Process for stabilizing in time a piezoelectric resonator

Details Process for stabilizing in time a piezoelectric resonator Process for stabilizing in time a piezoelectric resonator

1981-11-19

1983-08-09

Hoffman, James R.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427100, B05D 312

Patent

active

043978843

ABSTRACT:
The invention relates to piezoelectric resonators formed from a block of a crystalline material. During finishing of such resonators, some of the faces thereof, the distances between which define the frequency, are subjected to abrasive operations which alter the surface state of the network, with surface cracks, dislocations and fragmentations. The invention provides a process for implanting light ions on these faces (He, Li, Be) after finishing, by creating therein a layer of vitreous protection silica from the crystallized quartz.

REFERENCES:
patent: 2989799 (1961-06-01), Mason
patent: 3914836 (1975-10-01), Hafner et al.
Proceedings of the 27th Annual Frequency Control Symposium, Electronic Industries Association, J. Vig et al., "Surface Preparation and Characterization Techniques for Quartz Resonators", pp. 98-112.
Wescon Technical Papers, vol. 20, No. 20, 1976, M. Bloch et al. "Crystal Survey", pp. 32/3-1, 32/3-14.

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