Surface acoustic wave device
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United States of America Patent
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Oct 30, 2001
Grant Date -
N/A
app pub date -
Mar 23, 2000
filing date -
Mar 25, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An SAW device including a glass substrate, an LiNbO.sub.3 (LN) substrate, and an electrode. When a pitch of the electrode is .lambda., a thickness of the LN substrate is H, and K equals to 2.pi./.lambda., a product of K and H is at least 1.6 and at most 1.8. Accordingly, a SAW device which can advantageously reduced in size and provided with an enhanced temperature characteristic is obtained while ensuring high K.sup.2.
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