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:
Feb. 28, 2012
Filed:
Nov. 24, 2004
Mitsuaki Kageyama, Hamamatsu, JP;
Katsumi Shibayama, Hamamatsu, JP;
Seiichiro Mizuno, Hamamatsu, JP;
Helmut Teichmann, Zurich, CH;
Dietmar Hiller, Zurich, CH;
Ulrich Starker, Zurich, CH;
Mitsuaki Kageyama, Hamamatsu, JP;
Katsumi Shibayama, Hamamatsu, JP;
Seiichiro Mizuno, Hamamatsu, JP;
Helmut Teichmann, Zurich, CH;
Dietmar Hiller, Zurich, CH;
Ulrich Starker, Zurich, CH;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
A photodiode array, having a plurality of photodiodes(n-type channel regions), and a light entrance portion, formed of an opening that is used to make light to be detected by photodiodesenter, are provided in a substrateof a photodetectorA having an n-type substrateand a p-type epitaxial layer. Furthermore, a carrier capturing portion, for capturing carriers generated at a substrate portion near the light entrance portionand removes the captured carriers to the exterior via an electrode, is arranged from a layer portion of the epitaxial layerthat is positioned between the photodiode arrayand the light entrance portion. A photodetector of a simple arrangement, which, when applied to a spectrometer, enables the positioning precision of components of the spectrometer to be improved, and a spectrometer using this photodetector are thus realized.