NDLI: “Millipede” – an AFM data storage system at the frontier of nanotribology

Content Provider	Springer Nature Link
Author	Dürig, U. Cross, G. Despont, M. Drechsler, U. Häberle, W. Lutwyche, M.I. Rothuizen, H. Stutz, R. Widmer, R. Vettiger, P. Binnig, G.K. King, W.P. Goodson, K.E.
Copyright Year	2000
Abstract	The “Millipede” data storage concept is based on the parallel operation of a large number of micromechanical levers that function as AFM sensors. The technique holds promise to evolve into a novel ultrahigh-density, terabit-capacity, and high-data-rate storage technology. Thermomechanical writing and reading in very thin polymer (PMMA) films is used to store and sense 30–40 nm sized bits of similar pitch size, resulting in 400–500 Gbit/in$^{2}$ storage densities. High data rates are achieved by operating very large arrays (32×32) of AFM sensors in parallel. Batch-fabrication of 32×32 AFM cantilever array chips has been achieved, and array reading and writing have been demonstrated. An important consideration for the Millipede storage project is the polymer dynamics on the size scale of one bit. Scaling of rheological parameters measured for macroscopic polymer samples is likely to be incorrect due to the finite length of the underlying molecular polymer chain, a size that is comparable to the bit itself. In order to shed light on these issues we performed lifetime studies of regular arrays of nanometer size patterns using light-scattering techniques.
Starting Page	25
Ending Page	32
Page Count	8
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	9
Issue Number	1-2
e-ISSN	15732711
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2000-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Surfaces and Interfaces, Thin Films Mechanics
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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