| 摘要 |
An apparatus for ultrasonically treating (e.g., cleaning, plating) a workpiece comprises a full wavelength resonator or horn supported at its nodal regions. The antinodal region of the horn is surrounded by a suitable treating liquid, typically, a solvent or liquid metal and a workpiece to be treated is immersed in the liquid in proximity to the nodal region of the horn. In a preferred embodiment, the horn is provided with a depression or aperture at its antinodal region and a workpiece to be treated is inserted into the depression or aperture.
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