Patents by Inventor Shih-Wei Wang

Shih-Wei 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: 7880217
    Abstract: A programmable non-volatile memory (PNVM) device and method of forming the same compatible with CMOS logic device processes to improve a process flow, the PNVM device including a semiconductor substrate active area; a gate dielectric on the active area; a floating gate electrode on the gate dielectric; an inter-gate dielectric disposed over the floating gate electrode; and, a control gate damascene electrode extending through a dielectric insulating layer in electrical communication with the inter-gate dielectric, the control gate damascene electrode disposed over an upper portion of the floating gate electrode.
    Type: Grant
    Filed: July 30, 2005
    Date of Patent: February 1, 2011
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hung-Cheng Sung, Te-Hsun Hsu, Shih-Wei Wang
  • Patent number: 7701767
    Abstract: A semiconductor device with multiple strap-contact configurations for a memory cell array. An array with memory cells interconnected with bit-lines, control-gate lines, erase gate lines, common-source lines, and word-lines is provided. In one aspect of an illustrative embodiment, a strap-contact corridor is spaced at n bit-line intervals (n>1) across the array. The strap-contact corridor comprises strap-contact cells, which provide electrical interconnection between control-gate lines, erase gate lines, common-source lines, and word-lines and their respective straps.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: April 20, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Shin Chu, Shih-Wei Wang
  • Publication number: 20100008141
    Abstract: A semiconductor device with multiple strap-contact configurations for a memory cell array. An array with memory cells interconnected with bit-lines, control-gate lines, erase gate lines, common-source lines, and word-lines is provided. In one aspect of an illustrative embodiment, a strap-contact corridor is spaced at n bit-line intervals (n>1) across the array. The strap-contact corridor comprises strap-contact cells, which provide electrical interconnection between control-gate lines, erase gate lines, common-source lines, and word-lines and their respective straps.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Inventors: Yi-Shin Chu, Shih-Wei Wang
  • Publication number: 20090207662
    Abstract: The present disclosure provides a multi-transistor element including a substrate, a first floating gate disposed on the substrate, a second floating gate disposed on the substrate and coupled to the first floating gate, and a first active region disposed in the substrate and coupled to the first and second floating gates.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 20, 2009
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Shih Wei Wang, Chun Jung Lin
  • Patent number: 7495960
    Abstract: An array of flash memory cells includes a first sector comprising a plurality of rows wherein each row is connected to a control-gate line, a first row comprising a first flash memory cell in the first sector, a first control-gate line connecting control-gates of flash memory cells in the first row, a second row in the first sector and comprising a second flash memory cell sharing a common source-line and a same bit-line with the first flash memory cell, a second control-gate line connecting control-gates of memory cells in the second row wherein the first and the second control-gate lines are disconnected from each other, a second sector comprising a plurality of rows wherein each row is connected to a control-gate line, and a positive high-voltage (HV) driver connected to the first control-gate line in the first sector and a control-gate line in the second sector.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: February 24, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yue-Der Chih, Shih-Wei Wang, Derek Lin
  • Publication number: 20080258200
    Abstract: A semiconductor memory device includes a substrate, and a trench formed in the substrate. First and second floating gates, each associated with corresponding first and second memory cells, extend into the trench. Since the trench can be made relatively deep, the floating gates may be made relatively large while the lateral dimensions of the floating gates remains small. Moreover, the insulator thickness between the floating gate and a sidewall of the trench where a channel region is formed can be made relatively thick, even though the lateral extent of the memory cell is reduced. A programming gate extends into the trench between the first and second floating gates, and is shared, along with a source region, by the two memory cells.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Inventors: Shih Wei Wang, Te-Hsun Hsu, Hung-Cheng Sung
  • Publication number: 20080116505
    Abstract: An integrated circuit device includes a substrate; a bottom electrode over the substrate wherein the bottom electrode is in or over a lowest metallization layer over the substrate; a blocking layer over the bottom electrode; a charge-trapping layer over the blocking layer; an insulation layer over the charge-trapping layer; a control gate over the insulation layer; a tunneling layer over the control gate; and a top electrode over the tunneling layer.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 22, 2008
    Inventor: Shih Wei Wang
  • Publication number: 20080068887
    Abstract: An array of flash memory cells includes a first sector comprising a plurality of rows wherein each row is connected to a control-gate line, a first row comprising a first flash memory cell in the first sector, a first control-gate line connecting control-gates of flash memory cells in the first row, a second row in the first sector and comprising a second flash memory cell sharing a common source-line and a same bit-line with the first flash memory cell, a second control-gate line connecting control-gates of memory cells in the second row wherein the first and the second control-gate lines are disconnected from each other, a second sector comprising a plurality of rows wherein each row is connected to a control-gate line, and a positive high-voltage (HV) driver connected to the first control-gate line in the first sector and a control-gate line in the second sector.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: Yue-Der Chih, Shih-Wei Wang, Derek Lin
  • Patent number: 7326994
    Abstract: A non-volatile memory cell and a method of manufacturing the same are provided. The non-volatile memory cell includes a semiconductor substrate, a floating gate over the semiconductor substrate, a first, a second, and a third capacitor each having a first plate and sharing a common floating gate as a second plate. The non-volatile memory cell further includes a transistor connected in series with the first capacitor. The gate electrode of the transistor is connected to a wordline of a memory array, and a source/drain region is connected to a bitline.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: February 5, 2008
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Te-Hsun Hsu, Hung-Cheng Sung, Wen-Ting Chu, Shih-Wei Wang
  • Publication number: 20070241386
    Abstract: A method for forming a semiconductor structure includes providing a substrate; forming a gate stack of a flash memory cell, wherein a top portion of the gate stack comprises a capping layer; forming a gate having at least a portion over the capping layer; and reducing a thickness of the portion of the gate over the capping layer. The topography height difference between the flash memory cell and MOS devices on the same chip is reduced.
    Type: Application
    Filed: March 9, 2007
    Publication date: October 18, 2007
    Inventors: Shih Wei Wang, Derek Lin, Chen-Ming Huang, Chang-Jen Hsieh, Chi-Hsin Lo, Chung-Yi Yu, Feng-Jia Shiu, Yeur-Luen Tu, Yi-Shin Chu, Jen-Sheng Yang
  • Publication number: 20070120172
    Abstract: A non-volatile memory cell and a method of manufacturing the same are provided. The non-volatile memory cell includes a semiconductor substrate, a floating gate over the semiconductor substrate, a first, a second, and a third capacitor each having a first plate and sharing a common floating gate as a second plate. The non-volatile memory cell further includes a transistor connected in series with the first capacitor. The gate electrode of the transistor is connected to a wordline of a memory array, and a source/drain region is connected to a bitline.
    Type: Application
    Filed: October 12, 2005
    Publication date: May 31, 2007
    Inventors: Te-Hsun Hsu, Hung-Cheng Sung, Wen-Ting Chu, Shih-Wei Wang
  • Publication number: 20070085130
    Abstract: A nanocrystal (or quantum dot) memory cell includes a tier of separated tungsten or tungsten-containing nanocrystals on an insulative tunneling layer. The nanocrystals are formed by low pressure chemical vapor deposition. The remainder of the cell may be fabricated pursuant to conventional MOS protocols. Generally, Fowler-Nordheim tunneling occurs during write and erase operations.
    Type: Application
    Filed: October 19, 2005
    Publication date: April 19, 2007
    Inventor: Shih-Wei Wang
  • Publication number: 20070023822
    Abstract: A programmable non-volatile memory (PNVM) device and method of forming the same compatible with CMOS logic device processes to improve a process flow, the PNVM device including a semiconductor substrate active area; a gate dielectric on the active area; a floating gate electrode on the gate dielectric; an inter-gate dielectric disposed over the floating gate electrode; and, a control gate damascene electrode extending through a dielectric insulating layer in electrical communication with the inter-gate dielectric, the control gate damascene electrode disposed over an upper portion of the floating gate electrode.
    Type: Application
    Filed: July 30, 2005
    Publication date: February 1, 2007
    Inventors: Hung-Cheng Sung, Te-Hsun Hsu, Shih-Wei Wang
  • Patent number: 7101758
    Abstract: A method for forming triple polysilicon split gate electrodes in a EEPROM flash memory array providing a first gate structure; blanket depositing a first polysilicon layer over the first gate structure; etching back the first polysilicon layer according to a first dry etching process; blanket depositing a second dielectric insulating layer over the first polysilicon layer; blanket depositing a second polysilicon layer over the second dielectric insulating layer; and, lithographically patterning and dry etching according to a respective third and fourth dry etching process through a thickness portion of the respective second and first polysilicon layers to respectively form third and second polysilicon gate electrodes.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: September 5, 2006
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hsiang-Fan Lee, Shih-Wei Wang, Yi-Jiun Lin, Kuo-Wei Chu, Ching-Sen Kuo, Chia-Tong Ho
  • Publication number: 20050258467
    Abstract: A non-volatile memory device and a method for fabricating the non-volatile memory device employ at least one charge storage dot formed upon a substrate. At least one of an oxidation inhibiting layer and a charge storage enhancing layer is formed upon the charge storage dot. A silicon nitride material layer may simultaneously provide oxidation inhibiting properties and charge storage enhancing properties. The non-volatile memory device is formed with enhanced performance.
    Type: Application
    Filed: May 21, 2004
    Publication date: November 24, 2005
    Inventors: Shih-Wei Wang, Hung-Cheng Sung
  • Publication number: 20050202631
    Abstract: A method for forming triple polysilicon split gate electrodes in a EEPROM flash memory array providing a first gate structure; blanket depositing a first polysilicon layer over the first gate structure; etching back the first polysilicon layer according to a first dry etching process; blanket depositing a second dielectric insulating layer over the first polysilicon layer; blanket depositing a second polysilicon layer over the second dielectric insulating layer; and, lithographically patterning and dry etching according to a respective third and fourth dry etching process through a thickness portion of the respective second and first polysilicon layers to respectively form third and second polysilicon gate electrodes.
    Type: Application
    Filed: October 15, 2003
    Publication date: September 15, 2005
    Inventors: Hsiang-Fan Lee, Shih-Wei Wang, Yi-Jiun Lin, Kuo-Wei Chu, Ching-Sen Kuo, Chia-Tong Ho
  • Patent number: 6930348
    Abstract: The dual bit split gate flash memory of the invention comprises a plurality of memory cells wherein each memory cell comprises a select gate overlying a substrate and isolated from the substrate by a select gate oxide layer, a first and second floating gate on opposite sidewalls of the select gate and isolated from the select gate by an oxide spacer, and a control gate overlying the select gate and the first and second floating gates and isolated from the select gate and the first and second floating gates by a dielectric layer, and source and drain regions within the substrate and shared by adjacent memory cells.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: August 16, 2005
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Shih-Wei Wang
  • Publication number: 20040262668
    Abstract: The dual bit split gate flash memory of the invention comprises a plurality of memory cells wherein each memory cell comprises a select gate overlying a substrate and isolated from the substrate by a select gate oxide layer, a first and second floating gate on opposite sidewalls of the select gate and isolated from the select gate by an oxide spacer, and a control gate overlying the select gate and the first and second floating gates and isolated from the select gate and the first and second floating gates by a dielectric layer, and source and drain regions within the substrate and shared by adjacent memory cells.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 30, 2004
    Applicant: Taiwan Semicondutor Manufacturing Co.
    Inventor: Shih-Wei Wang
  • Patent number: 5955200
    Abstract: A structure for reducing the stress between a HSQ dielectric layer and a metal layer. The structure comprises a metal layer, a stress buffer above the metal layer, and a spin-on-glass layer above the stress buffer. If the spin-on-glass layer is a dielectric material capable of producing tensile stress, the stress buffer layer is made from a material capable of generating compressive stress. On the contrary, if the spin-on-glass layer is a dielectric material capable of producing compressive stress, the stress buffer layer is made from a material capable of generating tensile stress.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: September 21, 1999
    Assignee: United Microelectronics Corp.
    Inventors: Kow-Ming Chang, Shih-Wei Wang