Patent ID: 7643197

Claim:
A method of manufacturing an oscillator based on etching a monocrystal silicon substrate, the oscillator including a supporting base plate, a torsion spring and a movable member supported by the torsion spring for oscillatory motion around a torsional axis relative to the supporting base plate, and the oscillator having at least one resonance frequency around the torsional axis, said method comprising: a mask forming step for forming, on the monocrystal silicon substrate, an etching mask having a pattern with a repetition shape comprised of a plurality of mutually coupled oscillators each including the torsion spring between the supporting base plate and the movable member; an etching step for etching the monocrystal silicon substrate while using the etching mask as a mask, to form on the monocrystal silicon substrate a repetition shape comprised of a plurality of corresponding mutually coupled oscillators; and a dicing step for determining a width of the movable member and the supporting base plate of each of the oscillators in the repetition shape as formed at said etching step, which width is effective to determine a resonance frequency of the individual oscillators required when these are used as oscillators, and for cutting by dicing the movable member and the supporting base plate between adjoining oscillators, at the determined width.