Patents by Inventor Wen-Tsung Li

Wen-Tsung Li 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: 10514390
    Abstract: A probe structure is provided, including two probe heads for electrically contacting with the two objects, respectively, an elastic buffer portion forming a hollow space therein, a conductive portion being disposed within the hollow space and thereby being surrounded by the elastic buffer portion, and having two ends respectively electrically being connected to the two probe heads. When the two probe heads do not contact with the two objects electrically, the conductive portion is linearly extended between the two probe heads.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: December 24, 2019
    Assignee: CHUNGHWA PRECISION TEST TECH. CO., LTD.
    Inventors: Wen Tsung Li, Kai Chieh Hsieh, Chih-Peng Hsieh
  • Patent number: 10060949
    Abstract: A probe device of a vertical probe card is provided and includes a die assembly and at least one pin assembly. The die assembly includes a first die, a second die, and a middle die disposed between the first die and the second die. The at least one pin assembly has a first pin, a second pin, and at least one electrical connector. The at least one electrical connector is connected to the first pin and the second pin. The at least one pin assembly is electrically contacted with at least one contact pad of a device under test. The at least one contact pad leans against the at least one pin assembly, so that the at least one pin assembly generates a deformation in a longitudinal direction.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 28, 2018
    Assignee: CHUNGHWA PRECISION TEST TECH. CO., LTD.
    Inventors: Wen Tsung Li, Kai Chieh Hsieh
  • Publication number: 20180059140
    Abstract: A probe device of a vertical probe card is provided and includes a die assembly and at least one pin assembly. The die assembly includes a first die, a second die, and a middle die disposed between the first die and the second die. The at least one pin assembly has a first pin, a second pin, and at least one electrical connector. The at least one electrical connector is connected to the first pin and the second pin. The at least one pin assembly is electrically contacted with at least one contact pad of a device under test. The at least one contact pad leans against the at least one pin assembly, so that the at least one pin assembly generates a deformation in a longitudinal direction.
    Type: Application
    Filed: February 17, 2017
    Publication date: March 1, 2018
    Applicant: CHUNGHWA PRECISION TEST TECH. CO., LTD.
    Inventors: Wen Tsung LI, Kai Chieh HSIEH
  • Publication number: 20180017593
    Abstract: A probe structure is provided, including two probe heads for electrically contacting with the two objects, respectively, an elastic buffer portion forming a hollow space therein, a conductive portion being disposed within the hollow space and thereby being surrounded by the elastic buffer portion, and having two ends respectively electrically being connected to the two probe heads. When the two probe heads do not contact with the two objects electrically, the conductive portion is linearly extended between the two probe heads.
    Type: Application
    Filed: February 8, 2017
    Publication date: January 18, 2018
    Applicant: CHUNGHWA PRECISION TEST TECH. CO., LTD.
    Inventors: Wen Tsung LI, Kai Chieh HSIEH, Chih-Peng HSIEH
  • Publication number: 20170367183
    Abstract: A circuit board with via capacitor structure is introduced herein, including a base, a deposition layer, disposed on the base, having at least a via in the deposition layer, at least a thin film capacitor, each thin film capacitor disposed in each via, each thin film capacitor having a body, a second terminal, and a first terminal, the second terminal and the first terminal located on two opposite sides of the body; at least a first electrode, each first electrode electrically connected to the first terminal of each thin film capacitor; and at least a second electrode, each second electrode electrically connected to the second terminal of each thin film capacitor.
    Type: Application
    Filed: January 12, 2017
    Publication date: December 21, 2017
    Applicant: CHUNGHWA PRECISION TEST TECH. CO., LTD.
    Inventors: Wen Tsung LI, Kai Chieh HSIEH, I Hsing WENG
  • Publication number: 20170315152
    Abstract: A stack type test interface board assembly is provided herein, which comprises: a space transform board having a narrow pitch transform board and a wide pitch transform board, a plurality of first connection nodes disposed on a side of the narrow pitch transform board to be electrically connected to a finished or semi-finished semiconductor product, a plurality of second connection nodes disposed on a side of the wide pitch transform board, and a printed circuit board where a side thereof is electrically connected to the plurality of the second connection nodes. The narrow pitch transform board and the wide pitch transform board are assembled in perpendicular stack into the space transform board. A pitch between each two of the plurality of the first connection nodes is smaller than a pitch between each two of the plurality of the second connection nodes.
    Type: Application
    Filed: December 29, 2016
    Publication date: November 2, 2017
    Inventors: Cheng-Juei LIN, Wen Tsung LI, Yuan - Chiang TENG, Kai Chieh HSIEH
  • Publication number: 20100231776
    Abstract: A personal protection device with wireless video and audio transmission capability includes a housing mounted with a lighting element, a camera, an electric shock electrode set, a display panel, a key set, a mode switch, an electric shock activating button and a circuit module. In use, a user on patrol can use the camera and the microphone to record video and audio data in real time, and activate the electric shock electrode to produce a high voltage for self-defense while confronting attacks. The recorded video and audio data is wirelessly transmitted to a remote monitoring center in real time.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 16, 2010
    Inventors: Wen-Tsung Li, Yen-Hung Lay