Touch Switch

Shin-Etsu Touch Switch is a PET-film or PC-film with patterning of a transparent conductive polymer called Seplegyda®, providing capacitive touch sensor elements.

Shin-Etsu Touch Switch is a PET-film or PC-film with patterning of a transparent conductive polymer called Seplegyda®, providing capacitive touch sensor elements. Printed wiring on the film is connecting the touch sensor elements to the driving electronics. The transparent polymer Seplegyda® is proving the sensor a unique flexibility that offers designers the freedom to position capacitive sensor functionality on curved surfaces.

The connection to the driver electronics board is generally realized by a tail with a ZIF-connection.

The design of dedicated sensing patterns and wiring is up to the application and developed by a triangle cooperation between customer, the driver circuit supplier and Shin-Etsu Polymer.

Touch switch properties

Parameter UnitValue
Surface resistance sensor surface Seplegyda® Ω/sq 500 ~ 1000
Seplegyda® coating thickness µm 0.3 ~ 5.0
Surface resistance silver wiring and/or patterning Ω/sq < 0.5
Surface resistance carbon wiring (ground and shielding) Ω/sq < 100

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