Electrical characteristics of driver LSI with 35μm thickness for flexible display

Michihiro Asakawa, Takuro Nakashima, Tsubasa Saeki, Reiji Hattori, Akihiko Yokoo, Ryo Sakurai, Norio Nihei, Yoshitomo Masuda

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    Abstract

    Electrical characteristics of the mechanically flexible driver LSI as thin as 35μm mounted directly on a flexible display panel were precisely analyzed. The high-voltage transistors on this LSI show the current decrease by 10-30% in high voltage region, comparing with that of an ordinary thickness LSI. These phenomena can be associated with a self-heating effect. We considered the thermal diffusion on the thin chip by changing material of the measurement stage. Moreover, we analyzed the transistor characteristics on the thin chip under convex and concave bending conditions. The drain current change by piezoresistive effect was observed.

    Original languageEnglish
    Pages (from-to)1570-1575
    Number of pages6
    JournalIEICE Transactions on Electronics
    VolumeE91-C
    Issue number10
    DOIs
    Publication statusPublished - Jan 1 2008

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    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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