Series 2600B System SourceMeter® Instrument Reference Manual
Section 2: General operation
2600BS-901-01 Rev. B / May 2013
2-45
Figure 14: Contact check measurements
Contact check commands
The following table summarizes the basic contact check commands. For a more complete description
of these commands, refer to the
TSP command reference
(on page 7-1). For connection information,
refer to
Contact check connections
(on page 2-54).
Basic contact check commands
Command*
Description
flag = smu
X
.contact.check()
Determine if contact resistance is lower than threshold.
rhi, rlo = smu
X
.contact.r()
Measure the aggregate contact resistance.
smu
X
.contact.speed = speed_opt
Set
speed_opt
to one of the following:
0
or
smu
X
.CONTACT_FAST
1
or
smu
X
.CONTACT_MEDIUM
2
or
smu
X
.CONTACT_SLOW
smu
X
.contact.threshold = rvalue
Set resistance threshold for the contact check function.
*
smu
X
: For Models 2601B, 2611B, and 2635B, this value is
smua
(SMU Channel A); for Models 2602B, 2604B,
2612B, 2614B, 2634B, and 2636B, this value can be
smua
(for SMU Channel A) or
smub
(for SMU Channel B).
Contact check programming example
The following programming example illustrates the setup and command sequence for a typical
contact measurement. These commands set the contact check speed to fast and the threshold to
100
Ω
. Then, a contact check measurement against the threshold is made. If it fails, a more accurate
contact check measurement is made, and the test is aborted. Otherwise, the output is turned on, and
the test continues.
Содержание System SourceMeter 2601B
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