Sol- You may want to check out Sanmina ( http://www.sanmina-sci.com/Solutions/pcb_fab.html ). They have done boards up to 60 layers and are capable of doing 2 mil line width and spacing. -Ray (no connection other than having used boards made by them in the past) Sol Tatlow wrote: >Hi folks, > >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. > >Mit freundlichen Gr=FC=DFen > >____________________________________ >Sol Tatlow, M.Eng. (Oxon) >ProDesign Electronic & CAD Layout GmbH >Product Developer >Albert-Mayer-Str. 16 >D-83052 Bruckmuehl >Phone: +49 (0) 8062-808-302 >Fax: +49 (0) 8062-808-333 >Mailto:sol.tatlow@xxxxxxxxxxxxxxxxxxxx >www.prodesign-europe.com >____________________________________=20 > >------------------------------------------------------------------ >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 > > > > > ------------------------------------------------------------------ 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