CMOS IMAGE SENSOR HAVING TRENCH FILLED WITH SELECTIVE EPITAXIAL GROWN AND MANUFACTURING METHOD THEREOF
PURPOSE: A CMOS image sensor and a method for manufacturing the same are provided to reduce effectively defects in a trench by filling the trench with SEG(Selective Epitaxial Growth). CONSTITUTION: In a CMOS image sensor including doping regions for a photodiode and a transfer transistor, a trench i...
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Sprache: | eng ; kor |
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Zusammenfassung: | PURPOSE: A CMOS image sensor and a method for manufacturing the same are provided to reduce effectively defects in a trench by filling the trench with SEG(Selective Epitaxial Growth). CONSTITUTION: In a CMOS image sensor including doping regions for a photodiode and a transfer transistor, a trench is formed in a substrate(31). A silicon layer(32) is filled in the trench by SEG. The transfer transistor is formed on the substrate. The doping regions for the photodiode are formed in the substrate between the silicon layer and the transfer transistor. |
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