A new guard ring for radiation induced noise reduction in photodiodes implemented in 0.18 μm CMOS technology
Sign Up to like & getrecommendations! Published in 2017 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-017-1125-1
Abstract: A new p-type guard ring by introduction of a thin p-type layer which encloses shallow trench isolation (STI) layer is utilized to reduce radiation induced noise in photodiodes implemented in 0.18 $$\upmu$$μm standard complementary-metal-oxide-semiconductor (CMOS) technology.… read more here.
Keywords: guard ring; radiation induced; photodiodes implemented; technology ... See more keywords
Study on the Performance of a Planar CdZnTe Detector with Guard-Ring
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-020-08180-0
Abstract: The guard-ring of a CdZnTe (CZT) detector can reduce surface leakage current and improve charge collection efficiency. In this paper, COMSOL simulation software is adopted to evaluate the influence of the weighting potential and electric… read more here.
Keywords: guard ring; czt; detector guard; cdznte ... See more keywords
Vertical GaN Schottky barrier diodes with area-selectively deposited p-NiO guard ring termination structure
Sign Up to like & getrecommendations! Published in 2021 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2021.106820
Abstract: Abstract In this study, the effect of p-NiO guard ring length on the properties of vertical GaN Schottky barrier diode was investigated extensively. The forward biased current-voltage characteristics of all diodes with different guard ring… read more here.
Keywords: gan schottky; nio guard; guard ring; schottky barrier ... See more keywords
Optimization of Guard Ring Structures for Superior Dark Current Reduction and Improved Quantum Efficiency in InGaAs/InP APDs
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Journal of the Electron Devices Society"
DOI: 10.1109/jeds.2025.3583669
Abstract: Avalanche photodiodes (APDs) based on InGaAs/InP are pivotal for applications in low-light detection, yet their performance is often hindered by edge breakdown and high dark currents. This study systematically optimizes guard ring structures to address… read more here.
Keywords: ring structures; dark current; ingaas inp; guard ring ... See more keywords
Guard Ring Designs on Photovoltaic Energy Harvesting Silicon LSIs
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Journal of Photovoltaics"
DOI: 10.1109/jphotov.2025.3554315
Abstract: This study explores strategies for safeguarding complementary metal–oxide–semiconductor (CMOS) field-effect-transistors (FETs) and PN-diode against bulk carrier contamination for energy harvesting applications. Energy harvesting processes can generate excessive carriers within the bulk region, which can penetrate… read more here.
Keywords: designs photovoltaic; ring designs; energy harvesting; cell ... See more keywords
Edge Breakdown Suppression in Avalanche Photodiodes Using an Attached Step Guard Ring
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Electron Devices"
DOI: 10.1109/ted.2024.3378222
Abstract: This study aims to investigate the effectiveness of different guard ring (GR) structures in suppressing edge breakdown issues in InGaAs/InP planar avalanche photodiodes (APDs) with a thicker multiplication layer design through highly realistic simulations. Based… read more here.
Keywords: attached step; guard ring; avalanche photodiodes; edge breakdown ... See more keywords
Experimental and simulation study of fill-factor enhancement using a virtual guard ring in n+/p-well CMOS single-photon avalanche diodes
Sign Up to like & getrecommendations! Published in 2021 at "Optical Engineering"
DOI: 10.1117/1.oe.60.6.067105
Abstract: Abstract. The use of a physical guard ring in CMOS single-photon avalanche diodes (SPADs) based on n + /(deep)p-well and p + /(deep)n-well structures is a common solution to control the electric field of the SPADs periphery and prevent… read more here.
Keywords: virtual guard; guard ring; fill factor; cmos single ... See more keywords
Guard Ring Design to Prevent Edge Breakdown in Double-Diffused Planar InGaAs/InP Avalanche Photodiodes
Sign Up to like & getrecommendations! Published in 2023 at "Materials"
DOI: 10.3390/ma16041667
Abstract: We report on the design of an attached guard ring (AGR) and a floating guard ring (FGR) in a planar separate absorption, grading, charge, and multiplication In0.53Ga0.47As/InP avalanche photodiode to prevent premature edge breakdowns. The… read more here.
Keywords: design; inp avalanche; prevent; guard ring ... See more keywords
Simulation of Silicon Surface Barrier Detector with PN Junction Guard Rings to Improve the Breakdown Voltage
Sign Up to like & getrecommendations! Published in 2022 at "Micromachines"
DOI: 10.3390/mi13111811
Abstract: Silicon surface barrier detectors (SSBDs) are normally used to detect high-energy particles due to their excellent properties. For better charge collection efficiency (CCE), the SSBD device should be operated at higher reverse voltages, but this… read more here.
Keywords: junction guard; guard; guard ring; breakdown voltage ... See more keywords