Patents Assigned to GSI Technology, Inc.
  • Patent number: 8400200
    Abstract: The present disclosure relates to systems and methods of noise reduction and/or power saving. According to one or more illustrative implementations, for example, innovations consistent with delay lines in clock/timing circuits such as Delay-Lock-Loop (DLL) and/or Duty Cycle Correction (DCC) circuits are disclosed.
    Type: Grant
    Filed: July 9, 2011
    Date of Patent: March 19, 2013
    Assignee: GSI Technology, Inc.
    Inventors: Jae Hyeong Kim, Jyn-Bang Shyu, Lee-Lean Shu
  • Patent number: 8116161
    Abstract: The present invention provides a system and method for refreshing a DRAM device without interrupting or inhibiting read and write operations of the DRAM device. The system may includes refresh control circuitry that selectively generates requests to perform refresh operations and a refresh address counter that is coupled to the refresh control circuitry and that generates a refresh address in response to receiving a refresh request. The refresh address corresponds to a word line of the DRAM array to be refreshed. Address control and switching circuitry may be coupled to the refresh control circuitry. The address control and switching circuitry selectively transmits read/write addresses and refresh addresses to the DRAM array, in order to perform refresh operations on the DRAM array without inhibiting read and write operations.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: February 14, 2012
    Assignee: GSI Technology, Inc.
    Inventors: Lee-Lean Shu, Stephen Lee
  • Publication number: 20090179015
    Abstract: A system and method for adjustable laser mark depth is provided. In one embodiment, the system is used in Nd—YAG laser marker for wafer processing in the semiconductor industry, with smart control of the mark depth and expanded work range between the deep mark and the light mark.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 16, 2009
    Applicants: AXT, INC., GSI Technology, Inc.
    Inventors: Xiaodong Zhao, Yingjie Geng
  • Publication number: 20080031069
    Abstract: The present invention provides a system and method for refreshing a DRAM device without interrupting or inhibiting read and write operations of the DRAM device. The system may includes refresh control circuitry that selectively generates requests to perform refresh operations and a refresh address counter that is coupled to the refresh control circuitry and that generates a refresh address in response to receiving a refresh request. The refresh address corresponds to a word line of the DRAM array to be refreshed. Address control and switching circuitry may be coupled to the refresh control circuitry. The address control and switching circuitry selectively transmits read/write addresses and refresh addresses to the DRAM array, in order to perform refresh operations on the DRAM array without inhibiting read and write operations.
    Type: Application
    Filed: October 15, 2007
    Publication date: February 7, 2008
    Applicant: GSI Technology, Inc.
    Inventors: Lee-Lean SHU, Stephen Lee
  • Patent number: 7292490
    Abstract: The present invention provides a system and method for refreshing a DRAM device without interrupting or inhibiting read and write operations of the DRAM device. The system may includes refresh control circuitry that selectively generates requests to perform refresh operations and a refresh address counter that is coupled to the refresh control circuitry and that generates a refresh address in response to receiving a refresh request. The refresh address corresponds to a word line of the DRAM array to be refreshed. Address control and switching circuitry may be coupled to the refresh control circuitry. The address control and switching circuitry selectively transmits read/write addresses and refresh addresses to the DRAM array, in order to perform refresh operations on the DRAM array without inhibiting read and write operations.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: November 6, 2007
    Assignee: GSI Technology, Inc.
    Inventors: Lee-Lean Shu, Stephen Lee
  • Patent number: 7230303
    Abstract: The present invention provides a semiconductor memory device with reduced soft error rate (SER) and a method for fabricating such a device. The semiconductor memory device includes a plurality of implants of impurity ions that provide for a reduced number of minority carriers having less mobility. A fabrication process for the semiconductor memory includes a “non-retrograde” implant of impurity ions that is effective to suppress the mobility and lifetime of minority carriers in the devices, and a “retrograde” implant of impurity ions that is effective to substantially increase the doping concentration at the well bottom to slow down or eliminate additional minority carriers.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: June 12, 2007
    Assignee: GSI Technology, Inc.
    Inventor: I Chi Liao