Title :
Fast organic circuits on flexible polymeric substrates
Author :
Sheraw, C.D. ; Nichols, J.A. ; Gundlach, D.J. ; Huang, J.R. ; Kuo, C.C. ; Klauk, H. ; Jackson, T.N. ; Kane, M.G. ; Campi, J. ; Cuomo, F.P. ; Greening, B.K.
Author_Institution :
Center for Thin Film Devices, Pennsylvania State Univ., University Park, PA, USA
Abstract :
We have fabricated the fastest organic circuits on flexible substrates yet reported. These circuits use the small-molecule hydrocarbon pentacene as the active semiconductor material and 75 /spl mu/m thick flexible, transparent, colorless, polyethylene naphthalate (PEN) film as the substrate. Transistor arrays, inverters, ring oscillators, and other circuits with good electrical performance, yield, and uniformity were obtained. A field-effect mobility of 1 cm/sup 2// V-s was extracted from OTFT saturation characteristics, and ring oscillators had minimum propagation delay <40 /spl mu/sec per stage and <50 /spl mu/sec per stage at bias levels below 8 V.
Keywords :
carrier mobility; delays; field effect integrated circuits; integrated circuit yield; organic semiconductors; thin film transistors; 75 micron; OTFT saturation characteristics; active semiconductor material; bias levels; electrical performance; field-effect mobility; flexible polymeric substrates; inverters; organic thin-film transistors; pentacene; polyethylene naphthalate; propagation delay; ring oscillators; small-molecule hydrocarbon; transistor arrays; yield; Flexible printed circuits; Hydrocarbons; Pentacene; Plastic films; Polyethylene; Polymers; Ring oscillators; Semiconductor materials; Substrates; Thick film circuits;
Conference_Titel :
Electron Devices Meeting, 2000. IEDM '00. Technical Digest. International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-6438-4
DOI :
10.1109/IEDM.2000.904396
