Invention Grant
US07964495B2 Method of manufacturing complementary metal oxide semiconductor image sensor
失效
互补金属氧化物半导体图像传感器的制造方法
- Patent Title: Method of manufacturing complementary metal oxide semiconductor image sensor
- Patent Title (中): 互补金属氧化物半导体图像传感器的制造方法
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Application No.: US11869498Application Date: 2007-10-09
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Publication No.: US07964495B2Publication Date: 2011-06-21
- Inventor: Han-Choon Lee
- Applicant: Han-Choon Lee
- Applicant Address: KR Seoul
- Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Sherr & Vaughn, PLLC
- Priority: KR10-2006-0107116 20061101
- Main IPC: H01L21/3213
- IPC: H01L21/3213

Abstract:
A method of manufacturing a CMOS image sensor manufacturing includes forming a plurality of metal pads over a semiconductor substrate; electrically connecting the metal pads to lower conductive film patterns of multi-layer metal wires using metal contacts; depositing an insulation film over the metal pads; patterning the insulation film to expose at least a portion of the upper surface of the metal pads; and removing impurities from an uppermost surface of the metal pads.
Public/Granted literature
- US20080102556A1 METHOD OF MANUFACTURING COMPLEMENTARY METAL OXIDE SEMICONDUCTOR IMAGE SENSOR Public/Granted day:2008-05-01
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