Patent ID: 9299871
Filing Date: 2016-03-29
CPC Classification: H01L,H02S,Y02E

Claim Text:
1. A method for manufacturing a solar cell, comprising: forming an amorphous semiconductor layer of N conductivity type on a light incident front-surface side of a crystalline semiconductor substrate of said N conductivity type and forming an amorphous semiconductor layer of P conductivity type on a rear-surface side thereof; forming a transparent conductive layer on each of the amorphous semiconductor layers; forming a transparent insulation layer on the front-surface side transparent conductive layer; forming an open groove by selectively removing both of the transparent insulation layer and the front-surface side transparent conductive layer by laser; wherein a width of the open groove where the open groove penetrates the surface border of the transparent insulated layer is larger than a width of the open groove where the open groove penetrates the border of the transparent insulated layer and the transparent conductive layer; forming a front-surface side collector electrode in the open groove by plating; and forming a rear-surface-side collector electrode on the rear-surface-side transparent conductive layer.