Patent ID: 6873039

Claim:
A microelectronic assembly comprising: (a) a conductive element including a bottom wall and a plurality of side walls extending from said bottom wall so that said bottom wall and said side walls define a depression, said conductive element having one or more additionl openings in at least one of said walls; (b) a dielectric layer extending between said side walls, so that said dielectric layer and said conductive element substantially enclose an interior space within said depression and said one or more openings in said conductive element communicate with said interior space; (c) a microelectronic element disposed within said interior space; and (d) an encapsulant including an interior portion at least partially filling said interior space an at least partially surrounding said microelectronic element within said space, and an exterior portion exposed at an exterior surface of said conductive element in contact with said conductive element, said portions of said encapsulant being connected to one another through said one or more additional openings in said conductive element.