Solid state devices combining the use of surface-acoustic-wave devices and charge-coupled devices

A solid state device comprising

• a surface acoustic wave device including
• a first substrate capable of supporting a travelling acoustic wave signal on a surface thereof;
• means for generating a first travelling acoustic wave input signal on said surface, said acoustic wave signal having an electromagnetic field associated therewith;
• a charge-coupled device including
• a second substrate having an insulating layer positioned on a surface thereof adjacent said first substrate so as to form a spatial region therebetween;
• a plurality of charge storage wells, each capable of holding a charge therein;
• interface means comprising
• a plurality of conductive means positioned on said insulating layer each of said conductive means electrically connected at at least one end to said second substrate and associated with one of said charge storage wells of said charge-coupled device, each of said conductive means being responsive to a portion of the electromagnetic field of said acoustic wave signal to produce on said conductive means a voltage potential proportional to the corresponding portion of the electromagnetic field;
• a plurality of first storage means each capable of being formed in said second substrate and associated with each of said conductive means for storing a charge therein;
• said plurality of charge storage wells capable of being formed in said charge-coupled device and associated with each of said conductive means;
• means for transferring charges between said first storage means and their associated charge storage wells.