Abstract

In this letter, polycrystalline-silicon thin-film transistors (poly-Si TFTs) with 50-nm nanowire (NW) channels, which are fabricated without advanced photolithography by using a sidewall spacer-formation technique, are proposed for the first time. Because the polygate electrode is perpendicularly across poly-Si NW channels to form a trigatelike structure, the proposed poly-Si NW TFT owns outstanding gate controllability. In summary, a simple and low-cost scheme is proposed to fabricate high-performance poly-Si NW TFT suitable for future display manufacturing and practical applications.

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