Agilent 4145 Function Improvement
Agilent 4145
Processor is the Software designed to focus on
HP 4145 semiconductor parameter testing equipment running under PC the
environment of Windows XP. Its main task is to convert the screen of the
original 4145 semiconductor parameter testing equipment to Microsoft’s
Windows system with direct inputs of measurement condition under such a
platform. It controls 4145 semiconductor parameter testing equipment and
transfers the postmeasurement data back to 4145 Processer for further
management.
4145 Processor
also provides more
userdefined variables and
mathematical functions to effectively enhance and integrate its
functions. The platform of 4145 Processor was designed for the existing HP
4145 users to operate without any prerequisite trainings.
Suitable for:
The existing users of HP 4145 Semiconductor Parameter
Testing equipment from widely Industrial and academic organizations.
Operating System:
Windows XP
User Functions of the 4145 Processor:
Mathematical Functions

Symbol 
Mathematical Definition 
1 
+ 
Addition, e.g. 4+2=6 
2 
 
Subtraction, e.g. 42=2 
3 
* 
Multiplication, e.g. 4*2=8 
4 
/ 
Division, e.g. 4/2=2 
5 
^ 
Exponent, e.g. 5^3=125 
6 
( 
Left
bracket, during calculation, obey multiplication and division prior to
addition and subtraction with brackets being the top priority 
7 
) 
Right
bracket 
8 
ABS 
Absolute value, e.g. ABS(3)=3或ABS(V1) 
9 
AVG 
Average value, e.g. The measured parameter V1 has n series of numbers,
so AVG(V1)= 
10 
DELTA 
e.g.
The measured parameter V1 has n series of numbers, so DELTA(V1)
=V1(J+1)V1(J) 
11 
DIFF 
Differentiation, e.g. The measured parameters of independent variable V1
and dependent variable parameter I1 each has n series of number: so
DIFF
(I1，V1) =

12 
INTEG 
Integration, e.g. The measured parameters of independent variable V1 and
dependent variable parameter I1 each has n series of number: so
INTEG(I1，V1) =

13 
EXP 
Natural exponential, e.g. EXP(I1)=e^{n} 
14 
LGT 
Log
with base on 10, e.g. LGT(I1) 
15 
LOG 
Natural
Log, e.g. LOG(I1) 
16 
MAX 
Maximum number in a sequence. e.g. MAX(I1) 
17 
MIN 
Minimum number in a sequence. e.g. MIN (I1) 
18 
SQRT 
Square roots, e.g. SQRT(9),
SQRT(I1) 
19 
COND 
When
the result of first mathematical function < second mathematical function
equals to the third mathematical function
When
the result of the first mathematical function
≧
second mathematical function
equals to the forth mathematical function
e.g.
COND(I1V1,SQRT(I1)V1,V1,V2V3) 
20 
AT 
To
calculate the value of the second mathematical item of the first
mathematical sequence. If the value of the second mathematical item is
not an integer, then the output is the value of the second mathematical
item of the first mathematical sequence.
e.g.
AT(V1,5) means the 5^{th} value of the V1’s matrix parameter,
it’s the same as V1(5) 
