Patents Represented by Attorney, Agent or Law Firm Trask Brett
  • Patent number: 6184064
    Abstract: A method of physically altering the backside surface of a semiconductor wafer or other substrate, and resulting article, to improve adhesion between the backside surface of semiconductor dice singulated from the wafer and a die attach adhesive or encapsulation compound. The physically altered backside surface reduces or substantially eliminates delamination and cracking damage in a semiconductor die assembly due to semiconductor wafer tape contamination and subsequent moisture penetration. The physically altered backside surface further reduces both semiconductor wafer tape contamination and shear stress along the interface between the semiconductor die backside surface and the die attach adhesive or encapsulation compound.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: February 6, 2001
    Assignee: Micron Technology, Inc.
    Inventors: Tongbi Jiang, Chad A. Cobbley