Model CSM/Win-TFT TEST SYSTEMS allows electrical measurements of thin film transistors (TFT's) used in flat panel displays (FPD's). MDC TFT TEST SYSTEMS can quickly and efficiently measure critical transistor parameters without the need for expensive parametric testers. Various model TFT TEST SYSTEMS are available for testing both linear and saturation characteristics to find parameters like I_ON, I_OFF, mobility, and threshold voltage.