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Proceedings ArticleDOI

Analysis and optimization of thermal issues in high-performance VLSI

TLDR
It is shown that chip level thermal effects can have a significant impact on large-scale circuit optimization techniques, including the clock-skew minimization scheme, and can influence other physical design problem formulations.
Abstract
This paper provides an overview of various thermal issues in high-performance VLSI with especial attention to their implications for performance and reliability. More specifically, it examines the impact of thermal effects on both interconnect design and electromigration reliability and discusses their impact on the allowable current density limits. Furthermore, it also discusses how thermal and reliability constrained current density limits may conflict with those obtained through purely performance based criterion. Additionally, it is shown that chip level thermal effects can have a significant impact on large-scale circuit optimization techniques, including the clock-skew minimization scheme, and can influence other physical design problem formulations. Finally, high-current interconnect design rules for ESD and I/O circuits are also examined.

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Citations
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Proceedings ArticleDOI

Buffered clock tree sizing for skew minimization under power and thermal budgets

TL;DR: This paper studies the clock tree sizing problem for thermal-aware skew minimization under power and thermal budgets and focuses on two kinds of skew, depending on the number of thermal profiles given: skew value and skew range.
Proceedings ArticleDOI

Bus-aware microarchitectural floorplanning

TL;DR: A fast performance-aware bus routing algorithm is developed, which is integrated into the floorplanning engine to ensure routability while optimizing other conflicting objectives.

Characterization and Modeling of TSV Based 3-D Integrated Circuits

TL;DR: In this paper, the authors provide an introduction to TSV electrical models, power delivery, and thermal behavior in 3-D integrated circuits, and provide guidelines for designing these evolving heterogeneous 3D systems.
Proceedings ArticleDOI

Analytical thermal placement for VLSI lifetime improvement and minimum performance variation

TL;DR: An effective analytical thermal placement technique is developed, as well as an improved analytical placement technique with a new cell spreading function for improved VLSI lifetime and minimized performance variation.
Patent

Methods and Apparatuses for Circuit Simulation

TL;DR: In this article, the inductive branch current variables in terms of node voltage variables are eliminated to generate a linear equation system with a sparse, symmetric and positive definite matrix, which can be solved efficiently using a pre-conditioned conjugate gradient method.
References
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Journal ArticleDOI

The Transient Response of Damped Linear Networks with Particular Regard to Wideband Amplifiers

TL;DR: It is found possible to define delay time and rise time in such a way that these quantities can be computed very simply from the Laplace system function of the network.
Journal ArticleDOI

Electromigration—A brief survey and some recent results

TL;DR: In this article, it is shown that positive gradients, in terms of electron flow, of temperature, current density, or ion diffusion coefficient foreshorten conductor life because they present regions where vacancies condense to form voids.
Book

Low Power Digital CMOS Design

TL;DR: The Hierarchy of Limits of Power J.D. Stratakos, et al., and Low Power Programmable Computation coauthored with M.B. Srivastava, provide a review of the main approaches to Voltage Scaling Approaches.
Journal ArticleDOI

Zero skew clock routing with minimum wirelength

TL;DR: In this article, a deferred-merge embedding (DME) algorithm is proposed to construct a clock tree with zero skew while minimizing the total wirelength, which can be applied to either the Elmore or linear delay model.
Proceedings ArticleDOI

Planning for performance

TL;DR: To achieve a non-iterative design flow, it is proposed that early synthesis stages should use "wireplanning" to distribute delays over the functional elements and interconnect, and layout synthesis should use its degrees of freedom to realize those delays.
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