Patent ID: 6299831
Filing Date: 2001-10-09
Classification: B22F,C23C

Abstract:
A method of fabricating low-oxygen, high-density Cu/Cr sputter targets, comprising the steps of:blending a Cu powder and a Cr powder to form a blended Cu/Cr powder, the Cu powder and the Cr powder each having particles in the size range of about 20 .mu.m to about 150 .mu.m, and the blended Cu/Cr powder having an oxygen content less than about 800 ppm; andpressing the blended Cu/Cr powder for at least 1 hour to form a target blank, the blank having a 100 to 200 ppm increase in the oxygen content, a density of at least 90% of theoretical density and an oxygen content less than about 1000 ppm.