Keithley 4200A-SCS Reference Manual

Model 4200A
-SCS Parameter Analyzer Reference Manual Section 4: Multi-frequency capacitance-
voltage unit
4200A-901-01 Rev. C / February 2017 4-39
cvu-bjt connections
The next figures show the basic test configurations. Note that the untested terminal must be
connected to the outer shield of the SMA cables to guard unwanted capacitance from affecting
measurement accuracy. For example, when measuring the collector-base capacitance (c-cb0), the
emitter terminal is guarded by connecting it to the outer shield of the SMA cables.
Refer to Typical 4210-CVU test connections to a DUT (on page 4-6
) for connection details. Use only
the supplied (red) 100 Ω SMA cables for connections to the 4210-CVU. Be sure that all SMA cables
are the same length (1.5 m or 3 m).
After making or changing connections, be sure to use the Confidence Check diagnostic tool and do
connection compensation tests. Refer to Confidence Check (on page 4-19) and Connection
compensation (on page 4-10) for details.
Figure 120: Basic configurations for BJT c-cb0 test
Figure 121: Basic configurations for BJT c-ce0 test

Keithley 4200A-SCS Specifications

General

Brand	Keithley
Model	4200A-SCS
Category	Measuring Instruments
Language	English