Patent ID: 7147141
Filing Date: 2006-12-12
Classification: B23K,H01L,H05K,Y10T

Abstract:
1. A method comprising: forming one or more bonding pads upon a substrate; forming one or more vias through the substrate, the vias formed within the bonding pad; plugging the one or more vias with a via plug material, the via plug material containing an amount of volatiles and the via plug material being a non-conductive material; covering the one or more vias with a solder mask through a solder mask process, wherein the solder mask is in direct contact with the via plug material, and wherein the solder mask is polymerizable through ultraviolet light; preconditioning the via plug material to reduce a portion of the amount of volatiles within the via plug material; and performing a reflow process on the substrate after preconditioning the via plug material while retaining the preconditioned via plug material within the one or more vias.