Low Power 30 MHz D Flip-Flop in a Flexible a-IGZO Thin-Film Transistor Technology

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A flexible D Flip-Flop (DFF) fabricated in an unipolar n-Type thin-film transistor (TFT) technology is studied and presented. It has two operating modes: low power mode, reaching frequencies up to 16 MHz with only 0.172 mW total power at 3 V supply voltage, and high speed mode, showing over 30 MHz operation at 9 V with 2.59 mW power. To reduce the energy consumption, this enhanced architecture decouples a significant portion of the circuit during part of the operating cycle. To the best of our knowledge, considering comparable thin-film technologies, this DFF provides the highest figure-of-merit (operation frequency/total power), and at high speed mode also the highest operation frequency reported up to date.


Original languageEnglish
Title of host publication2023 IEEE International Flexible Electronics Technology Conference (IFETC)
Publication statusPublished - 13 Aug 2023

External IDs

ORCID /0000-0002-4230-8228/work/143783472