Novel lithography-independent pore phase change memory

  • M. Breitwisch
  • , T. Nirschl
  • , C. F. Chen
  • , Y. Zhu
  • , M. H. Lee
  • , M. Lamorey
  • , G. W. Burr
  • , E. Joseph
  • , A. Schrott
  • , J. B. Philipp
  • , R. Cheek
  • , T. D. Happ
  • , S. H. Chen
  • , S. Zaidi
  • , P. Flaitz
  • , J. Bruley
  • , R. Dasaka
  • , B. Rajendran
  • , S. Rossnagel
  • , M. Yang
  • Y. C. Chen, R. Bergmann, H. L. Lung, C. Lam

Research output: Contribution to journalConference articlepeer-review

120 Scopus citations

Abstract

We have successfully demonstrated a novel "pore" phase change memory cell, whose critical dimension (CD) is independent of lithography. Instead, the pore diameter is accurately defined by intentionally creating a "keyhole" with conformai deposition. Fully integrated 256kbit test chips have been fabricated in 180nm CMOS technology. We report SET times of 80ns, RESET currents less than 250μA, and accurate sub-lithographic CDs that can be less than 20% the size of the lithographically-defined diameter.

Original languageEnglish (US)
Article number4339743
Pages (from-to)100-101
Number of pages2
JournalDigest of Technical Papers - Symposium on VLSI Technology
DOIs
StatePublished - 2007
Externally publishedYes
Event2007 Symposium on VLSI Technology, VLSIT 2007 - Kyoto, Japan
Duration: Jun 12 2007Jun 14 2007

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Chalcogenide
  • NV memory
  • PCRAM
  • Pore

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