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US3630693A Expired / Lapsed US ⏱️ 0.0 years remaining

Infrared detecting materials

Assignee: JM Huber Corp
•
Filing: 1970-04-06
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Granted: 1971-12-28
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Expires: 1990-04-06
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Abstract

Abstract Infrared detector material is formed by the epitaxial growth of a single crystal alloy of the two III-V compounds InAs and InSb on an InAs substrate. In the method of such growth, a liquid solution is prepared with excess indium solvent, InSb, and sufficient InAs to saturate the indium at 500* C. The InAs substrate, oriented in the III direction is immersed in the solution, and the substrate and the solution are brought to equilibrium at approximately 500* C. Slowly lowering the solution temperature causes a single crystal to be epitaxially grown on the substrate as a solid homogeneous InAs-InSb solution. Composition of the crystal is a function of solution composition and may be controlled by dissolving selected quantities of InSb in the solution.

Inventors

  • 👤 Jerry W Moody
  • 👤 Francis J Reid

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 00:16
CPC Classifications
C; C30; C30B; C30B19/00; C30B19/06; C30B19/062; G; G01; G01J; G01J5/00; G01J5/10; G01J5/28; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528; Y10T428/12681

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 16 words
A composition of matter according to claim 1, wherein the substrate consists essentially of indium arsenide.
Claim 2
Dependent Claim 16 words
A composition of matter according to claim 1, wherein the substrate consists essentially of indium antimonide.
Claim 3
Dependent Claim 39 words
An article of manufacture comprising a substrate consisting of a wafer composed of a compound selected from the group consisting of indium arsenide and indium antimonide having grown thereon a single crystal of a pseudobinary indium arsenide-indium antimonide alloy.

References Cited (Backward Citations)

US3312570A Cited
US3351502A Cited
US3463680A Cited
US3462323A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-27 1975-06-28 1975-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-27 1979-06-28 1979-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-27 1983-06-28 1983-12-28 $7700.00 Window Closed / Lapsed

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