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Minimum Propagation Delays in VLSI

Mead, Carver and Rem, Martin (1981) Minimum Propagation Delays in VLSI. In: Proceedings of the Second Caltech Conference on Very Large Scale Integration. California Institute of Technology , Pasadena, CA, pp. 433-439. https://resolver.caltech.edu/CaltechCONF:20120508-140116957

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Abstract

With feature sizes decreasing and chip area increasing it becomes more and more time consuming to transport signals over long distances across the chip [5]. Designers are already introducing more levels of metal connections, using wider and thicker paths for longer distances. Another recent development is the introduction of an additional level of connections between the chip and the pc-board, multilayer ceramic chip carriers. The trend is undoubtedly towards even more connecting levels. In this paper we demonstrate that it is possible to achieve propagation delays that are logarithmic in the lengths of the wires, provided the connection pattern is designed to meet rather strong constraints. These constraints are, in effect, satisfied only by connection patterns that exhibit a hierarchical structure. We also show that, even at the ultimate physical limits of the technology, the propagation for reasonably sized VLSI chips is dominated by these considerations, rather than by the speed of light.


Item Type:Book Section
Additional Information:The research described in this paper was sponsored by the Office of Naval Research Contract No. NOOOl4-76-C-0367 and by the Defense Advanced Research Agency, ARPA Order number 3771, and monitored by the Office of Naval Research under Contract number N00014-79-C-0597.
Funders:
Funding AgencyGrant Number
Office of Naval ResearchN00014-76-C-0367
Defense Advanced Research AgencyARPA Order 3771
Office of Naval ResearchN00011-79-C-0597
Record Number:CaltechCONF:20120508-140116957
Persistent URL:https://resolver.caltech.edu/CaltechCONF:20120508-140116957
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:234
Collection:CaltechCONF
Deposited By: Kristin Buxton
Deposited On:09 May 2012 22:48
Last Modified:03 Oct 2019 22:50

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