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. 19, 2009
Filed:
Jun. 09, 2005
Bryan G. Cole, Meridian, ID (US);
Bryan G. Cole, Meridian, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
Methods and structures to reduce the occurrence of crosstalk and pixel noise in solid state imager arrays. In an exemplary embodiment, a section of a layer patterned to form polysilicon buried-contacts in the pixel structure is also patterned to be disposed over the active, photosensor portion of the pixel. The section of the buried-contact layer covering the photosensor portion of the pixel serves to filter the light striking the buried-contact layer before the light strikes the photosensor. The polysilicon light filter reduces the amount of stray light entering from the adjacent pixels without adding significant processing complexity.