The metal dome as a contact switch is used very widely, we here to know metal dome arrays are used in fingerprint attendance machine today.
Fingerprint attendance machine is the fingerprint recognition attendance machine,the contact membrane keypad use our metal domes, then what type of the metal dome will used?In generally to use triangle metal dome, with higher force, such as 300-500 grams,the 5-8mm diameter.
Then make the metal dome with adhesive sheet(we call metal dome sheet or dome array), a piece of sheet with the total keys to paste, very convenient and simple. Then the material of transparent is very convenient to assemble.
We have customers are specialized in making fingerprint attendance machine, so the technology is more mature. If you have needs in this area, please feel free to contact us.