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SAMPLE

Figure 2-11. Resistivity Measurement Using the Model ?24

2.4.3 Diode Characterization

With the Model 224 it is possible to obtain the necessary data

volts function, allows the measurement to be made accurate-

to plot I-V current-voltage characteristics of a diode over

ly. Figure 2-13 shows several examples of diodes whose

several decades. Figure 2-12 shows the configuration to be

curves have been plotted using the configuration of Figure

used. The Model 614, with its high input resistance in the

2-12.

I-

MODEL 224

MODEL 614

ELECTROMETER

Figure 2-12. Diode Characterization

lOOpA

1 I

I I

.2 .3 .4 .5 .6 VF

Figure 2-13. Diode Curves

2-13

Keithley 224 User Manual

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