CMOS Image Sensor Design Methodology Applied to Optical Tomography and Neural Networks

Imaging sensors are remarkable devices which are able to capture moments and present them in a form available to us for years to come. With the use of material properties and photon particles, charges can be produced which, in combination with electric circuitry, transform into information understandable to the human eye and eventually the brain...

Characterization of CMOS Image Sensor

CMOS image sensors comprise of two processes: designing and measurement/testing. They are designed with certain characteristic performance and it is important to measure these characteristics accurately. CMOS image sensor converts light information into digital information which can be reproduced in the form of an image. Conventional 4T pixel...

A 1-Mega Pixels HDR and UV Sensitive Image Sensor With Interleaved 14-bit 64Ms/s SAR ADC

This thesis presents a 1-Mega pixels high-dynamic range and UV sensitive image sensor in 0.18 µm technology with 14-bit interleaved 64Ms/s SAR ADC. It can achieve 64 fps and 101 dB dynamic range. The pixel array contains three kinds of pixel: UV pixel, visible pixel and low blue pixel. Those three kinds of pixel form a special 4×4 kernel to meet...

Integrating a Temperature Sensor into a CMOS Image Sensor

Dark current noise in image sensors is highly sensitive to temperature, and a difference in temperature in image sensors can be seen in the image as a non-uniform noise source. Many CMOS image sensors are integrated in mobile devices and lack a physical shutter to generate dark frame subtraction to compensate for dark current noise. In this...

The Design of a Stitched, High-dynamic Range CMOS Particle Sensor

This thesis presents the design of a stitched, high-dynamic range particle sensor in 0.18 µm technology, which has three different configurations of 4096*4096 (4K), 8192*8192 (8K) and 12288*12288 (12K) pixels. It can be operated at 65 MHz with a target of 5 e- RMS noise and 92 dB dynamic range. The architecture of the whole sensor is explained...

The design of a 16*16 pixels CMOS image sensor with 0.5 e- RMS noise

Low noise image sensors can see images by just a few photons have a wide application in both the scientific and economic fields. This thesis presents a design of a 16*16 pixels CMOS image sensor with a target noise level in the order of 0.5 electrons RMS in 0.18?m technology, which has a potential to catch a large amount of low light imaging...

The design of a global shutter CMOS image sensor in 110nm technology

The goal of this work described in this thesis is to design a CMOS image sensor chip, implementing pixels with a 4.8?m pitch with a peripheral readout circuitry in a 110nm CMOS process. The architecture of the CMOS image sensor is presented, with a functional illustration for every block. The 8T global shutter pixel noise, circuit and layout are...

The Desigh of a High Dynamic Range CMOS Image Sensor in 110nm Technology

This thesis presents the design of a dual-transfer-gate high dynamic range CMOS image sensor. Several methods that can be applied to extend the dynamic range have been developed. However, all of these solutions have undesired problems, such as nonlinearity response, higher dark current shot noise and discontinues signal-to-noise ratio. In this...

Pixel ADC Design for Hybrid CMOS Image Sensors

This thesis presents the design of a pixel level analog-to-digital converter (ADC) circuit for hybrid CMOS image sensors. There are several methods to increase the dynamic range of the sensor through the readout algorithm. The multiple sampling method can increase the dynamic range (DR) without a loss of signal-to-noise ratio (SNR). The idea is...