Patent ID: 9537026
Date: 2017-01-03
CPC Classifications: H01L,Y02E,Y02P

Claim:
1. A method for manufacturing a solar-power-generator substrate by cutting out a semiconductor substrate by slicing a semiconductor ingot and then by forming a texture structure on a surface of the semiconductor substrate by performing a surface treatment on the surface of the semiconductor substrate, the method comprising: cleaning including cleaning and removing an organic impurity and a metal impurity adhering to the surface of the semiconductor substrate with a cleaning fluid containing an oxidizing chemical; cleaning-fluid removal including washing away the cleaning fluid containing an oxidizing chemical adhering to the semiconductor substrate; and etching including removing a damaged layer on a substrate surface generated by the slicing and forming the texture structure on the surface of the semiconductor substrate by performing anisotropic etching on the surface of the semiconductor substrate with an alkaline aqueous solution, the etching being performed subsequent to the cleaning wherein the cleaning, the cleaning-fluid removing, and the etching are performed in succession.