Patent ID: 7071573

Claim:
A semiconductor chip assembly, comprising: a semiconductor chip that includes first and second opposing surfaces, wherein the first surface of the chip includes a conductive pad; a conductive trace that includes a routing line and a metal pillar; a connection joint that electrically connects the routing line and the pad; and an encapsulant that includes first and second opposing surfaces, wherein the first surface of encapsulant faces in a first direction, the second surface of the encapsulant faces in a second direction opposite the first direction, the chip and the metal pillar are embedded in the encapsulant, the chip, the metal pillar and the encapsulant extend vertically beyond the routing line in the first direction, the routing line extends laterally beyond the metal pillar towards the chip and extends vertically beyond the chip and the metal pillar in the second direction, the metal pillar is disposed outside a periphery of the chip and any other chip embedded in the encapsulant, is metallurgically welded to and only to the routing line, extends vertically across most or all of a thickness of the chip between the first and second surfaces of the chip and is not covered in the first direction by the encapsulant or any other insulative material of the assembly, and any chip embedded in the encapsulant is electrically connected to the metal pillar by an electrically conductive path that includes the routing line.