220716 ⎘
Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Details; Driving means, e.g. electrodes, coils for networks using surface acoustic waves; Transducers of particular shape or position; Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers being split