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Journal Article Low-Voltage-Operated Organic One-Time Programmable Memory Using Printed Organic Thin-Film Transistors and Antifuse Capacitors
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Authors
Soon-Won Jung, Bock Soon Na, Chan Woo Park, Jae Bon Koo
Issue Date
2014-11
Citation
Journal of Nanoscience and Nanotechnology, v.14, no.11, pp.8167-8170
ISSN
1533-4880
Publisher
American Scientific Publishers (ASP)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1166/jnn.2014.9880
Project Code
14MB1400, The core technology development of light and space adaptable energy-saving I/O (Input/Output) platform for future advertising service, Hwang Chi-Sun
Abstract
We demonstrate an organic one-time programmable memory cell formed entirely at plasticcompatible temperatures. All the processes are performed at below 130 - C. Our memory cell consists of a printed organic transistor and an organic capacitor. Inkjet-printed organic transistors are fabricated by using high-k polymer dielectric blends comprising poly(vinylidenefluoridetrifluoroethylene) [P(VDF-TrFE)] and poly(methyl methacrylate) (PMMA) for low-voltage operation. P(NDI2OD-T2) transistors have a high field-effect mobility of 0.2 cm2 /Vs and a low operation gate voltage of less than 10 V. The operation voltage effectively decreases owing to the high permittivity of the P(VDF-TrFE):PMMA blended film. The data in the memory cell are programmed by electrically breaking the organic capacitor. The organic capacitor acts like an antifuse capacitor,because it is initially open, and it becomes permanently short-circuited by applying a high voltage. The organic memory cells are programmed with 4 V, and they are read out with 2 V. The memory data are read out by sensing the current in the memory cell. The printed organic one-time programmable memory is suitable for applications storing small amount of data, such as low-cost radio-frequency identification (RFID) tag.
KSP Keywords
High Voltage, High permittivity, High-k polymer dielectric, Low voltage operation, Low-cost, Organic capacitor, Organic thin-film transistors, Organic transistor, Passive radio frequency identification(RFID), Radio Frequency(RF), Thin-Film Transistor(TFT)