Keysight Technologies B1505A User Manual page 162

Figure 3-23
Figure 3-24
Table 3-18
Accessories
Transient Response
HVSMU current behavior
Transition time (OFF to ON) = minimum 20 s
ON
Current limit period =
OFF
I-V Characteristics of N1267A
The N1267A has the I-V characteristics due to the internal semiconductor switches
shown in Figure 3-21. When the device ON state characteristics is monitored, the
voltage actually applied to the DUT will be the HCSMU setting voltage minus the
voltage drop shown below. The voltage drop value varies by the current.
HCSMU Output Current vs Voltage Drop
5.0
3.0
1.0
-1.0
-3.0
-5.0
Voltage Drop
Transistor measurement
Voltage drop
20  I |I
0 0
0.6 + 0.27  I 30 mA < |I
0
1.3 + 0.043  I 3 A < |I
0
a. I : HCSMU output current (A)
0
3-66
Current limit change
maximum 4 mA (1500 V to 3000 V)
maximum 8 mA (up to 1500V)
HVSMU output voltage 2.5 s (at 4 mA compliance)
HVSMU output voltage 5 s (at 8 mA compliance)
Voltage Drop vs Idut
I (A)
0
a
Current I Voltage drop
0
|  30 mA 58  I
|  3 A 0.6 + 0.24  I
0
|  20 A 1.1 + 0.062  I
0
Keysight B1505A User's Guide, Edition 12
Time
Vdrop: Voltage drop
I : HCSMU output current
0
Diode measurement
Current I
|I |  10 mA
0 0
10 mA < |I
0
3 A < |I |  20 A
0 0
a
0
|  3 A
0