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.
Patent No.:
Date of Patent:
Oct. 02, 2007
Filed:
Dec. 06, 2005
Applicants:
Hiroyuki Iechi, Kanagawa, JP;
Kazuhiro Kudoh, Chiba, JP;
Inventors:
Hiroyuki Iechi, Kanagawa, JP;
Kazuhiro Kudoh, Chiba, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vertical organic transistor comprises a substrate, a first electrode positioned over the substrate, a first semiconductor layer formed over the first electrode, a second electrode formed on the first semiconductor layer and shaped into a prescribed pattern, a second semiconductor layer formed over the second electrode and the first semiconductor layer, and a third electrode formed over the second semiconductor layer. The first semiconductor layer and the second semiconductor layer are made of different semiconductor materials.