Patent ID: 6379992
Filing Date: 2002-04-30
Classification: H01L

Abstract:
A method for fabricating an image sensor, comprising the steps of:(a) formulating devices on a substrate and forming a first and a second interlayer insulating layer and a first and a second metal line, wherein the devices include a photodiode; (b) forming an optical shielding layer on the second interlayer insulating layer; (c) using the optical shielding layer as a mask to perform a dry etching for the second inter layer insulating layer by a predetermined thickness, thereby producing a plurality of grooves; (d) filling the plurality of grooves to generate a color filter array on the second inter layer insulating layer; (e) utilizing the optical shielding layer as a polishing stop layer to perform a chemical mechanical polishing, thereby planarizing the color filter array; and (f) depositing a low temperature layer and a device protection layer sequentially.