Patent ID: 6248291
Filing Date: 2001-06-19
Classification: C23C

Abstract:
A process for producing sputtering targets, which comprises molding a mixture of a powder of a high-melting substance having a melting point of 900.degree. C. or above with a powder of a low-melting metal having a melting point of 700.degree. C. or below at a temperature below the melting point of the low-melting metal under heat and pressure, wherein the heating temperature is lower than the melting point of the low-melting metal by at most 50.degree. C. and the pressure is not higher than 500 kgf/cm.sup.2, and wherein the powder of the low-melting metal is of at least one metal selected from the group consisting of In and Sn, wherein the mixture contains from 20 to 95 volume % of the powder of the low-melting metal and the target has a relative density of at least 90%.