Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method

Monolithic integrated μLED optrode has promising applications in optogenetics due to their ability to achieve more optical channels in a smaller footprint. The current used to drive the μLED will cause electromagnetic interference (EMI) noise to the recording electrodes at a very close distance. Uti...

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Autores principales:	Yang Wang, Yamin Li, Xiaowei Yang, Xiaoting Wu, Yijun Wang, Weihua Pei
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	μLED optrode electromagnetic interference electromagnetic shielding optogenetics finite element method Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/2fcaeebea35545bdb10921ee2b5aafc9
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spelling	oai:doaj.org-article:2fcaeebea35545bdb10921ee2b5aafc92021-12-02T10:50:30ZAnalysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method2673-301310.3389/fnano.2021.758484https://doaj.org/article/2fcaeebea35545bdb10921ee2b5aafc92021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fnano.2021.758484/fullhttps://doaj.org/toc/2673-3013Monolithic integrated μLED optrode has promising applications in optogenetics due to their ability to achieve more optical channels in a smaller footprint. The current used to drive the μLED will cause electromagnetic interference (EMI) noise to the recording electrodes at a very close distance. Utilizing a grounded metal shielding layer between the active device and the electrode can potentially reduce the interference. In this paper, multi-dimensional μLED optrode models are set up according to the real device. By numerically analyzing the electromagnetic interference between the μLED and recording electrodes, several optimized shielding schemes are evaluated by simulations and experiments. Some important process and layout parameters that may influence the shielding effect are studied through the finite element method (FEM). Different circuit models based on the corresponding test environment are built to analyze the simulation and experiment results. A new PCB with a shielding layer has been designed and initially verified. The proposed novel computational model can analyze EMI quantitatively, which could facilitate the design of low-noise μLED optrode with reasonable shielding and packaging.Yang WangYang WangYamin LiYamin LiXiaowei YangXiaoting WuXiaoting WuYijun WangYijun WangWeihua PeiWeihua PeiWeihua PeiFrontiers Media S.A.articleμLED optrodeelectromagnetic interferenceelectromagnetic shieldingoptogeneticsfinite element methodChemical technologyTP1-1185ENFrontiers in Nanotechnology, Vol 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	μLED optrode electromagnetic interference electromagnetic shielding optogenetics finite element method Chemical technology TP1-1185
spellingShingle	μLED optrode electromagnetic interference electromagnetic shielding optogenetics finite element method Chemical technology TP1-1185 Yang Wang Yang Wang Yamin Li Yamin Li Xiaowei Yang Xiaoting Wu Xiaoting Wu Yijun Wang Yijun Wang Weihua Pei Weihua Pei Weihua Pei Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method
description	Monolithic integrated μLED optrode has promising applications in optogenetics due to their ability to achieve more optical channels in a smaller footprint. The current used to drive the μLED will cause electromagnetic interference (EMI) noise to the recording electrodes at a very close distance. Utilizing a grounded metal shielding layer between the active device and the electrode can potentially reduce the interference. In this paper, multi-dimensional μLED optrode models are set up according to the real device. By numerically analyzing the electromagnetic interference between the μLED and recording electrodes, several optimized shielding schemes are evaluated by simulations and experiments. Some important process and layout parameters that may influence the shielding effect are studied through the finite element method (FEM). Different circuit models based on the corresponding test environment are built to analyze the simulation and experiment results. A new PCB with a shielding layer has been designed and initially verified. The proposed novel computational model can analyze EMI quantitatively, which could facilitate the design of low-noise μLED optrode with reasonable shielding and packaging.
format	article
author	Yang Wang Yang Wang Yamin Li Yamin Li Xiaowei Yang Xiaoting Wu Xiaoting Wu Yijun Wang Yijun Wang Weihua Pei Weihua Pei Weihua Pei
author_facet	Yang Wang Yang Wang Yamin Li Yamin Li Xiaowei Yang Xiaoting Wu Xiaoting Wu Yijun Wang Yijun Wang Weihua Pei Weihua Pei Weihua Pei
author_sort	Yang Wang
title	Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method
title_short	Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method
title_full	Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method
title_fullStr	Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method
title_full_unstemmed	Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method
title_sort	analysis of electromagnetic interference and shielding in the μled optrode based on finite element method
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/2fcaeebea35545bdb10921ee2b5aafc9
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Analysis of Electromagnetic Interference and Shielding in the μLED Optrode Based on Finite Element Method

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