On top of the Mayler which carries metal dome contacts, silver paste or silver carbon paste is printed as ESD (Electrostatic Discharge Control). This helps reduce electrostatic which might be harmful to other parts inside of mobile phones. Electrostatic is gathered _disibledevent=">

1) EMI Single layer metal dome Sheet
-- EMI is printed on top of single-layer metal dome arrays (dome arrays)

2) EMI Double layer metal dome sheet
-- EMI is printed _disibledevent=">

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