Patent ID: 9627203
Date: 2017-04-18
CPC Classifications: G03F,H01L

Claim:
1. A manufacturing method of a semiconductor device, comprising the steps of: (a) providing a semiconductor substrate whose outer periphery is approximately circular; (b) forming a film to be processed over the semiconductor substrate; (c) forming a chemically amplified resist layer over the film to be processed; (d) performing first wafer edge exposure in which the chemically amplified resist layer, located in a region having a first width from the outer periphery of the semiconductor substrate, is irradiated with first exposure light; (e) performing liquid immersion exposure in which the chemically amplified resist layer is irradiated with second exposure light; (f) performing second wafer edge exposure in which the chemically amplified resist layer, located in a region having a second width from the outer periphery of the semiconductor substrate, is irradiated with third exposure light; (g) after the step (f), developing the chemically amplified resist layer in order to form a resist pattern having a first pattern by removing the chemically amplified resist layer located in a region irradiated with the second exposure light and the third exposure light; and (h) after the step (g), etching the film to be processed such that the film to be processed has the first pattern.