Patent ID: 6475831
Filing Date: 2002-11-05
Classification: H01L,H05K,Y02P,Y10T

Abstract:
A method for connecting a vertically stacked plurality of primary integrated circuit packages, each primary integrated circuit package having a plurality of outer leads and having a plurality of sides, comprising:providing a substrate having a plurality of circuits thereon; providing a semi-continuous flexible tape of non-conductive polymeric material having a width to encompass the outer leads of each primary integrated circuit package of said stacked plurality of primary integrated circuit packages; forming a plurality of spaced transverse conductive buses on said non-conductive polymeric material, at least one conductive buses of said plurality of conductive buses having one end for connection to an electrically conductive pad of said substrate; connecting said at least one bus of said plurality of spaced transverse conductive buses to at least one lead of said outer leads of said stacked plurality of primary integrated circuit packages and to at least one circuit of said plurality of circuits of said substrate; providing a cage enclosing at least two sides of said plurality of sides of each primary integrated circuit package of said stacked plurality of primary integrated circuit packages; and attaching said cage to said substrate, said cage connecting at least one outer lead of said outer leads of said stacked plurality of primary integrated circuit packages to at least one conductive bus of said plurality of spaced transverse conductive buses.