Patent ID: 6753600
Filing Date: 2004-06-22
Classification: H01L

Abstract:
A structure of a substrate for a high-density semiconductor package comprising:a metal substrate having a first surface and a second surface, wherein the first surface comprises at least a die attachment area located at a prescribed location; an interconnect substrate having a top surface and a bottom surface, wherein said top surface of said interconnect substrate is attached to the second surface of the metal substrate, wherein said interconnect substrate comprises means for electrically connecting with an IC chip through one or more slots on the metal substrate with wire bonds, and wherein the bottom surface of the interconnect substrate comprises connection means for electrically connecting to a printed circuit board, so that signals from the IC chip can be transmitted through the interconnect substrate to a printed circuit board; and at least a thermally conductive via attached to the second surface of the metal substrate underneath the die attachment area for connecting with the printed circuit board for conducting heat from the metal substrate to the printed circuit board.