Method for manufacturing a frequency control device

Details Method for manufacturing a frequency control device Method for manufacturing a frequency control device

1993-09-30

1995-09-05

Vo, Peter

Metal working

Piezoelectric device making

310315, 310344, H01L 4122, H01L 41053

Patent

active

054469546

ABSTRACT:
A method of manufacturing is employed to produce a size-reduced frequency control device (300), according to the present invention. A temperature compensation circuit (304) and an unsealed piezoelectric element (302) are disposed on a substrate (306) such that the compensation circuit and the unsealed piezoelectric element are electrically connected. A hermetic seal (318) is established between a lid (308) and the substrate such that the unsealed piezoelectric element and at least a temperature sensitive portion of the temperature compensation circuit occupy a sealed environment (320). In this manner, dimensions (322, 324) of the frequency control device are reduced.

REFERENCES:
patent: 2278966 (1942-04-01), Williams
patent: 4472652 (1984-09-01), Brice et al.
patent: 4750246 (1988-06-01), Pollard

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