1mm BGA routing

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1mm BGA routing

Postby MSchaeffer » Mon May 14, 2012 9:30 am

I'm working on a 6 layer board with a 1mm pitch BGA in PCB123. All of my vias under the BGA are in violation of the DRC and my surface traces are as well. Will this board be produceable by Sunstone despite the violation to the DRC? If so, is there any way to change the DRC so to a more accurate level so i can avoid all of the errors while still maintaining produceability? If not, any tips? Thanks
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Re:1mm BGA routing

Postby Eric Haugen » Mon May 14, 2012 9:30 am

Hello, If your design does not meet
Standard PCB Manufacturing Capabilities
You will need to use our Custom Quote service: https://quoting.sunstone.com/QuoteCustom.aspx

Please note that orders through PCB123 have a minimum trace and space of .007"
Eric Haugen
Sunstone Circuits
13626 S. Freeman Road
Mulino, OR 97042
Phone: 800-228-8198
Fax: 503-829-6657
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Re:1mm BGA routing

Postby Sal Hernandez » Mon May 14, 2012 9:30 am

You should be able to route a 1 mm bga with PCB123. You will need to allow your via to share some space with the bga pad as shown in the image below.

Use the smallest hole size .014" with the smallest via pad size .025" (only available when a multi-layer board is selected) and you should be able to route using7 miltrace with a 6 mil space. You can order this directly through PCB123. This will only work if your bga pads are about .5 mm diameter. If you would like your file reviewed you can either attach it to this thread or send your file to support@sunstone.com.
Regards,

Sal Hernandez
Software Support Engineer I
Sunstone Circuits
13626 S. Freeman Road
Mulino, OR 97042
Phone: 503-829-9108 x226
Fax: 503-829-5482
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