Patents by Inventor MARIO ALFONSO EDUARDO MAGANA

MARIO ALFONSO EDUARDO MAGANA 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: 20200013701
    Abstract: A method of applying a die attach material includes forming a wafer stencil by selectively removing on the back side of a wafer including a plurality of semiconductor die having an active top side a predetermined depth to form a recess having an inner circumference while not removing an outer most circumference of the wafer. The recess is filled with a B-stage adhesive material. The wafer is singulated to form a plurality singulated semiconductor die. The singulated semiconductor die is die attached back side down to a package substrate, and then the B-stage adhesive material is cured. The B-stage adhesive material across its full area generally has a minimum thickness of at least 20 ?m and a maximum thickness range of 6 ?m.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 9, 2020
    Inventor: MARIO ALFONSO EDUARDO MAGANA