Structural and Electrical properties of Piezoelectric ZnO Films Grown by Pulsed Laser Deposition for Film Bulk Acoustic Resonator

마이크로파 통신소자용 ZnO 압전 박막의 구조적 전기적 특성

  • Published : 2005.11.10

Abstract

The characteristics of ZnO films are reported depending on different deposition conditions for film bulk acoustic resonators (FBARs). The ZnO films have been deposited on Al films evaporated on p-type (100) silicon substrate by pulsed laser deposition (PLD) technique using a Nd:YAG laser. These films exhibit an electrical resistivity higher than $10^7$ $\Omega$m. X-ray diffraction measurements have shown that ZnO films are highly c-axis oriented with full width at half maximum (FWHM) below $0.5^{\circ}$. These results show the possibility of FBAR devices using by PLD.

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