| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic dryer that can easily and securely dry liquid adhering to a thin film section. SOLUTION: A tip surface 10 is an ultrasonic radiation surface for radiating an ultrasonic wave, a standing wave is formed between the tip surface 10 and an ultrasonic-wave reflector 14, and a position that becomes the node of sound pressure is formed at specific intervals. Since a lead frame 1 moves while being inclined to the tip surface 10 and the ultrasonic-wave reflector 14 by an angle θ, a position that becomes the node of a sound pressure is allowed to coincide with at least one place on the lead frame 1, thus eliminating the need for accurately positioning the lead frame 1 to the position that becomes the node of the sound pressure between the ultrasonic-wave reflector 14 and the tip surface 10 as compared with a case where the lead frame 1 is arranged in parallel with the tip surface 10 and the ultrasonic-wave reflector 14. |
