Sometimes we will encounter the metal dome array can’t assemble on pcb board firmly,why do have this phenomenon? Do the adhesive of the dome array is not strong? If not, we should take care of the below points:
1, If there is dust, grease, masonry stains on the PCB board? PCB board must be kept clean;
2, We should peel off the dome array by tooling, such as tweezers;
3, Last,we press it a while on board firmly.
Through the above steps, I think the problem can be solved, metal dome array should be very firmly attached to the top of the circuit board. If you also have the doubts, please contact us anytime.