Patents by Inventor Yi-Kan Cheng

Yi-Kan Cheng 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: 7801717
    Abstract: A method involves providing a circuit pattern, generating a density report for the circuit pattern that identifies a feasible area for dummy insertion, simulating a planarization process with the density report and identifying a hot spot on the circuit pattern, inserting a virtual dummy pattern in the feasible area and adjusting the density report accordingly, and thereafter simulating the planarization process with the adjusted density until the hot spot is eliminated.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: September 21, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd
    Inventors: Gwan Sin Chang, Yi-Kan Cheng, Cliff Hou
  • Publication number: 20100205577
    Abstract: A method of forming integrated circuits for a wafer includes providing an E-Beam direct write (EBDW) system. A grid is generated for the wafer, wherein the grid includes grid lines. An integrated circuit is laid out for the wafer, wherein substantially no sensitive features in the integrated circuit cross the grid lines of the grid. An EBDW is performed on the wafer using the EBDW system.
    Type: Application
    Filed: November 12, 2009
    Publication date: August 12, 2010
    Inventors: Lee-Chung Lu, Yi-Kan Cheng, Ru-Gun Liu, Chih-Ming Lai
  • Publication number: 20100199253
    Abstract: A method of designing a double patterning mask set includes dividing a chip into a grid comprising grid cells; and laying out a metal layer of the chip. In substantially each of the grid cells, all left-boundary patterns of the metal layer are assigned with a first one of a first indicator and a second indicator, and all right-boundary patterns of the metal layer are assigned with a second one of the first indicator and the second indicator. Starting from one of the grid cells in a row, indicator changes are propagated throughout the row. All patterns in the grid cells are transferred to the double patterning mask set, with all patterns assigned with the first indicator transferred to a first mask of the double patterning mask set, and all patterns assigned with the second indicator transferred to a second mask of the double patterning mask set.
    Type: Application
    Filed: November 12, 2009
    Publication date: August 5, 2010
    Inventors: Yi-Kan Cheng, Lee-Chung Lu, Ru-Gun Liu, Chih-Ming Lai
  • Publication number: 20100196803
    Abstract: A method of designing a double patterning mask set for a layout of a chip includes designing standard cells. In each of the standard cells, all left-boundary patterns are assigned with one of a first indicator and a second indicator, and all right-boundary patterns are assigned with an additional one of the first indicator and the second indicator. The method further includes placing the standard cells in a row of the layout of the chip. Starting from one of the standard cells in the row, indicator changes to the standard cells are propagated throughout the row. All patterns in the standard cells having the first indicator are transferred to a first mask of the double patterning mask set. All patterns in the standard cells having the second indicator are transferred to a second mask of the double patterning mask set.
    Type: Application
    Filed: November 12, 2009
    Publication date: August 5, 2010
    Inventors: Lee-Chung Lu, Yi-Kan Cheng, Yuan-Te Hou, Yung-Chin Hou, Li-Chun Tien
  • Publication number: 20100199238
    Abstract: A method for integrated circuit design includes providing a layout of an integrated circuit; determining key parameters of the integrated circuit; determining target values of the key parameters; and performing a first shrinkage of the layout using a first shrink percentage to generate a shrunk layout. The shrunk layout is evaluated by generating values of the key parameters from the shrunk layout. A portion of the values of the key parameters failing to meet respective ones of the target values is found. Guidelines for tuning manufacturing processes of the shrunk layout are provided, so that the portion of the values of the key parameters can meet the respective ones of the target values.
    Type: Application
    Filed: November 12, 2009
    Publication date: August 5, 2010
    Inventors: Fu-Chieh Hsu, Louis Chao-Chiuan Liu, Lee-Chung Lu, Yi-Kan Cheng
  • Patent number: 7725861
    Abstract: Efficient and cost-effective systems and methods for detecting and correcting hot spots of semiconductor devices are disclosed. In one aspect, a method for creating a layout from a circuit design is described. The method includes applying a first set of hot spot conditions to a global route to produce a detailed route; applying a second set of hot spot conditions to the detailed route to produce a post-detailed route; and applying a third set of hot spot conditions to the post-detailed route to produce the layout. In another aspect, a method includes providing a circuit design; applying a first hot spot filter to a global routing of the circuit design to produce a detailed route; applying a less pessimistic, second hot spot filter to the detailed route to produce a post-detailed route; and performing a rip-up and reroute of the post-detailed route to produce a final layout.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: May 25, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Kan Cheng, Chih-Ming Lai, Ru-Gun Liu
  • Publication number: 20100095253
    Abstract: Disclosed is a system and method for integrated circuit designs and post layout analysis. The integrated circuit design method includes providing a plurality of IC devices with various design dimensions; collecting electrical performance data of the IC devices; extracting equivalent dimensions of the IC devices; generating a shape related model to relate the equivalent dimensions to the electrical performance data of the IC devices; and creating a data refinement table using the equivalent dimensions and the electrical performance data.
    Type: Application
    Filed: October 13, 2008
    Publication date: April 15, 2010
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yung-Chin HOU, Ying-Chou CHENG, Ru-Gun LIU, Chih-Ming LAI, Yi-Kan CHENG, Chung-Kai LIN, Hsiao-Shu CHAO, Ping-Heng YEH, Min-Hong WU, Yao-Ching KU, Tsong-Hua OU
  • Publication number: 20090222785
    Abstract: An integrated circuit (IC) design method includes providing an IC layout contour based on an IC design layout of an IC device and IC manufacturing data; generating an effective rectangle layout to represent the IC layout contour; and simulating the IC device using the effective rectangular layout.
    Type: Application
    Filed: September 16, 2008
    Publication date: September 3, 2009
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ying-Chou CHENG, Chih-Ming LAI, Ru-Gun LIU, Tsong-Hua OU, Min-Hong WU, Yih-Yuh DOONG, Hsiao-Shu CHAO, Yi-Kan CHENG, Yao-Ching KU, Cliff HOU
  • Publication number: 20090172617
    Abstract: A verification system for verifying an integrated circuit design is provided. The verification system includes a functional block finding module configured to identify potential sensitive circuits in the integrated circuit design; and a search module. The search module is configured to find sensitive circuits from the potential sensitive circuits; and verify the sensitive circuits.
    Type: Application
    Filed: March 24, 2008
    Publication date: July 2, 2009
    Inventors: Chi-Heng Huang, Gary Lin, Chu-Fu Chen, Yi-Kan Cheng, Fu-Lung Hsueh
  • Publication number: 20090055782
    Abstract: A method for designing and manufacturing integrated circuits is provided. The method includes providing a modeling parameter set for manufacturing an integrated circuit; dividing the modeling parameter set into time-dependent data and time-independent data; saving substantially all time-independent data into a design library; and saving substantially all time-dependent data into a design-for-manufacturing (DFM) data kit, wherein the DFM data kit is external to the design library.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 26, 2009
    Inventors: Chung-Min Fu, Yi-Kan Cheng
  • Patent number: 7467365
    Abstract: This invention discloses a method for sanity checking integrated circuit (IC) designs based on one or more predefined sub-circuits with at least one predefined checking criteria, the method comprising automatically reading one or more netlists, identifying one or more sub-circuits in the netlists isomorphic to at least one of predefined sub-circuits, identifying one or more device parameters for sanity checking the identified sub-circuits, and comparing the identified device parameters against the predefined checking criteria.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: December 16, 2008
    Assignee: Taiwan Semiconductor Manufacturing Co.
    Inventors: George H. Chang, Yi-Kan Cheng, Chen-Teng Fan, Chen-Lin Yang, Yung-Chin Hou, Chu-Ping James Wang
  • Publication number: 20080176343
    Abstract: A method involves providing a circuit pattern, generating a density report for the circuit pattern that identifies a feasible area for dummy insertion, simulating a planarization process with the density report and identifying a hot spot on the circuit pattern, inserting a virtual dummy pattern in the feasible area and adjusting the density report accordingly, and thereafter simulating the planarization process with the adjusted density until the hot spot is eliminated.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Gwan Sin Chang, Yi-Kan Cheng, Cliff Hou
  • Publication number: 20080072191
    Abstract: This invention discloses a method for sanity checking integrated circuit (IC) designs based on one or more predefined sub-circuits with at least one predefined checking criteria, the method comprising automatically reading one or more netlists, identifying one or more sub-circuits in the netlists isomorphic to at least one of predefined sub-circuits, identifying one or more device parameters for sanity checking the identified sub-circuits, and comparing the identified device parameters against the predefined checking criteria.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 20, 2008
    Inventors: George H. Chang, Yi-Kan Cheng, Chen-Teng Fan, Chen-Lin Yang, Yung-Chin Hou, Chu-Ping James Wang
  • Publication number: 20070266360
    Abstract: An integrated circuit (IC) design method includes providing a design layout defined in a plurality of grids; simulating a chemical mechanical polishing (CMP) process to an IC substrate with a patterned structure defined by the design layout, generating a dielectric thickness and a metal thickness on one of the plurality of grids; extracting a capacitance based on the dielectric thickness on the one of the plurality of grids; and extracting a resistance based on the metal thickness on the one of the plurality of grids.
    Type: Application
    Filed: March 20, 2007
    Publication date: November 15, 2007
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Kan Cheng, Ke-Ying Su, Victor C. Y. Chang
  • Publication number: 20070266248
    Abstract: An encryption and decryption interface for integrated circuit (IC) design with design-for-manufacturing (DFM). The interface includes a decryption module embedded in an IC design tool; an encrypted DFM data provided to an IC designer authorized for utilizing the encrypted DFM data; and a private key provided to the IC designer for decrypting the encrypted DFM data in the IC design tool.
    Type: Application
    Filed: March 16, 2007
    Publication date: November 15, 2007
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Kan Cheng, Gwan Sin Chang, Jill Liu, Hsiao-Shu Chiao
  • Publication number: 20070266352
    Abstract: Efficient and cost-effective systems and methods for detecting and correcting hot spots of semiconductor devices are disclosed. In one aspect, a method for creating a layout from a circuit design is described. The method includes applying a first set of hot spot conditions to a global route to produce a detailed route; applying a second set of hot spot conditions to the detailed route to produce a post-detailed route; and applying a third set of hot spot conditions to the post-detailed route to produce the layout. In another aspect, a method includes providing a circuit design; applying a first hot spot filter to a global routing of the circuit design to produce a detailed route; applying a less pessimistic, second hot spot filter to the detailed route to produce a post-detailed route; and performing a rip-up and reroute of the post-detailed route to produce a final layout.
    Type: Application
    Filed: March 21, 2007
    Publication date: November 15, 2007
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Kan Cheng, Chih-Ming Lai, Ru-Gun Liu
  • Publication number: 20070266356
    Abstract: An integrated circuit (IC) design method includes providing IC design layout data; simulating a chemical mechanical polishing (CMP) process to a material layer based on the IC design layout, to generate various geometrical parameters; extracting resistance and capacitance based on the various geometrical parameters from the simulating of the CMP process; and performing circuit timing analysis based on the extracted resistance and capacitance.
    Type: Application
    Filed: March 20, 2007
    Publication date: November 15, 2007
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Gwan Sin Chang, Yi-Kan Cheng, Ivy Chiu, Ke-Ying Su