How can I know how many layers a PCB has

How can I know how many layers a PCB has?

2016/4/14 16:50:24

layers of pcb multilayer pcb

How can I know how many layers of the PCB I have?

Jose Valdiande

2016/12/30 17:06:53

Some PCB will have a "stair-step"; each layer labeled with a copper number and cutouts in the other layer to be able to see it.

Edu

2016/12/30 9:01:55

Cut the board in half and inspect the copper, the layers of PCB is the same as the layers of copper.

ned73

2016/11/9 15:10:47

Using a bright light, it's easy to see if a board has inner layers even if it doesn't have blind vias.IF the board have inner layers,it will be a multilayer PCB,otherwise it is not. But for this way, we could not know the exact layers of the board.

Piero

2016/8/23 15:51:41

I was burnt by layer numbering today,my layer number "1" is mistaken as a marker for pin 1 on some nearby connector.

fravillama

2016/4/16 16:50:24

Quite useful and impressive info.Thanks for marvelous posting.

How can I know how many layers a PCB has?

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