Hi there 1 - Try www.precisioncircuits.com.au, and check out their CID pages 2 - IPC-D-275 is still active, but there may well be more up to date documents. (I expect you'll get a lot of debate over this one!) Cheers Richard ____________________________ Richard Moffat PCB CAD Engineer Tait Electronics NZ >>> Donna Perry <[log in to unmask]> 9/July/1999 10:01am >>> Question 1: What website gives a good outline with some explanation of the PCB fabrication process for multilayer boards? I would like to be less presumptive with our RF board fabrication drawing notes, but need more input. Question 2: Is IPC-D-275 an active document, or has it been superceded by another? Thanks, D.Perry