Comparison of Conventional and Maskless Lithographic Techniques for More than Moore Post-processing of Foundry CMOS Chips

Andreas Tsiamis, Yifan Li, Camelia Dunare, Jamie Marland, Ewen Blair, Stewart Smith, Jonathan G. Terry, Srinjoy Mitra, Ian Underwood, Alan Murray, Anthony J. Walton

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)
    143 Downloads (Pure)

    Abstract

    This article details and compares the technology options for post-processing foundry produced CMOS at chip-scale to enable More than Moore functionality. In many cases there are attractions in using chip-based processing through the Multi-Project Wafer route that is frequently employed in research, early-stage development and low-volume production. This article identifies that spray-based photoresist deposition combined with optical maskless lithography demonstrates sufficient performance combined with low cost and operational convenience to offer an attractive alternative to conventional optical lithography, where spin-coated photoresist is exposed through a patterned photomask. [2020-0249]
    Original languageEnglish
    Pages (from-to)1245-1252
    Number of pages8
    JournalJournal of Microelectromechanical Systems
    Volume29
    Issue number5
    Early online date21 Aug 2020
    DOIs
    Publication statusPublished - Oct 2020

    Keywords

    • CMOS
    • spray-coating
    • maskless
    • spin-coating
    • More than Moore
    • on-chip
    • post-processing
    • photomask
    • optical lithography

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