Patents by Inventor Li-Sheng Ke

Li-Sheng Ke 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: 10878167
    Abstract: A method including decomposing a conflict graph based on a number of masked to be used to manufacture a semiconductor device. The method further includes determining whether the decomposed conflict graph is a simplified graph based on a comparison between the decomposed conflict graph and a stored conflict graph. The method further includes determining whether the decomposed conflict graph is colorable based on a number of masks used to pattern the layer of the semiconductor device. The method further includes indicating that the conflict graph is colorable in response to a determination that the decomposed conflict graph is colorable.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: December 29, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chung-Yun Cheng, Chin-Chang Hsu, Hsien-Hsin Sean Lee, Jian-Yi Li, Li-Sheng Ke, Wen-Ju Yang
  • Publication number: 20200117848
    Abstract: A method including decomposing a conflict graph based on a number of masked to be used to manufacture a semiconductor device. The method further includes determining whether the decomposed conflict graph is a simplified graph based on a comparison between the decomposed conflict graph and a stored conflict graph. The method further includes determining whether the decomposed conflict graph is colorable based on a number of masks used to pattern the layer of the semiconductor device. The method further includes indicating that the conflict graph is colorable in response to a determination that the decomposed conflict graph is colorable.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventors: Chung-Yun CHENG, Chin-Chang HSU, Hsien-Hsin Sean LEE, Jian-Yi LI, Li-Sheng KE, Wen-Ju YANG
  • Patent number: 10515185
    Abstract: A method of determining colorability of a layer of a semiconductor device includes iteratively decomposing a conflict graph to remove all nodes having fewer links than a threshold number of links. The method further includes determining whether the decomposed conflict graph is a simplified graph based on a comparison between the decomposed conflict graph and a stored conflict graph. The method further includes determining whether the decomposed conflict graph is colorable based on a number of masks used to pattern the layer of the semiconductor device. The method further includes flagging violations in response to a determination that the decomposed conflict graph is not colorable.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: December 24, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chung-Yun Cheng, Chin-Chang Hsu, Hsien-Hsin Sean Lee, Jian-Yi Li, Li-Sheng Ke, Wen-Ju Yang
  • Publication number: 20190171789
    Abstract: A method of determining colorability of a layer of a semiconductor device includes iteratively decomposing a conflict graph to remove all nodes having fewer links than a threshold number of links. The method further includes determining whether the decomposed conflict graph is a simplified graph based on a comparison between the decomposed conflict graph and a stored conflict graph. The method further includes determining whether the decomposed conflict graph is colorable based on a number of masks used to pattern the layer of the semiconductor device. The method further includes flagging violations in response to a determination that the decomposed conflict graph is not colorable.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 6, 2019
    Inventors: Chung-Yun CHENG, Chin-Chang HSU, Hsien-Hsin Sean LEE, Jian-Yi LI, Li-Sheng KE, Wen-Ju YANG
  • Patent number: 10204205
    Abstract: A method of determining colorability of a layer of a semiconductor device includes iteratively decomposing a conflict graph to remove all nodes having fewer links than a threshold number of links. The method further includes determining whether the decomposed conflict graph is a simplified graph. The method further includes partitioning, using a specific purpose processing device, the decomposed conflict graph if the decomposed conflict graph is not a simplified graph. The method further includes determining whether the decomposed conflict graph is colorable based on a number of masks used to pattern the layer of the semiconductor device if the decomposed conflict graph is a simplified graph. The method further includes flagging violations if the decomposed conflict graph is not colorable.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: February 12, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chung-Yun Cheng, Chin-Chang Hsu, Hsien-Hsin Sean Lee, Jian-Yi Li, Li-Sheng Ke, Wen-Ju Yang
  • Publication number: 20170199957
    Abstract: A method of determining colorability of a layer of a semiconductor device includes iteratively decomposing a conflict graph to remove all nodes having fewer links than a threshold number of links. The method further includes determining whether the decomposed conflict graph is a simplified graph. The method further includes partitioning, using a specific purpose processing device, the decomposed conflict graph if the decomposed conflict graph is not a simplified graph. The method further includes determining whether the decomposed conflict graph is colorable based on a number of masks used to pattern the layer of the semiconductor device if the decomposed conflict graph is a simplified graph. The method further includes flagging violations if the decomposed conflict graph is not colorable.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 13, 2017
    Inventors: Chung-Yun CHENG, Chin-Chang HSU, Hsien-Hsin Sean LEE, Jian-Yi LI, Li-Sheng KE, Wen-Ju YANG
  • Patent number: 9465901
    Abstract: A method embodiment includes identifying, by a processor, an empty region in an integrated circuit (IC) layout, wherein the empty region is a region not including any active fins. The method further includes providing a standard dummy fin cell and forming an expanded dummy fin cell. The standard dummy fin cell includes a plurality of partitions. The expanded dummy fin cell is larger than the standard dummy fin cell, and the expanded dummy fin cell includes integer multiples of each of the plurality of partitions. The empty region is filled with a plurality of dummy fin cells, wherein the plurality of dummy fin cells includes the expanded dummy fin cell. The plurality of dummy fin cells is implemented in an IC.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: October 11, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Sheng Ke, Jia-Rong Hsu, Hung-Lung Lin, Wen-Ju Yang
  • Publication number: 20150278420
    Abstract: A method embodiment includes identifying, by a processor, an empty region in an integrated circuit (IC) layout, wherein the empty region is a region not including any active fins. The method further includes providing a standard dummy fin cell and forming an expanded dummy fin cell. The standard dummy fin cell includes a plurality of partitions. The expanded dummy fin cell is larger than the standard dummy fin cell, and the expanded dummy fin cell includes integer multiples of each of the plurality of partitions. The empty region is filled with a plurality of dummy fin cells, wherein the plurality of dummy fin cells includes the expanded dummy fin cell. The plurality of dummy fin cells is implemented in an IC.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 1, 2015
    Inventors: Li-Sheng Ke, Jia-Rong Hsu, Hung-Lung Lin, Wen-Ju Yang
  • Patent number: 9147029
    Abstract: A method embodiment includes identifying, by a processor, an empty region in an integrated circuit (IC) layout, wherein the empty region is a region not including any active fins. The method further includes providing a standard dummy fin cell and forming an expanded dummy fin cell. The standard dummy fin cell includes a plurality of partitions. The expanded dummy fin cell is larger than the standard dummy fin cell, and the expanded dummy fin cell includes integer multiples of each of the plurality of partitions. The empty region is filled with a plurality of dummy fin cells, wherein the plurality of dummy fin cells includes the expanded dummy fin cell. The plurality of dummy fin cells is implemented in an IC.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: September 29, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Sheng Ke, Jia-Rong Hsu, Wen-Ju Yang, Hung-Lung Lin
  • Publication number: 20140325466
    Abstract: A method embodiment includes identifying, by a processor, an empty region in an integrated circuit (IC) layout, wherein the empty region is a region not including any active fins. The method further includes providing a standard dummy fin cell and forming an expanded dummy fin cell. The standard dummy fin cell includes a plurality of partitions. The expanded dummy fin cell is larger than the standard dummy fin cell, and the expanded dummy fin cell includes integer multiples of each of the plurality of partitions. The empty region is filled with a plurality of dummy fin cells, wherein the plurality of dummy fin cells includes the expanded dummy fin cell. The plurality of dummy fin cells is implemented in an IC.
    Type: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Inventors: Li-Sheng Ke, Jia-Rong Hsu, Wen-Ju Yang, Hung-Lung Lin
  • Patent number: 8869090
    Abstract: A method embodiment includes identifying an empty region in an integrated circuit (IC) layout, wherein the empty region is a region not including any active fins and outside a minimum spacing boundary, applying a grid map over the empty region, wherein the grid map comprises a plurality of grids inside the empty region, and filling the empty region with a plurality of dummy fin cells by placing a dummy fin cell in each of the plurality of grids, wherein applying the grid map and filling the empty region is performed using a computer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 21, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Sheng Ke, Min-Yuan Tsai, Jia-Rong Hsu, Hung-Lung Lin, Wen-Ju Yang
  • Publication number: 20140258961
    Abstract: A method embodiment includes identifying an empty region in an integrated circuit (IC) layout, wherein the empty region is a region not including any active fins and outside a minimum spacing boundary, applying a grid map over the empty region, wherein the grid map comprises a plurality of grids inside the empty region, and filling the empty region with a plurality of dummy fin cells by placing a dummy fin cell in each of the plurality of grids, wherein applying the grid map and filling the empty region is performed using a computer.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 11, 2014
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Sheng Ke, Min-Yuan Tsai, Jia-Rong Hsu, Hung-Lung Lin, Wen-Ju Yang
  • Patent number: D495409
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 31, 2004
    Inventor: Li-Sheng Ke