Coating processes – Measuring – testing – or indicating – Thickness or uniformity of thickness determined
Patent
1977-03-04
1978-11-14
Smith, John D.
Coating processes
Measuring, testing, or indicating
Thickness or uniformity of thickness determined
427 10, 427 86, 427 95, 423349, 423350, 118 7, 118 9, B05D 512, B01J 1728
Patent
active
041256433
ABSTRACT:
A semiconductor material, such as elemental silicon, is deposited on heated rod-shaped mandrels from a reactive gas stream capable of pyrolytically depositing silicon wherein the gas stream is regulated in such a manner that the silicon deposition rate remains constant per cubic centimeter of mandrel surface throughout the deposition process.
REFERENCES:
patent: 3120451 (1964-02-01), Schmidt et al.
patent: 3853974 (1974-12-01), Reuschel
Dietze Wolfgang
Reuschel Konrad
Rucha Ulrich
Siemens Aktiengesellschaft
Smith John D.
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