Hey Tom; Yes.. there is a reason !!! They breakup the large copper area, this reduces board warppage. Unless, for electrical reasons you need a low impedance path, why do you need a direct connection?? Louis T. Dallara Printed Circuit Design Consultant Routing for Performance not Connectivity!! Under contact to Lockheed Martin Fairchild Systems [log in to unmask] http://www.waterw.com/~ldallara > Does it make sense to use thermal connections on vias? > Thermals were originally used on thru hole comps to increase > solderability of the leads, but now that is not necessary for SMT. > Is there any reason to use them for vias? > I've been using direct connection to the inner planes. > > Tom Kavendek > Lucent Technologies > Murray Hill, N.J. > [log in to unmask] > > **************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ****************************************************************************