Method for manufacturing surface wave devices of the end-face re

Details Method for manufacturing surface wave devices of the end-face re Method for manufacturing surface wave devices of the end-face re

1996-07-01

1998-09-08

Hall, Carl E.

Metal working

Piezoelectric device making

310313B, H01L 4122

Patent

active

058026851

ABSTRACT:
A method of manufacturing a surface wave device of an end-face reflection type comprising forming an IDT 12 on a piezoelectric plate 11, and cutting the piezoelectric plate 11 in a direction which is parallel to the outermost electrode fingers of the IDT within a target area which extends from the out edges of the outermost electrodes to a position .lambda./8 outwardly therefrom, .lambda. being the wavelength of the surface wave generated by the IDT, so as to form opposite end faces of the surface wave device.

REFERENCES:
Patent Abstracts of Japan, vol. 17, No. 599 (E-1455), Nov. 2, 1993, and JP-A-05 183376 (Murata Mfg. Co. Ltd.), Jul. 23, 1993.
Patent Abstracts of Japan, vol. 9, No. 169 (E-328), Jul. 13, 1985 and JP-A-60 041809 (Fujitsu KK), Mar. 1985.
Michio Kadota et al., "Ceramic Resonators Using BGS Waves", Japanese Journal of Applied Physics, Supplements, vol. 31, No. Suppl. 31-1, Jan. 1, 1992, pp. 219-221.

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