Multiple color detection elevated pin photo diode active pixel sensor

DETAILED DESCRIPTION The present invention is a color detection active pixel sensor which provides efficient absorption of photons of light received by the color active detection pixel sensor while providing detection of the color of the received light.
The color detection is accomplished without color filters.
A first embodiment of this invention includes a color detection active pixel sensor.
The color detection active pixel sensor includes a substrate.
A diode is electrically connected to a first doped region of the substrate.
The diode conducts charge when the diode receives photons having a first range of wavelengths.
The substrate includes a second doped region.
The second doped region conducts charge when receiving photons having a second range of wavelengths.
The photons having the second range of wavelengths passing through the diode substantially undetected by the diode.
A second embodiment is similar to the first embodiment.
The second embodiment further includes a doped well within the substrate.
The doped doped well conducts charge when receiving photons having a third range of wavelengths.
The photons having the third range of wavelengths pass through the diode substantially undetected by the diode.
A third embodiment is similar to the first embodiment.
The third embodiment includes the first range of wavelengths corresponding approximately to the wavelength of blue light, the second range of wavelengths corresponding approximately to the wavelength of green light, and the third range of wavelengths corresponding approximately to the wavelengths of red light.
Other aspects and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.