Jeffrey G Mackey

US Patent:

20120273906, Nov 1, 2012

Filed:

Nov 11, 2011

Appl. No.:

13/294951

Inventors:

Jeffrey Mackey - Danville CA, US
Ulrich Boettiger - Garden City ID, US
Mattia Cichocki - Rome, IT
Loriston Ford - Nampa ID, US
Rick Holscher - Boise ID, US
Mitchell J. Mooney - Star ID, US
Brian Vaartstra - Nampa ID, US

International Classification:

H01L 31/0232
H01L 31/18

US Classification:

257432, 438 70, 257E31127

Abstract:

Pixel arrays are provided for image sensors that have barriers between color filters in an array of color filters. Color filter barriers may be formed from a transparent or semi-transparent material. Color filter barriers may be formed from a low refractive index material. Color filters may be etched and color filter barrier material may be formed in the etched regions of the color filters. If desired, a layer of color filter barrier material may be etched to form open regions and color filter material may be formed in the open regions of the color filter barrier material. An image sensor may be a front-side illuminated image sensor or a back-side illuminated image sensor.

US Patent:

20150054103, Feb 26, 2015

Filed:

Feb 20, 2014

Appl. No.:

14/185816

Inventors:

- George Town, KY
Jeffrey Mackey - Danville CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

H01L 31/0216
H01L 27/146

US Classification:

257432

Abstract:

An imaging system may include a camera module with an image sensor having an array of image sensor pixels. The image sensor may include a substrate having an array of photodiodes, an array of microlenses formed over the array of photodiodes, and an array of color filter elements interposed between the array of microlenses and the array of photodiodes. A grid of baffles may be formed over the array of image pixels and may be configured to block stray light from striking the image pixels. The baffles may extend above the microlens array and may be tilted at an angle with respect to the optical axis of the image sensor. The angle at which each baffle is tilted may be proportional to the chief ray angle of an associated microlens. Baffles may be formed from a light-blocking material such as metal, photoresist, carbon, graphite, or other suitable material.

US Patent:

20140313379, Oct 23, 2014

Filed:

Aug 28, 2013

Appl. No.:

14/012835

Inventors:

- George Town, KY
Jeffrey Mackey - Danville CA, US

Assignee:

Aptina Imaging Corporation - George Town

International Classification:

H04N 9/64
H01L 27/146

US Classification:

348279, 348273, 438 70

Abstract:

An imaging system may include a camera module with an image sensor having an array of image sensor pixels. The image sensor may include a substrate having an array of photodiodes, an array of microlenses formed over the array of photodiodes, and an array of color filter elements interposed between the array of microlenses and the array of photodiodes. The color filter elements may be separated from each other by color filter barriers. Each color filter barrier may include an upper portion formed from dielectric material and a lower portion formed from metal. The metal portion of each color filter barrier may form a crosstalk reduction structure that prevents stray light from passing from one pixel to an adjacent pixel. The color filter barriers may have a grid shape with an array of openings. The color filter elements may be deposited in the openings.