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:
May. 15, 2007
Filed:
Nov. 21, 2003
Minoru Niigaki, Hamamatsu, JP;
Yasufumi Takagi, Hamamatsu, JP;
Kazutoshi Nakajima, Hamamatsu, JP;
Yoshitaka Suzuki, Hamamatsu, JP;
Nobuharu Suzuki, Hamamatsu, JP;
Minoru Niigaki, Hamamatsu, JP;
Yasufumi Takagi, Hamamatsu, JP;
Kazutoshi Nakajima, Hamamatsu, JP;
Yoshitaka Suzuki, Hamamatsu, JP;
Nobuharu Suzuki, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
A UV sensor () includes a container () in which the upper end opening of a metal side tube () is sealed with a front plate () composed of borosilicate glass as an incident light window and the lower end opening is sealed with a base plate (). The front plate () serving as an incident light window constitutes part of the wall of container () by sealing the upper end opening of the metal side tube (). A pin-type photodiode () is disposed inside the container (). The pin-type photodiode () comprises a photoabsorption layer () formed from InGaN (0<x<1) between an n-type contact layer () and a p-type contact layer ().