiqiang Wu, Xinhua Li, Yi Zhao, Xiaoguang Zhao
  • Patent number: 9502253
    Abstract: A method of forming an integrated circuit comprises forming a first doped region in a substrate using a first angle ion implantation performed on a first side of a gate structure. The gate structure has a length in a first direction and a width in a second direction. The method also comprises forming a second doped region in the substrate using a second angle ion implantation performed on a second side of the gate structure. The first angle ion implantation has a first implantation angle with respect to the second direction and the second angle ion implantation has a second implantation angle with respect to the second direction. Each of the first implantation angle and the second implantation angle is substantially larger than 0° and less than 90°.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: November 22, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Zhiqiang Wu, Yi-Ming Sheu, Tsung-Hsing Yu, Kuan-Lun Cheng, Chih-Pin Tsao, Wen-Yuan Chen, Chun-Fu Cheng, Chih-Ching Wang
  • Patent number: 9502409
    Abstract: A multi-gate semiconductor device is formed including a semiconductor substrate. The multi-gate semiconductor device also includes a first transistor including a first fin portion extending above the semiconductor substrate. The first transistor has a first channel region formed therein. The first channel region includes a first channel region portion doped at a first concentration of a first dopant type and a second channel region portion doped at a second concentration of the first dopant type. The second concentration is higher than the first concentration. The first transistor further includes a first gate electrode layer formed over the first channel region. The first gate electrode layer may be of a second dopant type. The first dopant type may be N-type and the second dopant type may be P-type. The second channel region portion may be formed over the first channel region portion.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: November 22, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jon-Hsu Ho, Chih-Ching Wang, Ching-Fang Huang, Wen-Hsing Hsieh, Tsung-Hsing Yu, Yi-Ming Sheu, Chih Chieh Yeh, Ken-Ichi Goto, Zhiqiang Wu
  • Publication number: 20160336445
    Abstract: A Fin Field-Effect Transistor (FinFET) includes a semiconductor layer over a substrate, wherein the semiconductor layer forms a channel of the FinFET. A first silicon germanium oxide layer is over the substrate, wherein the first silicon germanium oxide layer has a first germanium percentage. A second silicon germanium oxide layer is over the first silicon germanium oxide layer. The second silicon germanium oxide layer has a second germanium percentage greater than the first germanium percentage. A gate dielectric is on sidewalls and a top surface of the semiconductor layer. A gate electrode is over the gate dielectric.
    Type: Application
    Filed: July 27, 2016
    Publication date: November 17, 2016
    Inventors: Jean-Pierre Colinge, Kuo-Cheng Ching, Gwan Sin Chang, Zhiqiang Wu, Chih-Hao Wang, Carlos H. Diaz
  • Patent number: 9490348
    Abstract: Embodiments of the present disclosure include a semiconductor device, a FinFET device, and methods for forming the same. An embodiment is a semiconductor device including a first semiconductor fin extending above a substrate, the first semiconductor fin having a first lattice constant, an isolation region surrounding the first semiconductor fin, and a first source/drain region in the first semiconductor fin, the first source/drain having a second lattice constant different from the first lattice constant. The semiconductor device further includes a first oxide region along a bottom surface of the first source/drain region, the first oxide region extending into the isolation region.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: November 8, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Chih-Hao Wang, Ching-Wei Tsai, Zhiqiang Wu, Jean-Pierre Colinge
  • Patent number: 9455346
    Abstract: The demand for increased performance and shrinking geometry from ICs has brought the introduction of multi-gate devices including finFET devices. Inducing a higher tensile strain/stress in a region provides for enhanced electron mobility, which may improve performance. High temperature processes during device fabrication tend to relax the stress on these strain inducing layers. The present disclosure relates to a method of forming a strain inducing layer or cap layer at the RPG (replacement poly silicon gate) stage of a finFET device formation process. In some embodiments, the strain inducing layer is doped to reduce the external resistance.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: September 27, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Zhiqiang Wu, Yi-Ming Sheu, Tzer-Min Shen, Chun-Fu Cheng, Hong-Shen Chen
  • Patent number: 9436362
    Abstract: The disclosure generally describes computer-implemented methods, software, and systems for allowing provisioning of open data protocol (OData) services on top of a generic interaction layer (GenIL). One computer-implemented method includes receiving an OData-compliant request for data, determining a GenIL data provider to receive the OData-compliant request for data, determining the memory location of the data, requesting the data from the determined memory location, receiving the requested data from the determined memory location, converting, using at least one computer, the received data into an OData-compliant format, rendering an OData-compliant response, and transmitting the OData-compliant response.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: September 6, 2016
    Assignee: SAP SE
    Inventors: Zhiqiang Wu, Christian Weiss, Joerg Singler
  • Patent number: 9437683
    Abstract: The present disclosure describes a fin-like field-effect transistor (FinFET). The device includes one or more fin structures over a substrate, each with source/drain (S/D) features and a high-k/metal gate (HK/MG). A first HK/MG in a first gate region wraps over an upper portion of a first fin structure, the first fin structure including an epitaxial silicon (Si) layer as its upper portion and an epitaxial growth silicon germanium (SiGe), with a silicon germanium oxide (SiGeO) feature at its outer layer, as its middle portion, and the substrate as its bottom portion. A second HK/MG in a second gate region, wraps over an upper portion of a second fin structure, the second fin structure including an epitaxial SiGe layer as its upper portion, an epitaxial Si layer as it upper middle portion, an epitaxial SiGe layer as its lower middle portion, and the substrate as its bottom portion.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 6, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Kuo-Cheng Ching, Ka-Hing Fung, Chih-Sheng Chang, Zhiqiang Wu
  • Patent number: 9419098
    Abstract: A Fin Field-Effect Transistor (FinFET) includes a semiconductor layer over a substrate, wherein the semiconductor layer forms a channel of the FinFET. A first silicon germanium oxide layer is over the substrate, wherein the first silicon germanium oxide layer has a first germanium percentage. A second silicon germanium oxide layer is over the first silicon germanium oxide layer. The second silicon germanium oxide layer has a second germanium percentage greater than the first germanium percentage. A gate dielectric is on sidewalls and a top surface of the semiconductor layer. A gate electrode is over the gate dielectric.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: August 16, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jean-Pierre Colinge, Kuo-Cheng Ching, Gwan Sin Chang, Zhiqiang Wu, Chih-Hao Wang, Carlos H. Diaz
  • Publication number: 20160233321
    Abstract: Methods are disclosed herein for fabricating integrated circuit devices, such as fin-like field-effect transistors (FinFETs). An exemplary method includes forming a first semiconductor material layer over a fin portion of a substrate; forming a second semiconductor material layer over the first semiconductor material layer; and converting a portion of the first semiconductor material layer to a first semiconductor oxide layer. The fin portion of the substrate, the first semiconductor material layer, the first semiconductor oxide layer, and the second semiconductor material layer form a fin. The method further includes forming a gate stack overwrapping the fin.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: Kuo-Cheng Ching, Gwan Sin Chang, Zhiqiang Wu, Chih-Hao Wang
  • Patent number: 9412828
    Abstract: A semiconductor device includes a gate disposed over a substrate. The gate has a first gate portion of the gate including a gate dielectric and a gate electrode disposed above a first channel region and a second gate portion including a gate dielectric and a gate electrode disposed between the substrate and the first channel region and aligned with the first gate portion. A source and a drain region are disposed adjacent the gate. A dielectric layer is disposed on the substrate and has a first portion underlying at least some of the source, a second portion underlying at least some of the drain; and a third portion underlying at least some of the first channel, the first gate portion and the second gate portion.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 9, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Ching, Jean-Pierre Colinge, Zhiqiang Wu
  • Publication number: 20160218216
    Abstract: A method includes performing a first epitaxy to grow a silicon germanium layer over a semiconductor substrate, performing a second epitaxy to grow a silicon layer over the silicon germanium layer, and performing a first oxidation to oxidize the silicon germanium layer, wherein first silicon germanium oxide regions are generated. A strain releasing operation is performed to release a strain caused by the first silicon germanium oxide regions. A gate dielectric is formed on a top surface and a sidewall of the silicon layer. A gate electrode is formed over the gate dielectric.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Inventors: Carlos H. Diaz, Chih-Hao Wang, Gwan-Sin Chang, Jean-Pierre Colinge, Kuo-Cheng Ching, Zhiqiang Wu
  • Publication number: 20160218042
    Abstract: A nonplanar circuit device having a strain-producing structure disposed under the channel region is provided. In an exemplary embodiment, the integrated circuit device includes a substrate with a first fin structure and a second fin structure disposed on the substrate. An isolation feature trench is defined between the first fin structure and the second fin structure. The circuit device also includes a strain feature disposed on a horizontal surface of the substrate within the isolation feature trench. The strain feature may be configured to produce a strain on a channel region of a transistor formed on the first fin structure. The circuit device also includes a fill dielectric disposed on the strain feature within the isolation feature trench. In some such embodiments, the strain feature is further disposed on a vertical surface of the first fin structure and on a vertical surface of the second fin structure.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 28, 2016
    Inventors: Kuo-Cheng Ching, Ka-Hing Fung, Zhiqiang Wu
  • Publication number: 20160204200
    Abstract: A semiconductor device includes a first channel having a first linear surface and a first non-linear surface. The semiconductor device includes a first dielectric region surrounding the first channel. The semiconductor device includes a second channel having a third linear surface and a third non-linear surface. The semiconductor device includes a second dielectric region surrounding the second channel. The semiconductor device includes a gate electrode surrounding the first dielectric region and the second dielectric region.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Inventors: Xiaomeng Chen, Chien-Hong Chen, Shih-Chang Liu, Zhiqiang Wu