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Printed Circuit Board Assembly & PCB Design Forum

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design rule checks

Views: 1306

dougs

#45753

design rule checks | 29 November, 2006

Hi,

Just wondering what, if any, design rule checks each of you do prior to running new products. Comments from contract manufacturers particularly welcome.

regards

Dougs

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#45759

design rule checks | 29 November, 2006

We have a 70 page check we use. Just need to verify the board layout can be processed thru all required processes.

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#45772

design rule checks | 29 November, 2006

Chunks, After how many pages of non-conformance does the boss tell you that you really don't have to make it?

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aj

#45804

design rule checks | 30 November, 2006

Hi,

As chunks said , 1. make sure the board can run thru the process this might mean adding v-score or tabs for support. Each of your machines will have a min & max width. 2.We also check for proximity of components and fiducials to the edge of board usually >5mm. 3.Check that there are fiducials.

The above checks are purely for Processing the board thru the machines. There are lots of other checks for stencil design etc.

aj...

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#45812

design rule checks | 30 November, 2006

It depends. If it's a current desing that can't be changed, we go outside the box on any issue to see if we can build it. Then it all comes down to time versus dollars. If it's a new product we offer suggestions to the customer and try to bang out a solution that again is cost effective.

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