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Sweep Operation
9-19
Staircase sweep programming example
As an example of linear staircase sweep operation, assume the SourceMeter is to be used to
generate the I-V characteristics of a diode. Many diode tests, such as breakdown voltage and
leakage current, require only single-point measurements. Some, such as quality-assurance
analysis of marginal parts, involve performing a complete I-V sweep for detailed analysis.
For the purposes of this test, assume the following basic sweep parameters:
Source Function: current
Sense Function: volts
Source Mode: sweep
Start Current: 1mA
Stop Current: 10mA
Step Current: 1mA
Voltage Compliance: 1V
Source Delay: 100ms
Figure 9-8 shows typical test connections for this test, and Figure 9-9 shows a typical diode
curve. Note that the diode anode is connected to HI, and the cathode is connected to LO. These
connections are required to properly forward bias the diode for the purposes of the test. The test
connections could also be reversed by using negative sweep voltage parameters.
Triax Cable
Optional Noise Shield
HI
LO
KEITHLEY
6430
REMOTE
PreAmp
SENSE
MAINFRAME
Connect to REMOTE
PreAmp connector on rear
panel of mainframe
Preamp Cable
IN/OUT
HIGH
Figure 9-8
Connections for
diode I-V tests
I
leakage
V
forward
I
V
-I
-V
V
reverse
Figure 9-9
Diode I-V curve
Summary of Contents for 6430
Page 26: ......
Page 32: ......
Page 78: ...2 14 Connections ...
Page 98: ...3 20 Basic Source Measure Operation ...
Page 138: ...5 30 Source Measure Concepts ...
Page 156: ...6 18 Range Digits Speed and Filters ...
Page 168: ...7 12 Relative and Math ...
Page 176: ...8 8 Data Store ...
Page 202: ...9 26 Sweep Operation ...
Page 248: ...11 22 Limit Testing ...
Page 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Page 418: ...17 108 SCPI Command Reference ...
Page 450: ...18 32 Performance Verification ...
Page 477: ...A Specifications ...
Page 489: ...B StatusandErrorMessages ...
Page 498: ...B 10 Status and Error Messages ...
Page 499: ...C DataFlow ...
Page 503: ...D IEEE 488BusOverview ...
Page 518: ...D 16 IEEE 488 Bus Overview ...
Page 519: ...E IEEE 488andSCPI ConformanceInformation ...
Page 523: ...F MeasurementConsiderations ...
Page 539: ...G GPIB488 1Protocol ...
Page 557: ......