Patent ID: 8008818

Claim:
A flat vibration motor provided with a stator plate having a through hole in which one end of a shaft is fit, a cover with an open part covered by the stator plate and having a shaft mounting hole in which the other end of the shaft is fit, and a rotor plate having an axial direction field type rotor magnet and eccentric weight supported to be able to rotate through a slide bearing through which the shaft passes, wherein the stator plate has a magnetic metal core plate having a plurality of detent torque generating spaces around the through hole, printed interconnect patterns arranged on a first electrical insulating film formed on a front surface of this magnetic metal core plate and interconnecting mounted electronic devices with each other, and electrode patterns arranged on a second electrical insulating film formed on a back surface of the magnetic metal core plate and connecting with interconnect patterns through through holes, the insides of the detent torque generating spaces being covered by front-to-back superposed films of extensions of the first electrical insulating film and second electrical insulating film.