Low-temperature polysilicon thin-film transistors fabricated fromlaser-processed sputtered-silicon films |
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Authors: | Giust GK Sigmon TW Carey PG Weiss B Davis GA |
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Affiliation: | Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ; |
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Abstract: | In an effort to develop a simple low-temperature high-performance polysilicon thin-film transistor (TFT) technology, we report a fabrication process featuring laser-crystallized sputtered-silicon films. This top Al-gate coplanar TFT process subjects the substrate to a maximum temperature of 300°C, and produces devices with mobilities up to 450 cm2/Vs, on/off current ratios greater than 107 , without using a post-hydrogenation step. We believe these results represent the highest performance TFT's to date fabricated from sputtered silicon films |
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