Two level electrode configuration for three phase charge coupled device

A two level electrode configuration for a three phase charge coupled device having a channel for movement of charge packets comprising:

• a first phase bus extending along one side of the channel and having electronically interconnected upper and lower level portions,
• a dual layered series of first phase electrodes extending from said first phase bus across the channel, with alternate ones of said first electrodes disposed on said upper level and the remainder of said first electrodes disposed on said lower level,
• a second phase bus extending along the other side of the channel and having electrically interconnected portions on said upper and lower levels,
• a dual layered series of second phase electrodes extending from said second phase bus across the channel, with alternate ones of said second electrodes disposed on one level and the remainder of said second electrodes disposed on the other level,
• a third phase bus extending along said other side of the channel and being interleaved over and under alternate ones of said second phase electrodes, and
• a dual layered series of third phase electrodes extending from said third phase bus across the channel with alternate ones of said third electrodes disposed on one level and the remainder of said third electrodes disposed on the other level,
• such that along said channel there is a series of phase electrode sets, each said set comprising a first phase electrode, a second phase electrode, and a third phase electrode, said phase electrodes arranged in the same repeating sequence in each electrode set,
• and insulating means interposed between adjacent ones of said phase electrodes.