Electronic device including langasite structure compounds and method for making same
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United States of America Patent
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Jul 23, 2002
Grant Date -
Mar 7, 2002
app pub date -
May 3, 2001
filing date -
May 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A.sub.3 BC.sub.3 D.sub.2 E.sub.14, wherein A is calcium, B is niobium or tantalum, C is gallium, D is silicon, and E is oxygen. At least one electrode is connected to the piezoelectric layer and may be configured to define a device, such as a SAW resonator or filter, or a BAW resonator or filter. The ordered Langasite structure compound may have a substantially perfectly ordered structure.
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