Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1986-05-07
1989-02-28
James, Andrew J.
Static information storage and retrieval
Magnetic bubbles
Guide structure
357 36, 357 15, 357 51, 357 71, 365149, 365154, 365155, 365175, H01L 2710, H01L 2948, H01L 2940
Patent
active
048090522
ABSTRACT:
A semiconductor memory device is provided such as the type having flip-flop memory cells each including two bipolar transistors in cross connection with each other. In certain embodiments, at least a part of a Schottky barrier diode or capacitor in the memory cell is formed under a digit line. This memory device is greatly reduced in its required area, and the Schottky barrier diode and capacitor are negligibly influenced by the digit line. In other embodiments, it is arranged to provide different electrodes for the Schottky barrier diode and the capacitor to optimize construction in a minimized space.
REFERENCES:
patent: 3504430 (1970-04-01), Kubo
patent: 4471405 (1984-09-01), Howard et al.
patent: 4538244 (1985-08-01), Sugo et al.
patent: 4566026 (1986-01-01), Lee et al.
patent: 4636833 (1987-01-01), Nishioka et al.
Murarka, "Refractory Silicides . . . Circuits" J. Vac. Sci. Technol., 17(4) Jul./Aug. 80, pp. 775-792.
IBM TDB, Zandler, "Dynamic Schottky Storage Cell" vol. 17, No. 11, 4/75, pp. 3215-3216.
IBM TDB, Beers et al., "Integrated Harper Cell" vol. 18, No. 9, Feb. 76, pp. 2875-2877.
Higeta Keiichi
Mitamura Ichiro
Mukai Kiichiro
Nishioka Yasushiro
Ogiue Katsumi
Hitachi , Ltd.
Jackson, Jr. Jerome
James Andrew J.
LandOfFree
Semiconductor memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1372165