Sacrificial quartz crystal mount

Details Sacrificial quartz crystal mount Sacrificial quartz crystal mount

1990-01-26

1991-07-09

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310344, 310351, H01L 4108

Patent

active

050308750

ABSTRACT:
In a conventional quartz crystal resonator, a sacrificial quartz layer attached to the mounting posts and between the active, vibrating quartz layer and the package base reduces mechanical stresses on the active quartz layer caused by thermal expansion coefficient differences. The intermediate quartz layer is a sacrificial layer which acts to maintain the spacing of mounting posts.

REFERENCES:
patent: 3046423 (1962-07-01), Wolfskill et al.
patent: 3754153 (1973-08-01), Carpenter et al.
patent: 3805098 (1974-04-01), Carpenter et al.
patent: 3876891 (1975-04-01), Schubotz
patent: 3906260 (1975-09-01), Oguchi
patent: 4266157 (1981-05-01), Peters
patent: 4317059 (1982-02-01), Besson
patent: 4418299 (1983-11-01), Momosaki
patent: 4608510 (1986-08-01), Dinger et al.
patent: 4626732 (1986-12-01), Debaisieux et al.

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