Effect of shield insertion on reducing crosstalk noise between coupled interconnects

Zhang, Junmou; Friedman, Eby G.

doi:10.1109/iscas.2004.1329325

Cited by 27 publications

(2 citation statements)

References 7 publications

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“…The ST can significantly reduce the crosstalk effects of mutual inductance, and coupling capacitance between the coupled interconnects. 25 It has provided the return path between coupled interconnect lines. 35 The shielding technique has two types: the AS and PS techniques.…”

Section: Mitigation Of the Si Issues Using The Active And Passive Shi...mentioning

confidence: 99%

Evaluation and Reduction of Signal Integrity Issues in Multiwalled Carbon Nanotube On-Chip VLSI Interconnects

Mudavath¹,

Naik²,

Jeripotula³

2021

ECS J. Solid State Sci. Technol.

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Due to advancements in device scaling in very-large-scale integration (VLSI) technology, signal integrity (SI) issues play a major role to determining the performance of on-chip interconnects in high-speed digital circuits. The main SI issues are delays, peak voltage noise effects, crosstalk, and timing uncertainties. Here, the SI issues of the coupled multi-walled carbon nanotube (MWCNT) on-chip interconnects are evaluated with and without the effect of shielding technique and compared to the copper interconnects. The MWCNT exhibits an average of 47.9% smaller propagation delays than Cu in dynamic crosstalk conditions. Further, for crosstalk reduction, the active shielding (AS) and passive shielding (PS) techniques are proposed. With the AS and PS techniques, the MWCNT interconnects experience a decreased delay by 46.8% and 30.15% compared to without shielding technique, respectively. Moreover, the AS exhibits smaller crosstalk effects than the PS technique due to its input switching activities on shielded lines. In addition, the quality of the signal (QoS) and Intersymbol interference (ISI) noise effects of coupled MWCNT interconnect with and without shielding is evaluated. Finally, to improve the QoS and reduce the ISI effects, the decision feedback equalizer with the least mean square adaptive algorithm is implemented at the receiver end.

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Section: Mitigation Of the Si Issues Using The Active And Passive Shi...mentioning

confidence: 99%

Evaluation and Reduction of Signal Integrity Issues in Multiwalled Carbon Nanotube On-Chip VLSI Interconnects

Mudavath¹,

Naik²,

Jeripotula³

2021

ECS J. Solid State Sci. Technol.

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“…Accordingly, capacitive coupling crosstalk is mainly considered, which results in delay uncertainty associated with transition patterns [11]. Physical Mechanisms reduce crosstalk at the expense of routing area, including adjusting bus spacing [12] and active or passive shielding [13,14], which are also the primary way to optimize chiplet interconnects presently [15,16]. Repeater interleaving [17] or mixedpolarity repeater insertion [18] can reduce the delay uncertainty for long interconnects, but repeaters require additional area.…”

Section: Introductionmentioning

confidence: 99%

Exploiting signal skew to reduce delay uncertainty for chiplet interconnects

Guo

2023

IEICE Electron. Express

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High-bandwidth interconnects between chiplets employ parallel interfaces, whose performance is limited by inter-channel crosstalk. In order to reduce the delay uncertainty (jitter) induced by crosstalk, this work analyzes the effect of signal skew and proposes a static skew scheme and a novel dynamic skew scheme. A fast algorithm is also suggested to determine the optimal skew value for the dynamic scheme. The experiment results show that the static scheme can significantly reduce jitter for low-speed buses but fails at high speed. By contrast, the dynamic scheme reduces jitter by about 44% for lowspeed buses, reduces the jitter increment due to intersymbol interference by about 71%, and is effective at a higher bus rate. The proposed signal skew schemes require no additional routing overhead.

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Modified weighted code with bit invert approach to minimize crosstalk in network on chip links

Bharathi¹,

Muthusamy²,

Gengavel³

2017

Cluster Comput

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Effect of shield insertion on reducing crosstalk noise between coupled interconnects

Cited by 27 publications

References 7 publications

Evaluation and Reduction of Signal Integrity Issues in Multiwalled Carbon Nanotube On-Chip VLSI Interconnects

Evaluation and Reduction of Signal Integrity Issues in Multiwalled Carbon Nanotube On-Chip VLSI Interconnects

Exploiting signal skew to reduce delay uncertainty for chiplet interconnects

Modified weighted code with bit invert approach to minimize crosstalk in network on chip links

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