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:
Dec. 02, 2014
Filed:
Feb. 08, 2010
Keiichi Ota, Hamamatsu, JP;
Sadaharu Takimoto, Hamamatsu, JP;
Hiroshi Watanabe, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
In an image sensoraccording to an embodiment of the present invention, a plurality of embedded photodiodes PD(m,n) are arrayed. Each of the embedded photodiodes PD(m,n) comprises a first semiconductor regionof a first conductivity type; a second semiconductor regionformed on the first semiconductor regionand having a low concentration of an impurity of a second conductivity type; a third semiconductor regionof the first conductivity type formed on the second semiconductor regionso as to cover a surface of the second semiconductor region; and a fourth semiconductor regionof the second conductivity type for extraction of charge from the second semiconductor region; the fourth semiconductor regioncomprises a plurality of fourth semiconductor regionsarranged as separated, on the second semiconductor region