Compound semiconductor and its fabrication
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United States of America Patent
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Oct 27, 1998
Issued Date -
N/A
app pub date -
Jan 23, 1995
filing date -
Jul 5, 1991
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Abstract
A vapor phase growth process for the fabrication of a thin film form of compound semiconductor of elements of Groups III-V, using a halogen element-free hydride and a halogen element-free organic metal as the source materials for growth, is characterized in that a halide gas and/or a halogen gas that are free from the mother elements of the compound to be grown are added to the reaction atmosphere while the compound is growing. A trace amount(s) of the halide and/or halogen gas(es) that are free from the mother elements of the compound to be grown, such as HCl, is added to the reaction atmosphere while the compound is growing, thereby making it possible to flatten the heterojunction interface or effect the growth of high-quality crystals without deposition of polycrystals on a mask over a wide range.
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