The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1981
Filed:
Aug. 30, 1978
Peter Rydval, Munich, DE;
Ulrich Schwabe, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An integratable semi-conductor memory cell has two bipolar transistors which are identical to one another and which have their collectors connected in series with respective circuit parts having a non-linear current characteristic, the respective circuit parts being connected to a first electrical potential. The circuit parts are also connected to the base of the other respective transistor. One emitter of each of the transistors is provided for control by means of logic signals and the invention is particularly characterized in that the circuit part located between the collector of each one of the transistors and a switching point carrying the first electrical potential are selected in such a fashion that the slope dU/dI of the current-voltage characteristic will always be higher than the slope of the corresponding current values in the current-voltage characteristic of the pn-junctions of the emitter-base circuit of both transistors.