Band-pass filter for stacked sensor
Abstract:
In some embodiments, the present disclosure relates to a three-dimensional integrated chip. The three-dimensional integrated chip includes a first integrated chip (IC) die and a second IC die. The first IC die has a first image sensor element configured to generate electrical signals from electromagnetic radiation within a first range of wavelengths. The second IC die has a second image sensor element configured to generate electrical signals from electromagnetic radiation within a second range of wavelengths that is different than the first range of wavelengths. A first band-pass filter is arranged between the first IC die and the second IC die and is configured to reflect electromagnetic radiation that is within the first range of wavelengths.
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