Charge-coupled device

摘要

The invention relates to a charge-coupled device in which the charge transport takes place in the form of majority charge carriers via the bulk of a surface layer of the first conductivity type which forms a p-n junction with a substrate of the second conductivity type. The comparatively thick and high-ohmic surface layer has a comparatively thin low-ohmic buried zone of the first conductivity type which adjoins the said p-n junction. The buried zone forms a buffer layer against the depletion zone belonging to the p-n junction. Without detrimentally influencing the transport properties, a low-ohmic substrate may be used, which has important advantages in particular with respect to the leakage currents.