Patent ID: 8383444
Filing Date: 2013-02-26
Classification: H01L

Abstract:
1. A method for determining a color using a CMOS image sensor, wherein the CMOS image sensor includes an n-type silicon substrate and a p-type epitaxy layer, the p-type epitaxy layer overlaying the n-type substrate, the method comprising: applying a first voltage on the n-type substrate; obtaining a first output, the first output being associated with the first voltage; applying a second voltage on the n-type substrate; obtaining a second output, the second output being associated with the second voltage; applying a third voltage on the n-type substrate; obtaining a third output, the third output being associated with the third voltage; providing a plurality of weighting factors; and determining the color based on the plurality of weighting factors, the first output, the second output, and the third output.