Hi Sol, One manufacturer I can tell is DDi Europe's Tewkesbury factory. http://www.eu.ddiglobal.com/facilities/facilities_pcb_zlin.htm They say they can do quite advanced stuff, in reality they can do even better, contact their sales support for more info. We have had few boards manufactured there, with excellent quality. 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 indrek@xxxxxxxxx | www.bps.co.ee Sol Tatlow wrote: > I have a few sources myself, but am wondering if anyone can suggest a > PCB manufacturer for a 30 layer board. There are a few requirements, > which make it a bit tough, like <100=B5 track/ spacing, 500=B5 via pads, > plus there with around 11,000 pins, there will be in the region of > 8,000+ vias - so this is not about a handful of tracks. > > It must not necessarily be a recommendation - there are not many > board shops that have done something like this at all, and in any > case, even for a good one, this may be problematical. Like I said, > I am just after names - I will evaluate the leads myself, and no > responsibility will be attached to the person giving such a lead. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu