Do you know the metal dome array structure? If you are not very clear, please see here to know more:
1. Single-layer: It’s just one Mylar with snap domes.
2. Double-layer: Top layer is Mylay, 0.025mm thickness; below with Spacer with snap domes(spacer layer), 0.05mm or 0.075mm thickness;
3. third or more -layer: such as our EMI dome array, LGF dome array, there is a extra layer with EMI or LGF one the top layer.
If you need more information, please contact us, we are glad to serve you.