Capter 3
Function Setting and Basic Operation
3-106
Curve Tracer CS-3000 Series Instruction Manual
About function of semiconductor parameter search option CS-800
This section describes the outline and application of this option. For detailed settings, see Section
3.11.7.1 to Section 3.11.7.3.
This option includes Vth /h FE SETUP submenu, LIMIT SWEEP submenu, and CONSTANT
VOLTAGE/ CURRENT submenu.
Since characteristics measurement of a semiconductor device includes a lot of parameters and
conditions, the relationship with the 3rd or later parameters can be obtained by measuring the
characteristics curve indicating the relationship between two parameters and measuring the
multiple characteristics curves. The relationship with the 3rd or later parameters can be measured
more detailedly and conveniently with use of the search function being set in
Vth /h FE SETUP submenu (in this option), as shown in the example below.
This option, when carrying out SWEEP and search, is oriented to the target point (
+
in the diagram)
of I
C
−
V
CE
as shown in the diagram below. It sets not only the current value and the voltage value
of the target point but also SWEEP range of the step generator, SWEEP range of the collector
supply (within dotted lines in the diagram), the permissible range (within inner frame in the diagram),
the start point of SWEEP (
●
in the diagram), and the maximum number of SWEEP times (1 time: 1
SWEEP of step generator
+
1 SWEEP of collector supply).
The measurement result of VERTICAL, HORIZONTAL, and STEP GENERATOR and calculation
result (
β
) are displayed under the submenu (numeric value).
Voltage between collector/emitter (V)
START
COLLECTOR SETUP
:
%
STEP GENERATOR SETUP :
A
Search point after SWEEP
Ic
: A
Vce
: V
RESOLUTION
(permissible range) :
%
C
ol
lec
tor
c
ur
rent
(A
)
Ic
Vce
VERTICAL TARGET
: A
HORIZONTAL TARGET : V
COLLECTOR SETUP
:
〜
%
STEP GENERATOR SETUP :
〜
A
Summary of Contents for CS-3000 Series
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