Patent ID: 11872581
Assignee: DISCO CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 5:
6. An ultrasonic vibration horn that concentrates ultrasonic vibration at one point and gives the ultrasonic vibration to a workpiece, the ultrasonic vibration horn comprising:
a piezoelectric vibration plate including a dome part, a flange part that projects outward in a radial direction from a peripheral edge of the dome part, and an annular plate that projects outward in the radial direction from a peripheral edge of the flange part; and
a housing that supports the annular plate of the piezoelectric vibration plate in such a manner that a recessed surface side of the dome part is oriented toward a side of the one point at which the ultrasonic vibration is desired to be concentrated,
wherein the flange part is integral with the dome part and supported in the water accumulation part by the annular plate,
wherein the dome part comprises a pair of electrodes, and the flange part is integral with a first electrode of the pair of electrodes,
wherein the pair of electrodes are arranged in stacked relationship, and the first electrode is a lower electrode in the stacked relationship, and
wherein an outer circumferential part of the annular plate projects inwardly in the radial direction from an inner surface of a sidewall of the housing.