Electrical pulse counters – pulse dividers – or shift registers: c – Counting or dividing in incremental steps – Beam type tube
Patent
1990-07-30
1991-11-12
Munson, Gene M.
Electrical pulse counters, pulse dividers, or shift registers: c
Counting or dividing in incremental steps
Beam type tube
377 58, H01L 2978, G11C 1928
Patent
active
050652036
ABSTRACT:
The charge transfer efficiency of a two-phase charge-coupled device cell is enhanced by providing a three-tiered built-in potential in the channel of each cell. Two lower potential tiers form a trenched potential well in the cell for storing charge. A higher potential tier between the trenched potential well of a cell and the potential well of a preceding neighbor cell provides a potential barrier preventing backflow of charge from well-to-well. The potential trench is located at the downstream end of the well adjacent a succeeding neighbor cell of the CCD.
REFERENCES:
patent: 3760202 (1973-09-01), Kosonocky
patent: 3767983 (1973-10-01), Berglund
patent: 3796932 (1974-03-01), Amelio et al.
patent: 3852799 (1974-12-01), Walden
patent: 3986198 (1976-10-01), Kosonocky
patent: 4067001 (1978-01-01), Hoffman
patent: 4245233 (1981-01-01), Lohstrom
patent: 4358890 (1982-11-01), Heller et al.
patent: 4364164 (1982-12-01), Bluzer et al.
Seguin et al., Charge Transfer Devices, Academic Press, N.Y., 1975, pp. 80-85.
Taggart John E.
Yang Kei-Wean C.
Dellett John P.
Munson Gene M.
Smith-Hill John
Tektronix Inc.
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