Electronic device including langasite structure compounds and method for making same
First Claim
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1. An electronic device comprising:
- a piezoelectric layer comprising an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is selected from the group consisting of niobium and tantalum, C is gallium, D is silicon, and E is oxygen; and
at least one electrode connected to said piezoelectric layer.
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Abstract
An electronic device includes a piezoelectric layer formed of an ordered Langasite structure compound having the formula A3BC3D2E14, 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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Citations
42 Claims
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1. An electronic device comprising:
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a piezoelectric layer comprising an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is selected from the group consisting of niobium and tantalum, C is gallium, D is silicon, and E is oxygen; and
at least one electrode connected to said piezoelectric layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 41, 42)
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14. An electronic device comprising:
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a piezoelectric layer comprising an ordered Langasite structure compound having the formula CA3NbGa3Si2O4; and
at least one electrode connected to said piezoelectric layer.
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24. An electronic device comprising:
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a piezoelectric layer comprising an ordered Langasite structure compound having the formula CA3TaGa3Si2O4; and
at least one electrode connected to said piezoelectric layer.
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34. A method for making an electronic device comprising:
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providing a piezoelectric layer comprising an ordered Langasite structure compound having the formula A3BC3D2E14, wherein A is calcium, B is selected from the group consisting of niobium and tantalum, C is gallium, D is silicon, and E is oxygen; and
connecting at least one electrode to the piezoelectric layer.
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Specification