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The onsemi CMOS Image Sensor Wafer consists of the following layers:
• Microlens Array—Small lenses that collect and focus light onto light-sensitive areas of the sensor.
• Color Filter Array (CFA)—Mosaic of tiny color filters placed over the pixel sensors of an image sensor to capture color information.
• Photodiode—Semiconductor that converts light into an electrical current.
• Pixel Transistors—Transistors provide gain or bugger of electrical charge from the photodiode.
• Bond Layer—Connects the Active Pixel Array to the ASIC layer
• ASIC—Logic layer for features such as error correction, memory for multi-exposures, cores for cybersecurity, hardware blocks for functional safety, and high-speed I/O.
CMOS Image Sensor Layers at a Glance
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CMOS digital image sensorCMOSdigital image sensorCMOS technologyCMOS image sensorCMOS sensorimage sensor techonologyMicrolens arrayimage sensoractive- pixel arrayHDR image sensorfront view camerafront view ADASsurround sending cameraautomotive image sensorhigh dynamic range image sensorrear view cameracamera monitoring systemsurround viewrolling shutter CMOSautomotive grade pixelview fusionmachine vision