Patent ID: 6503592
Filing Date: 2003-01-07
Classification: C23C,G11B,Y10S,Y10T

Abstract:
A method of producing an optical recording medium comprising a recording layer, comprising the step of:forming said recording layer in a sputter chamber by sputtering by use of a sputtering target which comprises a compound or mixture comprising as constituent elements Ag, In, Te and Sb with the respective atomic percent of &agr;,&bgr;, &ggr; and &dgr; thereof being in the relationship of: 2&lE;&agr;&lE;30, 3&lE;&bgr;&lE;30, 10&lE;&ggr;&lE;50, 15&lE;&dgr;&lE;83, and&agr;+&bgr;+&ggr;+&dgr;=100, in a gas comprising argon gas and nitrogen gas with a concentration of 0 to 15 mol %.