A dynamic thermal management circuit for system-on-chip designs

A novel fully integrated dynamic thermal management circuit for system-on-chip design is proposed and implemented in a VLSI device. Instead of worst-case thermal management used in conventional systems, this design yields continual monitoring of thermal activity and reacts to specified conditions. With the above system, we can incorporate on-chip power/speed modulation and an integrated multi-stage fan controller, which allows one to achieve nominal power dissipation and ensure operation within specification. Both architecture and circuitry are optimized for modern system-on-chip designs. This design yields intricate control and optimal management with little system overhead and minimum hardware requirements, as well as providing the flexibility to support different management algorithms. This circuit is fabricated in a TSMC 0.25 /spl mu/m process through MOSIS.

[1]  John Choma,et al.  A programmable thermal management interface circuit for PowerPC systems , 2001 .

[2]  M. Rencz,et al.  Thermal testing methods to increase system reliability , 1997, Thirteenth Annual IEEE. Semiconductor Thermal Measurement and Management Symposium.

[3]  J. Steele.  ACPI thermal sensing and control in the PC , 1998, Wescon/98. Conference Proceedings (Cat. No.98CH36265).

[4]  J. W. Sofia.  Analysis of thermal transient data with synthesized dynamic models for semiconductor devices , 1994 .

[5]  Herming Chiueh,et al.  A high–speed CMOS on–chip temperature sensor , 1999 .

[6]  Sung-Mo Kang,et al.  Substrate thermal model reduction for efficient transient electrothermal simulation , 2000, 2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390).

[7]  John Choma,et al.  Implementation of a Temperature Monitoring Interface Circuit for PowerPC systems , 2000, Proceedings of the 43rd IEEE Midwest Symposium on Circuits and Systems (Cat.No.CH37144).

[8]  John Choma,et al.  A novel model for on-chip heat dissipation , 1998, IEEE. APCCAS 1998. 1998 IEEE Asia-Pacific Conference on Circuits and Systems. Microelectronics and Integrating Systems. Proceedings (Cat. No.98EX242).

[9]  Herming Chiueh,et al.  A novel fully integrated fan controller for advanced computer systems , 2000, 2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390).

[10]  Márta Rencz,et al.  Electro-thermal and logi-thermal simulation of VLSI designs , 1997, IEEE Trans. Very Large Scale Integr. Syst..

[11]  Jeffrey T. Draper,et al.  Thermal Management in Embedded Systems Using MEMS , 1998, IPPS/SPDP Workshops.