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:
Jul. 22, 2003
Filed:
Mar. 12, 2002
Josef Lauter, Geilenkirchen, DE;
Armin Kemna, Duisburg, DE;
Werner Brockherde, Duisburg, DE;
Ralf Hausschild, Solingen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a light-sensitive semiconductor component that consists of pixels ( ), wherein n doped dot zones ( ) are provided, in a preferably hexagonal pattern, on the surface of a p doped channel region, the dot zones ( ) of a pixel ( ) being electrically connected to one another by means of leads ( ) and to a collecting lead ( ). The dot zones ( ) form parallel connected semiconductor diodes whereby minority charge carriers that are generated by the incidence of light in the channel region can be detected after having traveled to the dot zones ( ) by diffusion. The described arrangement enables a high sensitivity to be achieved throughout the channel region and also a minimum capacitance of the semiconductor constructed by means of the CMOS technique. Diffusion of charge carriers out of a pixel is prevented by a guard ring ( ) of an opposed type of doping.