Patents by Inventor Akitsugu Sasaki

Akitsugu Sasaki 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: 8436479
    Abstract: Provided is a method of manufacturing a semiconductor device capable of adhering semiconductor elements and a support member for mounting semiconductor elements, such as lead frames, organic substrates or the like, even in a relatively low temperature range without damaging adhesion property and workability and of suppressing the occurrence of voids.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: May 7, 2013
    Assignee: Sumitomo Bakelite Co., Ltd.
    Inventor: Akitsugu Sasaki
  • Publication number: 20110180939
    Abstract: Provided is a method of manufacturing a semiconductor device capable of adhering semiconductor elements and a support member for mounting semiconductor elements, such as lead frames, organic substrates or the like, even in a relatively low temperature range without damaging adhesion property and workability and of suppressing the occurrence of voids.
    Type: Application
    Filed: July 16, 2009
    Publication date: July 28, 2011
    Inventor: Akitsugu Sasaki
  • Publication number: 20100112272
    Abstract: A film for use in manufacturing semiconductor devices of the present invention includes a bonding layer having a first surface and a second surface, a first adhesive layer bonding to the second surface of the bonding layer and a second adhesive layer bonding to the first adhesive layer at a side opposite to the bonding layer wherein the second adhesive layer has an outer peripheral portion extending beyond an outer peripheral edge of the first adhesive layer. Further, the film is used in dicing a semiconductor wafer in a state that the semiconductor wafer is bonded to the first surface of the bonding layer while a wafer ring is bonded to the outer peripheral portion of the second adhesive layer wherein the bonding force A1 (cN/25 mm) of the first adhesive layer to the bonding layer is smaller than the bonding force A2 (cN/25 mm) of the second adhesive layer to the wafer ring.
    Type: Application
    Filed: October 4, 2007
    Publication date: May 6, 2010
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takashi Hirano, Akitsugu Sasaki, Naoya Oda