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Project TitleDynamic Thermal Management in Asynchronous Circuits
Track Code3590
Short Description

A novel scheme to automatically regulate the performance and power consumption of asynchronous circuits with minimal implementation overhead, and without interruption of operation.

Abstract
Cornell researchers have developed a novel scheme to automatically regulate the performance and power consumption of asynchronous circuits with minimal implementation overhead, and without interruption of operation. The unique approach leverages the inherent temperature response of subthreshold transistors to construct simple temperature sensitive delay elements, which are strategically placed to regulate local throughput and modulate the circuit's temperature accordingly.

                      

Potential Applications

  • Automatic regulation of performance and power consumption of integrated circuits
  • Thermally-aware dynamic resource scheduling (e.g., asynchronous dispatchers)
  • Works for circuits of arbitrary complexity, including globally-asynchronous, locally synchronous (GALS) circuit designs
  • Asynchronous circuits benefit the most because of their self-time nature
  • Delay circuits, ring oscillators, and/or any asynchronous logic family that uses handshaking (e.g., FPGAs)

                  

Advantages

  • Overcomes timing failures, thermal runaway, and frequency drops
  • Eliminates need for heat sinks and cooling fans
  • Enables increased computational speed and higher density chips
  • Easily implemented hardware solution without complex temperature measurement circuitry
    • Eliminates need for additional, direct temperature sensors since temperature sensing is performed (indirectly) by the existing transistors
  • Selective rather than global thermal regulation within a circuit
 
Tagsasic, Applied Power & Devices, Chip Engineering (see also Semiconductor), components, computer hardware, electrical engineering, Peformance Enhancements, physical science, processors, Semiconductors & Integrated Circuits, signal processing, performance enhancements
 
Posted DateJul 25, 2012 8:38 PM

Researcher

Name
Rajit Manohar
Filipp Akopyan
David Fang

Additional Information

Patent: 7,411,436

Licensing Contact

Martin Teschl

mt439@cornell.edu

(607) 254-4454

Files

File Name Description
Asynchronous Portfolio Manohar.pdf Combined Technology Brief Download
3590 Technology Brief.pdf Technology Brief Download