Yes. The naming conventions have to be controlled or standardized. ________________________________ From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Ron Mora Sent: Monday, August 20, 2007 11:05 AM To: icu-pcb-forum@xxxxxxxxxxxxx; icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Re: rooms and areas (beginner with performance) Dave, Can you assign the constraint area at the part level in the library? Ron Mora At 10:16 AM 8/20/2007 -0700, Dave Mattice wrote: I have always used a Constraint Area for this. And assigned the appropriate Spacing and Physical constraint sets. Only trouble is that the constraint does not follow The component when moving. You can create a Alternate and lock it in place that way. dm ________________________________ From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of sjchar3@xxxxxxxxxxxx Sent: Monday, August 20, 2007 9:21 AM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] rooms and areas (beginner with performance) group: I have a BGA and I would like to route 4 mil trace between pins, and only a certain via would be used in this location. The rest of the board is 8 mil traces. Do i set up a room, area or region? Thanks Austin for you earlier reply. Thanks again. ________________________________ Check Out the new free AIM(R) Mail <http://pr.atwola.com/promoclk/100122638x1081283466x1074645346/aol?redir =http%3A%2F%2Fwww%2Eaim%2Ecom%2Ffun%2Fmail%2F> -- Unlimited storage and industry-leading spam and email virus protection.