Patent ID: 7230307

Claim:
A vertical offset structure, comprising: a substrate; a fixed electrode fixing portion formed on the substrate; a fixed electrode moving portion formed at a position away from an upper portion of the substrate by a predetermined distance; a spring portion operable to connect the fixed electrode fixing portion and the fixed electrode moving portion to each other so that the fixed electrode moving portion moves in a direction substantially perpendicular to a plate surface of the substrate; a movable electrode located away from the upper portion of the substrate by a predetermined distance to have a predetermined interval horizontal to the fixed electrode moving portion; and a cap wafer bonded to a predetermined area of one of the fixed electrode moving portion and the movable electrode by making each of the fixed electrode moving portion and the movable electrode have a vertical offset so that one of the fixed electrode moving portion and the movable electrode moves in a direction substantially perpendicular to the plate surface of the substrate.