Membrane switches, also called membrane keypad, are built from thin polyester film
and pressure sensitive adhesive (PSA). Printed Circuit Boards
(PCBs) can also be used as the base for a switch. Membrane switches
can be tactile or non-tactile, depending on the design. Tactile
switches provide a physical “click” when the user pushes it.
Non-tactile switches have longer lives, but lack physical feedback
to the user. Rubber keypads can be added to the top of the membrane
switch as well.
Membrane switches are used in many different applications in
industrial and commercial fields, like medical, toys, gaming,
aviation, boating, banking, test equipment, appliances, computers
and printers and public information panels.
Membrane switches have many advantages over other switches. They
are thin and compact, have a low cost, are versatile and durable,
user friendly and are moisture and dirt resistant. Additionally,
they come in many visually-pleasing styles and colors suitable for