Methods of forming semiconductor solar cells having front...

Details Methods of forming semiconductor solar cells having front... Methods of forming semiconductor solar cells having front...

2011-06-21

2011-06-21

Dickey, Thomas L (Department: 2893)

Semiconductor device manufacturing: process

Coating with electrically or thermally conductive material

To form ohmic contact to semiconductive material

C257SE31124, C257SE21476, C136S252000

Reexamination Certificate

active

07964499

ABSTRACT:
Solar cells include a substrate having a light collecting surface thereon and a P-N rectifying junction within the substrate. The P-N rectifying junction includes a base region of first conductivity type (e.g., p-type) and a semiconductor layer of second conductivity type extending between the base region and the light collecting surface. A trench is also provided, which extends through the semiconductor layer and into the base region. First and second electrodes are provided adjacent the light collecting surface. The first electrode is electrically coupled to the semiconductor layer and the second electrode is electrically coupled to the base region, at a location adjacent a bottom of the trench.

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