Ultrasonic Evaluation of Interfacial Properties in Layered Substrate

摘要

Layered substrate is a very important type of material. The layer, such as the paint on metal, has been used widely for the purpose of corrosion prevention. The use of a layer as part of surface acoustic wave devices also has been found to have important applications in such high-tech environments as the semiconductor industry. The performance of layered substrate is critically dependent on the bonding conditions between layer and substrate.