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US 5,917,747 AGranted
Digital memory element
AssigneeDeutsche Telekom AG
InventorsHans Koops, Gerhard Hanke
Life of this patent
Estimating the term…
Abstract
A digital memory element having three miniaturized electron tubes, which is faster and smaller by at least one further order of magnitude than known digital memory elements, can be produced through conventional and additive lithography. The digital memory element is a small memory capacitor linked to the anode of a write-in tube, to the cathode of an erase tube, and to a deflection element of a read-out tube which deflects an electron beam, in dependence upon the charge state, to one of two detectors.
Claims5
A digital memory element comprising:
- a memory capacitor having a small storage capacitance;
- a first miniaturized electron tube having a first anode cooperating with the memory capacitor, the first miniaturized electron tube capable of charging the memory capacitor;
- a second miniaturized electron tube having a cathode cooperating with the memory capacitor, the second miniaturized electron tube capable of discharging the memory capacitor;
- a third miniaturized electron tube having a deflection element for deflection of an electron beam in dependence upon the charge of the memory capacitor, the electron beam emitted from the third miniaturized electron tube;
- and
- a pair of detectors, wherein the electron beam strikes a first one of the pair of detectors when the memory capacitor is uncharged and strikes a second one of the pair of detectors when the memory capacitor is charged.
3 more elements
Dependencies are inferred from the claim text.