NDLI: Current accessed magnetic bubble devices: Projections of performance

Content Provider	IEEE Xplore Digital Library
Author	Kryder, M.
Copyright Year	1965
Abstract	A critical analysis is made of the current accessed dual conductor perforated sheet magnetic bubble devices introduced by Bobeck, et al. First, the performance of the existing reported devices is considered. It is shown that although the average power dissipation to propagate one bit of data is relatively high, that with proper chip organization, the average on-chip power dissipation can be kept to tolerably low levels. However, certain components such as the nucleator and the bubble stretcher have such high power dissipation that they are expected to lead to local power dissipation problems on the chip. Assuming these local power dissipation problems can be solved, an analysis of the performance shows that these new devices potentially offer substantially higher data rates and substantially shorter access time than can be obtained with field accessed devices. Scaling rules are developed for the various components on current accessed devices. These scaling rules indicate that for most components, power dissipation per unit area will increase in inverse proportion to the circuit period. Power dissipation in the stretcher, on the other hand, increases even more rapidly with decreasing period and in a 1 Mbit device with 4 μm period would consume 80 percent of the on-chip power. Assuming the problems with power dissipation per unit area can be solved, the scaling rules suggest that the current accessed devices will enjoy an increasing performance advantage over field accessed devices as circuit period is reduced and the chip capacity is increased. This is because the data rate of current accessed devices is projected to increase in inverse proportion to circuit period, whereas the data rate of field accessed devices is dependent on the rotating field drivers and expected to remain constant.
Sponsorship	IEEE Magnetics Society
Starting Page	2392
Ending Page	2400
Page Count	9
File Size	1016690
File Format	PDF
ISSN	00189464
Volume Number	17
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1981-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic devices Power dissipation Garnet films Circuits Magnetic analysis Magnetooptic devices Cameras High speed optical techniques Drives
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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