Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1981-05-01
1984-03-27
Bernstein, Hiram H.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156DIG77, 156DIG72, 156DIG89, C30B 2306
Patent
active
044392664
ABSTRACT:
Disclosed herein is a process for growing II-IV semiconductor crystals which includes providing both a II-IV semiconductor source material and a crystal growth support member in a predetermined dynamic vacuum. This vacuum is sufficient to create a predetermined overpressure at the source material and simultaneously remove impurities therefrom. The temperature of the support member is initally raised to a predetermined level above the temperature of the source material to thereby prevent vapor transport between the two. Then, the temperature of the support member is lowered to a predetermined value below that of the source material to produce a disassociation of elemental gases from the source material and initiate controlled vapor transport of the elemental gases from the source material to the support member. In this manner, compound semiconductor crystals of high purity and stoichiometry are formed on the surface of the support member.
REFERENCES:
patent: 4030964 (1977-06-01), Schieber et al.
J1 of Vacuum Science and Technology, V8 No. 3, May-Jun. 1971.
Bowers John L.
Gentile Anthony L.
Stafsudd Oscar M.
Bernstein Hiram H.
Bethurum W. J.
Hughes Aircraft Company
Karambelas A. W.
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