Electrode Not Located On Pcb; Table 12. Electrode Documentation; Figure 14. Electrode Not Located On Pcb Example - ST STM32F0 Series Application Note

5.6.2

Electrode not located on PCB

It is possible but it is not recommended, because when the electrode it isn't located on PCB, the sensitivity
decreases and additional extra parasitic capacitances are added.
Front panel
(plexiglass or
other suitable
material)
Controller

Table 12. Electrode documentation

Id
AN4312
AN5105 - Rev 1
Figure 14. Electrode not located on PCB example
Spring
Printed
electrode
PCB
gives a list of documents containing information about the electrode .
Table 12.
Title
Guidelines for designing touch sensing applications
with surface sensors
Spacer (cylinder
of hard foam or
other suitable
Printed
material)
electrode
(optional)
connection
PCB pad
Electrode documentation
Using electrodes separated from the PCB
AN5105
Layout and PCB
Flex PCB
ACF/ACP
Flex
connector
Chapters
page 16/52