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

Claim 1:
2. A piezoelectric vibration plate comprising:
a dome part;
a flange part that projects outward in a radial direction from a peripheral edge of the dome part;
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,
wherein the flange part is integral with the dome part and supported 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, and
wherein the pair of electrodes are arranged in stacked relationship, and the first electrode is a lower electrode in the stacked relationship,
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.