Leydig, Voit & Mayer, Ltd.
Ultrasonic cleaning method and ultrasonic cleaning apparatus
An ultrasonic cleaning method for cleaning an object in a liquid in which a gas is dissolved includes preparing the liquid in which the gas is dissolved. The object is cleaned while applying ultrasonic waves to the liquid so that a ratio determined by dividing a vibration strength of the liquid at a fourth-order frequency of the ultrasonic waves by a vibration strength of the liquid at a fundamental frequency of the ultrasonic waves is larger than 0.8/1000.
SILTRONIC AG
B
B08B
inventional
Yoshihiro Etsuko Teruo Masashi
Mori Kubo Haibara Uchibe