Patent ID: 6225688
Filing Date: 2001-05-01
Classification: H01L,H05K

Abstract:
A stacked microelectronic assembly, comprising:a flexible substrate having a plurality of attachment sites, said flexible substrate including a first surface and a second surface and having a plurality of electrically conductive terminals accessible at at least one of said first and second surfaces, a plurality of electrically conductive test contacts accessible at at least one of said first and second surfaces, and wiring connected to said terminals and said test contacts and including flexible leads extending to said attachment sites;a plurality of microelectronic elements assembled to said attachment sites and electrically connected to said leads; said flexible substrate being folded so that at least some of said microelectronic elements are stacked in substantially vertical alignment with one another; anda securing element maintaining said stacked microelectronic elements in substantially vertical alignment with one another, wherein said conductive terminals are exposed at a bottom end of said assembly.