Patents by Inventor Sang-Mao Chiu

Sang-Mao Chiu 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: 20210217707
    Abstract: A semiconductor package includes a substrate component having a first surface, a second surface opposite to the first surface, and a sidewall surface extending between the first surface and the second surface; a re-distribution layer (RDL) structure disposed on the first surface and electrically connected to the first surface through first connecting elements comprising solder bumps or balls; a plurality of ball grid array (BGA) balls mounted on the second surface of the substrate component; and at least one integrated circuit die mounted on the RDL structure through second connecting elements.
    Type: Application
    Filed: December 3, 2020
    Publication date: July 15, 2021
    Inventors: Yi-Lin Tsai, Shih-Chao Chiu, Wen-Sung Hsu, Sang-Mao Chiu, Chi-Yuan Chen, Yao-Pang Hsu
  • Publication number: 20050266672
    Abstract: A wire-bonding method for chips with copper interconnects by introducing a thin layer is provided for solving the problem of oxidizing a copper bonding-pad during bonding processing in order not to deteriorate the bonding strength and yield rate thereof. The wire-bonding method of the present invention comprises: a step for providing a chip with a copper bonding-pad; another step for providing an aqueous solution to form a Cuprous oxide thin layer on the copper bonding-pad; and yet another step for setting a plurality of copper interconnects on the copper bonding-pad and providing an ultrasonic power for removing the Cuprous oxide layer to have the interconnects bonded on the copper bonding-pad.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 1, 2005
    Inventors: Yeau-Ren Jeng, Sang-Mao Chiu
  • Patent number: 6962864
    Abstract: A wire-bonding method for chips with copper interconnects by introducing a thin layer is provided for solving the problem of oxidizing a copper bonding-pad during bonding processing in order not to deteriorate the bonding strength and yield rate thereof. The wire-bonding method of the present invention comprises: a step for providing a chip with a copper bonding-pad; another step for providing an aqueous solution to form a Cuprous oxide thin layer on the copper bonding-pad; and yet another step for setting a plurality of copper interconnects on the copper bonding-pad and providing an ultrasonic power for removing the Cuprous oxide layer to have the interconnects bonded on the copper bonding-pad.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: November 8, 2005
    Assignee: National Chung Cheng University
    Inventors: Yeau-Ren Jeng, Sang-Mao Chiu