scholarly journals Investigation of random telegraph signal in two junction layouts of proton irradiated CMOS SPADs

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
F. Di Capua ◽  
M. Campajola ◽  
D. Fiore ◽  
L. Gasparini ◽  
E. Sarnelli ◽  
...  

AbstractThis paper focuses on the understanding of the Random Telegraph Signal (RTS) in Single-Photon Avalanche Diodes (SPAD). We studied the RTS of two different SPAD layouts, designed and implemented in a 150-nm CMOS process, after proton irradiation. The two structures are characterized by different junction types: the first structure is constituted by a P+/Nwell junction, while the second is formed by a Pwell/Niso junction. RTS occurrence has been measured in about one thousand SPAD pixels and the differences addressed in two layouts are motivated and discussed. Hypotheses on the RTS origin are drawn by analyzing the RTS time constants and the RTS occurrence evolution as a function of the annealing temperature.

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 436 ◽  
Author(s):  
Chin-An Hsieh ◽  
Chia-Ming Tsai ◽  
Bing-Yue Tsui ◽  
Bo-Jen Hsiao ◽  
Sheng-Di Lin

Single-photon avalanche diodes (SPADs) in complementary metal-oxide-semiconductor (CMOS) technology have excellent timing resolution and are capable to detect single photons. The most important indicator for its sensitivity, photon-detection probability (PDP), defines the probability of a successful detection for a single incident photon. To optimize PDP is a cost- and time-consuming task due to the complicated and expensive CMOS process. In this work, we have developed a simulation procedure to predict the PDP without any fitting parameter. With the given process parameters, our method combines the process, the electrical, and the optical simulations in commercially available software and the calculation of breakdown trigger probability. The simulation results have been compared with the experimental data conducted in an 800-nm CMOS technology and obtained a good consistence at the wavelength longer than 600 nm. The possible reasons for the disagreement at the short wavelength have been discussed. Our work provides an effective way to optimize the PDP of a SPAD prior to its fabrication.


2019 ◽  
Vol 3 (3) ◽  
Author(s):  
F. Di Capua ◽  
M. Campajola ◽  
D. Fiore ◽  
C. Nappi ◽  
E. Sarnelli ◽  
...  

2018 ◽  
Vol 36 (3) ◽  
pp. 833-837 ◽  
Author(s):  
Dai-Rong Wu ◽  
Chia-Ming Tsai ◽  
Yi-Hsiang Huang ◽  
Sheng-Di Lin

2011 ◽  
Vol 58 (6) ◽  
pp. 3343-3347 ◽  
Author(s):  
Jun Hu ◽  
Xiaobin Xin ◽  
Jian H. Zhao ◽  
Brenda L. VanMil ◽  
Rachael Myers-Ward ◽  
...  

2015 ◽  
Vol 24 (03n04) ◽  
pp. 1520006
Author(s):  
Mohammad Habib Ullah Habib ◽  
Farhan Quaiyum ◽  
Khandaker A. Al Mamun ◽  
Syed K. Islam ◽  
Nicole McFarlane

A comprehensive SPICE model is developed for single photon avalanche diodes (SPADs). The model simulates both the static and dynamic behaviors of SPADs. Parameters of the model were extracted form experimental data obtained from SPADs designed and fabricated in a standard 0.5μm CMOS process. In this model, the resistive behavior of the device was modeled with an exponential function. Moreover, the device simulated response to incident optical power stimulation is modeled. Experimentally extracted parameters were incorporated into the model, and simulation results agreed with the experimental data.


2018 ◽  
Vol 65 (8) ◽  
pp. 1654-1660 ◽  
Author(s):  
F. Di Capua ◽  
M. Campajola ◽  
L. Campajola ◽  
C. Nappi ◽  
E. Sarnelli ◽  
...  

2010 ◽  
Vol 10 (11) ◽  
pp. 1682-1690 ◽  
Author(s):  
Marc Dandin ◽  
Akin Akturk ◽  
Babak Nouri ◽  
Neil Goldsman ◽  
Pamela Abshire

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