Patent ID: 7585691
Filing Date: 2009-09-08
Classification: H01L

Abstract:
1. A method for producing a solid-state imaging device comprising a light-shielding film on a semiconductor substrate in which a light-receiving portion is formed, the light-shielding film having an opening portion above the light-receiving portion, the method comprising: a metal film formation step of forming at least one of a high melting point metal film and a high melting point metal compound film having a light-shielding property on the semiconductor substrate in which the light-receiving portion is formed, a surface treatment step of providing a surface of the metal film with a property of adsorbing or bonding to a hydroxyl group when it is in contact with air, a surfactant application step of applying a surfactant onto the film that has been subjected to the surface processing, a patterning step of applying a resist on the surfactant to form a pattern, an etching step of performing an etching treatment of the metal film that has been subjected to the surface processing, using the resist formed into a pattern as a mask, and a resist removing step of removing the resist.