Quantum wire CCD charge pump

Details Quantum wire CCD charge pump Quantum wire CCD charge pump

1990-08-21

1992-09-01

Larkins, William D.

Static information storage and retrieval

Systems using particular element

Capacitors

324678, 377 63, 357 4, 357 16, 357 22, 357 24, H01L 29796

Patent

active

051445808

ABSTRACT:
The very accurate quantization of charge transport or electron current is achieved within a heterostructure substrate by defining a quantum wire within the substrate and propagating a a.c. potential characterized by a travelling wave envelope along the length of the quantum wire. The travelling wave a.c. potential is applied to the length of the quantum wire by two opposing lateral gate arrays defined within the substrate. For each gate on the array is provided a corresponding gate on the opposing array which is offset in the direction of the current transport by a predetermined distance. A succeeding space is then provided in both arrays where there is no gate. An offset a.c. potential is then applied to the gate of one array, the offset gate of the opposing array and to the array as a whole through an overlying gate running the longitudinal length of the quantum, wire which gate applies a spatially independent a.c. potential along the length of the quantum wire.

REFERENCES:
patent: 4683484 (1987-07-01), Derkits, Jr.
patent: 4969018 (1990-11-01), Reed
Hyneck, IEEE Trans on Electron Devices, May 1981, pp. 483-489.

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