Xiamen Better Silicone Rubber Co., Ltd

Metal Dome Membrane Switch Keyboard/Keypad

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Metal Dome also known as stainless stell domes, tactile metal domes, which is made of stainless steel. Metal dome is an important part of the switch. It takes advantage of the conductivity of metal dome.
Metal dome on the silicone membrane keypad is located on the conductive part of the PCB (mostly above the gold finger on the circuit board). When pressed, the center point of the metal dome is concave and contacts the line on the PCB to form a loop. When the current pass, the membrane keypad work normally.

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Metal Dome  also known as Stainless Steel Domes, Tactile Metal Domes, which is made of stainless steel. Metal dome is an important part of the switch. It takes advantage of the conductivity of metal dome.

Metal dome on the silicone membrane keypad is located on the conductive part of the PCB (mostly above the gold finger on the circuit board). When pressed, the center point of the metal dome is concave and contacts the line on the PCB to form a loop. When the current pass, the membrane keypad work normally.

metal dome array

how metal dome work

Metal Dome In Silicone Rubber Keypad

Some silicone keypad designs use separate components, such as metal domes and tact switches, to provide the actuation feel and electrical function for the rubber key.

Metal Dome Arrays consist of single metal domes on a pressure sensitive adhesive PET sheet (array), and each single metal dome is in the center of a kiss-cut adhesive square or circle, with release liner backing which can be easily peeled off. 

Metal domes array offer a different actuation feel from conventional silicone rubber keypad with conductive carbon pills or conductive printing.

The stroke(travel) of metal dome is typically lower (0.4 - 0.8mm) . Additionally the life of metal domes is usually longer (1000,000+ ) than common silicone rubber keypad. 

metal dome silicone keypad


Metal Dome Silicone Rubber Keypad Advantage

The main advantage of utilizing a metal dome array is easy of assembly: production time is greatly reduced by placing all of the domes on the PCB simultaneously. Metal Dome Array can stick on the silicone rubber membrane keypad directly by adhesive tape according to design.

Metal dome array is mainly in mobile phones, internet telephony, various remote controls, MP3/MP4, radio, digital cameras, learning machines, game control keyboards, microwave ovens, car dashboards, telescopes, toys, etc. It has a better feel and a longer service life than previous membrane switch.


Metal Dome Application In Membrane Switch

metal dome membrane switch

metal dome switch keypad

Silicone Rubber Keypad

metal dome membrane keypad

Metal Dome In Remote Control Rubber Keypad

metal dome remote keypad


Metal Dome have many different shapes and actuation forces available in order to fit your specific application.Full product range with various choices in shapes from circlecrosstriangle to oblong. If you need special shape, we can customize based on your design drawing for you.

custom metal dome


Better Silicone Keypad

Xiamen Better Silicone Rubber Co., Ltd is specialized in designing and manufacturing all kinds and configurations of Silicone Rubber Keypads for a wide range of applications....  
 

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