Patent ID: 6500225
Filing Date: 2002-12-31
Classification: C04B,C23C

Abstract:
A method for producing an indium-tin-oxide sintered body comprising the steps of:molding a powder comprising indium, tin and oxygen, and sintering the molded article in oxygen gas-containing atmosphere, wherein the halogen content of the powder comprising indium, tin and oxygen is 0.02% by weight or less, the concentration of oxygen in the oxygen gas-containing atmosphere is 90%or more during sintering, the partial pressure of moisture contained in the oxygen gas-containing atmosphere is reduced to 200 Pa or less during sintering by removing remaining moisture and moisture adhered to a furnace wall, furnace material and heat insulation material, and the molded article is maintained at a temperature in the range from 1500 to 1650Â° C. for 1 hour or more for sintering.