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US3785884A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for depositing a semiconductor material on the substrate from the liquid phase

Assignee: RCA Corp
•
Filing: 1972-07-21
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Granted: 1974-01-15
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Expires: 1992-07-21
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Abstract

Abstract A layer of a semiconductor material is epitaxially deposited on a substrate by liquid phase epitaxy wherein a heated solution of the semiconductor material dissolved in a molten solvent is brought into contact with a surface of the substrate and the solution and substrate are cooled to deposit the semiconductor material on the substrate. During the cooling of the solution and the substrate heat is radiated from the substrate faster than from the solution so that the substrate is at a temperature slightly below the temperature of the solution. The heat radiation differential can be achieved by carrying out the method in a container having a heat radiation window therethrough over which the substrate is mounted.

Inventors

  • 👤 H Lockwood

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 11:47
CPC Classifications
C; C30; C30B; C30B19/00; C30B19/08; Y; Y10; Y10S; Y10S117/00; Y10S117/90

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-14 1977-07-16 1978-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-14 1981-07-16 1982-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-14 1985-07-16 1986-01-15 $7700.00 Window Closed / Lapsed

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