Patent ID: 6265137
Filing Date: 2001-07-24
Classification: G03F

Abstract:
An exposure method in which an image of a device pattern whose length and width are different from each other is transferred onto a predetermined substrate under application of predetermined exposure light or a predetermined charged particle beam, said method comprising the steps of:generating a first pattern which limits a configuration in a shorter dimension of said device pattern, and a second pattern which limits a configuration in a longer dimension of said device pattern and has a different configuration from said first pattern;projecting an image of one of said first pattern and said second pattern onto said substrate, on which a positive photoresist is applied under a first exposure condition to transfer said image onto said photoresist; andprojecting an image of the other of said first pattern and second pattern onto said substrate over a portion of the image of the one of said first pattern and said second pattern formed on said photoresist under a second exposure condition different from said first exposure condition to transfer said image onto said photoresist, said portion of the image limiting the configuration of said device pattern.