Patent ID: 6190529
Filing Date: 2001-02-20
Classification: C25D,H01L

Abstract:
A method for plating gold to a plurality of bond leads on a substrate (10), said substrate (10) having a center portion defined therein a bond area (12) and an edge formed thereon a plating loop (14), each one of said plurality of bond leads having an end located in said bond area (12) and the other end connected with a ball land (13) formed on said substrate (10), a die (21) having a plurality of solder pads (211) being provided to electrically connect with said substrate (10) by bonding said plurality of bond leads to said plurality of solder pads (211), respectively, said method comprising the steps of:extending a plating line (141) from said plating loop (14) to said bond area (12) to electrically connect said plurality of bond leads in series, said plating line (141) further extending to connect to said plating loop (14) after connecting said plurality of bond leads together;conducting electricity to said plurality of bond leads and ball lands (13) via said plating loop (14) and said plating line (141) thereby plating gold to said plurality of bond leads and ball lands (13); andusing a bonding tool (22) to cut off and remove said plating line (141) when said bonding tool (22) is provided to bond said plurality of bond leads to said plurality of solder pads (211), respectively.