Patent ID: 8097398
Filing Date: 2012-01-17
Classification: G03F,H01L,Y10S

Abstract:
1. A method for manufacturing a semiconductor device comprising: forming a resist film on a substrate and processing the resist film to be provided with openings to form a first resist pattern; forming additive-containing layers so that the additive-containing layers cover a surface of the first resist pattern, the additive-containing layers containing an additive that changes a state of the resist film from a non-soluble state to a soluble state for a developer; forming a first resin film in a state that the first resin film is buried in the openings of the first resist pattern, a state of the first resin film being changed from a non-soluble state to a soluble state for the developer when the first resin film contains the additive, and the openings of the first resist pattern being covered with the additive-containing layers; diffusing the additive into the first resist pattern and the first resin film, respectively, the first resist pattern being covered with the additive-containing layers and being medially-located to the additive-containing layers, and the first resin film being laterally-located to the additive-containing layers, to form first additive-diffusing portions in the first resist pattern and second additive-diffusing portions in the first resin film, the first and second additive-diffusing portions being able to be solved in the developer; and removing the first additive-diffusing portions and the second additive-diffusing portions with the developer, to form a second resist pattern made of remaining portions in the first resist pattern and remaining portions in the first resin film.