DocumentCode :
746930
Title :
Flexible organic complementary circuits
Author :
Klauk, Hagen ; Halik, Marcus ; Zschieschang, Ute ; Eder, Florian ; Rohde, Dirk ; Schmid, Günter ; Dehm, Christine
Author_Institution :
New Memory Platforms, Mater. & Technol., Infincon Technol., Erlangen, Germany
Volume :
52
Issue :
4
fYear :
2005
fDate :
4/1/2005 12:00:00 AM
Firstpage :
618
Lastpage :
622
Abstract :
We report the first organic complementary circuits on flexible substrates. Organic thin-film transistors were fabricated using pentacene as the semiconductor for the p-channel devices and hexadecafluorocopperphthalocyanine (F16CuPc) as the semiconductor for the n-channel devices. Both semiconductors were purchased from commercial sources and deposited by evaporation in vacuum. The pentacene layer was photolithographically patterned to simplify the circuit layout and reduce the circuit area. The transistors and circuits were manufactured on thin, transparent sheets of polyethylene naphthalate. Evaporated metals were used to define all contacts and interconnects, and a 50-nm-thick layer of solution-processed polyvinylphenol was used as the gate dielectric. Transistors and circuits operate at supply voltages as low as 8 V, and ring oscillators have a signal propagation delay as low as 8 μs per stage. To our knowledge, these are the fastest organic complementary circuits reported to date.
Keywords :
circuit optimisation; integrated circuit layout; integrated circuit manufacture; organic semiconductors; photolithography; polymer films; semiconductor device manufacture; thin film transistors; 50 nm; 8 V; circuit area reduction; circuit layout; evaporated metals; flexible organic complementary circuits; hexadecafluorocopperphthalocyanine; n-channel devices; organic integrated circuits; organic thin-film transistors; p-channel devices; pentacene; photolithographic patterning; polyethylene naphthalate; polymer gate dielectrics; ring oscillators; signal propagation delay; solution-processed polyvinylphenol; Dielectrics; Flexible printed circuits; Integrated circuit interconnections; Low voltage; Organic thin film transistors; Pentacene; Polyethylene; Semiconductor device manufacture; Substrates; Thin film transistors; Organic integrated circuits; organic thin-film transistors (TFTs); polymer gate dielectrics;
fLanguage :
English
Journal_Title :
Electron Devices, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9383
Type :
jour
DOI :
10.1109/TED.2005.844739
Filename :
1408167
Link To Document :
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