Patent ID: 7270867
Filing Date: 2007-09-18
Classification: H01L,Y10T

Abstract:
1. A prossess for fabricating a leadless plastic chip carrier, the process comprising: selectively depositing a plurality of base layers on a first surface of a base of a leadframe strip to at least partially define a die attach pad and at least one row of contact pads; wherein selectively depositing said plurality of base layers comprises, depositing successive layers of metal in said pits selectively depositing at least one further layer on portions of said plurality of layers to further define at least said contact pads, wherein selectively depositing said at least one further layer comprises: treating said leadframe strip with a surface preparation; mounting a semiconductor die to said die attach pad; wire bonding said semiconductor die to at ones of the contact pads; molding said semiconductor die, said wire bonds, said die attach pad and said contact pads on said surface of said leadframe strip, in a molding compound; etching said base of said leadframe strip to expose said contact pads and said die attach pad; singulating said leadless plastic chip carrier from a remainder of said leadframe strip.