Solar cell and method of fabricating the same

Details Solar cell and method of fabricating the same Solar cell and method of fabricating the same

2007-03-27

2009-11-10

Baptiste, Wilner Jean (Department: 2823)

Semiconductor device manufacturing: process

Making device or circuit emissive of nonelectrical signal

Groove formation

C438S296000, C438S337000, C438S462000, C257S117000, C257S118000, C257S170000

Reexamination Certificate

active

07615391

ABSTRACT:
A method of fabricating a solar cell forms a large number of grooves on a first main surface of a p-type silicon single crystal substrate sliced out from a silicon single crystal ingot as described below. First an edge portion of a groove-carving blade is projected out from a flat substrate feeding surface of a working table by a predetermined height. The p-type silicon single crystal substrate is moved along the substrate feeding surface towards the rotating groove-carving blade while keeping a close contact of the first main surface thereof with the substrate feeding surface. Electrodes are then formed on the inner side face of thus-carved grooves only on one side in the width-wise direction thereof.

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