Patent ID: 6853202
Filing Date: 2005-02-08
Classification: G01R,H01L

Abstract:
1. A method for testing wire bonds in an integrated circuit package, comprising: receiving a die comprising an integrated circuit formed on a semiconductor substrate that is bonded to a packaging substrate, said integrated circuit comprising a circuit contact pad and said packaging substrate comprising a lead contact pad, wherein a non-stick detection (NSD) contact pad contacts said semiconductor substrate and extends through said packaging substrate, said NSD contact pad coupled via a trace line to a bus line that is coupled to ground; forming a wire connection between said circuit contact pad and said lead contact pad; and testing said wire connection for failure to stick at said circuit contact pad and at said lead contact pad by checking for electrical continuity along a path comprising said circuit contact pad and said NSD contact pad, wherein said semiconductor substrate itself provides electrical continuity between said circuit contact pad and said NSD contact pad for said testing.