PCB rute

[lpcware]

Content originally posted in LPCWare by artembond on Fri Apr 11 02:31:35 MST 2014
Hello All.

I'm looking for any example for LPC43 BGA PCB. I'll find how may layers I need, what is minimal VIA size.

[lpcware]

Content originally posted in LPCWare by mc on Fri Apr 18 08:03:43 MST 2014
Hi,
Also check
http://www.nxp.com/documents/application_note/AN10778.pdf
http://www.nxp.com/documents/application_note/AN11508.pdf

[lpcware]

Content originally posted in LPCWare by zp on Fri Apr 18 05:57:48 MST 2014
Hi!
There are no specific rules for the LBGA256 package.
The minimal VIA size depends on your PCB maker.The board I have designed more than one year ago  has four layers,  MCU viases are 0.2mm and a minimal track  is 0.12mm. My PCB provider can do up to 0.05mm dia vias. But I used the solderpad 0.40mm instead of recommended 0.45mm  for the LBGA256.

zp