Performance Studies of the p-spray/p-stop implanted Si Sensors for the SiD Detector Article Swipe

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Pooja Saxena , K. Ranjan , Ashutosh Bhardwaj , S. Bhattacharya , M. S. Rangel ·

YOU? · · 2020 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2003.02720

Silicon Detector (SiD) is one of the proposed detector for future $e^+e^-$ Linear colliders, like International Linear Collider (ILC). The estimated neutron background for ILC is around 1 - 1.6 x 1010 1-MeV equivalent neutrons cm-2 year-1 for the Si micro strip sensors to be used in the innermost vertex detector. The p+n-n+ double-sided Si strip sensors are supposed to be used as position sensitive sensors for SiD. On the $n^+n^-$ side of these sensors, shorting due to electron accumulation leads to uniform spreading of signal over all the n+ strips. Hence inter-strip isolation becomes one of the major technological challenges. One of the attractive methods to achieve the inter-strip isolation is the use of uniform p-type implant on the silicon surface (p-spray). Another alternative is the use of floating p-type implants that surround the n-strips (p-stop). However, the high electric fields at the edge of the p-spray/p-stop have been shown to induce pre-breakdown micro-discharge. An optimization of the implant dose profile of the p-spray and p-stop is required to achieve good electrical isolation while ensuring satisfactory breakdown performance of the Si sensors. In the present work, we report the preliminary results of simulation study performed on the $n^+n^-$ Si sensors, equipped with p-spray and p-stops, using SILVACO tools.

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Optoelectronics

Materials Science

Electrical Engineering

Engineering

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Detector Optoelectronics Materials science Electrical engineering Engineering

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2003.02720
PDF: https://arxiv.org/pdf/2003.02720
OA Status: green
Related Works: 2
OpenAlex ID: https://openalex.org/W2600455017

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DOI: https://doi.org/10.48550/arxiv.2003.02720

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Title: Performance Studies of the p-spray/p-stop implanted Si Sensors for the SiD Detector

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Type: preprint

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Language: en

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Publication year: 2020

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Publication date: 2020-03-05

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Authors: Pooja Saxena, K. Ranjan, Ashutosh Bhardwaj, S. Bhattacharya, M. S. Rangel

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Landing page: https://arxiv.org/abs/2003.02720

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Concepts: Detector, Optoelectronics, Materials science, Electrical engineering, Engineering

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