METAL-FOIL-ASSISTED FABRICATION OF THIN-SILICON SOLAR CELL

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United States of America Patent

APP PUB NO 20180033894A1
SERIAL NO

15722480

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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One embodiment relates to a method of fabricating a solar cell. A silicon lamina is cleaved from the silicon substrate. The backside of the silicon lamina includes the P-type and N-type doped regions. A metal foil is attached to the backside of the silicon lamina. The metal foil may be used advantageously as a built-in carrier for handling the silicon lamina during processing of a frontside of the silicon lamina. Another embodiment relates to a solar cell that includes a silicon lamina having P-type and N-type doped regions on the backside. A metal foil is adhered to the backside of the lamina, and there are contacts formed between the metal foil and the doped regions. Other embodiments, aspects and features are also disclosed.

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Patent Owner(s)

Patent OwnerAddress
SUNPOWER CORPORATIONSAN JOSE CA 95134

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HARLEY, Gabriel Mountain View, US 66 350
RIM, Seung Bum Palo Alto, US 44 291

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