A first connector includes a connector body having a first connecting surface and a number of connecting holes opening in the first connecting surface and having connecting terminals therein. The fuel sensor system also includes a fuel sensor adapted to be disposed in the fuel tank to measure a property index of the fuel. An article achieved by the inventive method includes a first interconnect disposed above a substrate; a first conductive diffusion barrier layer disposed above and on the first interconnect; an upper interconnect, that is either landed or unlanded and that is disposed above the first interconnect; and an upper conductive diffusion barrier layer disposed above and on the upper interconnect. The EMR may be modulated by a beat frequency or other function of multiple focused acoustical waves. One embodiment of the apparatus generates a static magnetic field that has a variable saddle point. The endoluminal device can be dislodged from the tubular distal tip by a pusher member or pressurized fluid to expel the endoluminal device through at the desired location for treatment within the vasculature of a patient.