A Methodology to Predict the Impact of Substrate Noise in Analog/RF Systems

Bronckers, Stephane; Scheir, Karen; Plas, G. Van der; Vandersteen, Gerd; Rolain, Yves

doi:10.1109/tcad.2009.2030360

Cited by 11 publications

(9 citation statements)

References 22 publications

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“…We choose this simulation tool, as it allows us to obtain fields induced inside lossy dielectric volumes. Moreover, previous studies have shown very good agreement between FEM simulations and measurements of on-chip passive isolation structures [2]. Fields induced in the substrate due to a current distribution of J = Iδ(r)ẑ from z = 0 to z = h 3 are simulated and compared to the ones obtained with the proposed model.…”

Section: Symmetric Study Case: Modeling Of Trenchesmentioning

confidence: 69%

“…Therefore, it is important to implement techniques to prevent interference from reaching sensitive nodes through the substrate. In this sense, passive isolation structures are commonly used to minimize unwanted coupling [2]. There are two main isolation mechanisms that can be implemented, either separately or combined.…”

Section: Introductionmentioning

confidence: 99%

“…The first one consists in providing a low impedance path in order to attract interference currents and route them away from sensitive nodes. In practice, this is normally implemented with a P+ guard ring connected to an off-chip ground [2], [3]. The second one consists in blocking interference propagation by embedding highly resistive or dielectric sections between the aggressor and the potential victim.…”

Section: Introductionmentioning

confidence: 99%

“…In practice, passive isolation structures are usually characterized experimentally and/or by means of simulations [2], [4], [6]. An overview of the most common computational techniques used for substrate modeling can be found in [7].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fast Electromagnetic Characterization of Integrated Circuit Passive Isolation Structures Based on Interference Blocking

Novellas

Serra

Rose

2017

IEEE Trans. Microwave Theory Techn.

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Abstract-An early characterization of integrated circuit passive isolation structures is crucial to predict their performance and effectiveness in minimizing substrate coupling. In this paper, an electromagnetic modeling methodology is proposed, that can be applied to different types of isolation structures based on interference blocking. It consists in characterizing the different doping profiles by identifying those propagation modes with a greater contribution to substrate coupling and to the aggressorvictim transfer function. This allows a fast electromagnetic characterization, providing insight on the different isolation mechanisms, identification of transitory effects and a fast prediction of isolation effectiveness.

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Section: Symmetric Study Case: Modeling Of Trenchesmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fast Electromagnetic Characterization of Integrated Circuit Passive Isolation Structures Based on Interference Blocking

Novellas

Serra

Rose

2017

IEEE Trans. Microwave Theory Techn.

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“…In order to prevent two sections of the same IC from interfering each other, highly resistive and/or charge-free sections are commonly embedded in order to increase isolation between them [5]. Their role is to discontinue the substrate top layer (active layer), where circuits are implemented, and thus interrupt the normal flow of currents that support interference propagation.…”

Section: Introductionmentioning

confidence: 99%

Efficient Modeling of Multistage Integrated Circuit Passive Isolation Structures

Novellas

Serra

Rose

et al. 2018

IEEE Trans. Electromagn. Compat.

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Abstract-In this paper, an efficient electromagnetic modeling methodology is proposed for multi-stage integrated passive isolation structures. The methodology is based on a modal expansion of interference field components. With it, we are able to accurately characterize a great variety of structures approximately 300 times faster than with full-wave simulations. Calculated results have been compared to both simulations and measurements, obtaining good agreement. The proposed model is intended to be a tool for fast prediction purposes at early stages of the design flow.

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Amplitude-modulated EM side-channel attack on provably secure masked AES

Wang

2024

J Cryptogr Eng

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Recently a new type of side channels was discovered, called amplitude-modulated electromagnetic (EM) emanations from mixed-signal circuits. Unlike power analysis or near field EM analysis, attacks based on amplitude-modulated EM emanations do not require the close physical access to the victim device, which makes the attack particularly threatening. However, all existing amplitude-modulated EM attacks on AES focus on implementations of unprotected TinyAES, which is less likely to be used when the implementation is not overly resource constrained. This paper presents the first deep learning based side-channel attack on AES-128 with a Rivain–Prouff masking scheme by using amplitude-modulated EM emanations as the side channel. Rivian–Prouff masking scheme is a provably secure higher-order masking scheme for AES. To bypass the theoretical strength of the addition-chain based Boolean masked SBox, we train neural networks on trace segments corresponding to the MixColumns operation in which the data loading instructions for SBox output leak information. By comparing two different training strategies, we show that it is feasible to recover the key from an ARM Cortex-M4 CPU implementation of AES-128 with a Rivain–Prouff masking scheme by using the amplitude-modulated EM emanations leaked from the victim device, which has a Bluetooth module embedded on the board.

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A Methodology to Predict the Impact of Substrate Noise in Analog/RF Systems

Cited by 11 publications

References 22 publications

Fast Electromagnetic Characterization of Integrated Circuit Passive Isolation Structures Based on Interference Blocking

Fast Electromagnetic Characterization of Integrated Circuit Passive Isolation Structures Based on Interference Blocking

Efficient Modeling of Multistage Integrated Circuit Passive Isolation Structures

Amplitude-modulated EM side-channel attack on provably secure masked AES

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