Patent ID: 7414319
Filing Date: 2008-08-19
Classification: H01L,H05K,Y02P

Abstract:
1. A semiconductor chip assembly, in which first and second opposing vertical directions are orthogonal to a lateral direction, 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, a metal containment wall and a solder terminal, wherein a connection joint that electrically connects the routing line and the pad; an encapsulant that contacts the chip; and an insulative base that contacts the routing line and the metal containment wall, wherein the chip is embedded in the encapsulant, the metal containment wall is embedded in the insulative base, extends vertically beyond the solder terminal in the first direction and extends vertically beyond the routing line in the second direction, the cavity extends into the insulative base, the solder terminal extends into the insulative base and is not covered in the second direction by any material of the assembly, and the entire portion of the solder terminal that extends into the insulative base is within a surface area of the cavity and is covered in the first direction by the metal containment wall.