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. 31, 2006
Filed:
Dec. 23, 2004
Guolin MA, Milpitas, CA (US);
Bahram Afshari, Los Altos, CA (US);
Jason Hartlove, Los Altos, CA (US);
Guolin Ma, Milpitas, CA (US);
Bahram Afshari, Los Altos, CA (US);
Jason Hartlove, Los Altos, CA (US);
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A wire-bondable image sensor having an integral contaminant shadowing reduction structure is described. In one aspect, an image sensor includes a substrate that has a side supporting at least one imaging area and at least one wirebonding area. Light detectors are constructed and arranged to receive light through the imaging area. Bond pads are exposed in the wirebonding area for connecting to respective bond wires. A contaminant shadowing reduction structure on the imaging area has an exposed contaminant displacement surface over the imaging area and separated from the imaging area by a distance of at least 300 μm. The contaminant shadowing reduction structure is substantially transparent to radiation within an operative wavelength range specified for the image sensor. Methods of making the above-mentioned image sensor also are described.