For this app there is also 355 nm laser with beam directing galvo mirrors or other
acousto-optic modulator methods that can drill more than 100 microvia holes per second in FR4. http://www.circuitree.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2133,79365,00.html JG On Sun, 2004-08-22 at 13:45, Dave McGuire wrote: > > Just add a homemade 150 000 rpm compressor-driven spindle PCB drill > > with > > linear X-Y drives and 2um precision and you can save walking to PCB > > manufacturer (however the machine weighs 6 tons - I fear it would > > probably fall through the room's floor ;-) ) > > Well...there are limits. ;) > > -Dave
