Operation of bistable phase-locked single-electron tunneling logic elements

T. Ohshima, Richard Kiehl

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The operation of bistable phase-locked single-electron tunneling logic elements is analyzed using a deterministic model of single-electron tunneling. The elements consist of capacitively coupled junctions pumped by an ac signal at twice the tunneling frequency and activated by clocking the dc bias. Logic states are defined by the tunneling phase with respect to the ac pump. The bistable operation is examined over ranges of input phase, clock phase, capacitive coupling factor, dc bias, and ac pump amplitude. Useful operating ranges are determined for stable locking and control of the logic state by input signals, and the signal transfer between coupled stages is examined. It is shown that operation is possible with reasonable input phase margins over wide ranges in dc bias and pump amplitude and for parameter ranges compatible with extremely low power-delay products. Circuit architectures for exploiting the attractive power-delay performance and extremely high gate density possible with this approach are discussed.

Original languageEnglish (US)
Pages (from-to)912-923
Number of pages12
JournalJournal of Applied Physics
Volume80
Issue number2
StatePublished - Jul 15 1996
Externally publishedYes

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electron tunneling
logic
pumps
clocks
locking
margins
products

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Operation of bistable phase-locked single-electron tunneling logic elements. / Ohshima, T.; Kiehl, Richard.

In: Journal of Applied Physics, Vol. 80, No. 2, 15.07.1996, p. 912-923.

Research output: Contribution to journalArticle

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