Patent ID: 6281106
Filing Date: 2001-08-28
Classification: H01L,H05K,Y02P

Abstract:
A method of electrically and mechanically connecting a circuit component to a conductor on a substrate, the method comprising the steps of:providing an interconnect surface on a surface of the component;forming a mask having a via that exposes a portion of the interconnect surface;depositing a first metallic layer within the via;depositing a second metallic layer on the first metallic layer; and thendepositing a first solder layer on the second metallic layer, the first solder layer having a liquidus temperature;wherein the first metallic layer has a sufficiently high liquidus temperature so as not to melt or deform at the liquidus temperature of the first solder layer, and the second metallic layer comprises at least one metal that is soluble in the first solder layer.