Superhigh-frequency surface-acoustic-wave transducers using AlN layers grown on SiC substrates

被引:77
作者
Takagaki, Y [1 ]
Santos, PV [1 ]
Wiebicke, E [1 ]
Brandt, O [1 ]
Schönherr, HP [1 ]
Ploog, KH [1 ]
机构
[1] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany
关键词
D O I
10.1063/1.1509471
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate the operation of surface-acoustic-wave (SAW) transducers fabricated on AlN/SiC structures at frequencies as high as 19 GHz. The high SAW velocity of the AlN film is enhanced by the even higher sound velocity of the SiC substrate, enabling us to achieve these frequencies with a SAW wavelength of 400 nm. (C) 2002 American Institute of Physics.
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页码:2538 / 2540
页数:3
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