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# MCH PCB Design
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Dear Rabbits, I've uploaded the MCH PCB1 (base board) design for review.
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PCB is done using Class-6 six layer process, no blind/buried/micro vias.
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Min feature = 5 mil, min annular ring = 5 mil, min spacing = 4 mil
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(under BGA), min hole = 8 mil.
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PCB is done using most recent version of schematics (after many
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bugfixes), which can be found
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[here]([link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit_board/MCH_MAIN/MCH_MAIN_schematics.pdf)) .
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Don't forget to read the
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[Changelog]([link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit_board/CHANGELOG.txt).)
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Project is available both in Altium
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([link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit\_board/MCH\_MAIN/) ) Winter'09 format and in form
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of PDF files. I've produced various styled PDFs for your convenience:
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\* Altium SmartPDF output(
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[link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit\_board/MCH\_MAIN/MCH\_MAIN\_smartpdf.pdf)) - with
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netlist/component info, some visual glitches may appear due to bugs in
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AD
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\* Color(
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[link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit\_board/MCH\_MAIN/MCH\_MAIN\_pcb\_color.pdf)) and
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monochrome(
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[link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit\_board/MCH\_MAIN/MCH\_MAIN\_pcb\_mono.pdf) )
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separate layer printouts
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\* Composite(
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[link](https://www.ohwr.org/project/white-rabbit/blob/master/trunk/circuit\_board/MCH\_MAIN/MCH\_MAIN\_pcb\_composite.pdf) )
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printout
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I'm going to send this stuff for fabrication at Friday afternoon, so if
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you have any comments please post them quickly or at least tell me that
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you are unable to review the PCB.
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PS. Component clearance warnings generated by DRC have been checked
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manually, so in fact there are no colliding components.
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\-- TomaszWlostowski - 31 Mar 2009
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