Interlink Electronics VersaPad PS2 - Manual (Page 8)

www.interlinkelectronics.com
6
PS2 VersaPad®
Integration Guide
Figure 4: Top View of VersaPad sensor showing hidden spacer geometry. Dimensions are in mm.
5.1 Mounting and Capture Guidelines
Achieving an optimal mounting design requires that consideration be given to the following
guidelines:
5.1.1 Capture
Design of the enclosure used to capture the VersaPad module can follow either a
top or bottom installation method. Pressure sensitive gaskets or adhesives may be
used to support and protect the VersaPad. Tolerances of gaskets, bezels, etc.
should be chosen to avoid contact with the sensor active area under all conditions.
5.1.2 Protection of the Spacer edge
It is possible that long-term wear can emboss the touchpad sensor near the spacer
edge. To avoid this, the top case or an additional bezel should be used to overhang
the spacer. A small vertical gap is necessary to avoid touching the sensor. Size
and position tolerance should be chosen to overlap the spacer under all conditions.
See figure 5.
5.1.3 Contamination
Moisture and debris contamination can jeopardize the performance of the
VersaPad. Hence, in instances where these factors are considerable, the designer
may choose a gasket strategy to avoid ingress.