Patent ID: 7595225
Filing Date: 2009-09-29
Classification: H01L

Abstract:
1. A process for fabricating a leadless plastic chip carrier, comprising: selectively etching a first surface of a single layer leadframe strip to thereby provide depressions in said first surface; depositing metal contacts in said depressions by applying a soldering paste on a bare surface of the single layer leadframe strip from which an etching material has been removed, the bare surface being said first surface of said leadframe strip having said depressions formed therein; selectively plating at least one layer of metal on at least said metal contacts to provide a plurality of selectively plated contact pads and a die attach pad; mounting a semiconductor die on said first surface of said die attach pad; wire bonding said semiconductor die to ones of the contact pads; encapsulating said wire bonds and the semiconductor die in a molding material such that said molding material covers the die attach pad and the contact pads; etching away said leadframe strip thereby exposing said metal contacts in the form of an array; and singulating said leadless plastic chip carrier from other leadless plastic chip carriers.