Patent ID: 9583331
Date: 2017-02-28
CPC Classifications: B08B,H01L

Claim:
1. A manufacturing method of a semiconductor device comprising: cleaning a semiconductor substrate; rinsing the surface of the semiconductor substrate with deionized water; displacing the deionized water with alcohol; simultaneously supplying a first chemical liquid for forming a water-repellent protection film on a surface of the semiconductor substrate and a second chemical liquid for covering the first chemical liquid covering the surface of the semiconductor substrate by a nozzle, the second chemical liquid not being mixed with the first chemical liquid and not reacting to the first chemical liquid, and the first chemical liquid being below the second chemical liquid; and displacing the first chemical liquid and the second chemical liquid with alcohol; rinsing the alcohol with deionized water; and drying the semiconductor substrate, wherein the first chemical liquid is an insoluble water-repellent agent and the second chemical liquid is a soluble chemical liquid, a specific gravity of the second chemical liquid is lower than a specific gravity of the first chemical liquid.