Patent ID: 11961926
Assignee: NANTONG T-SUN NEW ENERGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. The method for metallizing the front electrode of the N-type solar cell according to claim 1, wherein the passivation anti-reflection coating on the front surface of the N-type crystalline silicon substrate comprises one or more of SiO2, SiNx, or Al2O3 dielectric coatings, and the rear surface passivation coating is a composite dielectric coating consisting of SiO2 and SiNx, dielectric coatings; the N-type crystalline silicon substrate has a thickness of 50-300 μm; the p+doped region has a doping depth of 0.5-2.0 μm; the front surface passivation anti-reflection coating has a thickness of 70-110 nm; the rear surface passivation coating has a thickness of no less than 20 nm; the n+doped region has a doping depth of 0.5-2.0 μm.