ACTIVE ACOUSTIC DEVICES.
Interim rept., 1 Apr-30 Jun 65,
MOTOROLA INC PHOENIX ARIZ SEMICONDUCTOR PRODUCTS DIV
Pagination or Media Count:
Thin film transducer techniques have yielded conversion losses of 6 to 8 db with bandwidths of the order of 50 in the frequency range of 100 to 300 megacycles. Surface roughness and pinholes have caused major interface problems between the transducer and the drift field contacts. The dependence of RF performance upon crystal length and lateral dimensions and the dependence of crystal temperature upon cross section were investigated. The electrical and acoustic parameters which characterize a strong electroacoustic gain interaction are summarized. A correlation between the gain properties of a sample and its etch pit density was determined. Author
- Electrical and Electronic Equipment
- Solid State Physics