The size of the data acquisition engine has been reduced drastically to just one-fifth of the conventional size (Yokogawa products) by redeveloping key components. A good example is the revolutionary integrated planar transformer, developed by Yokogawa, which eliminates the windings of transformers by adopting multi-layer, high precision, thin-film coils. These make the transformer more compact and higher performance. A second example is the surface-mounted solid-state relay (SSR), the power consumption of which has been reduced by improving the high breakdown voltage SSR, which has been proven reliable by use in millions of channels.