Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2006-05-30
2006-05-30
Pham, Hoai (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257S228000, C257S431000, C438S780000, C430S270100
Reexamination Certificate
active
07053401
ABSTRACT:
Soluble, photosensitive precursors of pentacene are synthesized by a one-step Diels-Alder reaction of pentacene with N-sulfinylamides. These precursors may include a photopolymerizable group, which renders the pentacene precursor as a negative tone resist. The pentacene precursor may also include an acid-sensitive protecting group, which in the presence of a photoacid generator and upon exposure to UV light, is removed and the product becomes base soluble. Patterned pentacene thin films may be obtained by exposure to UV light through a mask and/or heating, and used as an active channel material for an organic field effect transistor.
REFERENCES:
patent: 6452207 (2002-09-01), Bao
patent: 2003/0144562 (2003-07-01), Afali-Ardakani et al.
Afzali, A.; Dimitrakopoulos, C.D.;Breen, T.L.; High-Performance, Solution Processes Organic Thin Film Transistors from a Novel Pentacene Precursor, J. American Chemical Society, Jul. 9, 2002; No. 124, pp. 8812-8813.
Herwig, P.T.; Müllen, K.; A Soluble Pentacene Precursor: Synthesys, Solid-State Conversion into Pentacene and Application in a Field-Effect Transistor; Advanced Materials, 1999, vol. 11, No. 6, pp. 480-483.
Ardakani Ali Afzali
Dimitrakopoulos Christos D.
Graham Teresita O.
Medeiros David R.
Cheung, Esq. Wan Yee
International Business Machines - Corporation
McGinn IP Law Group PLLC
Peralta Ginette
Pham Hoai
LandOfFree
Synthesis and application of photosensitive pentacene... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synthesis and application of photosensitive pentacene..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthesis and application of photosensitive pentacene... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3621987