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. 01, 2013
Filed:
Aug. 18, 2006
Willem Hendrik Maes, Lommel, BE;
Alouisius Wilhelmus Marinus Korthout, JP Drunen, NL;
Willem Hendrik Maes, Lommel, BE;
Alouisius Wilhelmus Marinus Korthout, JP Drunen, NL;
Teledyne Dalsa B.V., Thousand Oaks, CA (US);
Abstract
The invention relates to a semiconductor device with a semiconductor body comprising a CMOS image sensor with a plurality of active pixels arranged in rows and columns each pixel comprising a pinned photodiode and a plurality of transistors for operating the pixel in the image forming process and including reset means. According to the invention the semiconductor device comprises also precharge means by which the photodiode can be precharged by a fixed amount of charge carriers after it has been reset by the reset means. In this way the sensors has a highly linear response, in particular at low light/radiation level, and a very low noise. The sensor is very suitable for X-ray/medical applications.