Patent ID: 6190840
Filing Date: 2001-02-20
Classification: G03F

Abstract:
A resist pattern forming method, said resist pattern having a first region and a second region different in at least one of a pattern size and a pattern density from said first region, comprising the steps of:forming a resist film on one major surface of a substrate;irradiating said resist film with exposure light via a photomask to expose said resist film; anddeveloping said exposed resist film,wherein said photomask includes:a first pattern portion corresponding to said first region and having a light-transmitting portion, anda second pattern portion corresponding to said second region, having a light-transmitting portion, and being different in at least one of a pattern size and a pattern density from said first pattern portion; whereinthe step of forming said resist film is performed such that a thickness of said first region and a thickness of said second region are different from each other.