Patent ID: 9034154
Filing Date: 2015-05-19
Classification: C23C

Abstract:
1. A sputtering target capable of suppressing generation of particles during sputtering, comprising: a body made of a first substance forming a matrix phase of said body within which a second granular substance is dispersed at a volume ratio of 1 to 50% of said body, said matrix phase having a Vickers hardness of 400 Hv or less and being ductile relative to said second granular substance which has a Vickers hardness greater than that of said matrix phase and which is brittle relative to said matrix phase; and a conductive metal coating layer formed on an outermost finished surface of said body, said conductive metal coating layer forming an exposed front face of the sputtering target for being subject to sputtering during a sputtering operation; wherein said outermost finished surface of said body on which said conductive metal coating layer is formed has a center-line average surface roughness, Ra, of 0.1 μm or less, a roughness, of Rz, of 0.4 μm or less an average length of roughness motif, AR, of 120 μm or less, and an average length of waviness motif, AW, of 1500 μm or more.