Coil structures and isolators using them. A coil(s) is (are) used as a magnetic field-generating element(s) paired with another coil(s) or other magnetic field-receiving element(s). The coil(s) is(are) formed in or on a substrate which does not include some or all of the driver (i.e., input) or receiver...http://www.google.co.uk/patents/US7545059?utm_source=gb-gplus-sharePatent US7545059 - Chip-scale coils and isolators based thereon
