Patent ID: 7456044
Filing Date: 2008-11-25
Classification: H01L

Abstract:
1. A method of manufacturing an image sensor, comprising: forming an interlayer dielectric layer on a semiconductor substrate having photodiodes; forming color filter layers on the interlayer dielectric layer; forming a planarization layer on the color filter layers; coating photoresist on the planarization layer; selectively patterning the photoresist coated on the planarization layer; aligning a mold having a lens-shaped pattern on the semiconductor substrate having patterned photoresist; pressing the mold and the semiconductor substrate closely to each other such that the pattern formed in the mold is transferred onto the patterned photoresist; and separating the mold from the semiconductor substrate thereby forming micro-lenses, wherein the mold is aligned such that the lens-shaped pattern formed in the mold is positioned on the patterned photoresist.