Agilent Technologies 4339B - Page 99

4339B
Front
P
anel
Parameter Description Available
Value
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 Eective
area coecient
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
0
D
1
)
2

2
4
t
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
Denes
the
electrode's
parameters
when
using
your
own
test
xture
.
P
arameter
Description A
vailable
V
alue
Area Eective
area
0
cm
2

AREA

9999.9
cm
2
(5-digit
number
,
default
is
19.635 cm)
P
erimeter
Eective
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
=
PE
R
I
M
E
T
E
R
GAP
2
R
s
[]

v
=
ARE A
t
2
R
v
10
[
1 cm ]
Where,
R
s
: Surface resistance
R
v
: Volume resistance
t : DUT's thickness (entered as
THICKNESS )
Note
The eective area coecient B can be set only with front panel keys.Itis
impossible to enter the B value using GPIB commands.
Function Reference 3-9