Patent ID: 8018311

Claim:
A micro-miniature power converter, comprising: a. means for magnetic induction including a thin magnetic induction element comprised of: (1) a magnetic insulating substrate having first and second principal planes, and a plurality of through-holes defined there through; (2) a coil formed on a central region of the magnetic insulating substrate; (3) a plurality of electrodes formed on the first and second principal planes at peripheral regions of the magnetic insulating substrate, and electrically connected to the magnetic insulating substrate via the through-holes; (4) wiring formed on the first principal plane in the central region of the magnetic insulating substrate, one end of the wiring being connected to one electrode of the plurality of electrodes; and (5) an insulator layer provided between the wiring and the coil; and b. a plurality of components positioned in a planar arrangement on the thin magnetic induction element and comprised of: (i) a capacitor that is connected to the wiring; and (ii) a semiconductor element that is smaller than the thin magnetic induction element, that is positioned to substantially overlap the coil, and that includes a semiconductor integrated circuit formed thereon that is connected to the wiring, so that the components are packaged in the planar arrangement without restriction on positioning of the plurality of electrodes formed in the peripheral regions.