What is this button-like clickable metal, on a PCB, called?

When I receive prototype from supplier, I see a button-like clickable metal on it. Very interesting. What's that?

PCB Design
September 20, 2023

It’s called dome switch.

To use this switch you will need to:

Decide actuation force
Size of the switch
Select a switch — try a few different types before you pick one.
Implement contact footprint in PCB compatible with the dome switch.
Get the dome switch or it’s assembly (dome switch stuck to a plastic film. Lay it down on PCB after SMT process.)

#PCB Design

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

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