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US 7,442,572 B2Granted
CMOS image sensor and method for manufacturing the same
AssigneeDongbu Electronic Co., Ltd.
InventorHyun Joon Sohn
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Abstract
A CMOS image sensor and a method for manufacturing the same improves photosensitivity and prevent loss of light by forming a photo-sensing unit under a color filter. The CMOS image sensor may include a plurality of transistors formed on a semiconductor substrate, a metal line formed over the plurality of transistors for electrically connecting the plurality of transistors, and a plurality of photodiodes electrically connected with the plurality of transistors and formed over the metal line.
Claims5
A method for manufacturing a CMOS image sensor comprising:
- forming a plurality of transistors on a semiconductor substrate;
- forming a metal line over the plurality of transistors for electrically connecting the plurality of transistors;
- forming a plurality of photodiodes over the metal line;
- forming a color filter on the plurality of photodiodes;
- forming a planarization layer on the color filter;
- and
- forming a micro-lens on the planarization layer.
4 more elements
Dependencies are inferred from the claim text.