Patent ID: 7384665

Claim:
A method of fabricating a light detecting structure comprising: fabricating a first color filter over a first photodetector on a substrate to form a first filter-detector combination; placing the substrate including the first filter-detector combination in a chamber and exposing the first filter-detector combination to a silane compound in vapor form to form a first transparent protective layer being a silane coating over the first filter-detector combination; and then fabricating a second color filter over a second photodetector adjacent to the first photodetector on the substrate to form a second filter-detector combination, said second color filter designed to absorb light of a different wavelength than said first color filter; and then exposing the second color filter to a silane compound in vapor form to form a second transparent protective layer being a silane coating wherein the first and second protective layers prevent bleeding of material between the first and second filters; and removing the coated first and second filter-detector combinations from the chamber, wherein each of the first and second protective layers is 2-3 Angstroms thick.