Patents by Inventor Chih-Chiang Tseng

Chih-Chiang Tseng 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: 20070247176
    Abstract: A method of designing and manufacturing a probe card assembly includes prefabricating one or more elements of the probe card assembly to one or more predefined designs. Thereafter, design data regarding a newly designed semiconductor device is received along with data describing the tester and testing algorithms to be used to test the semiconductor device. Using the received data, one or more of the prefabricated elements is selected. Again using the received data, one or more of the selected prefabricated elements is customized. The probe card assembly is then built using the selected and customized elements.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 25, 2007
    Inventors: Gary Grube, Igor Khandros, Benjamin Eldridge, Gaetan Mathieu, Poya Lotfizadeh, Chih-Chiang Tseng
  • Publication number: 20070097780
    Abstract: A decoding signal circuit is configured to generate a dual operation decoding signal that enables a read operation and a write operation to be performed in one clock cycle. The decoding signal circuit is configured such that a read decoding signal and a write decoding signal are generated and multiplexed together to form the dual operation decoding signal. The memory device receives a read address and a write address consecutively in one cycle to generate the dual operation decoding signal. A single operation, such as a read only operation or a write only operation, can be performed as well as the dual operation of performing the read operation and the write operation in the same cycle.
    Type: Application
    Filed: April 14, 2006
    Publication date: May 3, 2007
    Inventors: Hsin-Ley Chen, Chih-Chiang Tseng, Mu-Hsiang Huang
  • Publication number: 20070080697
    Abstract: A contact resistance measuring circuit is configured to determine the contact resistance of a testing device. The measuring circuit is coupled to a processing circuit and the testing device. The measuring circuit includes a pair of input/output units coupled together via a pass device. Each of the input/output units includes a pull-up device and a pull-down device to provide separate pull-up and pull-down control, respectively. The pull-up devices, the pull-down devices, and the pass device are dynamically configurable such that the measuring circuit uses either a pull-up mode or a pull-down mode to measure voltage and current characteristics of each contact point, or pin, of the testing device. The processing circuit calculates the contact resistance for each pin according to the measured voltage and current characteristics. The calculated contact resistances are used to calibrate the testing device.
    Type: Application
    Filed: April 28, 2006
    Publication date: April 12, 2007
    Inventors: Chih-Chiang Tseng, Patrick Chuang, Chungji Lu
  • Patent number: 7196531
    Abstract: A method of designing and manufacturing a probe card assembly includes prefabricating one or more elements of the probe card assembly to one or more predefined designs. Thereafter, design data regarding a newly designed semiconductor device is received along with data describing the tester and testing algorithms to be used to test the semiconductor device. Using the received data, one or more of the prefabricated elements is selected. Again using the received data, one or more of the selected prefabricated elements is customized. The probe card assembly is then built using the selected and customized elements.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: March 27, 2007
    Assignee: FormFactor, Inc.
    Inventors: Gary W. Grube, Igor Y. Khandros, Benjamin N. Eldridge, Gaetan L. Mathieu, Poya Lotfizadeh, Jim Chih-Chiang Tseng
  • Publication number: 20050146339
    Abstract: A method of designing and manufacturing a probe card assembly includes prefabricating one or more elements of the probe card assembly to one or more predefined designs. Thereafter, design data regarding a newly designed semiconductor device is received along with data describing the tester and testing algorithms to be used to test the semiconductor device. Using the received data, one or more of the prefabricated elements is selected. Again using the received data, one or more of the selected prefabricated elements is customized. The probe card assembly is then built using the selected and customized elements.
    Type: Application
    Filed: March 4, 2005
    Publication date: July 7, 2005
    Inventors: Gary Grube, Igor Khandros, Benjamin Eldridge, Gaetan Mathieu, Poya Lotfizadeh, Chih-Chiang Tseng
  • Patent number: 6911835
    Abstract: A probe system for providing signal paths between an integrated circuit (IC) tester and input/output, power and ground pads on the surfaces of ICs to be tested includes a probe board assembly, a flex cable and a set of probes arranged to contact the IC's I/O pads. The probe board assembly includes one or more rigid substrate layers with traces and vias formed on or within the substrate layers providing relatively low bandwidth signal paths linking the tester to probes accessing some of the IC's pads. The flex cable provides relatively high bandwidth signal paths linking the tester to probes accessing others of the IC's pads. A flex strip may alternatively be disposed behind a substrate with probes.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: June 28, 2005
    Assignee: FormFactor, Inc.
    Inventors: Matthew Chraft, Roy J. Henson, Charles A. Miller, Chih-Chiang Tseng
  • Patent number: 6864105
    Abstract: A method of designing and manufacturing a probe card assembly includes prefabricating one or more elements of the probe card assembly to one or more predefined designs. Thereafter, design data regarding a newly designed semiconductor device is received along with data describing the tester and testing algorithms to be used to test the semiconductor device. Using the received data, one or more of the prefabricated elements is selected. Again using the received data, one or more of the selected prefabricated elements is customized. The probe card assembly is then built using the selected and customized elements.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: March 8, 2005
    Assignee: FormFactor, Inc.
    Inventors: Gary W. Grube, Igor Y. Khandros, Benjamin N. Eldridge, Gaetan L. Mathieu, Poya Lotfizadeh, Chih-Chiang Tseng
  • Publication number: 20040046579
    Abstract: A probe system for providing signal paths between an integrated circuit (IC) tester and input/output, power and ground pads on the surfaces of ICs to be tested includes a probe board assembly, a flex cable and a set of probes arranged to contact the IC's I/O pads. The probe board assembly includes one or more rigid substrate layers with traces and vias formed on or within the substrate layers providing relatively low bandwidth signal paths linking the tester to probes accessing some of the IC's pads. The flex cable provides relatively high bandwidth signal paths linking the tester to probes accessing others of the IC's pads. A flex strip may alternatively be disposed behind a substrate with probes.
    Type: Application
    Filed: May 5, 2003
    Publication date: March 11, 2004
    Applicant: FormFactor, Inc.
    Inventors: Matthew Chraft, Roy J. Henson, Charles A. Miller, Chih-Chiang Tseng
  • Publication number: 20030025172
    Abstract: A method of designing and manufacturing a probe card assembly includes prefabricating one or more elements of the probe card assembly to one or more predefined designs. Thereafter, design data regarding a newly designed semiconductor device is received along with data describing the tester and testing algorithms to be used to test the semiconductor device. Using the received data, one or more of the prefabricated elements is selected. Again using the received data, one or more of the selected prefabricated elements is customized. The probe card assembly is then built using the selected and customized elements.
    Type: Application
    Filed: March 1, 2002
    Publication date: February 6, 2003
    Applicant: FormFactor, Inc.
    Inventors: Gary W. Grube, Igor Y. Khandros, Benjamin N. Eldridge, Gaetan L. Mathieu, Poya Lotfizadeh, Chih-Chiang Tseng