Patents by Inventor J-Fang Cheng

J-Fang Cheng 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: 20090001567
    Abstract: A bumped chip has a plurality of finger-like bumps bonded on multiple openings of a chip. The chip primarily comprises a plurality of bonding pads and a passivation layer having a plurality of opening thereon. In one embodiment, the openings on each bonding pad are plural and disposed in linear, in parallel, or in an array. The finger-like bumps are protrusively disposed on the chip and each has a bump core and an extension finger. The bump cores are disposed within the corresponding bonding pads and cover the openings, and the extension fingers are disposed outside the corresponding bonding pads to maintain the bonding strengths of the bumps even at fine pitches. In an embodiment, the extension fingers overlap at least a trace of the chip.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 1, 2009
    Inventors: Ho-Cheng Shih, Chun-Yuan Wang, J-Fang Cheng, Chiung-Lin Wang, Suen-Wen Chung