Werner Almesberger wrote: > Good news ! Prof. Marcelo Knoerich Zuffo of the University of Sao > Paulo (USP) has offered gta02-core the use of his SMT facility. As if > this wasn't generous enough, all he asks for in return are a few of > our prototypes for his team to play with. >
Great news! Many thanks to Prof. Zuffo of USP for his offer to utilize his SMT facility and of course Jon "Maddog" for making all this possible. > Regarding PCBs, there are no PCB houses that are good at making this > kind of board in small quantities in Brazil, so the production team at > USP recommended that we look for a PCB maker elsewhere. If anyone has > a recommendation, please post it. > > So far, I've had good experience with Advanced Circuits [1] . They are fast, reliable and can almost do everything (just a matter of the price ;-) ), also there exists a nice online quoting tool with design file check . However the capability of this online quoting tool is limited and If you need specific spec you are better off to directly contact a sales person. You can find a summery of their capabilities here [2]. [1] http://www.4pcb.com/ [2] http://www.4pcb.com/media/Capabilities%20August%2009%20-%20PDF%20version.pdf > As a reminder, our PCB design parameters are 6 layers, 1 mm board > thickness, 5 mil track width and clearance, and ENIG coating. (USP had > some nasty experiences with cheaper coatings, and we wouldn't want to > lose half our boards to SMT problems.) 1 mm for six layers is a thin > board, which may drive the price up. 5 mil is also more demanding than > the 6 mil many mainstream PCB houses offer. > I think to get realistic and comparable quotes It would be good to summarize "all" specs including board array size, panel frame width etc. (requirements of SMT fab). Rene _______________________________________________ gta02-core mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/gta02-core
