Stock material or miscellaneous articles – Composite – Of b – n – p – s – or metal-containing material
Patent
1990-02-20
1991-08-13
Ryan, Patrick J.
Stock material or miscellaneous articles
Composite
Of b, n, p, s, or metal-containing material
428689, 428699, 428901, 428927, 357 16, 357 20, 357 25, 357 70, B32B 900
Patent
active
050395785
ABSTRACT:
A new technique for forming non-rectifying electrical contacts to III-V semiconductor materials, without the use of dopants or of an alloying procedure, is disclosed. In accordance with this technique, an electrical contact is formed simply by depositing a region of material (onto the semiconductor material) having a composition which includes at least one metal element and at least one of three specific Group V elements, i.e., P, As, or Sb, and having a bulk electrical resistivity equal to or less than about 250 .mu..OMEGA.-cm. Alternatively, a contact is formed by depositing nickel, or a nickel-containing material essentially free of gold and silver, and having a composition which does not include any of the three Group V elements. The nickel, or nickel-containing material, is then reacted with the substrate to form a compound having a composition which includes nickel as well as one of the three Group V elements.
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Appelbaum Amiram
Robbins Murray
AT&T Bell Laboratories
Books G. E.
Ryan Patrick J.
Tiegerman B.
Wilde P. V. D.
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