Abstract:
A dynamic shift register is disclosed for providing large capacity storage of digital data information in a small-volume solid-state package. A unique high-density approach is taken, involving a cell comprising n subcells capable of storing n-1 bits of data. The cells are fabricated preferably of field effect transistors embedded in a semiconductor wafer or monolith.
Abstract:
An electronic bulk storage having the characteristics of a sequential access storage device, such as a disk or a drum, but which has a low-access time and a variable instantaneous data rate. Data re stored parallel by word in a plurality of electronically rotatable memory elements selectable by a memory selection matrix. Each element has a feedback loop for recirculating data and when selected, a group of elements is read or written in parallel to a word at a time by electronically rotating the selected memory elements.
Abstract:
A nondestructive read-integrated circuit memory cell consisting of a pair of cross coupled transistors. The junctions between the collectors of the transistors and the intrinsic epitaxial layer is utilized to provide isolation between the transistors. The transistors are formed by a triple-diffusion process wherein the collector region contacts a buried layer of opposite semiconductivity relative to the semiconductivity of the substrate structure. An epitaxial growth being of the same semiconductivity as the buried layer region is utilized as both a resistive material between the input and the buried layer and to form a diode gradient between the epitaxial region and the collector region of the transistors. The buried region forms a diode junction with the collector regions of the transistor to allow a bilevel operation of the memory cell.