Bypass diode for a solar cell
AssigneeSunPower Corporation
InventorsSeung Bum Rim, Taeseok Kim, David D. Smith, Peter J. Cousins
Life of this patent
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Abstract
Bypass diodes for solar cells are described. In one embodiment, a bypass diode for a solar cell includes a substrate of the solar cell. A first conductive region is disposed above the substrate, the first conductive region of a first conductivity type. A second conductive region is disposed on the first conductive region, the second conductive region of a second conductivity type opposite the first conductivity type.
Claims18
A bypass diode for a solar cell, the bypass diode comprising:
- a substrate of the solar cell;
- a first conductive region disposed above the substrate, the first conductive region of a first conductivity type;
- and a second conductive region disposed on the first conductive region, the second conductive region of a second conductivity type opposite the first conductivity type;
- and further comprising:
- an isolation trench disposed in the substrate and surrounding the portion of the substrate below the first conductive region, wherein the isolation trench is filled with a dielectric layer that is disposed on the first and second conductive regions.
A bypass diode for a solar cell, the bypass diode comprising:
- a substrate of the solar cell;
- a first conductive region disposed above the substrate, the first conductive region of a first conductivity type;
- and a second conductive region disposed on the first conductive region, the second conductive region of a second conductivity type opposite the first conductivity type and further comprising:
- a thin dielectric layer disposed on the substrate, wherein the first conductive region is disposed on the thin dielectric layer;
- wherein the second conductive region is narrower than the first conductive region, exposing a top surface of the first conductive region.
A bypass diode for a solar cell, the bypass diode comprising:
- a substrate of the solar cell;
- a first conductive region disposed above the substrate, the first conductive region of a first conductivity type;
- and a second conductive region disposed on the first conductive region, the second conductive region of a second conductivity type opposite the first conductivity type;
- and further comprising:
- wherein the second conductive region is disposed within, and surrounded by, an uppermost portion of the first conductive region, but is not disposed in a lowermost portion of the first conductive region.
Dependencies are inferred from the claim text.