Hi Jim,

Jim Monroe wrote:
Is anyone reliably designing and building boards using .5 mm pitch BGA's? We're currently doing a layout using these little monsters!

Have used for over a year now. Just received boards with two 0.5mm BGA's on yesterday. Still, we mostly use 0.8mm BGA's due ease of routing without using microvias.

Can anyone recommend a good fab house for this kind of design?

DDi Tewkesbury in UK. They also do 75um traces (approx 3mil). http://www.eu.ddiglobal.com/

I have also heard good words about Sanmina-SCI, but never used them:
http://www.sanmina-sci.com

There are others.

Indrek

--
 Indrek Rebane           |      Borthwick-Pignon
 Electronics Engineer    |    Tartu Science Park
 Phone: (+372) 7 302 641 | Riia 185, 51014 Tartu
 Fax:   (+372) 7 383 041 |               Estonia
 [EMAIL PROTECTED]        |         www.bps.co.ee



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