| 摘要 |
An apparatus for forming compound semiconductors, which has a plurality of closed type crucibles for separately holding and vaporizing the component elements of a desired compound semiconductor thin-film, the crucibles each having at least one injection nozzle, a plurality of temperature control sections for separately controlling vapor pressures inside the crucibles so that the vapors jetted from the injection nozzles of the crucibles may form clusters, a plurality of ionization chambers provided in the vicinity of the injection nozzles of the crucibles respectively for ionizing the clusters, and acceleration power supplies provided between a substrate and the ionization chambers for giving kinetic energy to the cluster ions to make them impinge on the surface of the substrate so as to form a thin film thereon.
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