Does IPC address the following questions. We design and build SMT components for pcb construction. If so, could somebody please specify where these are referenced? 1.) Should the pad on the bottom of a component be rectangular or square or is this important? 2.) Is there a "standard" pad size (like 2 x 2 mm)? 3.) Is there a simple design rule for optimizing the land pattern for the pcb based on the component pad? We typically use 10 mils in each direction but the inspection direction we use 20 mils. Regards, Mark Gilbert --------------------------------------------------------------------------------- TechNet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF TECHNET Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------