Patent ID: 9040388
Filing Date: 2015-05-26
Classification: H01L

Abstract:
1. A method of forming a bonded stack of a coreless substrate and a chip, said method comprising: forming a stack, from bottom to top, of a stiffener, a patterned adhesive layer, and a coreless substrate layer including at least one coreless substrate integrally incorporated therein, wherein said patterned adhesive layer includes a plurality of holes therein; bonding at least one chip to said at least one coreless substrate; dicing said coreless substrate layer to isolate at least one bonded stack of a coreless substrate and a chip along vertical planes that include a closed periphery that does not overlie any area of said patterned adhesive layer; applying a blanket adhesive layer to a front side of said stiffener; and applying a photoresist to said blanket adhesive layer and lithographically patterning said photoresist.