Patents by Inventor Po-Tao Chu

Po-Tao Chu 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: 9698256
    Abstract: The present disclosure relates to an integrated circuit with a termination region, and an associated method of formation. In some embodiments, the integrated circuit comprises a cell region and a termination region. The termination region is disposed at an outer periphery of the cell region. The cell region comprises an array of device cells. The termination region comprises a plurality of termination rings encompassing the cell region. The plurality of termination rings have different depths.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 4, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jheng-Sheng You, Che-Yi Lin, Shen-Ping Wang, Lieh-Chuan Chen, Po-Tao Chu
  • Publication number: 20170186638
    Abstract: The present disclosure relates to a wafer cassette system having an adaptive inset configured to enable wafers having a first diameter to be held by a wafer cassette configured to hold wafers having a second diameter larger than the first diameter. The wafer cassette system includes a wafer cassette having a first plurality of wafer slots configured to receive one or more wafers having a first diameter. An adaptive inset is arranged in an interior cavity of the wafer cassette. The adaptive inset has a second plurality of wafer slots configured to receive one or more wafers having a second diameter that is less than the first diameter. The adaptive inset allows for the wafer cassette to hold wafers having the second diameter, thereby enabling semiconductor processing tools to processes wafer having a different diameter than those able to be held by wafer cassettes that the tools can receive.
    Type: Application
    Filed: October 7, 2016
    Publication date: June 29, 2017
    Inventors: Chia-Yuan Chen, Hung-Jen Lu, Ming-Hsien Lee, Po-Tao Chu
  • Patent number: 9666511
    Abstract: A semiconductor package having a lead frame over which a first device and a second device are spaced is provided. The lead frame includes a die pad upon which a first chip and a second chip are spaced and bonded. The first chip includes the first device, which has a first operating voltage. The second chip includes the second device, which has a second operating voltage greater than the first operating voltage. A dielectric layer is arranged between the die pad and the second device. A method for manufacturing the semiconductor package is also provided.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: May 30, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tzu-Ming Huang, Shen-Ping Wang, Lieh-Chuan Chen, Po-Tao Chu
  • Patent number: 9647065
    Abstract: A bipolar transistor includes a substrate and a first well in the substrate, the first well having a first dopant type. The bipolar transistor further includes a split collector region in the first well. The split collector region includes a highly doped central region having a second dopant type opposite the first dopant type; and a lightly doped peripheral region having the second dopant type, the lightly doped peripheral region surrounding the highly doped central region. A dopant concentration of the lightly doped peripheral region is less than a dopant concentration of the highly doped central region.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: May 9, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Fu-Hsiung Yang, Long-Shih Lin, Kun-Ming Huang, Chih-Heng Shen, Po-Tao Chu
  • Patent number: 9614031
    Abstract: A high-voltage super junction device is disclosed. The device includes a semiconductor substrate region having a first conductivity type and having neighboring trenches disposed therein. The neighboring trenches each have trench sidewalls and a trench bottom surface. A region having a second conductivity type is disposed in or adjacent to a trench and meets the semiconductor substrate region at a p-n junction. A gate electrode is formed on the semiconductor substrate region and is electrically isolated from the semiconductor substrate region by a gate dielectric. A body region having the second conductivity type is disposed on opposite sides of the gate electrode near a surface of the semiconductor substrate. A source region having the first conductivity type is disposed within in the body region on opposite sides of the gate electrode near the surface of the semiconductor substrate.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: April 4, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tai-I Yang, Shou-Wei Lee, Shao-Chi Yu, Hong-Seng Shue, Kun-Ming Huang, Po-Tao Chu
  • Patent number: 9608060
    Abstract: A semiconductor structure includes a substrate, a semiconductor device in the substrate, and an isolating structure in the substrate and adjacent to the semiconductor device. The isolating structure has a roughness surface at a sidewall of the isolating structure, and the roughness surface includes carbon atoms thereon.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 28, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-Chieh Chou, Tsai-Feng Yang, Chun-Yi Yang, Kun-Ming Huang, Shen-Ping Wang, Lieh-Chuan Chen, Po-Tao Chu
  • Publication number: 20170062581
    Abstract: A semiconductor device includes a first III-V compound layer on a substrate, a second III-V compound layer on the first III-V compound layer, in which a material of the first III-V compound layer is different from that of the second III-V compound layer, a gate metal stack disposed on the second III-V compound layer, a source contact and a drain contact disposed at opposite sides of the gate metal stack, a gate field plate disposed between the gate metal stack and the drain contact, an anti-reflective coating (ARC) layer formed on the source contact and the drain contact, and an etch stop layer formed on the ARC layer.
    Type: Application
    Filed: August 29, 2015
    Publication date: March 2, 2017
    Inventors: Jheng-Sheng YOU, Hsin-Chih LIN, Kun-Ming HUANG, Lieh-Chuan CHEN, Po-Tao CHU, Shen-Ping WANG, Chien-Li KUO
  • Patent number: 9564515
    Abstract: A semiconductor device having a super junction structure includes a substrate, an epitaxial layer of a first conductivity type, a first trench, a first doped region of a second conductivity type opposite to the first conductivity type, a second trench and a second doped region of the first conductivity type. The epitaxial layer of the first conductivity type is over the substrate. The first trench is in the epitaxial layer. The first doped region of the second conductivity type is in the epitaxial layer and surrounds the first trench. The second trench is in the epitaxial layer and separated from the first trench. The second doped region of the first conductivity type is in the epitaxial layer and surrounds the second trench. The second doped region has a dopant concentration greater than a dopant concentration of the epitaxial layer. A method for manufacturing the semiconductor device is also provided.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 7, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Jheng-Sheng You, Che-Yi Lin, Shen-Ping Wang, Kun-Ming Huang, Lieh-Chuan Chen, Po-Tao Chu
  • Patent number: 9558986
    Abstract: A semiconductor structure includes a semiconductor substrate, a first doped region, a second doped region and a dielectric. The first doped region and the second doped region respectively has an aspect ratio and a dopant concentration uniformity along a depth in the semiconductor substrate. The dielectric is between the first doped region and the second doped region. The dopant concentration uniformity is within 0.2% and the aspect ratio of the semiconductor substrate is greater than about 10.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: January 31, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Tai-I Yang, Hong-Seng Shue, Kun-Ming Huang, Chih-Heng Shen, Po-Tao Chu
  • Publication number: 20160225899
    Abstract: A method includes forming a drain region in a first layer on a semiconductor substrate. The drain region is formed comprising a drain rectangular portion having a first end and a second end, a first drain end portion contiguous with the drain rectangular portion and extending from the first end of the drain rectangular portion away from a center of the drain region, and a second drain end portion contiguous with the drain rectangular portion and extending from the second end of the drain rectangular portion away from the center of the drain region. The method also comprises forming a source region free from contact with and surrounding the drain region in the first layer. The first drain end portion and the second drain end portion are formed having a same doping type and a different doping concentration than the drain rectangular portion.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Tsai-Feng Yang, Chih-Heng Shen, Chun-Yi Yang, Kun-Ming Huang, Po-Tao Chu, Shen-Ping Wang
  • Publication number: 20160211203
    Abstract: A semiconductor package having a lead frame over which a first device and a second device are spaced is provided. The lead frame includes a die pad upon which a first chip and a second chip are spaced and bonded. The first chip includes the first device, which has a first operating voltage. The second chip includes the second device, which has a second operating voltage greater than the first operating voltage. A dielectric layer is arranged between the die pad and the second device. A method for manufacturing the semiconductor package is also provided.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 21, 2016
    Inventors: Tzu-Ming Huang, Sheng-Ping Wang, Lieh-Chuan Chen, Po-Tao Chu
  • Publication number: 20160133698
    Abstract: A semiconductor structure includes a substrate, a semiconductor device in the substrate, and an isolating structure in the substrate and adjacent to the semiconductor device. The isolating structure has a roughness surface at a sidewall of the isolating structure, and the roughness surface includes carbon atoms thereon.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Yu-Chieh CHOU, Tsai-Feng YANG, Chun-Yi YANG, Kun-Ming HUANG, Shen-Ping WANG, Lieh-Chuan CHEN, Po-Tao CHU
  • Patent number: 9312348
    Abstract: A semiconductor device comprises a semiconductor substrate, a first layer over the semiconductor substrate, and a drain region in the first layer. The drain region comprises a drain rectangular portion having a first end and a second end, a first drain end portion contiguous with the drain rectangular portion and extending from the first end of the drain rectangular portion away from a center of the drain region, and a second drain end portion contiguous with the drain rectangular portion and extending from the second end of the drain rectangular portion away from the center of the drain region. The semiconductor device also comprises a source region free from contact with and surrounding the drain region in the first layer. The first drain end portion and the second drain end portion have a same doping type and a different doping concentration than the drain rectangular portion.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: April 12, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tsai-Feng Yang, Chun-Yi Yang, Kun-Ming Huang, Shen-Ping Wang, Chih-Heng Shen, Po-Tao Chu
  • Publication number: 20160087034
    Abstract: The present disclosure relates to an integrated circuit with a termination region, and an associated method of formation. In some embodiments, the integrated circuit comprises a cell region and a termination region. The termination region is disposed at an outer periphery of the cell region. The cell region comprises an array of device cells. The termination region comprises a plurality of termination rings encompassing the cell region. The plurality of termination rings have different depths.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Jheng-Sheng You, Che-Yi Lin, Shen-Ping Wang, Lieh-Chuan Chen, Po-Tao Chu
  • Publication number: 20160043215
    Abstract: A semiconductor device includes a gate structure, a source region and a drain region. The source region and the drain region are on opposite sides of the gate structure. The source region includes a first region of a first conductivity type and a second region of a second conductivity type. The second conductivity type is opposite to the first conductivity type. The first region is between the second region and the gate structure. The second region includes at least one projection protruding into the first region and toward the gate structure.
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Inventors: Tzu-Ming HUANG, Shen-Ping WANG, Lieh-Chuan CHEN, Chih-Heng SHEN, Po-Tao CHU
  • Publication number: 20160027874
    Abstract: A semiconductor device having a super junction structure includes a substrate, an epitaxial layer of a first conductivity type, a first trench, a first doped region of a second conductivity type opposite to the first conductivity type, a second trench and a second doped region of the first conductivity type. The epitaxial layer of the first conductivity type is over the substrate. The first trench is in the epitaxial layer. The first doped region of the second conductivity type is in the epitaxial layer and surrounds the first trench. The second trench is in the epitaxial layer and separated from the first trench. The second doped region of the first conductivity type is in the epitaxial layer and surrounds the second trench. The second doped region has a dopant concentration greater than a dopant concentration of the epitaxial layer. A method for manufacturing the semiconductor device is also provided.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 28, 2016
    Inventors: Jheng-Sheng YOU, Che-Yi LIN, Shen-Ping WANG, Kun-Ming HUANG, Lieh-Chuan CHEN, Po-Tao CHU
  • Publication number: 20150325642
    Abstract: A high-voltage super junction device is disclosed. The device includes a semiconductor substrate region having a first conductivity type and having neighboring trenches disposed therein. The neighboring trenches each have trench sidewalls and a trench bottom surface. A region having a second conductivity type is disposed in or adjacent to a trench and meets the semiconductor substrate region at a p-n junction. A gate electrode is formed on the semiconductor substrate region and electrically is electrically isolated from the semiconductor substrate region by a gate dielectric. A body region having the second conductivity type is disposed on opposite sides of the gate electrode near a surface of the semiconductor substrate. A source region having the first conductivity type is disposed within in the body region on opposite sides of the gate electrode near the surface of the semiconductor substrate.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 12, 2015
    Inventors: Tai-I Yang, Shou-Wei Lee, Shao-Chi Yu, Hong-Seng Shue, Kun-Ming Huang, Po-Tao Chu
  • Patent number: 9184282
    Abstract: Embodiments for the present disclosure include a semiconductor device, an ultra-high voltage (UHV) laterally-diffused metal-oxide-semiconductor (LDMOS) transistor, and methods of forming the same. An embodiment includes a first well region of a first conductivity type in a top surface of a substrate, and a second well region of a second conductivity type in the top surface of the substrate. The second well region laterally separated from the first well region by a portion of the substrate. The embodiment further includes a third region of the second conductivity type in the first well region, and a first field oxide region in the first well region, a second field oxide region in the second well region, the second field oxide region having a second bottom surface, and the first field oxide region having a first bottom surface lower than the second bottom surface and on and directly contacting the third region.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: November 10, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Tzu-Ming Huang, Chia-Chia Kan, Shen-Ping Wang, Lieh-Chuan Chen, Po-Tao Chu
  • Publication number: 20150311070
    Abstract: A substrate for an integrated circuit includes a device wafer having a raw carrier concentration and an epitaxial layer disposed over the device wafer. The epitaxial layer has a first carrier concentration. The first carrier concentration is higher than the raw carrier concentration.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 29, 2015
    Inventors: Long-Shih Lin, Fu-Hsiung Yang, Kun-Ming Huang, Ming-Yi Lin, Po-Tao Chu
  • Patent number: 9166046
    Abstract: A semiconductor device includes a gate structure, and a source region and a drain region on opposite sides of the gate structure. The source region comprises a first region of a first conductivity type, and a second region of a second conductivity type, the second conductivity type opposite to the first conductivity type. The first region is arranged between the second region and the gate structure. The second region comprises at least one projection protruding into the first region and toward the gate structure.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: October 20, 2015
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tzu-Ming Huang, Shen-Ping Wang, Lieh-Chuan Chen, Chih-Heng Shen, Po-Tao Chu