We manufacture Membrane switches/keypads for data input, for example for data signals, specific to customers’ needs and applications. They compose several single functional layers, have extensive and flexible design possibilities and are therefore found in every type of electrical equipment. We offer a wide range with or without tactile feedback and diverse options on windows, screening and lighting. For Membrane Switches, Overlays and Decor Foils we also offer Digital as well as Silk Screen Printing. Digital Printing is preferred for colour gradients as Silk Screening has a restricting effect on gradients. Digital Printing is well-suited for prototype, one-off and small series productions as no screen set-ups are necessary. This reduces costs and delivery time is one week less. Hybrid Printing, a combination of Digital and Silk Screen Printing is also available.

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Graphic Overlay

Graphic Overlays with Integrated Contacts  N&H Technology offers cost-saving switch foils that can replace Membrane Switches and Rubber keypads and other similar constructions where the upper side of the PCB is accessible. Graphic Overlays have unlimited design possibilities. Conductive material (carbon or silver) is found on the underside of the graphic overlay, positioned under the keycaps ensuring excellent haptics. Pressing activates the switch function.

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Membrane Switches with Integrated Rotary Encoders

Relatively new in our programme are Rotary Encoders integrated in Membrane Switches. Rotary Encoders with 2-Bit-Gray-Code and 2-Bit-Code and also analogue Potentiometers can be built into Membrane Switches. Rotary Encoders have a lifespan of approx. 500.000 rotations whilst an analogue Potentiometer only obtains an average of 100.000. Our Chinese production plants produce integrated encoders using the patented process developed by the company Duraswitch. There is no wiring and soldering as with separate encoders and therefore it provides a substantial save on assembly time and costs.

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Membrane Switches according to IS0 13485

Various selective measures undertaken by N&H Technology have optimized the production of membrane switches at our suppliers in China in order to conform with the Quality Management Standards IS0 13485 and thus to meet all requirements of our customers in Europe. Our customers have responded positively to this.