SELECTIVE ELECTROLESS DEPOSITION FOR SOLAR CELLS
First Claim
Patent Images
1. A metal contact structure for a solar cell comprising:
- a solar cell substrate having a base region and an emitter region;
a contact disposed adjacent to the emitter region, the contact having a bulk conductive layer and a capping layer that covers the bulk conductive layer.
1 Assignment
0 Petitions
Accused Products
Abstract
A metal contact structure of a solar cell substrate includes a contact with a conductive layer or a capping layer that is formed using an electroless plating process. The contact may be disposed within a hole formed through the solar cell substrate or on a non-light-receiving surface of the solar cell substrate. The electroless plating process for the conductive layer uses a seed layer that includes an activation layer for electroless plating.
92 Citations
28 Claims
-
1. A metal contact structure for a solar cell comprising:
-
a solar cell substrate having a base region and an emitter region; a contact disposed adjacent to the emitter region, the contact having a bulk conductive layer and a capping layer that covers the bulk conductive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A metal contact structure for a solar cell comprising:
-
a solar cell substrate having a base region and an emitter region; a contact disposed adjacent to the emitter region, the contact having a bulk conductive layer and an electrolessly deposited seed layer disposed between the bulk conductive layer and the emitter region. - View Dependent Claims (14, 15, 16)
-
-
17. A method for forming a contact on a solar cell substrate, comprising:
-
providing a solar cell substrate having an emitter region; and forming a contact having a bulk conductive layer adjacent the emitter region; and forming a capping layer on the bulk conductive layer through an electroless plating process. - View Dependent Claims (18, 19, 20, 21)
-
-
22. A method for forming a contact on a solar cell substrate, comprising:
-
providing a solar cell substrate; forming an activation layer for electroless deposition; and forming a bulk conductive layer for the contact on the activation layer. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
Specification