ACOUSTIC MICRO BORING DEVICE

摘要

An acoustic micro boring device for boring a micro bore in the surface of an individual without using a large scale device while suppressing destructive action in close proximity of the periphery of the hole. In the acoustic micro boring device for boring a micro bore in the surface of a film or a solid in the water with acoustic energy, plus and minus voltage difference in the waveform of an acoustic oscillation drive signal has an asymmetric and acute peak waveform, and an electrically insulating, acoustic wave transmitting coating or protective agent having a thickness of 10 micron or above is provided on the surface of an acoustic wave oscillating section.