Patent ID: 6468836
Filing Date: 2002-10-22
Classification: H01L

Abstract:
A method of bonding a conductive lead to a semiconductor chip contact comprising the steps of:providing a semiconductor chip having a top surface and a plurality of contacts on said top surface; juxtaposing a sheet-like substrate with said chip, said substrate having a first major surface facing away from said chip top surface and a second major surface facing toward said chip top surface, said substrate further including a plurality of leads and terminals on at least one of said substrate first or second surfaces, said substrate further including metallic coupling vias exposed at said second surface of said substrate for electrical and mechanical connection to respective semiconductor chip contacts, wherein said coupling vias and respective terminals are interconnected by said leads; and engaging a bonding tool with said coupling vias and transferring energy through said coupling vias to bond said coupling vias to respective chip contacts.