What is CMOS image sensor?
An image sensor made with a CMOS process that has an amplifier in each pixel. It is low-power, can integrate peripheral circuits, and dominates smartphone cameras and more.
CMOS image sensor in the explanations
A CMOS image sensor converts that charge to a voltage with in-pixel transistors for readout.
In each pixel of a CMOS image sensor, which element convert…Doping and even material can be chosen independently of the substrate, and the layer has fewer defects than CZ wafers, so epitaxy is used for lightly doped drift layers in power devices, CMOS image sensor substrates, SiGe source/drains in transistors, and the multilayer stacks of LEDs and lasers.
Which correctly describes epitaxial growth?
Questions that mention CMOS image sensor (8)
- In each pixel of a CMOS image sensor, which element converts light into charge?
- What is the main advantage of a backside-illuminated (BSI) CMOS image sensor?
- In the buried (pinned) photodiode of a CMOS image sensor, what is the main purpose of the heavily doped p+ layer at the surface?
- What is the purpose of correlated double sampling (CDS) used in CMOS image sensor readout?
- In the typical four-transistor pixel of a CMOS image sensor, which transistor moves the charge from the photodiode to the floating diffusion?
- Which correctly describes the "conversion gain" of a CMOS image sensor?
- In a CMOS image sensor, what problem occurs when charge transfer from the photodiode to the floating diffusion is incomplete?
- Which correctly describes epitaxial growth?
Related terms
Photodiode Correlated double sampling (CDS) Quantum efficiency Zener diode Backside illumination (BSI) Interface states Dark current Pinned photodiode Epitaxial growth Czochralski (CZ) method