INFICON Maxtek PM-700 Plating Monitor - Manual (Page 33)

PM-700 SERIES PLATING MONITOR
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4.4.3.2.3 Deplate mode
In the Probe Deplate mode, enough negative electrode current is supplied by the
monitor to create the desired deplating rate.
4.4.3.2.4 Preplate mode
In the Probe Preplate mode, enough positive electrode current is supplied by the
monitor to create the desired preplating rate.
4.4.3.2.5 Plate mode
In the Probe Plate mode, the electrode current is zero for electroless processes and
positive for electrolytic processes. In electrolytic processes the electrode current
is established by the monitor at the value necessary to achieve the programmed
current density.
The mode of the probe can be determined by pressing the Probe status button.
4.4.4 Main Display modes
The two four digit main displays are factory set to display plating rate and plating
thickness, however, three alternate display formats can be selected by means of
the Main Display parameter. All four possible Main Display modes are described
below.
4.4.4.1 Rate and Thickness
This is the normal or default display mode as set at the factory. The measurement
units will normally be displayed to the right of the digits unless the display units
have been changed from those that were preset at the factory. If the Thickness
Units parameter has been used to select and alternate set of units, then both units
display areas will be dark. If the Time Units parameter has been modified, but the
Thickness units are unchanged, then only the Rate display units will be dark.
4.4.4.2 Rate and Efficiency
In the Rate and Efficiency main display mode, the normal rate display is provided
in the left hand display area while the right hand display is used to display the
cathode efficiency in percent where 100% represents the theoretical maximum for
the bath selected. Since cathode efficiency is only meaningful for electrolytic
processes, a value of 00.00 is displayed if the monitor is in the Electroless plating
mode.
4.4.4.3 Efficiency and Thickness
In this display mode, the left-hand display area is used to display the cathode
efficiency in percent where 100% represents the theoretical maximum of the bath
selected. Since cathode efficiency is only meaningful for electrolytic plating
processes, a value of 00.0 is displayed if the monitor is in the Electroless plating
mode. The right hand display area provides the normal plating thickness display.