Initially of all, the most noticeable issue that can appear to your mind is, “what are membrane switches?”

A Membrane layer switch is typically a touch sensitive device that is fabricated by series of procedures regarding cutting, printing plus laminating of thin film plastic-type material. Membrane layer Key technology provides a dependable front panel solution, especially inside the settings where repeated cleaning is an issue.

From Wikipedia

A membrane switch is an electrical switch for turning a circuit on and off. It differs from a mechanical switch, which is usually made of copper and plastic parts: a membrane switch is a circuit printed on PET or ITO. The ink used for screen printing is usually copper / silver / graphite filled and therefore conductive. Membrane switches are user-equipment interface utilities that allow for the communication of commands from users to electronic devices. Membrane switches can be thought of as one category of interface utilities alongside touch screens, plastic keyboards, toggle switches and many other kinds of control systems. Interface utilities can be as simple as tactile switches for controlling lighting, and they can be as complicated as membrane keyboards and switch panels for use with computers. read more

From Clicktouchamerica

Introduced on the market about thirty years ago, the membrane keypad initially encountered a few obstacles, caused in part by the limited lifespan of the materials that were used at the time. Furthermore, what really harmed the early development of this otherwise promising product was the disadvantage of its poor tactile response.

Even if the quality of membrane keypads offered by our competitors is, in general, distinctly superior to what was offered in the past, many users still miss the old-fashioned push-button keypad. The explanation is simple: our competitors’ standard membrane keypads still fail to provide complete satisfaction due to poor tactile effects! read more