Patent ID: 6543674
Filing Date: 2003-04-08
Classification: H01L,H05K,Y02P

Abstract:
A method for electrically coupling electrode pads comprising the steps of:(a) forming a reflowed solder bump on a first electrode pad supported by a first substrate, said reflowed solder bump including a solder material having a melting temperature; (b) forming a second electrode pad on a second substrate, said second electrode pad including an electrode structure defined by at least one converging continuous arcuate surface terminating in an apex and having an electrode material whose melting temperature is greater than the melting temperature of the solder material, where said forming a second electrode pad comprises selectively removing electrode material from a layer of said electrode material by electrodissolution; (c) heating the solder bump to soften the solder material; and (d) pressing the apex of the second electrode pad into the heated solder bump to couple the first electrode pad to the second electrode pad.