Switching matrix apparatus for semiconductor characteristic measurement apparatus

摘要

A switching matrix apparatus includes relay switches for opening/closing the electrical connections between input lines and output lines and an LED matrix in which LEDs are arranged in a matrix so as to correspond to the respective relay switches. Each LED distinctively indicates a status, defined by the combination of the open/closed state of each relay switch corresponding to the LED and an instruction attribute for specifying opening/closing, by using a plurality of emitted light colors. The LEDs indicate whether or not the user can set the combinations of inputs and outputs.