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Title: Bonded electrical contact for thermoelectric semiconductor element



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Claims: We claim:

1. A thermoelectric article which comprises: a thermoelectric member of the telluride class providing a first surface and a first electrically conductive member having a

composite structure comprising

a first relatively thick electrical conductor shoe of an austenitic stainless steel having a second surface and

a first relatively thin adherent layer of a metal selected from the class consisting of iron, tungsten, molybdenum, and niobium directly bonded to and coextensively covering said second surface and providing a third surface,

said first surface being in direct intimate contact with and bonded to said third surface of said first layer.

2. The article of claim 1 wherein said thin layer of metal is of iron.

3. The article of claim 1 wherein said thin layer of metal is of tungsten.

4. The article of claim 1 further including a second electrically conductive member having a composite structure comprising a second relatively thick electrical conductor shoe of an austenitic stainless steel having a fourth surface, said fourth surface being directly bonded to and coextensively covered by a second relatively thin adherent layer of a metal selected from the group consisting of iron, tungsten, molybdenum, and niobium, an opposite surface of said second layer being directly bonded to another surface of said thermoelectric member.

5. The article of claim 4 wherein said first and second layers of said metal are each of tungsten.

6. The article of claim 5 further including an electrical conductor strap metallurgically bonded to each said stainless steel shoe by a braze metal layer disposed thereinbetween.
Other info:


Inventors: Miller, Norman C. (Woodland Hills, CA, US)
Saunders, Richard C. (Simi, CA, US)

Application Number: 437100
Filing Date: 1974-01-28
Publication_date: 1976-10-26
Assignee: Rockwell International Corporation (El Segundo, CA)
Primary Class(es): 136/237 136/238, 257/747, 257/751, 257/930
Other Classes:
US Patent Ref:
3082277Mar, 1963Lane et al.136/237.
3208835Sep, 1965Duncan et al.136/237.
3306784Feb, 1967Roes136/237.
3382109May, 1968Kendal, Jr. et al.136/237.

Other Refs:
Primary Examiner: Behrend, Harvey E.
Assistant Examiner:
Attorney: Humphries; L. Lee, Kolin; Henry