Methods for forming thermoelectric elements
First Claim
1. A method for forming a thermoelectric device, comprising:
- (a) providing a semiconductor substrate;
(b) providing a first layer of an etching material adjacent to said semiconductor substrate, wherein said etching material facilitates the etching of said semiconductor substrate upon exposure to an oxidizing agent and a vapor chemical etchant;
(c) providing a second layer of a semiconductor oxide adjacent to said first layer;
(d) patterning said second layer to form a pattern of holes or wires;
(e) sequentially etching said second layer and said first layer to expose portions of said semiconductor substrate; and
(f) contacting exposed portions of said semiconductor substrate to said oxidizing agent and said vapor chemical etchant while applying an electrical potential to said semiconductor substrate, to transfer said pattern to said semiconductor substrate.
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Accused Products
Abstract
The present disclosure provides a method for forming a thermoelectric device, comprising providing a semiconductor substrate and providing a first layer of an etching material adjacent to the semiconductor substrate. The etching material facilitates the etching of the semiconductor substrate upon exposure to an oxidizing agent and a chemical etchant. Next, a second layer of a semiconductor oxide is provided adjacent to the first layer, and the second layer is patterned to form a pattern of holes or wires. The second layer and first layer are then sequentially etched to expose portions of the semiconductor substrate. Exposed portions of the semiconductor substrate are then contacted with an oxidizing agent and a chemical etchant to transfer the pattern to the semiconductor substrate.
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Citations
18 Claims
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1. A method for forming a thermoelectric device, comprising:
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(a) providing a semiconductor substrate; (b) providing a first layer of an etching material adjacent to said semiconductor substrate, wherein said etching material facilitates the etching of said semiconductor substrate upon exposure to an oxidizing agent and a vapor chemical etchant; (c) providing a second layer of a semiconductor oxide adjacent to said first layer; (d) patterning said second layer to form a pattern of holes or wires; (e) sequentially etching said second layer and said first layer to expose portions of said semiconductor substrate; and (f) contacting exposed portions of said semiconductor substrate to said oxidizing agent and said vapor chemical etchant while applying an electrical potential to said semiconductor substrate, to transfer said pattern to said semiconductor substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification