Patents by Inventor Chih-Hui Yeh

Chih-Hui Yeh 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: 10613128
    Abstract: A testing device includes a transfer interface, a tester, a first socket group and a second socket group. The first socket group includes a plurality of tested devices coupled in series and the second socket group includes a plurality of tested devices coupled in series. The tester is electrically connected to the socket group via the transfer interface. The transfer interface is configured to merge a first testing signal with a second testing signal to generate a double frequency testing signal. The double-frequency testing signal and a plurality of control signals are provided to the tested devices in the first socket group and the second socket group to perform the testing procedure on the tested devices of a same tested device pair simultaneously, and performing the testing procedure on the tested device pairs sequentially.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 7, 2020
    Assignee: Powertech Technology Inc.
    Inventors: Chih-Hui Yeh, Ming-Jyun Yu
  • Publication number: 20190052489
    Abstract: The communication interface including a data encoder. The data encoder receives a data package which has at least one first output signal with N bits, generates and outputs at least one transmitting signal during one period of a reference clock signal and determining a voltage level of the transmitting signal according to a logic value of the first output signal, wherein N is an integer larger than 1.
    Type: Application
    Filed: August 8, 2017
    Publication date: February 14, 2019
    Applicant: Powertech Technology Inc.
    Inventors: Chih-Hui Yeh, Ping-Che Lee, Fu-Hsiang Chang
  • Publication number: 20180259558
    Abstract: A testing device includes a transfer interface, a tester, a first socket group and a second socket group. The first socket group includes a plurality of tested devices coupled in series and the second socket group includes a plurality of tested devices coupled in series. The tester is electrically connected to the socket group via the transfer interface. The transfer interface is configured to merge a first testing signal with a second testing signal to generate a double frequency testing signal. The double-frequency testing signal and a plurality of control signals are provided to the tested devices in the first socket group and the second socket group to perform the testing procedure on the tested devices of a same tested device pair simultaneously, and performing the testing procedure on the tested device pairs sequentially.
    Type: Application
    Filed: May 10, 2018
    Publication date: September 13, 2018
    Applicant: Powertech Technology Inc.
    Inventors: Chih-Hui Yeh, Ming-Jyun Yu
  • Patent number: 9998350
    Abstract: A testing device of high-frequency memory comprises a transfer interface, a tester and a socket group. The tester is electrically connected to the socket group via the transfer interface. The transfer interface is configured to merge a first testing signal with a second testing signal to generate a double frequency testing signal, wherein the first testing signal and the second testing signal are outputted by the tester, and through the transfer interface, the double frequency testing signal is shared and transmitted to the socket group for testing at least two memory packages disposed on the socket group.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 12, 2018
    Assignee: Powertech Technology Inc.
    Inventors: Chih-Hui Yeh, Chih-Wei Lee
  • Publication number: 20170118106
    Abstract: A testing device of high-frequency memory comprises a transfer interface, a tester and a socket group. The tester is electrically connected to the socket group via the transfer interface. The transfer interface is configured to merge a first testing signal with a second testing signal to generate a double frequency testing signal, wherein the first testing signal and the second testing signal are outputted by the tester, and through the transfer interface, the double frequency testing signal is shared and transmitted to the socket group for testing at least two memory packages disposed on the socket group.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 27, 2017
    Applicant: Powertech Technology Inc.
    Inventors: Chih-Hui Yeh, Chih-Wei Lee
  • Patent number: 8559252
    Abstract: Disclosed is a memory testing device having cross interconnections of multiple drivers, comprising a first wiring bus and a second wiring bus connected to a first device area and a third wiring bus and a fourth wiring bus connected to a second device area. A first I/O driver module is connected to the first wiring bus through a first driving bus. A second I/O driver module is connected to the third wiring bus through the second driving bus. The fourth wiring bus is Y-shaped connected to the node between the first wiring bus and first driving bus. And, the second wiring bus is Y-shaped connected to the node between the third wiring bus and the second driving bus.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: October 15, 2013
    Assignee: Powertech Technology Inc.
    Inventor: Chih-Hui Yeh
  • Publication number: 20120327729
    Abstract: Disclosed is a memory testing device having cross interconnections of multiple drivers, comprising a first wiring bus and a second wiring bus connected to a first device area and a third wiring bus and a fourth wiring bus connected to a second device area. A first I/O driver module bus is connected to the first wiring bus through a first driving bus. A second I/O driver module bus is connected to the third wiring bus through the second driving bus. The fourth wiring bus is Y-shaped connected to the node between the first wiring bus and first driving bus. And, the second wiring bus is Y-shaped connected to the node between the third wiring bus and the second driving bus.
    Type: Application
    Filed: March 15, 2012
    Publication date: December 27, 2012
    Inventor: Chih-Hui YEH
  • Patent number: 8164356
    Abstract: A testing apparatus and a method for testing a semiconductor devices array, which includes a plurality of rows and a plurality of columns, are provided. The testing apparatus includes a first testing circuit and a second testing circuit. The first testing circuit connects and transmits a clock signal, an input command signal and a data signal to at least one of the rows of the semiconductor devices array. The second testing circuit connects and transmits a selecting signal to at least one of the columns of the semiconductor devices array. Between two devices in a row, a difference in arrival times of the clock signal, a difference in arrival times of the input command signal, and a difference in arrival times of the data signal are equal.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: April 24, 2012
    Assignee: Nanya Technology Corp.
    Inventor: Chih Hui Yeh
  • Publication number: 20100156452
    Abstract: A testing apparatus and a method for testing a semiconductor devices array, which includes a plurality of rows and a plurality of columns, are provided. The testing apparatus includes a first testing circuit and a second testing circuit. The first testing circuit connects and transmits a clock signal, an input command signal and a data signal to at least one of the rows of the semiconductor devices array. The second testing circuit connects and transmits a selecting signal to at least one of the columns of the semiconductor devices array. Between two devices in a row, a difference in arrival times of the clock signal, a difference in arrival times of the input command signal, and a difference in arrival times of the data signal are equal.
    Type: Application
    Filed: June 22, 2009
    Publication date: June 24, 2010
    Applicant: NANYA TECHNOLOGY CORP.,
    Inventor: Chih Hui YEH
  • Publication number: 20090296514
    Abstract: The present invention provides a method for accessing a memory chip. The method includes: positioning a plurality of first input pins and a plurality of second input pins on the memory chip; respectively inputting a plurality of row address signals into the plurality of first input pins, where a length of a row address command package of each row address signal corresponds to a plurality of clock periods of a clock signal, and the row address command package includes a plurality of row input commands; and respectively inputting a plurality of column address signals into the plurality of second input pins, where a length of a column address command package of each column address signal corresponds to a plurality of clock periods of the clock signal, and the column address command package includes a plurality of column input commands.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Inventor: Chih-Hui Yeh
  • Publication number: 20090296444
    Abstract: A memory module includes a plurality of memory sub-modules and a plurality of groups of input pins, where each memory module includes a plurality of memory chips and the memory chips are series-connected. In addition, the plurality of groups of input pins are connected to the plurality of memory modules, respectively, and are utilized to receive the same input signals, where each group of input pins includes a plurality of input pins which are utilized to transmit the input signals to a corresponding memory module.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Inventor: Chih-Hui Yeh
  • Patent number: 7034564
    Abstract: An apparatus for testing a semiconductor device is disclosed. According to the present invention, the apparatus includes a pair of input pins, a first conductive wire, a second conductive wire, a driver and a terminator. A device-under-test (DUT) is connected to one of the pair of input pins. The first conductive wire and the second conductive wire are connected in parallel between the pair of input pins. The driver is coupled to the first conductive wire via a third conductive wire, and the terminator is coupled to the second conductive wire via a fourth conductive wire.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: April 25, 2006
    Assignee: Nanya Technology Corp.
    Inventor: Chih-Hui Yeh
  • Publication number: 20060001441
    Abstract: An apparatus for testing a semiconductor device is disclosed. According to the present invention, the apparatus includes a pair of input pins, a first conductive wire, a second conductive wire, a driver and a terminator. A device-under-test (DUT) is connected to one of the pair of input pins. The first conductive wire and the second conductive wire are connected in parallel between the pair of input pins. The driver is coupled to the first conductive wire via a third conductive wire, and the terminator is coupled to the second conductive wire via a fourth conductive wire.
    Type: Application
    Filed: August 1, 2005
    Publication date: January 5, 2006
    Inventor: Chih-Hui Yeh
  • Publication number: 20050218919
    Abstract: An apparatus for testing a semiconductor device is disclosed. According to the present invention, the apparatus includes a pair of input pins, a first conductive wire, a second conductive wire, a driver and a terminator. A device-under-test (DUT) is connected to one of the pair of input pins. The first conductive wire and the second conductive wire are connected in parallel between the pair of input pins. The driver is coupled to the first conductive wire via a third conductive wire, and the terminator is coupled to the second conductive wire via a fourth conductive wire.
    Type: Application
    Filed: September 27, 2004
    Publication date: October 6, 2005
    Inventor: Chih-Hui Yeh