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:
Sep. 08, 2015
Filed:
Oct. 02, 2014
Seiko Epson Corporation, Tokyo, JP;
Satoshi Takenaka, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A photoconductive antenna includes a semiconductor layer, and first and second electrodes. The semiconductor layer includes a first conductive region and a second conductive region constituting portions of a surface of the semiconductor layer disposed on a side to which the pulsed light is irradiated, and a third conductive region disposed between the first and second conductive regions. The first conductive region contains a first conductive type impurity and the second conductive region contains a second conductive type impurity. The third conductive region has a carrier density lower than a carrier density of the first conductive region or a carrier density of the second conductive region. The first electrode and the second electrode are disposed on the side to which the pulsed light is irradiated. The third conductive region is configured and arranged to be irradiated by the pulsed light.