The T3Ster® Measurement Control & Evaluation Tool
is a mandatory component of any T3Ster® configuration. The program runs under any 32-bit Windows® operating system. It requires a PC having substantial free disk
space and a processor with a clock rate higher than 400 MHz.
Using a 17" monitor with SVGA/XVGA resolution allows
all sub-windows of the program to be displayed simultaneously
in a reasonable size.
The new USB interface option of the T3Ster® Main System Unit
allows using even a notebook computer for measurement control.
The measurement control software handles all possible
computer interface options of the T3Ster® Main System Unit. All equipment
parameter settings such as voltage ranges, current levels, heating
on/off state are controlled from appropriate control panels of the
software. The proper connection of the DUT to the Main System Unit
is supported by graphical help.
After having set the parameters such as configuration, measurement
channel attributes or powering, the actual measurement is started
in the Measurement window.
The measurement of the thermal transient takes place in real-time,
"on-the-fly". During measurement the actual thermal
transient being captured is shown in a control a window. Data
acquisition takes place very densely: about 200-300 samples are
collected in an octave of time.
Besides the measurement control results evaluation (based
on the NID method) is also provided.
Evaluation of the results takes place within a couple of seconds.
EVALUATION
RESULTS INCLUDE
Time-constant spectrum
Pulse thermal resistance curves
Complex loci of the measured zth
Cumulative structure function
Differential structure function
All
results can be viewed in form of function
plots that can be printed or copied into
other Windows® applications.
Structure functions are ideal means of non-destructive structural
analysis of the junction-to-ambient heat-flow path. Using structure
functions one can look into the packages or systems.
A built in materials browser can be used to facilitate
the identification of geometrical data (cross-sectional area
of the heat flow-path) from the structure function.
