Keysight B1505A Configuration and Connection Guide 5-45
Connection Guide for Wafer Prober and Your Own Test Fixture
To Connect Gate Charge Adapter
To Connect N1275A
The N1275A is used to enable on-wafer gate charge measurements with the UHCU (max.
500 A) and the B1513B/C HVSMU (max. 3 kV). You need to switch signal paths of IV
measurement and gate charge measurement manually. And also, you need manual
switching between high voltage and high current gate charge measurements. The adapter
output can be extended to your probe station by using the N1254A-524 prober system
cable. (Note that the B1513A cannot be used for the gate charge measurement.)
You can also mount current control device or load resistor for the gate charge measurement
on the top of this adapter.
The N1275A should be installed in the shielding box with your DUT interface. Connection
example is shown in Figure 5-23. For the color-codes of cables and connectors in this
figure, see Figure 7-1 on page 7-2.
Table 5-36 To Connect N1275A Input
Table 5-37 To Connect N1275A Output
N1254A terminals Required cables Input terminals
High Force N1275-61701 Ultra high current banana cable, 30 cm
(furnished in the N1275A)
High
Force
From
N1254A
Low Sense B1512-61741 BNC cable, 30 cm (furnished in the
N1275A)
Low
Sense
From
N1254A
B1505A terminals Required cables Input terminals
MCSMU Force 16494A Triaxial cable, 1.5 m, 1 ea. Current
Control
MCSMU
Force
Sense 16494A Triaxial cable, 1.5 m, 1 ea. Sense
Output terminals
Required cables/Description Connect to
High Force To
DUT
Ultra high current cable with banana(plug). N1254A-523
can be used.
DUT high terminal
(ex: drain)
Low Sense To
DUT
Coaxial cable with BNC(m) connector. N1254A-503 can
be used.
DUT low terminal
(ex: source)
To DUT
To DUT
From
N1254A Op
t
524
From
N1254A Op
t524
Signal
Circuit
Common
Low Sense
±10 V Max
High Force
±60 V
Max
SenseForce
From B1505A
±30
V
Max
Current Control
MCSMU
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