Patent ID: 8816310
Filing Date: 2014-08-26
Classification: H01L,H03K

Abstract:
1. A semiconductor relay, comprising: two MOSFETs serially connected to each other, the MOSFETs having parasitic diodes reversely arranged with respect to each other; a light emitting element having a pair of terminals, the light emitting element being configured to emit light as a specified electric power is applied between the terminals; a light-receiving drive element configured to switch on and off the two MOSFETs depending on the presence and absence of the light emitted by the light emitting element; two output conductor plates made of an electrically conductive material, each of the output conductor plates being electrically connected to one end of each of serial circuits of the two MOSFETs; two input conductor plates made of an electrically conductive material, each of the input conductor plates being electrically connected to the respective terminals of the light emitting element; and an encapsulating resin configured to encapsulate the two MOSFETs, the light emitting element, the light-receiving drive element, the two output conductor plates and the two input conductor plates, wherein the two output conductor plates and the two input conductor plates includes terminal portions protruding outside the encapsulating resin, the terminal portions being mounted on a common printed circuit board, wherein the two output conductor plates includes mount portions on which the two MOSFETs are respectively mounted or on which drain electrodes of the two MOSFETs are respectively connected, the mount portions are encapsulated by the encapsulating resin, and a thickness direction of the mount portions intersects a thickness direction of the printed circuit board, and wherein the two MOSFETs are located between the light-receiving drive element and the printed circuit board.