The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 18, 2011

Filed:

Mar. 19, 2007
Applicants:

Yuji Suwa, Kokubunji, JP;

Tomihiro Hashizume, Hatoyama, JP;

Masaaki Fujimori, Hatoyama, JP;

Inventors:

Yuji Suwa, Kokubunji, JP;

Tomihiro Hashizume, Hatoyama, JP;

Masaaki Fujimori, Hatoyama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01); H01L 35/24 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An organic transistor is formed with a low material cost and low manufacturing cost while still providing high performance and a low contact resistance with an organic semiconductor of the transistor. The organic transistor has electrodes whose bodies are formed mainly of an inexpensive first metal and whose surfaces are formed of a second metal that is expensive but provides high performance properties. To obtain stability of this structure with a low cost, a property of the second metal is used in which the second metal is easily segregated on the surface of the first metal in an alloy of the first metal and the second metal.


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