Progress Toward the Crosstie Memory IV.
Abstract
This is the fourth annual technical report of progress toward the crosstie memory and it emphasizes the work done during the past year. In the crosstie memory, information is stored, propagated and detected in magnetic domain walls of Permalloy films about 370 A thick. Serrated edges on narrow thin film permalloy strips are used to center a domain wall in each strip and provide stable positions for crossties and Bloch lines. The magnetoresistance effect in the information bearing film is used for detection. The anticipated performance of the crosstie memory includes a shift rate of 20,000,000 bits/sec, a bit density greater than 150,000 bits/sq cm, an operating temperature range from -50 C to 100 C, nonvolatility, low cost and low power consumption. At this time all the necessary functions associated with the shift registers have been demonstrated and shown to be compatible. Present emphasis is being placed on widening the margins of operation so that a reliable and manufacturable device will result. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1976
- Accession Number
- ADA039850
Entities
People
- H. R. Irons
- J. W. Mccorkle
- L. J. Schwee
- O. J. Van Sant Jr.
- W. E. Anderson
Organizations
- Naval Ordnance Laboratory