The production of N-type TOPCon photovoltaic cells includes the processes of texturing, boron diffusion, laser SE, oxidation, etching, back polishing, Poly tunnel oxide layer, annealing, RCA cleaning, ALD coating, PECVD coating, screen printing, drying, sintering, light injection, testing and sorting. The manufacturing process of HJT photovoltaic cells includes texturing, cleaning, amorphous silicon thin film deposition, transparent conductive thin film deposition, screen printing, etc.