Metal treatment – Process of modifying or maintaining internal physical... – Chemical-heat removing or burning of metal
Patent
1981-01-26
1983-02-15
Ozaki, G.
Metal treatment
Process of modifying or maintaining internal physical...
Chemical-heat removing or burning of metal
148188, 148190, H01L 21223
Patent
active
043739750
ABSTRACT:
Alumina or aluminum is arranged on, or in the vicinity of, a wafer surface into which an impurity, particularly antimony, is to be diffused, and the impurity is vapor-diffused.
The impurity can be diffused in much larger quantities than in a prior art vapor diffusion, and a very low sheet resistance for the diffused layer of antimony can be attained.
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Kozuka Hirotsugu
Nanba Mitsuo
Ogirima Masahiko
Shintani Akira
Hitachi , Ltd.
Ozaki G.
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