Semiconductor device manufacturing: process – Having organic semiconductive component
Reexamination Certificate
2005-03-29
2008-12-30
Wu, Shean C (Department: 1795)
Semiconductor device manufacturing: process
Having organic semiconductive component
C257S040000, C428S001100, C428S001200, C428S001300, C428S001400, C252S299010, C252S299300
Reexamination Certificate
active
07470561
ABSTRACT:
The main object of the invention is to provide an organic semiconductor material whose material designing is easy, and is capable to secure satisfying purity, so that it can be easily used industrially. And further, also to provide an organic semiconductor structure and an organic semiconductor device using the organic semiconductor material.To achieve the object, the present invention provides an organic semiconductor material having a structural formula of the following chemical formula 1:in-line-formulae description="In-line Formulae" end="lead"?-((A)-(B))n- 1in-line-formulae description="In-line Formulae" end="tail"?wherein A is a mesogen exhibiting liquid crystallinity; has a skeletal structure comprising a π-electron ring selected from a group consisting of L-unit of 6π-electron system ring, M-unit of 8π-electron system ring, N-unit of 10π-electron system ring, O-unit of 12π-electron system ring, P-unit of 14π-electron system ring, Q-unit of 16π-electron system ring, R-unit of 18π-electron system ring, S-unit of 20 π-electron system ring, T-unit of 22π-electron system ring, U-unit of 24π-electron system ring and V-unit of 26π-electron system ring (whereupon L, M, N, O, P, Q, R, S, T, U and V each represent an integer of 0 to 12, and L+M+N+O+P+Q+R+S+T+U+V is 1 to 12); B has a chain structure with high flexibility; and n is about 3 to about 3000.
REFERENCES:
patent: 6511612 (2003-01-01), Hall et al.
patent: 7102154 (2006-09-01), Hanna et al.
patent: 7259390 (2007-08-01), Hanna et al.
patent: 2004/0248338 (2004-12-01), Sirringhaus et al.
patent: 2005/0127354 (2005-06-01), Hanna et al.
patent: 1489141 (2004-12-01), None
patent: WO 03/007397 (2003-01-01), None
patent: WO 03080732 (2003-10-01), None
Y.-Y. Lin, et al., “Stacked Pentacene Layer Organic Thin-Film Transistors with Improved Characteristics”, IEEE Electron Device Lett., Dec. 1997, pp. 606-608, vol. 18, No. 12.
D. Adam, et al., “Transient Photoconductivity in a Discotic Liquid Crystal”, Phys. Rev. Lett., Jan. 1993, pp. 457-460, vol. 70, No. 4.
M. Funahashi, et al., “Photoconductive Behavior in Smectic A Phase of 2-(4′-Heptyloxyphenyl)-6-Dodecylthiobenzothiazole”, Jpn. J. Appl. Phys., Jun. 1996, pp. 703-705, vol. 35, Pt. 2, No. 6A.
M. Redecker, et al; “Mobility enhancement through homogeneous nematic alignment of a liquid-crystalline polyfluorene” Applied Physics Letters, vol. 74, No. 10, Mar. 8, 1999, pp. 1400-1402.
Hanna Jun-ichi
Maeda Hiroki
Sugawara Shigeru
Tomino Ken
Dai Nippon Printing Co. Ltd.
Ladas & Parry LLP
Wu Shean C
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