Patent ID: 8105693
Filing Date: 2012-01-31
Classification: C04B,H01L,Y10T

Abstract:
1. A multilayered structure, comprising: a diamond layer having a top surface and a bottom surface; a first thin adhesion layer on the top surface; a second thin adhesion layer on the bottom surface; a first metal layer having a thermal conductivity greater than 200 W/m-K and a coefficient of thermal expansion greater than 12 ppm/K, wherein the first metal layer is deposited on the first thin adhesion layer; and a second metal layer having a thermal conductivity greater than 200 W/m-K and a coefficient of thermal expansion greater than 12 ppm/K, wherein the second metal layer is deposited on the second thin adhesion layer, wherein a CTE matching equation determines the thickness of the diamond layer, the first metal layer, and the second metal layer such that the CTE of the multilayered structure matches the CTE of a semiconductor, wherein the thickness of each of the first and second thin adhesion layers is less than 10% compared to the thickness of each of the first and second metal layers.