Agilent Technologies 4339B, Operation Manual

Page: 99 / 287

4339B Front P anel
P arameter Description A vailable V alue
D
1
Main electrode diameter 26 mm
1
50 mm
1
76 mm
1
D
2
Guard ring diameter 38 mm
1
70 mm
1
88 mm
1
B Eective area coecient 0 B 1
(0.0001 resolution)
1 These parameter's values are xed and cannot be changed.
Surface resistivity (
s
) and volume resistivity (
v
) are calculated using the
following equation:
s
=
(D
2
+ D
1
)
(D
2
0 D
1
)
2 R
s
[]
v
=
2 D
1
+
B (D
2
0D
1
)
2
2
4t
2
R
v
10
[ 1 cm]
Where ,
R
s
: Surface resistance (Measured value)
R
v
: V olume resistance (Measured value)
t : DUT's thickness (Entered as Thickness )
User Denes the electrode's parameters when using your own test xture .
P arameter Description A vailable V alue
Area Eective area 0 cm
2
AREA 9999.9 cm
2
(5-digit number , default is 19.635 cm)
P erimeter Eective perimeter 0 cm PERIMETER 999.99 cm
(5-digit number , default is 18.850 cm)
Gap Gap 0.001 cm GAP 99.99 cm
(4-digit number , default is 1 cm)
Surface resistivity (
s
) and volume resistivity (
v
) are calculated using the
following equation:
s
=
P E R I M E T E R
GAP
2 R
s
[]
v
=
AR E A
t
2
R
v
10
[ 1 cm]
Where ,
R
s
: Surface resistance
R
v
: V olume resistance
t : DUT's thickness (entered as THICKNESS )
Note
The eective area coecient B can be set only with front panel keys . It is
impossible to enter the B value using GPIB commands .
Function Reference 3-9