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:
Jan. 15, 2019
Filed:
Feb. 14, 2018
Applicant:
Micron Technology, Inc., Boise, ID (US);
Inventor:
Salman Akram, Boise, ID (US);
Assignee:
Micron Technology, Inc., Boise, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01); H01L 31/0352 (2006.01); H01L 31/0216 (2014.01); H01L 31/028 (2006.01); H01L 31/0376 (2006.01); H01L 31/18 (2006.01); H01L 31/0224 (2006.01); H01L 31/0288 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14607 (2013.01); H01L 27/146 (2013.01); H01L 27/14601 (2013.01); H01L 27/14603 (2013.01); H01L 27/14605 (2013.01); H01L 27/14621 (2013.01); H01L 27/14627 (2013.01); H01L 27/14632 (2013.01); H01L 27/14643 (2013.01); H01L 27/14645 (2013.01); H01L 27/14647 (2013.01); H01L 27/14685 (2013.01); H01L 27/14687 (2013.01); H01L 27/14689 (2013.01); H01L 27/14692 (2013.01); H01L 31/028 (2013.01); H01L 31/0288 (2013.01); H01L 31/02162 (2013.01); H01L 31/022408 (2013.01); H01L 31/0352 (2013.01); H01L 31/03762 (2013.01); H01L 31/035281 (2013.01); H01L 31/1804 (2013.01);
Abstract
An elevated photosensor for image sensors and methods of forming the photosensor. The photosensor may have light sensors having indentation features including, but not limited to, v-shaped, u-shaped, or other shaped features. Light sensors having such an indentation feature can redirect incident light that is not absorbed by one portion of the photosensor to another portion of the photosensor for additional absorption. In addition, the elevated photosensors reduce the size of the pixel cells while reducing leakage, image lag, and barrier problems.