The Keithely 7174A 8x12 high-speed, low-current matrix card was developed for semiconductor research, development and production, where high-quality, high-performance switching of IV and CV signals is required. The card has a configuration of 8 rows x 12 columns, with the signal and guard switched at each crossing point. The offset current was drastically reduced to less than 100 fA in all ways. The significant reduction in parasitic capacitance of the 7174A speeds up measurements at low levels. The 7174A provides an optimal solution for switching lower-level signals that are common to today's semiconductor characterization tests. The low leakage rate and the minimal dielectric absorption of the card ensure that important device measurements can be carried out many times faster than with current switching technologies. The connections are 3-pin, whereby the outer shell is connected to the chassis for safety and noise protection reasons. The center conductor is completely surrounded by the inner conductive shield, so that fully protected measurements with higher insulation and improved speed and accuracy can be carried out. For applications that require connections to a large number of devices or test points, the Matrix 7174A can be expanded with additional cards. On-card connectors are used to connect the rows (column extension) between other 7174A cards in adjacent slots of the Modeling Switching Mainframe Model 707B. Each 7174A is supplied with eight jack-to-jack cables to simplify expansion. Up to six 7174A cards can be connected to an 8x72 or 12x60 matrix in a single 707A switching mainframe.