Patents by Inventor Ping-Wei Wang

Ping-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).

  • Publication number: 20170125424
    Abstract: An SRAM includes an SRAM array including a plurality of SRAM cells arranged in a matrix. Each of the SRAM cells includes six vertical field effect transistors. The SRAM array includes a plurality of groups of conductive regions extending in the column direction. Each of the plurality of groups of conductive regions includes a first to a fourth conductive region arranged in this order in the row direction, and the first to fourth conductive regions are separated by insulating regions from each other. The first, second and third conductive regions are coupled to sources of first conductive type VFETs, and the fourth conductive region is coupled to sources of second conductive type VFETs. The plurality of groups are arranged in the row direction such that the fourth conductive region of one group of conductive regions is adjacent to the first conductive region of adjacent one group of conductive regions.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 4, 2017
    Inventors: Chia-Hao PAO, Chang-Ta YANG, Feng-Ming CHANG, Ping-Wei WANG
  • Patent number: 9620509
    Abstract: An SRAM includes an SRAM array including a plurality of SRAM cells arranged in a matrix. Each of the SRAM cells includes six vertical field effect transistors. The SRAM array includes a plurality of groups of conductive regions extending in the column direction. Each of the plurality of groups of conductive regions includes a first to a fourth conductive region arranged in this order in the row direction, and the first to fourth conductive regions are separated by insulating regions from each other. The first, second and third conductive regions are coupled to sources of first conductive type VFETs, and the fourth conductive region is coupled to sources of second conductive type VFETs. The plurality of groups are arranged in the row direction such that the fourth conductive region of one group of conductive regions is adjacent to the first conductive region of adjacent one group of conductive regions.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 11, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Hao Pao, Chang-Ta Yang, Feng-Ming Chang, Ping-Wei Wang
  • Publication number: 20160351574
    Abstract: Structures, devices and methods are provided for fabricating memory devices. A structure includes: a first conductive line disposed in a first conductive layer; a first landing pad disposed in the first conductive layer and associated with a second conductive line disposed in a second conductive layer; and a second landing pad disposed in the first conductive layer and associated with a third conductive line disposed in a third conductive layer. The second conductive layer and the third conductive layer are different from the first conductive layer.
    Type: Application
    Filed: August 10, 2016
    Publication date: December 1, 2016
    Inventors: FENG-MING CHANG, LIEN-JUNG HUNG, HUAI-YING HUANG, PING-WEI WANG
  • Publication number: 20160307882
    Abstract: A layout of a memory device is stored on a non-transitory computer-readable medium. The layout includes a plurality of active area regions, a lowermost interconnect layer, a plurality of memory cells, and a word line. The lowermost interconnect layer includes a first conductive layer over the plurality of active area regions, and a second conductive layer over the first conductive layer. The plurality of memory cells includes the plurality of active area regions. The word line is in the second conductive layer, and is coupled to the plurality of memory cells.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 20, 2016
    Inventors: Jui-Lin CHEN, Feng-Ming CHANG, Huai-Ying HUANG, Ping-Wei WANG
  • Publication number: 20160275996
    Abstract: A circuit comprises a first voltage line, a second voltage line parallel to the first voltage line, and a bit line between the first voltage line and the second voltage line. The bit line is separated from the first voltage line by a minimum distance allowed by a design rule. The bit line is closer to the first voltage line than to the second voltage line. A first capacitance value between the bit line and the first voltage line is different than a second capacitance value between the bit line and the second voltage line.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 22, 2016
    Inventors: Jui-Lin CHEN, Feng-Ming CHANG, Huai-Ying HUANG, Kian-Long LIM, Ping-Wei WANG
  • Patent number: 9431066
    Abstract: A circuit comprises a first voltage line, a second voltage line parallel to the first voltage line, and a bit line between the first voltage line and the second voltage line. The bit line is separated from the first voltage line by a minimum distance allowed by a design rule. The bit line is closer to the first voltage line than to the second voltage line. A first capacitance value between the bit line and the first voltage line is different than a second capacitance value between the bit line and the second voltage line.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: August 30, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jui-Lin Chen, Feng-Ming Chang, Huai-Ying Huang, Kian-Long Lim, Ping-Wei Wang
  • Patent number: 9425085
    Abstract: Structures, devices and methods are provided for fabricating memory devices. A structure includes: a first conductive line disposed in a first conductive layer; a first landing pad disposed in the first conductive layer and associated with a second conductive line disposed in a second conductive layer; and a second landing pad disposed in the first conductive layer and associated with a third conductive line disposed in a third conductive layer. The second conductive layer and the third conductive layer are different from the first conductive layer.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 23, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Feng-Ming Chang, Lien-Jung Hung, Huai-Ying Huang, Ping-Wei Wang
  • Patent number: 9362399
    Abstract: The present disclosure relates to methods for fabricating a field-effect transistor. The method includes performing a pocket implantation to a semiconductor substrate; thereafter forming a polysilicon layer on the semiconductor substrate; and patterning the polysilicon layer to form a polysilicon gate. The field-effect transistor (FET) includes a well of a first type dopant, formed in a semiconductor substrate; a metal gate disposed on the semiconductor substrate and overlying the well; a channel formed in the semiconductor substrate and underlying the metal gate; source and drain regions of a second type dopant opposite from the first type, the source and drain regions being formed in the semiconductor substrate and on opposite sides of the channel; and a pocket doping profile of the first type dopant and being defined in the well to form a continuous and uniform doping region from the source region to the drain region.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: June 7, 2016
    Assignee: Taiwn Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng Chiang Hung, Huai-Ying Huang, Ping-Wei Wang
  • Publication number: 20160148676
    Abstract: A method of using a static random access memory (SRAM) includes pre-discharging a data line to a reference voltage, activating a bit cell connected to the data line, wherein the bit cell comprises a p-type pass gate, and exchanging bit information between the data line and the activated bit cell.
    Type: Application
    Filed: February 2, 2016
    Publication date: May 26, 2016
    Inventors: Wei-Cheng WU, Wei Min CHAN, Yen-Huei CHEN, Hung-Jen LIAO, Ping-Wei WANG
  • Patent number: 9281056
    Abstract: A static random access memory (SRAM) including a bit cell, wherein the bit cell includes at least two p-type pass gates. The SRAM further includes a bit line connected to the bit cell, and a bit line bar connected to the bit cell. The SRAM further includes a pre-discharge circuit connected to the bit line and to the bit line bar, wherein the pre-discharge circuit includes at least two n-type transistors. The SRAM further includes cross-coupled transistors connected to the bit line and to the bit line bar, wherein each transistor of the cross-coupled transistors is an n-type transistor. The SRAM further includes a write multiplexer connected to the bit line and to the bit line bar, wherein the write multiplexer includes two p-type transistors.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: March 8, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei-Cheng Wu, Wei Min Chan, Yen-Huei Chen, Hung-Jen Liao, Ping-Wei Wang
  • Publication number: 20150371702
    Abstract: A static random access memory (SRAM) including a bit cell, wherein the bit cell includes at least two p-type pass gates. The SRAM further includes a bit line connected to the bit cell, and a bit line bar connected to the bit cell. The SRAM further includes a pre-discharge circuit connected to the bit line and to the bit line bar, wherein the pre-discharge circuit includes at least two n-type transistors. The SRAM further includes cross-coupled transistors connected to the bit line and to the bit line bar, wherein each transistor of the cross-coupled transistors is an n-type transistor. The SRAM further includes a write multiplexer connected to the bit line and to the bit line bar, wherein the write multiplexer includes two p-type transistors.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 24, 2015
    Inventors: Wei-Cheng WU, Wei Min CHAN, Yen-Huei CHEN, Hung-Jen LIAO, Ping-Wei WANG
  • Publication number: 20150318241
    Abstract: Structures, devices and methods are provided for fabricating memory devices. A structure includes: a first conductive line disposed in a first conductive layer; a first landing pad disposed in the first conductive layer and associated with a second conductive line disposed in a second conductive layer; and a second landing pad disposed in the first conductive layer and associated with a third conductive line disposed in a third conductive layer. The second conductive layer and the third conductive layer are different from the first conductive layer.
    Type: Application
    Filed: July 18, 2014
    Publication date: November 5, 2015
    Inventors: FENG-MING CHANG, LIEN-JUNG HUNG, HUAI-YING HUANG, PING-WEI WANG
  • Patent number: 9152039
    Abstract: The present disclosure provides for many different embodiments of a multiple patterning technology method and system. An exemplary method includes receiving a pattern layout having a plurality of features; coloring each of the plurality of features one of at least two colors, thereby forming a colored pattern layout, wherein the coloring includes coloring match-sensitive features a same color; and fabricating at least two masks with the features of the colored pattern layout, wherein each mask includes features of a single color.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: October 6, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Feng-Ming Chang, Chang-Ta Yang, Ping-Wei Wang, Min Cao
  • Publication number: 20150155382
    Abstract: The present disclosure relates to methods for fabricating a field-effect transistor. The method includes performing a pocket implantation to a semiconductor substrate; thereafter forming a polysilicon layer on the semiconductor substrate; and patterning the polysilicon layer to form a polysilicon gate. The field-effect transistor (FET) includes a well of a first type dopant, formed in a semiconductor substrate; a metal gate disposed on the semiconductor substrate and overlying the well; a channel formed in the semiconductor substrate and underlying the metal gate; source and drain regions of a second type dopant opposite from the first type, the source and drain regions being formed in the semiconductor substrate and on opposite sides of the channel; and a pocket doping profile of the first type dopant and being defined in the well to form a continuous and uniform doping region from the source region to the drain region.
    Type: Application
    Filed: January 20, 2015
    Publication date: June 4, 2015
    Inventors: Sheng Chiang Hung, Huai-Ying Huang, Ping-Wei Wang
  • Patent number: 8969972
    Abstract: A semiconductor structure comprising an SRAM/inverter cell and a method for forming the same are provided, wherein the SRAM/inverter cell has an improved write margin. The SRAM/inverter cell includes a pull-up PMOS device comprising a gate dielectric over the semiconductor substrate, a gate electrode on the gate dielectric wherein the gate electrode comprises a p-type impurity and an n-type impurity, and a stressor formed in a source/drain region. The device drive current of the pull-up PMOS device is reduced due to the counter-doping of the gate electrode.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 3, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chun-Yi Lee, Harry-Hak-Lay Chuang, Ping-Wei Wang, Kong-Beng Thei
  • Patent number: 8947900
    Abstract: SRAM cells and SRAM cell arrays are described. In one embodiment, an SRAM cell includes a first inverter and a second inverter cross-coupled with the first inverter to form a first data storage node and a complimentary second data storage node for latching a value. The SRAM cell further includes a first pass-gate transistor and a switch transistor. A first source/drain of the first pass-gate transistor is coupled to the first data storage node, and a second source/drain of the first pass-gate transistor is coupled to a first bit line. The first source/drain of the switch transistor is coupled to the gate of the first pass-gate transistor.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 3, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Huai-Ying Huang, Yu-Kuan Lin, Sheng Chiang Hung, Feng-Ming Chang, Jui-Lin Chen, Ping-Wei Wang
  • Patent number: 8940589
    Abstract: The present disclosure relates to methods for fabricating a field-effect transistor. The method includes performing a pocket implantation to a semiconductor substrate; thereafter forming a polysilicon layer on the semiconductor substrate; and patterning the polysilicon layer to form a polysilicon gate. The field-effect transistor (FET) includes a well of a first type dopant, formed in a semiconductor substrate; a metal gate disposed on the semiconductor substrate and overlying the well; a channel formed in the semiconductor substrate and underlying the metal gate; source and drain regions of a second type dopant opposite from the first type, the source and drain regions being formed in the semiconductor substrate and on opposite sides of the channel; and a pocket doping profile of the first type dopant and being defined in the well to form a continuous and uniform doping region from the source region to the drain region.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: January 27, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng Chiang Hung, Huai-Ying Huang, Ping-Wei Wang
  • Patent number: 8908409
    Abstract: SRAM cells and SRAM cell arrays are described. In one embodiment, an SRAM cell includes a first inverter and a second inverter cross-coupled with the first inverter to form a first data storage node and a complimentary second data storage node for latching a value. The SRAM cell further includes a first pass-gate transistor and a switch transistor. A first source/drain of the first pass-gate transistor is coupled to the first data storage node, and a second source/drain of the first pass-gate transistor is coupled to a first bit line. The first source/drain of the switch transistor is coupled to the gate of the first pass-gate transistor.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: December 9, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Huai-Ying Huang, Yu-Kuan Lin, Sheng Chiang Hung, Feng-Ming Chang, Jui-Lin Chen, Ping-Wei Wang
  • Publication number: 20140254248
    Abstract: SRAM cells and SRAM cell arrays are described. In one embodiment, an SRAM cell includes a first inverter and a second inverter cross-coupled with the first inverter to form a first data storage node and a complimentary second data storage node for latching a value. The SRAM cell further includes a first pass-gate transistor and a switch transistor. A first source/drain of the first pass-gate transistor is coupled to the first data storage node, and a second source/drain of the first pass-gate transistor is coupled to a first bit line. The first source/drain of the switch transistor is coupled to the gate of the first pass-gate transistor.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Huai-Ying Huang, Yu-Kuan Lin, Sheng Chiang Hung, Feng-Ming Chang, Jui-Lin Chen, Ping-Wei Wang
  • Publication number: 20140254249
    Abstract: SRAM cells and SRAM cell arrays are described. In one embodiment, an SRAM cell includes a first inverter and a second inverter cross-coupled with the first inverter to form a first data storage node and a complimentary second data storage node for latching a value. The SRAM cell further includes a first pass-gate transistor and a switch transistor. A first source/drain of the first pass-gate transistor is coupled to the first data storage node, and a second source/drain of the first pass-gate transistor is coupled to a first bit line. The first source/drain of the switch transistor is coupled to the gate of the first pass-gate transistor.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Huai-Ying Huang, Yu-Kuan Lin, Sheng Chiang Hung, Feng-Ming Chang, Jui-Lin Chen, Ping-Wei Wang