Patent ID: 7608368
Filing Date: 2009-10-27
Classification: G03F,Y10S

Abstract:
1. A pattern forming method comprising: forming a resist film on a main surface of a substrate; exposing the resist film to form a latent image of a pattern on the resist film; developing the resist film by flowing a developing solution on the resist film to form a resist pattern, the developing the resist film comprising partitioning the main surface of the substrate into M (≧2) regions and determining a correction exposure dose for each of the M regions, the determining the correction exposure dose including determining a correction exposure dose for an i-th (1≦i≦M) region so that an actual pattern dimension of a pattern on the i-th region matches a design pattern dimension based on a pattern opening ratio of a pattern located on an upstream region which is further upstream than the i-th region along a flow direction of the developing solution; and forming a pattern on the substrate by etching the substrate using the resist pattern as a mask.