Patent ID: 7312093
Filing Date: 2007-12-25
Classification: H01L

Abstract:
1. A method for fabricating an image sensor, comprising: forming a first photodiode receiving a first color, a second photodiode formed apart from the first photodiode and receiving a second color with a wavelength longer than the first color and a third photodiode formed apart form the first photodiode and the second photodiode and receiving a third color with a wavelength longer than the second color; forming a passivation layer on a substrate structure in which the first photodiode to the third photodiode are formed; and selectively etching the passivation layer such that the passivation layer has different regional thicknesses whose magnitude increase in order of a first region of the passivation layer corresponding to a first color region, a second region of the passivation layer corresponding to a second color region and a third region of the passivation layer corresponding to a third color region.