Membrane keyboards directly from the manufacturer
Membrane keyboards and their advantages
Membrane keyboards are applied across a number of areas ranging from control units for domestic devices to highly sensitive medicine to extremely resilient controls for production lines and machines. Technical and creative demands of a foil keyboard are very high, and we are happy to offer you the best solutions.
Advantages
- customized design
- low installation height
- tactile feedback for key confirmation
- rugged and durable
- resistant to most chemicals
- resistant to dirt, dust and water
Membrane keypad structure options
A membrane keypad can be built according to the customer's requirements. It can contain not only snap domes, but also light diodes and slide-in pockets. Depending on the structure, it can have a height of approx. 0.9 to approx. 2.0 mm.
Front membrane
- resistant to most chemicals
- individually configurable
Retaining membrane
- fixes the installed metal snap domes
Spacer foil for switching level
- self-adhesive spacer
- positioning of the snap domes
Switching layer
- printed electronic circuit
- equipped with metal snap domes
Spacer foil for LED level
- self-adhesive spacer
- insulation of upper and lower switching foils
LED layer
- printed electronic circuit
- equipped with single and multicolour LEDs
Base adhesive
- lower adhesive layer for fixing the membrane keypad
Customized front membrane design
The front foil design can be configured specifically for the customer or CI-linked. It is exactly reproduced according to your input by means of screen printing or digital printing. Of course, printed viewing panels, transparent colours, fade-effects and night design can be implemented without problems.
Foil keyboard without snap dome
In the keyboard two conductor foils are incorporated with a spacer. The lower foil has conductor tracks equipped with a button. The upper foil is equipped with conductive contact points lying immediately above the button. If the foil with the contact point is pressed down, the circuit is closed.
Foil keyboard with snap dome
Membrane keyboards with snap domes enable better tactile responses. When the key is activated, the metal snap dome is pressed down and it completes the circuit with two conductor tracks. In order to achieve greater tactile properties, key panels can be stamped in the design foil. For this reason we offer snap domes with various printing strength and sizes.
Slide-in technology for customer or country-specific marking
Depending on customer or country-specific marking, special insertion pockets can be worked into the keyboard. With the help of printed strips a foil keyboard like this can be quickly and easily individualised.
Membrane keyboards with integrated LEDs
Super-thin LEDs, only 0.5 mm thick, are used to display the optical status. You have the option between one or multiple colours in your LED. For this purpose, an additional switching level with LEDs placed on it, is incorporated into the membrane keypad. In order to reduce the installation height, the switching surfaces for snap domes and LEDs can, under certain conditions, be accommodated on one switching foil.
Shielding against EMI and ESD
To prevent electro-magnetic interference (EMI) and electro-static discharge (ESD) the membrane keyboard can be equipped with shielding foils.
Reconstruction of damaged membrane keypads in short-run production
The failure of operating and input components can be caused by short-circuits, wear or similar problems. It is in such cases often impossible to simply repair the control panel. For this problem we have a simple solution. Thanks to our long experience, we are able to use your data or faulty design to produce an entire new membrane keypad complete with membrane switches
Connecting lug of a membrane keypad
Connection is made via a flexible foil cable with optional plug.
Together with you, we develop and produce solutions tailored to your area of application.
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