| US 7,515,018 B2 | ||
| Acoustic resonator | ||
| Martin Handtmann, Nabburgerstrasse 19, 81737 Munich (Germany); Jyrki Kaitila, Jyrki Kaitila c/o Infineon Technologies, IFAG COM PS RF M BAW, Am Campeon 1-12, 85579 Neubiberg, Munich (Germany); Andreas Meckes, Höhenstadler Str. 29, 81671 Munich (Germany); and Lueder Elbrecht, Talwergweg 7b, 81825 Munich (Germany) | ||
| Filed on Aug. 31, 2006, as Appl. No. 11/513,895. | ||
| Prior Publication US 2008/0055020 A1, Mar. 06, 2008 | ||
| Int. Cl. H03H 9/00 (2006.01) | ||
| U.S. Cl. 333—133 [333/134] | 21 Claims |
| 1. An acoustic resonator, comprising:
a stack of a first and a second piezoelectric body, wherein said first and second piezoelectric bodies have substantially
the same spatial piezoelectric orientation;
an intermediate electrode being arranged between said first and said second piezoelectric body forming a first terminal of
said acoustic resonator; and
first and second electrodes, wherein said first electrode is arranged such that said first piezoelectric body is arranged
between said first electrode and said intermediate electrode, wherein said second electrode is arranged such that said second
piezoelectric body is arranged between said second electrode and said intermediate electrode, and wherein said first and said
second electrode are electrically connected to each other forming a second terminal of said acoustic resonator.
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