I had one component advise on a signal that looped out from the chip throug= h some other components and back, to keep the output and input track separa= ted as far as possible, and on those tracks to minimize loop area.=20 Once you have the components shoved together and tetrised to the IPC limits= , those requirements are quite contradictory. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .