Patent ID: 9063428
Filing Date: 2015-06-23
Classification: G03F

Abstract:
1. A method for manufacturing a semiconductor device, comprising the steps of: (a) preparing a semiconductor substrate including a photoresist film formed on a principal surface; (b) dropping a first developing solution onto said photoresist film; (c) rotating said semiconductor substrate to drain said first developing solution dropped onto said photoresist film after a lapse of a first development time since the end of said step (b); (d) dropping a second developing solution onto said photoresist film after said step (c); and (e) rotating said semiconductor substrate to drain said second developing solution dropped onto said photoresist film after a lapse of a second development time since the end of said step (d), wherein in said step (d), said second developing solution is dropped onto said photoresist film and then a rinse solution is dropped to reduce a concentration of said second developing solution, and the first and second developing solutions are dispensed at the same concentration.