Patent ID: 7262448
Filing Date: 2007-08-28
Classification: H01L

Abstract:
1. A CMOS image sensor comprising: a lower layer formed of a photodiode, metal circuits, and insulating interlayers for insulating the metal circuits from one another; a color filter array of R, G, and B formed on the lower layer; an overcoat layer formed on the color filter array; a micro-lens formed on the overcoat layer; a minute lens array having a plurality of minute lenses, on the photodiode, formed between the lower layer and the color filter array, each minute lens having a larger curvature than that of the micro-lens a protective layer formed between the lower layer and the color filter array, so as to protect the photodiode and the metal circuits; and a first planarization layer formed on the protective layer, to have the minute lens array thereon.