Curve tracer

This group of curves makes it very easy to determine the gain of a transistor, or the trigger voltage of a thyristor or TRIAC.

For example, I–V data can be used to study anomalies, locate maximum or minimum curve slopes, and perform reliability analyses.

[3] Curve tracers, especially high-current models, are usually supplied with various semiconductor device test fixture adapters [1] that have Kelvin sensing.

Modern curve tracer instrument designs tend to be modular, allowing system specifiers to configure them to match the applications for which they will be used.

For example, new mainframe-based curve tracer systems can be configured by specifying the number and power level of the Source Measure Units (SMUs) to be plugged into the slots in the back panel of the chassis.

This modular design also provides the flexibility to incorporate other types of instrumentation to handle a wider range of applications.

These mainframe-based systems typically include a self-contained PC to simplify test setup, data analysis, graphing and printing, and onboard results storage.

Modern curve tracers often contain mechanical shields and interlocks that make it more difficult for the operator to come into contact with hazardous voltages or currents.

The Type 575 Transistor-Curve Tracer displays the dynamic characteristic curves of both NPN and PNP transistors on the screen of a 5-inch cathode-ray tube. Several different transistor characteristic curves may be displayed, including the collector family in the common-base and common emitter configuration. In addition to the transistor characteristic curves, the Type 575 is used to display dynamic characteristics of a wide range of semiconductor devices." (Tektronix, Catalog, 1967)