The rapid progress of semiconductor products in the electronic industry over the past two decades in the group of active components has not been matched by an equal progress of the passive components. Integration has blurred the traditional boundary between components and circuits. With integration penetrating deeper and deeper into electronic circuitry the connecting methods of the IC with the rest of the system becomes a cost and quality determining factor of prime importance. It is stressed that connecting methods of the other, passive components have to be compatible with the connecting method of the IC.