PCB Based Membrane Keypads

A glass epoxy PCB, a hard-backed PCB, and a thin polyester layer coated with conductive silver make up a PCB based keypad. These two layers are separated by a spacer that features air vents for flawless switch operation. These keyboards come in tactile and non-tactile varieties, and they can be embossed or not. These keyboards can be constructed with built-in LEDS and can have LEDs for the backlighting.

There are tactile, non-tactile, and capacitive switches for PCB based membrane keypad. Regarding construction, they are also available in single-sided, double-sided, or multilayered forms. These keypads offer a wide range of connectivity possibilities.

Memtron’s PCB-based membrane keypads and keyboards can be specially designed to meet various requirements and last for a long time. To protect the equipment from contamination, the switches have internal vents and are sealed. These PCB-based keypads offer qualities like endurance and robustness. During the keypad’s final assembly, a printed graphics overlay was put right on the board.

Layers of Constructing a PCB-based Membrane Switch Keypad

• Graphic Overlay
• Graphic Adhesive
• Dome retainer or ESD mesh
• Spacer Adhesive
• Metal Domes
• PCB – Gold platted or TIN platted
• Back Adhesive

PCB-Based Membrane Keypad Perks

• Overlay, adhesive, and material systems that are specific to an application
• Selective material finishes on a polyester graphic overlay
• Selective textures and finishes printed (clear window, anti-glare, secret til lit phosphorescent)
• Metal dome tactile response embossed tactile response (dome, rim, plateau, de-emboss, braille), or a combination
• Better possibilities for circuit track
• Equipment and fittings for machines
• Come with a mounted panel and significantly save weight and space
• IP certification helps electric equipment users conserve energy
• Electronics have PCB and foil that are hermetically sealed