The Power Durability of 900 MHz Band Double-Mode-Type Surface Acoustic Wave Filters and Improvement in Power Durability of Al–Cu Thin Film Electrodes by Cu Atom Segregation

Autor: Katsuo Sato, Noritoshi Kimura, Michiyuki Nakazawa, Masahiro Nakano
Rok vydání: 1997
Předmět:
Zdroj: Japanese Journal of Applied Physics. 36:3101
ISSN: 1347-4065
0021-4922
DOI: 10.1143/jjap.36.3101
Popis: The power durability of double-mode-type surface acoustic wave filters, which have recently seen wide use in cellular phones, is investigated. It was found that the lifetime of double-mode-type surface acoustic wave filters is reduced considerably when high input power is applied, due to non-linear behavior. Moreover, the authors demonstrate that the power durability of an Al–Cu thin film electrode is greatly improved by Cu atom segregation in the grain boundaries.
Databáze: OpenAIRE