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Membrane Keypads

Membrane Keypads utilise Polycarbonate or Polyester films with a print process over the base material to produce a graphic overlay as per our "Basic Label" products. The film is overlayed over a series of additional film layers and metallic membranes to produce a integrated switch and label assembly. Multicolour and now full colour print processing is available, working from customer supplied artwork or utilising our in house design service.

A metallic dome membrane is used to provide a positive tactile feel to the switch. While most switches utilise this technology, the membrane switch can be manufactured without the dome and hence without positive tactile feedback.

Embossing is offered to enhance the graphic representation and also, if positioned over the switch location, to give the switch a three dimensional "look and feel".

Assemblies can be manufactured with only one switch, or as many as can be physically located and electrically routed on the given mechanical footprint of the assembly.

Most assemblies are designed with a tail extending out from the switch assembly to provide the electrical connections to the internal switches. The tail can utilise edge connector technology and be manufactured with a fitted moulded sprung pin type connection. The tail removes the requirement for any additional cables as the the tail technology is designed to mate with PCB mounted connectors, in most cases on the system driver board.

The exit point of the tail is determined by the customer's mechanical requirements and specifications, to ensure the tail mechanically conforms to the intended application.

Assemblies can be manufactured with clear windows for fitting over LCD displays or other graphic displays. Labels can be supplied with a Gloss or velvet finish.

A number of differently rated domed membranes are available, providing different degrees of force to activate the switch and different degrees of movement.

Specifications

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