Metal treatment – Compositions – Heat treating
Patent
1981-12-01
1984-09-04
Roy, Upendra
Metal treatment
Compositions
Heat treating
29576B, 29571, 148187, 357 91, H01L 21263, H01L 2126
Patent
active
044695276
ABSTRACT:
A semiconductor substrate is formed by irradiating a semiconductor substrate with radioactive ray so as to generate lattice defects therein for making the entire substrate semi-insulating and then rendering only the surface of the thus irradiated substrate semiconductive, so that a semiconductor device is produced by using the substrate thus formed.
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Sugano Takuo
Vu Ho Q.
Roy Upendra
Tokyo University
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