D00219 Revision E
– 2019-07-19 - Page 13
Live test status display:
NOTE:
The following Curve Trace and PinCheck displays only apply if Curve Tracing is active.
•
To the right of the Test Status area is the Curve Trace
chart. If curve tracing is selected, a plot will appear
here of current vs. voltage for the pin pair presently
addressed. A typical diode characteristic is shown at
the right.
•
An index number which we call PinCheck is
computed for each curve trace. PinCheck is a
sensitive indicator of any change in the waveform. If
the PinCheck number remains nearly constant
during the discharges to a pin, then chances are no
damage occurred.
•
The PinCheck Profile chart shown at right shows
this, plotting successive PinCheck numbers across
the graph. If this plot is a straight line as shown in
the first graph, no ESD damage is indicated. A
change in the PinCheck numbers as shown in the
second graph, indicates something changed in the
circuit.
No damage
ESD event
