Patent ID: 9158192
Filing Date: 2015-10-13
Classification: G03F

Abstract:
1. A half-tone phase shift mask blank, comprising: a light-shielding film having a monolayer structure or a multilayer structure, wherein: the light-shielding film is provided on the half-tone phase shifting layer, and includes at least one layer made of a chromium-containing material; the at least one layer made of a chromium-containing material is made of a chromium-containing material including tin; the chromium-containing material is any one of a chromium metal, chromium oxide, chromium nitride, chromium carbide, chromium oxide nitride, chromium oxide carbide, chromium nitride carbide, and chromium oxide nitride carbide; and the chromium-containing material including tin is any one of a tin-chromium metal, tin-chromium oxide, tin-chromium nitride, tin-chromium carbide, tin-chromium oxide nitride, tin-chromium oxide carbide, tin-chromium nitride carbide, and tin-chromium oxide nitride carbide.