Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel

In this paper, we present a thorough analysis of parasitic coupling effects between different electrodes for a 3D Sequential Integration circuit example comprising stacked devices. More specifically, this study is performed for a Back-Side Illuminated, 4T–APS, 3D Sequential Integration pixel with bo...

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Main Authors: Petros Sideris, Arnaud Peizerat, Perrine Batude, Gilles Sicard, Christoforos Theodorou
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Technologies
Subjects:
Online Access:https://www.mdpi.com/2227-7080/10/2/38
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author Petros Sideris
Arnaud Peizerat
Perrine Batude
Gilles Sicard
Christoforos Theodorou
author_facet Petros Sideris
Arnaud Peizerat
Perrine Batude
Gilles Sicard
Christoforos Theodorou
author_sort Petros Sideris
collection DOAJ
description In this paper, we present a thorough analysis of parasitic coupling effects between different electrodes for a 3D Sequential Integration circuit example comprising stacked devices. More specifically, this study is performed for a Back-Side Illuminated, 4T–APS, 3D Sequential Integration pixel with both its photodiode and Transfer Gate at the bottom tier and the other parts of the circuit on the top tier. The effects of voltage bias and 3D inter-tier contacts are studied by using TCAD simulations. Coupling-induced electrical parameter variations are compared against variations due to temperature change, revealing that these two effects can cause similar levels of readout error for the top-tier readout circuit. On the bright side, we also demonstrate that in the case of a rolling shutter pixel readout, the coupling effect becomes nearly negligible. Therefore, we estimate that the presence of an inter-tier ground plane, normally used for electrical isolation, is not strictly mandatory for Monolithic 3D pixels.
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spelling doaj.art-41ebbdc9c9b745698489d7fe1b25f5c12023-12-03T14:00:59ZengMDPI AGTechnologies2227-70802022-02-011023810.3390/technologies10020038Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D PixelPetros Sideris0Arnaud Peizerat1Perrine Batude2Gilles Sicard3Christoforos Theodorou4University Grenoble Alpes, Univ. Savoie Mont Blanc, Centre National de la Recherche Scientifique (CNRS), Grenoble INstitut Polytechnique (Grenoble INP), Institut de Microélectronique Electromagnétisme Photonique-LAboratoire d′Hyperfréquences et de Caractérisation (IMEP—LAHC), 38000 Grenoble, FranceCommissariat à l’Energie Atomique et aux Energies Alternatives—Laboratoire d′Electronique des Technologies de l′Information (CEA—LETI), University Grenoble Alpes, 38054 Grenoble, FranceCommissariat à l’Energie Atomique et aux Energies Alternatives—Laboratoire d′Electronique des Technologies de l′Information (CEA—LETI), University Grenoble Alpes, 38054 Grenoble, FranceCommissariat à l’Energie Atomique et aux Energies Alternatives—Laboratoire d′Electronique des Technologies de l′Information (CEA—LETI), University Grenoble Alpes, 38054 Grenoble, FranceUniversity Grenoble Alpes, Univ. Savoie Mont Blanc, Centre National de la Recherche Scientifique (CNRS), Grenoble INstitut Polytechnique (Grenoble INP), Institut de Microélectronique Electromagnétisme Photonique-LAboratoire d′Hyperfréquences et de Caractérisation (IMEP—LAHC), 38000 Grenoble, FranceIn this paper, we present a thorough analysis of parasitic coupling effects between different electrodes for a 3D Sequential Integration circuit example comprising stacked devices. More specifically, this study is performed for a Back-Side Illuminated, 4T–APS, 3D Sequential Integration pixel with both its photodiode and Transfer Gate at the bottom tier and the other parts of the circuit on the top tier. The effects of voltage bias and 3D inter-tier contacts are studied by using TCAD simulations. Coupling-induced electrical parameter variations are compared against variations due to temperature change, revealing that these two effects can cause similar levels of readout error for the top-tier readout circuit. On the bright side, we also demonstrate that in the case of a rolling shutter pixel readout, the coupling effect becomes nearly negligible. Therefore, we estimate that the presence of an inter-tier ground plane, normally used for electrical isolation, is not strictly mandatory for Monolithic 3D pixels.https://www.mdpi.com/2227-7080/10/2/38image sensors3D pixels3D sequential integration3DSImonolithic 3DM3D
spellingShingle Petros Sideris
Arnaud Peizerat
Perrine Batude
Gilles Sicard
Christoforos Theodorou
Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel
Technologies
image sensors
3D pixels
3D sequential integration
3DSI
monolithic 3D
M3D
title Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel
title_full Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel
title_fullStr Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel
title_full_unstemmed Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel
title_short Parasitic Coupling in 3D Sequential Integration: The Example of a Two-Layer 3D Pixel
title_sort parasitic coupling in 3d sequential integration the example of a two layer 3d pixel
topic image sensors
3D pixels
3D sequential integration
3DSI
monolithic 3D
M3D
url https://www.mdpi.com/2227-7080/10/2/38
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