Questions tagged [fiducial]
5 questions
8
votes
4 answers
Fiducial placement
I've read that fiducial should be placed on the corners of the PCB.
And that no more 3 should be placed. Below are some questions I can't seem to find online.
1) Would it be a problem if there are some component farther away from fiducials, and…
MrBit
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What is etched half fiducial in PCB stencil ? How to use it?
On pcb manufacturer website, it is possible to opt for "etched half fiducial".
Here is how it is explained :
Fiducial Mark is an alignment mark for surface mount assembly
machines.In General,machine assembly must have Fiducial marks.Fiducial
marks…
doom
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PCB Single Local Fiducial
I have a question regarding local fiducials so as to achieve proper alignment of the board, during the soldering of a 0.4mm pitch chip. As I have seen the best practice for local fiducials is to place 2 of them, one on the upper right corner of the…
user3302780
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Local fiducial placement
I'm working on a prototype that has a few fine pitch (0.5mm) components. I'm thinking about adding local fiducial marks for these components as an afterthought. My idea was to place them close to the components where there is space for them.…
Lars Hankeln
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Position of global fiducials
I have two question for placement of global fiducials on my board:
In the board below you see two fiducials and a component (SMD connector). I would like to place the connector on the very edge of the board but it would interfere with the…
F. Heisenberg
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