Crystal plating apparatus

Details Crystal plating apparatus Crystal plating apparatus

1979-04-30

1980-12-02

Hoffman, James R.

Coating apparatus

Gas or vapor deposition

With treating means

427 10, 427100, C23C 1308, C23C 1302

Patent

active

042364876

ABSTRACT:
A crystal plating device and method thereof in which a crystal to be plated and thereby set at a desired frequency is placed in an external removable holder or slug for insertion into a chamber of a plating device. The device is connected to a vacuum pump which is activated after the slug is loaded. Spring loaded filament posts carry a filament of precious metal such as gold or silver. The crystal is oscillated at a predetermined frequency prior to the filament being energized to evaporate or atomize the metal which plates the crystal and sets its frequency identical to that of the oscillator.
The slug is externally loaded and can carry different size crystals. It is fitted with masks to accurately direct the deposit of the metal upon either or both sides of the crystal. After plating the slug is easily removed from the plating device.

REFERENCES:
patent: 2765765 (1956-10-01), Bigler et al.
patent: 3756851 (1973-09-01), Rennick et al.
patent: 3864161 (1975-02-01), Thompson
patent: 4112134 (1978-09-01), Buynak et al.
patent: 4112147 (1978-09-01), Thompson

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