Patent ID: 9397279
Filing Date: 2016-07-19
CPC Classification: C23C,H01L,H05K,Y10T

Claim Text:
1. An electric conductive heat dissipation substrate, comprising: a ceramic substrate; a seed layer, on the ceramic substrate, wherein the seed layer is one selected from the group consisting of nickel-phosphorous alloy, nickel-boron alloy, nickel-tungsten-phosphorous alloy, nickel-molybdenum-phosphorous alloy, nickel-tungsten-boron alloy, nickel-molybdenum-boron alloy, cobalt-phosphorous alloy, cobalt-boron alloy, cobalt-tungsten-phosphorous alloy, cobalt-molybdenum-phosphorous alloy, cobalt-tungsten-boron alloy and cobalt-molybdenum-boron alloy, or a mixture thereof; a buffering material layer, formed on the seed layer; and a copper circuit layer, on the buffering material layer, wherein a thermal expansion coefficient of the buffering material layer is between those of the ceramic substrate and the copper circuit layer, and the buffering material layer is composed of a metal material and a ceramic material, or is composed of an alloy material and the ceramic material.