IEEE Transactions on Ultrasonics, Ferroelectrics,
and Frequency Control

MAY 1995 Volume 42 Number 3

CONTENTS

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SPECIAL ISSUE ON THIN FILMS FOR ACOUSTOELECTRONICS

Introduction to the Special Issue
N. Chubachi, F. S. Hickernell, and A. Venema. . .329

Ultrafast Generation of Acoustic Waves in Copper
O. B. Wright and V. E. Gusev. . .331

Multi-Layered Ultrasonic Transducers Employing Air-Gap Structure
S. Yoshimoto, M. Sakamoto, K. Hashimoto, and M. Yamaguchi. . .339

Piezoelectric Properties of Zinc Oxide Films on Glass Substrates Deposited by RF-Magnetron-Mode Electron Cyclotron Resonance Sputtering System
M. Kadota and M. Minakata. . .345

ZnO Films on {001}-Cut <110>-Propagating GaAs Substrates for Surface Acoustic Wave Device Applications
Y. Kim, W. D. Hunt, F. S. Hickernell, R. J. Higgins, and C.-K. Jen. . .351

Theoretical Study on SAW Characteristics of Layered Structures Including a Diamond Layer
H. Nakahata, A. Hachigo, K. Higaki, S. Fujii, S. Shikata, and N. Fujimori. . .362

Line-Focus Acoustic Microscopy Measurements of Nb₂O₅/MgO and BaTiO₃/LaAlO₃Thin-Film/Substrate Configurations
Y.-C. Lee, J. D. Achenbach, M. J. Nystrom, S. R. Gilbert, B. A. Block, and B. W. Wessels. . .376

SAW Velocity Measurement of Crystals and Thin Films by the Phase Velocity Scanning of Interference Fringes
K. Yamanaka, Y. Nagata, S. Nakano, T. Koda, H. Nishino, Y. Tsukahara, H. Cho, M. Inaba, and A. Satoh. . .381

Elastic Properties Measurement of Glass Layers Fabricated on Silicon Wafers for Microelectronics and Micromachines<
Y. Tsukahara, K. Ohira, M. Yanaka, M. Inaba, and A. Satoh. . .387

High Temperature Stable GHz-Range Low-Loss Wide Band Transducers and Filter Using SiO₂/LiNbO₃,LiTaO₃
K. Yamanouchi, H. Satoh, T. Meguro, and Y. Wagatsuma. . .392

Deposition Parameter Studies and Surface Acoustic Wave Characterization of PECVD Silicon Nitride Films on Lithium Niobate
J. H. Hines, D. C. Malocha, K. B. Sundaram, K. J. Casey, and K. R. Lee . . .397

The Characterization of Sputtered Polycrystalline Aluminum Nitride on Silicon by Surface Acoustic Wave Measurements
H. M. Liaw and F. S. Hickernell. . .404

Surface Acoustic Wave Characterization of PECVD Films on Gallium Arsenide
F. S. Hickernell and T. S. Hickernell. . .410

Effect of the Beam-Vessel Angle on the Received Acoustic Signal from Blood
K. Whittaker Ferrara. . .416

Synthetic Aperture Imaging for Small Scale Systems
M. Karaman, P.-C. Li, and M. O'Donnell. . .429

A Study of Quartz Tuning Fork Resonators in the Second Flexural Mode
E. Momosaki, T. Kaneko, and T. Shimoda. . .443

Estimating Mean Scatterer Spacing with the Frequency-Smoothed Spectral Autocorrelation Function
T. Varghese and K. D. Donohue. . .451

Quantization Bit Rate Reduction in Scanning Tomographic Acoustic Microscopy
S. D. Kent and H. Lee. . .464