Patent ID: 6292367
Filing Date: 2001-09-18
Classification: H01L

Abstract:
In a heat spreading assembly for removing heat generated by at least one integrated circuit semiconductor chip and for maintaining an uniform temperature across the chip comprising:an integrated circuit semiconductor chip of a thickness ""x"" and containing high power circuits in certain areas of the chip capable of generating a higher temperature than the other circuits of the chip and creating ""hot spots"" in these areas; andat least one continuous thermal conductivity layer comprising a single thermal conductivity material selected from the group consisting of silicon carbide and diamond in physical contact with the back of the chip having a substantially higher thermal conductivity than the chip and a thickness greater than ""x"" and with a thermal coefficient of expansion similar to the semiconductor chip, whereby during operation of the chip, the ""hot spots"" are dissipated and maximum chip temperature is lowered to create a uniform and lower temperature across the chip.