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E. Eleftheriou, Th.
Antonakopoulos, G. K. Binnig, G. Cherubini, M. Despont, A. Dholakia, U.
Durig, M. A. Lantz, H. Pozidis, H. E. Rothuizen and P. Vettiger:
Millipede - A MEMS-based
Scanning-Probe Data-Storage System
IEEE Transactions on
Magnetics, Vol. 39, No. 2, March 2003, pp. 938-945.
Abstract:
Ultrahigh storage densities of up to 1 Tb/in.2 or more can be
achieved by using local-probe techniques to write, read back, and erase
data in very thin polymer films. The thermomechanical
scanning-probe-based data-storage concept called Millipede combines
ultrahigh density, small form factor, and high data rate. After
illustrating the principles of operation of the Millipede, a channel
model for the analysis of the readback process is introduced, and
analytical results are compared with experimental data. Furthermore, the
arrangement of data-storage fields as well as dedicated fields for servo
and timing control is discussed, and system aspects related to the
readback process, multiplexing, synchronization, and
position-error-signal generation for tracking are introduced. Finally,
the application of (d; k) modulation coding as a means to further
increase areal density is presented, and the effect on the user data
rates discussed.
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