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METHOD OF MANUFACTURING CMOS IMAGE SENSOR

申请公布号:US2008160666(A1)

申请号:US20070948808

申请日期:2007.11.30

申请公布日期:2008.07.03

申请人:
DONGBU HITEK CO., LTD.

发明人:BANG SUN KYUNG

分类号:H01L31/18

主分类号:H01L31/18

摘要:A method for manufacturing the CMOS image sensor comprising forming an epitaxial layer provided with a plurality of photo diodes on a semiconductor substrate, coating a first photo resist on the epitaxial layer and performing a patterning process on the first photo resist using a predetermined reference value in order to form a first photo resist pattern, coating a second photo resist on the epitaxial layer and first photo resist pattern and performing a patterning process for the second photo resist in order to form the second photo resist pattern on the first photo resist pattern; and forming a well area of a pixel area by performing a dopant implantation process using a mask pattern including the first photo resist pattern and the second photo resist pattern.

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