![background image](http://html.mh-extra.com/html/keithley/6430/6430_instruction-manual_661765230.webp)
11-4
Limit Testing
Limit test modes
There are two modes of operation for limit tests; grading and sorting. For Limit 1 test (com-
pliance), operation is similar for both limit test modes. If Limit 1 test fails, the
“
FAIL
”
message
is displayed and the testing process for that DUT (or DUT element) is terminated. A pass con-
dition allows the testing process to proceed to the next enabled limit test.
With the grading mode selected, each enable software test (Limit 2, 3, 5-12) is performed
until a failure occurs. When a test fails, the
“
FAIL
”
message is displayed and the testing pro-
cess for that DUT (or DUT element) is terminated.
With the sorting mode selected, each enabled software test (Limit 2, 3, 5-12) is performed
until a test passes. When a test passes, the
“
PASS
”
message is displayed and the testing process
for that DUT is terminated.
Binning
Even though no additional equipment is required to perform limit tests on the DUT, the
SourceMeter is typically used with a component handler to perform binning operations. After
the testing process, the DUT will be placed in an assigned bin.
For the grading mode, the binning system can be further automated by adding a scanner.
With the use of a scanner, the tests can be repeated (cycled) to test individual elements of a sin-
gle package (i.e., resistor network). See
Binning systems
for more information on using compo-
nent handlers and scanners to perform binning operations.
Operation overview
Grading mode
Grading mode limits operation is detailed by the
fl
owchart in Figure 11-2. A test is only per-
formed if it is enabled. If disabled, operation proceeds to the next test. The following assumes
the
fi
rst three limit tests are enabled and the digital output of the SourceMeter is connected to a
component handler for DUT binning. See
Binning systems
. If a handler is not used, ignore dig-
ital input/output (handler interface) actions.
With the limit tests properly con
fi
gured, turn the SourceMeter output on and press the
LIMIT key. The testing process will start when the component handler sends the SOT (start-of-
test) strobe pulse to the SourceMeter. Note that if a handler is not used, testing will start when
LIMIT is pressed. Pressing LIMIT a second time terminates the testing process.
As shown in the
fl
owchart, limit tests are performed after a measurement conversion.
Содержание 6430
Страница 26: ......
Страница 32: ......
Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
Страница 498: ...B 10 Status and Error Messages ...
Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
Страница 557: ......