Magnetic Bubble Research
Abstract
Section I of this report treats progress toward a complete conceptual design for the all-bubble processor described in AFAL-TR-74-19. Logic requirements for control and arithmetic functions are discussed in detail. One of the arithmetic units, a Full-Adder, was configured using three different, but complete, sets of logic elements. The result of this exercise is the specification of the complexity of the designs in terms of number of individual logic elements required. Section II treats the continuing work on hybrid technologies. Experimental results relevant to the use of integrated optics for bubble detection are presented. Experience with a Permalloy AND/OR gate is reported in Section III, and some of the difficulties expected in realizing Permalloy logic are pointed out. Results for e-beam patterned and plated Permalloy processed circuits having approximately 0.4 micrometers linewidth geometries are given, and it is concluded that both processing and garnet material capability should now allow successful device fabrication. Lastly, progress toward identifying and remedying problems associated with ion-implant propagation structures is reported.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1974
- Accession Number
- ADB002919
Entities
People
- C. M. Chang
- D. C. Bullock
- F. G. West
- J. C. Linn
- J. T. Carlo
- R. A. Naden
- W. C. Hubbell
Organizations
- Texas Instruments