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:
May. 06, 2014
Filed:
Mar. 13, 2012
James W. Adkisson, Jericho, VT (US);
John J. Ellis-monaghan, Grand Isle, VT (US);
Jeffrey P. Gambino, Westford, VT (US);
Charles F. Musante, South Burlington, VT (US);
James W. Adkisson, Jericho, VT (US);
John J. Ellis-Monaghan, Grand Isle, VT (US);
Jeffrey P. Gambino, Westford, VT (US);
Charles F. Musante, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Optical structures having an array of protuberances between two layers having different refractive indices are provided. The array of protuberances has vertical and lateral dimensions less than the wavelength range of lights detectable by a photodiode of a CMOS image sensor. The array of protuberances provides high transmission of light with little reflection. The array of protuberances may be provided over a photodiode, in a back-end-of-line interconnect structure, over a lens for a photodiode, on a backside of a photodiode, or on a window of a chip package.