Patent ID: 9105803
Filing Date: 2015-08-11
Classification: H01L,Y02E,Y02P

Abstract:
1. A method of manufacturing a polycrystalline solar cell panel, comprising: step A of preparing a P-type or N-type silicon target; step B of forming a P-type or N-type amorphous silicon film on the surface of a substrate using the P-type or N-type silicon target through sputtering; and step C of scanning the P-type or N-type amorphous silicon film with plasma to melt the P-type or N-type amorphous silicon film and then re-crystallizing the melted P-type or N-type amorphous silicon film to form a P-type or N-type polycrystalline silicon film, the step A including obtaining a P-type silicon target through a step of pulverizing a P-type silicon ingot containing boron and having a purity of 99.999 wt % or more to form P-type silicon powder having a purity of 99.999 wt % or more, a step of exposing the P-type silicon powder to plasma to form P-type molten silicon, and a step of re-crystallizing the P-type molten silicon, or the step A including obtaining an N-type silicon target through a step of pulverizing an N-type silicon ingot containing phosphorus or arsenic and having a purity of 99.999 wt % or more to form N-type silicon powder having a purity of 99.999 wt % or more, a step of exposing the N-type silicon powder to plasma to form N-type molten silicon, and a step of re-crystallizing the N-type molten silicon.