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. 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.

Design example and application
     
 Touch Switch with Seplegyda® transparent
 sensor elements.
 Connection tail with ZIF-end
 
 Touch Switch in automotive instrument panel

Basic properties
   Unit  
 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
 Bendability    Excellent

 

Note:
Every item or numerical value indicated herein is measured by Shin-Etsu and out of guarantee.
Data is for reference only. More information can be found in design guides.
The quality of the assembled capacitive touch sensors is out of guarantee.
Please make sure to review the purpose and conditions of use and practice your own tests.