Nano-compact disks with 400 Gbit/in2 storage density fabricated using nanoimprint lithography and read with proximal probe

Peter R. Krauss, Stephen Y. Chou

Research output: Contribution to journalArticle

167 Scopus citations

Abstract

Nano-compact disks (Nano-CDs) with 400 Gbit/in2 topographical bit density (nearly three orders of magnitude higher than commercial CDs) have been fabricated using nanoimprint lithography. The reading and wearing of such Nano-CDs have been studied using scanning proximal probe methods. Using a tapping mode, a Nano-CD was read 1000 times without any detectable degradation of the disk or the silicon probe tip. In accelerated wear tests with a contact mode, the damage threshold was found to be 19 μN. This indicates that in a tapping mode, both the Nano-CD and silicon probe tip should have a lifetime that is at least four orders of magnitude longer than that at the damage threshold.

Original languageEnglish (US)
Pages (from-to)3174-3176
Number of pages3
JournalApplied Physics Letters
Volume71
Issue number21
DOIs
StatePublished - Jan 1 1997

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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