Wir fertigen Eingabesysteme für Kunden aus der Mess-Steuer-Regeltechnik, der Medizinelektronik, aus dem Automotive-Bereich sowie aus der Telekommunikation und der Drucktechnik. Aufgrund unseres Fertigungs-Know-hows sind wir der optimale Partner für Leiterplatten Systemlösungen von Eingabeeinheit und Leiterplatte.
Touchscreens, i.e. touch-sensitive screens, offer numerous possibilities for convenient operation of devices. However, there is no touch technology that can be used universally for every application. Each technology has advantages and disadvantages, so it is important to know and understand the key technologies in order to implement an optimal solution.
Capacitive keyboards are characterized by an extremely robust and visually appealing design. In contrast to resistive touchscreens, a capacitive touch also works without pressure. You only need to touch it to interact. The surface can be made of glass or plastic. Individual buttons, but also sliders and dials are available for operation. Keyboards with a glass surface can be produced in many different versions.
Membrane keypads consist of a film composite made up of at least four film layers. Polyester films with thicknesses of 0.10 mm to 0.25 mm are used as decorative films. The individual layers are bonded and spaced apart using polyester substrates coated on both sides with acrylate adhesives in thicknesses between 0.05 mm and 0.30 mm. The circuitry of the membrane keypad is either applied to polyester films by screen printing using polymer pastes with a high silver content, or realized as a printed circuit board.
With the foil circuit, it is possible to overprint non-conductive areas of the circuits with a UV-curing insulating varnish. In this way, bridges can also be realized (comparable to vias on printed circuit boards). The adhesive film is applied as the final layer. This can be individually adapted to the application and the housing material.
Thanks to our many years of experience in the field of membrane keypads and our manufacturing expertise in PCBs, we are the ideal partner for the system integration of membrane keypads and PCBs. We supply membrane keypads that are mounted directly on PCBs - with assembled components on the back.
The PCB as a circuit level and as a carrier plate in one can thus be combined to form an application-specific input system. The rest of the keyboard design corresponds to the standard designs described in the technology guide Input systems.
You have the choice: PCBs can only have buttons or can also be equipped with LEDs for lighting and displays. It is also possible to integrate the entire control system of the device. We can realize all combinations of base plates, slide-in strips and display designs for you.
Silicone keyboards are still important in industrial automation, medical technology and especially in the consumer goods industry. They are a cost-effective alternative to conventional membrane keyboards and offer significant advantages over mechanical keyboards.
Silicone keypads are characterized by their high breaking strength and durability. Various contacting options allow switching pulses to be executed directly on a circuit board.
The comparatively low initial costs for tools allow for cost-effective, customized design variants - coupled with the high value of the products. In addition, an individually designed switching membrane allows the optimum feel to be achieved for every application. The design options are diverse and can be combined with the techniques familiar from the manufacture of membrane keypads - such as snap domes under keypads or printed circuit boards
Your advantages:
Overall, silicone keyboards offer a cost-effective, robust and versatile solution for numerous industries and applications. They combine a long service life with flexible design options that can be adapted to individual requirements. Thanks to their liquid-tight design and the possibility of using different contact materials, they are an excellent choice in many areas and offer a valuable alternative to other keyboard types.
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