The pillow emboss allows the membrane switch to be a thinner construction when tactile feedback is required. The pillow will rest over a metal or polyester dome and provide positive tactile feedback.
The rim emboss is utilized on membrane switches(with or without tactile feedback). This design allow the user to locate the key easier.
The dual emboss is used in special designs, such as In Mold Decorating (IMD). This feature allows the overlay to have an emboss as well as a deboss in the same key.
The window emboss is utilized on membrane designs with LED’s incorporated into the package. This methodology is an effective way to design a thinner switch, versus a flat membrane with LED’s and provides a wider viewing angle than a typical flat overlay window.
Note: Emboss height should not be more than 1.5 times than material thickness, however, the LED/Brail design is an exception.