Patent ID: 6509629
Filing Date: 2003-01-21
Classification: H01L,H05K

Abstract:
A power module comprising:a cylindrical case having an open edge at one end, a conductive base plate having an outer peripheral edge fixed to the open edge of the cylindrical case; an insulating substrate having a front face including a circuit pattern and a rear face connected to an upper face of the conductive base plate; a switching semiconductor device mounted on the circuit pattern of the insulating substrate; a control substrate having a front face and a rear face, the control substrate being disposed in the cylindrical case so that the rear face of the control substrate is opposite and spaced from the power insulating substrate by a gap; a control component for controlling the switching semiconductor device, the control component being mounted on the control substrate; a shielding member shielding the control substrate from electromagnetic waves, the shielding member being electrically connected to the conductive base plate; and a rigid conductive connecting member electrically connecting the conductive base plate to the shielding member and supporting the control substrate and the shielding member.