| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a semiconductor relay whereby the waveform quality of a high frequency signal is hardly deteriorated in the case of passing the high frequency signal through the transmission path of an output signal. <P>SOLUTION: The semiconductor relay comprises: a light emitting diode 4; a light receiving chip 7; and a pair of output MOSFETs 1a, 1b, the light emitting diode 4 generates an optical signal in response to an input signal, a photo diode array 5 in the light receiving chip 7 receives an optical signal of the light emitting diode 4 to generate a photoelectromotive force, and a charging/discharging control circuit 6 in the light receiving chip 7 efficiently controls charging/discharging electric charges between gates and sources of the output MOSFETs 1a, 1b by the photoelectromotive force. The gate electrodes 3 of the output MOSFETs 1a, 1b are interconnected via a gate connection member 13a and a gate line 23, the source electrodes 2 of the output MOSFETs 1a, 1b are interconnected by an inter-source connection member 15, and only the source electrode 2 of the output MOSFET 1a is connected to a source line 22 by a source connection member 12a. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
