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Assembly Layer?

ddra90n

Can someone please explain what the assembly layer is? What is it used for? How is it different from silkscreen? Does it show on the actual board?

 Thanks so much.

  • oldmouldy

    Assembly layers hold the assembly data, usually just for Top and Bottom, this is often used to output placement in graphical form for test engineers, assembly details for PCB Fabrication and Assembly and the like. Silkscreen data migt be similar but specifically aimed at making a screen mask to apply the silkscreen details to the fabricated board. The would not normally be part of a finished board, more likel to be related to documentation for it.

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