Why the Key of Metal Dome Is Invalid?

1. The metal dome and PCB have poor contact when there are dirty things on the dimple of metal dome.

Solution: replacing a new metal dome; wiping the metal dome; using the metal dome that has lots of dimples in the center

2. The goldfinger on PCB (printed circuit board)/FPC (flexible printed circuit) is oxidized then affect the contact between the board and the metal dome.

Solution: replacing a new PCB or FPC

3. The shape of the metal domeis not matched with the shape of tabs on the PCB/FPC.

Solution: replacing the corresponding metal dome according to the shape of tabs on the PCB/FPC.

four leg metal dome

4. The gap between metal dome and the key is too large.

Solution: changing another metal dome with suitable stroke according to the parameter of design.

5. The gap between the keys is too small

Solution: increasing the height of metal dome or shorten the gap between the key and metal dome.

Since established in 2006, Best Technology is always dedicated to provide the most suitable products for clients, to be customer’s best partner of metal dome and dome array.