Methods and systems are provided for driving one or more force coils. In one embodiment, a data virtual target is initially set up for a specified storage device LUN so that data written from a host to the specified storage device LUN is received by the DVT. Pharmaceutical compositions and methods of treatment are also included. The second connecting layer consists of an electrically insulated sheet and a plurality of electrically conductive paths respectively passing through the electrically insulated sheet obliquely. A second section on the common substrate has an array of parallel conductors or wires spaced across the second section, the conductors being perpendicular to the conductors on the first section.