Patent ID: 6281513
Filing Date: 2001-08-28
Classification: G03F,H01J

Abstract:
A method for forming a pattern, comprising the steps of:depositing a resist film on a film to be processed on a substrate;irradiating the resist film with an electron beam at an exposure dose controlled by proximity effect correction, thereby writing a pattern onto the resist film; anddeveloping the resist film, which has been irradiated with the electron beam, thereby defining a resist pattern,wherein the proximity effect correction is carried out by using:a first intensity distribution of energy deposited in the resist film out of energy of a forward-scattered electron caused in the resist film by the irradiation of the electron beam;a second intensity distribution of energy deposited in the resist film out of energy of a backscattered electron caused in the substrate by the irradiation of the electron beam; anda third intensity distribution of energy created by the irradiation of the electron beam and deposited in a region of the resist film, which is outside of a backscattered electron's reach,the first, second and third intensity distributions being all defined around the center of the electron beam focused.