Patent ID: 11973151
Assignee: TONGWEI SOLAR (ANHUI) CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 14:
15. The method according to claim 10, wherein the forming the doped N-type amorphous silicon layer and the doped P-type amorphous silicon layer by plasma enhanced chemical vapor deposition comprises:
growing, at a temperature of a silicon wafer substrate of 100° C. to 300° C. and under a deposition pressure of 10 Pa to 300 Pa, the doped N-type amorphous silicon layer and the doped P-type amorphous silicon layer on back surfaces of hydrogenated amorphous silicon oxycarbide films respectively, by using H2, SiH4, and doping gases TMB, B2H6 and PH3 as reaction gases when a base vacuum of a vacuum chamber reaches 5×10−4 Pa.