All Silicon Microdisplay Fabricated Utilizing 0.18 μm CMOS-IC With Monolithic Integration

Li, Zepeng; Zhu, Ke; Huang, Xingfa; Zhao, Jianming; Xu, Kun

doi:10.1109/jphot.2022.3160226

Cited by 18 publications

(6 citation statements)

References 20 publications

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“…More recently, SPAD devices with low breakdown voltage have been developed for consumer products where low power consumption is crucial [22]. The low breakdown voltage SPAD not only results in low power consumption but also reduces breakdown emissions, minimizing the crosstalk effect in array image applications [23]. Additionally, the avalanche emissions can be utilized for high-performance CMOS microdisplay [23].…”

Section: Introductionmentioning

confidence: 99%

“…The low breakdown voltage SPAD not only results in low power consumption but also reduces breakdown emissions, minimizing the crosstalk effect in array image applications [23]. Additionally, the avalanche emissions can be utilized for high-performance CMOS microdisplay [23]. In optics, diffraction structures with pyramid surfaces, microlenses, and metasurfaces are typically employed [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

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Designing a Sub-20V Breakdown Voltage SPAD With Standard CMOS Technology and n/p-well Structure

Wu,

Liu

2024

IEEE Photonics J.

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We have proposed a structural design for a single photon avalanche diode with a low breakdown voltage. This diode is fabricated using Taiwan Semiconductor Manufacturing Company (TSMC) 0.18 µm HV CMOS technology, and it can maintain a high operating excess voltage in an n-on-p design without requiring any additional customized well layers. The n-on-p type device is particularly advantageous for a 3D-stacked backside illuminated structure and offers excellent photon detection capabilities at longer wavelengths. By incorporating a high doping concentration PDD well layer, we can significantly increase the excess bias, resulting in enhanced photon detection probability in the near-infrared wavelength range, all while maintaining a lower voltage due to a reduction in breakdown voltage. This design also leads to power consumption savings. As a result, our designed device is well-suited for consumer applications such as 3D image rendering and Lidar technology.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Designing a Sub-20V Breakdown Voltage SPAD With Standard CMOS Technology and n/p-well Structure

Wu,

Liu

2024

IEEE Photonics J.

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“…Although these modalities offer undeniable utility, they are not devoid of limitations. Even with recent progress in X-ray detection [13,14], the ionizing radiation inherent to X-ray imaging engenders challenges related to repeated exposure. Similarly, the utilization of PET and MRI is impeded by the considerable scale of the necessary apparatus, thereby hindering seamless bedside deployment.…”

Section: Introductionmentioning

confidence: 99%

Near-Infrared Transillumination for Macroscopic Functional Imaging of Animal Bodies

Shimizu

2023

Biology

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The classical transillumination technique has been revitalized through recent advancements in optical technology, enhancing its applicability in the realm of biomedical research. With a new perspective on near-axis scattered light, we have harnessed near-infrared (NIR) light to visualize intricate internal light-absorbing structures within animal bodies. By leveraging the principle of differentiation, we have extended the applicability of the Beer–Lambert law even in cases of scattering-dominant media, such as animal body tissues. This approach facilitates the visualization of dynamic physiological changes occurring within animal bodies, thereby enabling noninvasive, real-time imaging of macroscopic functionality in vivo. An important challenge inherent to transillumination imaging lies in the image blur caused by pronounced light scattering within body tissues. By extracting near-axis scattered components from the predominant diffusely scattered light, we have achieved cross-sectional imaging of animal bodies. Furthermore, we have introduced software-based techniques encompassing deconvolution using the point spread function and the application of deep learning principles to counteract the scattering effect. Finally, transillumination imaging has been elevated from two-dimensional to three-dimensional imaging. The effectiveness and applicability of these proposed techniques have been validated through comprehensive simulations and experiments involving human and animal subjects. As demonstrated through these studies, transillumination imaging coupled with emerging technologies offers a promising avenue for future biomedical applications.

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“…Image sensors (cameras) are an attractive choice because they provide a large amount of environmental information in pixels. This technology is constantly evolving [8,9] and, today, it is possible to have high-resolution cameras with high sampling rates [10][11][12]. Higher resolution cameras facilitate the detection task and allow the system to detect distant pedestrians, as they will be encoded in a greater number of pixels.…”

Section: Introductionmentioning

confidence: 99%

FPGA-Based Pedestrian Detection for Collision Prediction System

Cambuim

Barros

2022

Sensors

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Pedestrian detection (PD) systems capable of locating pedestrians over large distances and locating them faster are needed in Pedestrian Collision Prediction (PCP) systems to increase the decision-making distance. This paper proposes a performance-optimized FPGA implementation of a HOG-SVM-based PD system with support for image pyramids and detection windows of different sizes to locate near and far pedestrians. This work proposes a hardware architecture that can process one pixel per clock cycle by exploring data and temporal parallelism using techniques such as pipeline and spatial division of data between parallel processing units. The proposed architecture for the PD module was validated in FPGA and integrated with the stereo semi-global matching (SGM) module, also prototyped in FPGA. Processing two windows of different dimensions permitted a reduction in miss rate of at least 6% compared to a uniquely sized window detector. The performances achieved by the PD system and the PCP system in HD resolution were 100 and 66.2 frames per second (FPS), respectively. The performance improvement achieved by the PCP system with the addition of our PD module permitted an increase in decision-making distance of 3.3 m compared to a PCP system that processes at 30 FPS.

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All Silicon Microdisplay Fabricated Utilizing 0.18 μm CMOS-IC With Monolithic Integration

Cited by 18 publications

References 20 publications

Designing a Sub-20V Breakdown Voltage SPAD With Standard CMOS Technology and n/p-well Structure

Designing a Sub-20V Breakdown Voltage SPAD With Standard CMOS Technology and n/p-well Structure

Near-Infrared Transillumination for Macroscopic Functional Imaging of Animal Bodies

FPGA-Based Pedestrian Detection for Collision Prediction System

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