Cross talk countermeasures in inductive inter-chip wireless superconnect

Noriyuki Miura, Daisuke Mizoguchi, Takayasu Sakurai, Tadahiro Kuroda

    Research output: Contribution to journalConference article

    30 Citations (Scopus)

    Abstract

    Inductive coupling among stacked chips in a package enables 1.2Gb/s/channel data communications. Array arrangement of the channel increases data bandwidth, while signal may be degraded by cross talk. In this paper, cross talk is measured and analyzed, and cross talk countermeasures are discussed for the first time. Received signal waveforms by the inductive coupling are measured by embedded voltage detectors on a test chip. Interference-to-Signal Ratio (ISR) has good agreements between the measurements and calculations from a theoretical model. It is found that cross talk is reduced to negligibly small at a certain distance. If the channels are arranged at intervals of this distance, ISR is minimized. A technique based on Time Division Multiple Access (TDMA) is also proposed to further reduce cross talk.

    Original languageEnglish
    Pages (from-to)99-102
    Number of pages4
    JournalProceedings of the Custom Integrated Circuits Conference
    Publication statusPublished - 2004 Dec 1
    EventProceedings of the IEEE 2004 Custom Integrated Circuits Conference, CICC - Orlando, FL, United States
    Duration: 2004 Oct 32004 Oct 6

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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