Abstract: A semiconductor module, including: a first circuit board and a second circuit board respectively have a first switching element and a second switching element located thereon, each of the first and second switching elements having an emitter electrode; a first connecting portion and a second connecting portion respectively electrically connected to the emitter electrodes of the first and second switching elements over the first and second circuit boards; an auxiliary emitter terminal; and an auxiliary emitter wiring electrically connected to the auxiliary emitter terminal. The auxiliary emitter wiring includes: a branch point, a common wiring portion which connects the auxiliary emitter terminal and the branch point, and a first discrete wiring portion and a second discrete wiring portion which connect the branch point respectively to the first and second connecting portions, and which each have an inductance smaller than 10 percent of an inductance of the common wiring portion.

Abstract: A miniature motor comprising a housing made of a metallic material, formed into a bottomed hollow tubular shape and having a permanent magnet fixedly fitted to the inner circumferential surface thereof, a rotor consisting of an armature facing the permanent magnet and a commutator, an end cap engaged with an open end of the housing, and having brushes making sliding contact with the commutator and a pair of terminals electrically connected to the brushes; the rotor being rotatably supported by bearings provided on the bottom part of the housing and the end cap, in which a flat groove including a plane parallel to the axial line of the motor and opening toward the housing is provided on the end cap; the terminals being disposed to face the side of the groove, a chip laminated capacitor and a spring made of an electrically conductive material and formed into a substantially U shape in planar projection being disposed in the groove so as to come into contact with each other and also with the terminals.