Back to results
US 4,234,887 AGranted
V-Groove charge-coupled device
AssigneeInternational Business Machines Corporation
InventorWilbur B. Vanderslice, Jr.
Life of this patent
Estimating the term…
Abstract
A charge-coupled device shift register is formed in V-grooves provided by anisotropically etching in a substrate. insulated conductive electrodes are provided perpendicular to the V-grooves to form a plurality of parallel shift registers which transfer charges along the length of the V-grooves.
Claims7
A charge transfer device comprising:
- a semiconductor substrate having at least one longitudinal recess having a length substantially greater than its width formed in a surface thereof;
- a plurality of longitudinal charge transfer electrodes positioned over and substantially perpendicular to said recess for effecting charge transfer of carriers from under an electrode to under an adjacent electrode within and along the length of said recess in response to signals applied to said electrodes;
- and
- isolation means between said charge transfer electrodes and the portions of said surface of said substrate adjacent to said recess for preventing charge transfer from occurring in said portions of said surface in response to said signals.
1 more element
Dependencies are inferred from the claim text.