FORM AND DIMENSIONS OF MAGNETIC FILM MEMORY ELEMENTS AND CONSTRUCTION OF STORAGE UNITS,
Abstract
Factors are reviewed which govern the optimum design of planar printed circuit memories. The form of memory discussed is the matrix of deposited rectangular elements, which is recognized as the best configuration for memory applications. Edge dimensions of an element should vary within the limit ratios from 1.5:1 up to 10:1; substrate can be glass as well as silver, copper, aluminum or similar good conductors. Substrate thickness should not be less than 0.5 - 0.8 mm. Theoretically, bit densities of 500 sq cm are feasible, however, practice has shown that the maximum figure is not over 50/sq cm. A 50 x 50 cm section of substrate is about the maximum that can be uniformly covered by condensate at any given time. Several fabrication configurations are illustrated as having good magnetic properties, minimum interconnections, etc. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 16, 1968
- Accession Number
- AD0681616
Entities
People
- G. P. Zharikov
- L. I. Oleinik
Organizations
- National Air and Space Intelligence Center