Patents by Inventor Shih-Hsing Wang

Shih-Hsing 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: 20110085388
    Abstract: This invention provides a system in package integrated circuit with self-generating reference voltage, in which includes a logic circuit chip and a memory chip. The logic circuit chip generates a plurality of output signals, and the memory chip includes a plurality of input circuit receiving the plurality of output signals from the logic circuit chip. The memory chip further includes a voltage generator generating an input reference voltage based on an output supply voltage. The memory chip is compatible with DDR standard and the plurality of input circuit thereof is compatible with SSTL_2 standard. Wherein, each input circuit comprises a comparator with a first input terminal receiving one of the plurality of output signals and a second input terminal receiving the input reference voltage.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 14, 2011
    Inventors: Shih-Hsing Wang, Der-Min Yuan
  • Patent number: 7924641
    Abstract: Circuits and methods to minimize power required for sensing and precharge of DRAMs have been achieved. A control circuit ensures that during READ operations the duration of sensing of DRAM cell and precharging is kept to a minimum. A test DRAM cell is used to determine the exact time required for data sensing. Furthermore no precharging is performed during WRITE-operations. In case data is changing from “1” to “0” or vice versa data lines are inverted accordingly during WRITE operation.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: April 12, 2011
    Assignee: Etron Technology, Inc.
    Inventors: Der-Min Yuan, Shih-Hsing Wang
  • Publication number: 20100269001
    Abstract: Testing system capable of detecting different kinds of memory faults of a memory under I/O compression includes a data pattern selection circuit, writing pattern selection units, reading pattern selection units, and a data comparison circuit. The data pattern selection circuit converts a testing data into different data patterns by the writing pattern selection units and accordingly writes to the corresponding memory data ends in order to allow the corresponding memory cells to store the data with the corresponding data pattern. The data comparison circuit executes reverse-converting through the reading pattern selection units for comparing if the data stored in the memory cells corresponding to each memory data end are matched and accordingly determines if a failure memory cell exists in the memory.
    Type: Application
    Filed: November 11, 2009
    Publication date: October 21, 2010
    Inventors: Shih-Hsing Wang, Kuo-Hua Lee, Chih-Ming Cheng
  • Publication number: 20100103753
    Abstract: A data detecting apparatus and a data detecting method are disclosed in the embodiments of the present invention. The data detecting apparatus operates according to a clock signal with a predetermined period. The data detecting apparatus comprises a plurality of memory cells, a plurality of data lines, a plurality of bit lines, a plurality of sense amplifiers and a pre-charge control circuit.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 29, 2010
    Inventors: Shih-Hsing WANG, Der-Min Yuan, Bor-Doou Rong, Chun Shiah
  • Patent number: 7663949
    Abstract: The present invention discloses a memory row architecture having memory row redundancy repair function. The memory row architecture includes a plurality of normal memory sections and a plurality of redundancy memory sections, wherein a number of the plurality of normal memory sections is more than two, a number of the plurality of redundancy memory sections is equal to the number of the plurality of normal memory sections, and a redundancy memory section is implemented in one side of each of the plurality of normal memory sections. In addition, the plurality of normal memory sections and the plurality of redundancy memory sections respectively having an odd serial number make up a first memory row redundancy repair module, and the plurality of normal memory sections and the plurality of redundancy memory sections respectively having an even serial number make up a second memory row redundancy repair module.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: February 16, 2010
    Assignee: Etron Technology, Inc.
    Inventors: Shih-Hsing Wang, Der-Min Yuan
  • Patent number: 7475305
    Abstract: A method to optimize a data strobe for a multiple circuit, automatic test system is achieved. The method comprises, first, probing, in parallel, a circuit group wherein the circuit group comprises a plurality of circuits. Next, a data strobe of an automatic test system is initialized to a strobe set point relative to a system clock cycle. Next, the function of each of the circuits is partially tested, in parallel, using the strobe set point. Next, the circuit yield of the circuit group from the step of partially testing at the strobe set point is logged. Next, the data strobe is updated to a new strobe set point. Next, the steps of testing, logging, and updating are repeated until a specified range of strobe set points is completed. Finally, the data strobe is set for the circuit group to the strobe set point associated with the highest circuit yield.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: January 6, 2009
    Assignee: Etron Technology, Inc.
    Inventors: Tah-Kang Joseph Ting, Shih-Hsing Wang, Hong-Jie Chen
  • Publication number: 20080316845
    Abstract: The present invention discloses a memory row architecture having memory row redundancy repair function. The memory row architecture includes a plurality of normal memory sections and a plurality of redundancy memory sections, wherein a number of the plurality of normal memory sections is more than two, a number of the plurality of redundancy memory sections is equal to the number of the plurality of normal memory sections, and a redundancy memory section is implemented in one side of each of the plurality of normal memory sections. In addition, the plurality of normal memory sections and the plurality of redundancy memory sections respectively having an odd serial number make up a first memory row redundancy repair module, and the plurality of normal memory sections and the plurality of redundancy memory sections respectively having an even serial number make up a second memory row redundancy repair module.
    Type: Application
    Filed: July 27, 2007
    Publication date: December 25, 2008
    Inventors: Shih-Hsing Wang, Der-Min Yuan
  • Publication number: 20080219071
    Abstract: Circuits and methods to minimize power required for sensing and precharge of DRAMs have been achieved. A control circuit ensures that during READ operations the duration of sensing of DRAM cell and precharging is kept to a minimum. A test DRAM cell is used to determine the exact time required for data sensing. Furthermore no precharging is performed during WRITE-operations. In case data is changing from “1” to “0” or vice versa data lines are inverted accordingly during WRITE operation.
    Type: Application
    Filed: March 27, 2008
    Publication date: September 11, 2008
    Inventors: Der-Min Yuan, Shih-Hsing Wang
  • Publication number: 20080181028
    Abstract: Circuits and methods to minimize power required for sensing and precharge of DRAMs have been achieved. A control circuit ensures that during READ operations the duration of sensing of DRAM cell and precharging is kept to a minimum. A test DRAM cell is used to determine the exact time required for data sensing. Furthermore no precharging is performed during WRITE-operations. In case data is changing from “1” to “0” or vice versa data lines are inverted accordingly during WRITE operation.
    Type: Application
    Filed: March 27, 2008
    Publication date: July 31, 2008
    Inventors: Der-Min Yuan, Shih-Hsing Wang
  • Patent number: 7359265
    Abstract: Circuits and methods to minimize power required for sensing and precharge of DRAMs have been achieved. A control circuit ensures that during READ operations the duration of sensing of DRAM cell and precharging is kept to a minimum. A test DRAM cell is used to determine the exact time required for data sensing. Furthermore no precharging is performed during WRITE-operations. In case data is changing from “1” to “0” or vice versa data lines are inverted accordingly during WRITE operation.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: April 15, 2008
    Assignee: Etron Technology, Inc.
    Inventors: Der-Min Yuan, Shih-Hsing Wang
  • Publication number: 20080048727
    Abstract: A sense amplifier-based latch is provided. It comprises an input circuit, a sense amplifier, a latch circuit and an output circuit. By employing the latch circuit, the variation frequency of an output signal and a complementary output signal as well as lots of charge consumption is reduced. Accordingly, the invention has less glitches and malfunctions, thus suitable for high-speed circuit applications.
    Type: Application
    Filed: June 13, 2007
    Publication date: February 28, 2008
    Inventors: Der-Min Yuan, Shih-Hsing Wang
  • Publication number: 20070153600
    Abstract: Circuits and methods to minimize power required for sensing and precharge of DRAMs have been achieved. A control circuit ensures that during READ operations the duration of sensing of DRAM cell and precharging is kept to a minimum. A test DRAM cell is used to determine the exact time required for data sensing. Furthermore no precharging is performed during WRITE-operations. In case data is changing from “1” to “0” or vice versa data lines are inverted accordingly during WRITE operation.
    Type: Application
    Filed: January 4, 2006
    Publication date: July 5, 2007
    Inventors: Der-Min Yuan, Shih-Hsing Wang
  • Publication number: 20050243613
    Abstract: A method to optimize a data strobe for a multiple circuit, automatic test system is achieved. The method comprises, first, probing, in parallel, a circuit group wherein the circuit group comprises a plurality of circuits. Next, a data strobe of an automatic test system is initialized to a strobe set point relative to a system clock cycle. Next, the function of each of the circuits is partially tested, in parallel, using the strobe set point. Next, the circuit yield of the circuit group from the step of partially testing at the strobe set point is logged. Next, the data strobe is updated to a new strobe set point. Next, the steps of testing, logging, and updating are repeated until a specified range of strobe set points is completed. Finally, the data strobe is set for the circuit group to the strobe set point associated with the highest circuit yield.
    Type: Application
    Filed: July 5, 2005
    Publication date: November 3, 2005
    Inventors: Tah-Kang Joseph Ting, Shih-Hsing Wang, Hong-Jie Chen
  • Patent number: 6943044
    Abstract: A method to optimize a data strobe for a multiple circuit, automatic test system is achieved. The method comprises, first, probing, in parallel, a circuit group wherein the circuit group comprises a plurality of circuits. Next, a data strobe of an automatic test system is initialized to a strobe set point relative to a system clock cycle. Next, the function of each of the circuits is partially tested, in parallel, using the strobe set point. Next, the circuit yield of the circuit group from the step of partially testing at the strobe set point is logged. Next, the data strobe is updated to a new strobe set point. Next, the steps of testing, logging, and updating are repeated until a specified range of strobe set points is completed. Finally, the data strobe is set for the circuit group to the strobe set point associated with the highest circuit yield.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: September 13, 2005
    Assignee: Etron Technology, Inc.
    Inventors: Tah-Kang Joseph Ting, Shih-Hsing Wang, Hong-Jie Chen