Importance

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Abstract

A method of making a semiconductor chip assembly includes providing a semiconductor chip that includes a conductive pad, providing a conductive trace and a metal base, wherein the conductive trace includes a routing line and a contact terminal, the routing line is disposed outside the metal base, the contact terminal extends from the routing line through the metal base, the contact terminal includes a plated metal that contacts and extends through the metal base, the plated metal forms a peripheral sidewall portion of the contact terminal, and the plated metal surrounds a central surface area without extending into the central surface area, then mechanically attaching the chip to the conductive trace, removing a portion of the metal base that contacts the plated metal, and forming a connection joint that contacts and electrically connects the conductive trace and the pad.

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First Claim