Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1977-03-02
1980-07-01
Bernstein, Hiram H.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156605, 73 23, B01J 1734
Patent
active
042104866
ABSTRACT:
A process for determining the effective doping agent content of hydrogen the production of semiconductors which comprises zone drawing a silicon rod of highest purity and having a known specific resistance, in the presence of hydrogen to be tested, subsequently redetermining the specific resistance of the silicon rod, and computing the concentration of the doping agent in the hydrogen used from the known relationship between the specific resistance and the amount of doping agent. By stepwise determination of the resistance along the longitudinal axis of the rod, the amount of doping agent built into the rod at different levels can thus be determined.
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patent: 3108073 (1963-10-01), Vanik
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patent: 3162526 (1964-12-01), Vanik
patent: 3211654 (1965-10-01), Jacob
patent: 3607109 (1971-09-01), Capita
Irvin, Bell System Tech. Journal, vol. 41, p. 387 and foll., 1962.
ASTM, Poly Silicon Evaluation, 2nd Draft, Mar. 1972, p. 7.
Herzer Heinz
Hofer Johann
Schmidt Dietrich
Bernstein Hiram H.
Collard Allison C.
Galgano Thomas M.
Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
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