Metal treatment – Barrier layer stock material – p-n type – With contiguous layer doped to degeneracy
Patent
1980-12-17
1983-07-19
Roy, Upendra
Metal treatment
Barrier layer stock material, p-n type
With contiguous layer doped to degeneracy
148 15, 148187, 357 59, 357 91, H01L 21263, B05D 306
Patent
active
043941915
ABSTRACT:
A polycrystalline silicon film is implanted with an impurity in large amounts and is heated to be annealed, whereupon it is irradiated with a laser beam to be annealed.
Thus, a polycrystalline silicon film of very low resistivity consisting of a second layer whose activated impurity concentration is equal to or below a solid solubility and a first layer whose activated impurity concentration is above the solid solubility is formed.
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Miyao Masanobu
Ohkura Makoto
Tamura Masao
Tokuyama Takashi
Usui Hiroo
Hitachi , Ltd.
Roy Upendra
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