C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
117/85, 148/2.1
C23C 16/30 (2006.01) C30B 25/02 (2006.01) C30B 29/42 (2006.01) H01L 21/205 (2006.01)
Patent
CA 1274429
ABSTRACT OF THE DISCLOSURE A vapor phase deposition method for GaAs thin films is disclosed which is an improvement in the metal organic chemical vapor deposition method (MOCVD method) wherein arsine gas and organic gallium gas are decomposed thermally and GaAs crystals are allowed to deposit onto the GaAs substrate. For the deposition of n-type conductive GaAs crystals, arsine gas and organic gallium gas are supplied at a ratio (V/III) so that p-type conductive GaAs crystals would be deposited in the absence of an impurity and a gas of a compound of a Group VI element is added to these gases to make n-type conductive GaAs crystals having a carrier density of not less than 1 x 1016 cm-3.
509282
Ikeda Masakiyo
Kashiwayanagi Yuzo
Kikuchi Hiroshi
Kojima Seiji
Borden Ladner Gervais Llp
Ikeda Masakiyo
Kashiwayanagi Yuzo
Kikuchi Hiroshi
Kojima Seiji
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