Patent ID: 11967656
Assignee: ZHEJIANG JINKO SOLAR CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. The method of claim 6, wherein the doping concentration of the doping elements in the corresponding first portion is in a range of 1×1020 atom/cm3 to 1.5×1020 atom/cm3, the maximum doping concentration of the doping elements in the respective second portion is in a range of 3×1020 atom/cm3 to 4×1020 atom/cm3, and the minimum doping concentration of the doping elements in the respective second portion is in a range of 1×1020 atom/cm3 to 1.5×1020 atom/cm3.