Sentelic STL3886 series using capacitive sensing technology, robust & proven solution for millions units selling into Finger-Sensing Pad , STL3886 control IC for module device is a pointing device used in electronic devices when the cursor controls are in demands; such as in notebook computers, in touch panel and etc... To move the cursor, the user can just lightly slide on the surface of the smooth sense area.

The Finger-Sensing Pad is composed of three parts:
Mylar sheet: applied on the module surface to give smooth feedback to the working finger.
PCB Layer: used to hold the Mylar sheet and the electronic components on the backside.
Module Backside: where the controller IC, system connector, and resistors are mounted.

The core technology of the pad module is a captive based controller IC. When a finger moves against the pad surface, the IC will begin to monitor the finger activities and send that information to the host system to the map screen cursor movements.

The pad module currently connects with system host via PS/2® interface and requires only the standard Windows® mouse driver to operate in a PC based system. The device also comes with an optional vendor's driver to support the additional features for the system users, such as on-pad virtual zones for vertical and horizontal scrolling.

Through the advanced DSP algorithm, the Finger-Sensing Pad has a high reliability; as it has tested to prove to endure extensive hours of usage and sever working environment in extreme cold and hot temperatures.