Patent ID: 6492253
Filing Date: 2002-12-10
Classification: H01L,H05K

Abstract:
A method of making a grid-type array integrated circuit (IC) package with a programmable substrate so as to be usable with different IC dies, said method comprising:(a) selecting an IC die, the IC die having contact pads on one surface thereof; (b) providing a substrate; (c) forming conductive traces on a first surface of the substrate; (d) directly attaching the IC die to the first surface of the substrate; (e) electrically connecting the contact pads of the IC die to the conductive traces; (f) providing an array of contact points attached to a second surface of the substrate, each contact point being electrically connected to a conductive via that passes from the second surface to the first surface; (g) defining a net list of a desired coupling between each conductive trace and each contact point for the IC die selected; and (h) programmably connecting the conductive traces to the contact point by connecting each conductive trace to the conductive via corresponding to the respective contact point so as to realize the desired conductive trace-to-contact point coupling defined by the net list.