Metallization of conductive wires for solar cells
First Claim
1. A method of fabricating a solar cell, the method comprising:
- placing conductive wires in a wire guide, wherein the placing positions the conductive wires over a first semiconductor substrate having first doped regions and second doped regions, wherein placing conductive wires in the wire guide comprises placing conductive wires in a plurality of tubes;
aligning conductive wires over the first and second doped regions, wherein the wire guide aligns the conductive wires substantially parallel to the first and second doped regions to form a pairing of the semiconductor substrate and the conductive wires; and
bonding the conductive wires to the first and second doped regions by force to the pairing of the first semiconductor substrate and the conductive wires, wherein the mechanical force is applied via a roller, and wherein the wire guide inhibits lateral movement of the conductive wires during the bonding.
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Accused Products
Abstract
Methods of fabricating a solar cell, and system for electrically coupling solar cells, are described. In an example, the methods for fabricating a solar cell can include placing conductive wires in a wire guide, where conductive wires are placed over a first semiconductor substrate having first doped regions and second doped regions. The method can include aligning the conductive wires over the first and second doped regions, where the wire guide aligns the conductive wires substantially parallel to the first and second doped regions. The method can include bonding the conductive wires to the first and second doped regions. The bonding can include applying a mechanical force to the semiconductor substrate via a roller or bonding head of the wire guide, where the wire guide inhibits lateral movement of the conductive wires during the bonding.
15 Citations
18 Claims
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1. A method of fabricating a solar cell, the method comprising:
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placing conductive wires in a wire guide, wherein the placing positions the conductive wires over a first semiconductor substrate having first doped regions and second doped regions, wherein placing conductive wires in the wire guide comprises placing conductive wires in a plurality of tubes; aligning conductive wires over the first and second doped regions, wherein the wire guide aligns the conductive wires substantially parallel to the first and second doped regions to form a pairing of the semiconductor substrate and the conductive wires; and bonding the conductive wires to the first and second doped regions by force to the pairing of the first semiconductor substrate and the conductive wires, wherein the mechanical force is applied via a roller, and wherein the wire guide inhibits lateral movement of the conductive wires during the bonding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of fabricating a solar cell, the method comprising:
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placing conductive wires in a wire guide, wherein the placing positions the conductive wires over a first semiconductor substrate having first doped regions and second doped regions; aligning conductive wires over the first and second doped regions, wherein the wire guide aligns the conductive wires substantially parallel to the first and second doped regions to form a pairing of the semiconductor substrate and the conductive wires; and bonding the conductive wires to the first and second doped regions by force to the pairing of the first semiconductor substrate and the conductive wires, wherein the mechanical force is applied via a roller, and wherein the wire guide inhibits lateral movement of the conductive wires during the bonding, wherein placing conductive wires in the wire guide comprises placing conductive wires in a plurality of closed grooves.
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10. A method of fabricating a solar cell, the method comprising:
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placing conductive wires in a wire guide, wherein the placing positions the conductive wires over a first semiconductor substrate having first doped regions and second doped regions, wherein the wire guide comprises a plurality of tubes or a plurality of closed grooves; aligning conductive wires over the first and second doped regions, wherein the wire guide aligns the conductive wires substantially parallel to the first and second doped regions to form a pairing of the semiconductor substrate and the conductive wires; and bonding the conductive wires to the first and second doped regions by applying a mechanical force to the pairing of the first semiconductor substrate and the conductive wires, wherein the mechanical force is applied via a bonding head of the wire guide, and wherein the wire guide inhibits lateral movement of the conductive wires during the bonding. - View Dependent Claims (11, 12, 13)
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14. A system for electrically coupling solar cells, the system comprising:
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a wire guide to align conductive wires substantially parallel with first and second doped regions of a first semiconductor substrate, wherein the wired guide comprises a plurality of tubes; and a roller to bond the conductive wires to the first and second doped regions, wherein the wire guide inhibits lateral movement of the conductive wires in contact with the roller. - View Dependent Claims (15, 16, 18)
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17. A system for electrically coupling solar cells, the system comprising:
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a wire guide to align conductive wires substantially parallel with first and second doped regions of a first semiconductor substrate; and a roller to bond the conductive wires to the first and second doped regions, wherein the wire guide inhibits lateral movement of the conductive wires in contact with the roller, wherein the wire guide comprises a plurality of grooves to align conductive wires substantially parallel with first and second doped regions of a semiconductor substrate.
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Specification