Title :
Adaptive Frequency and Biasing Techniques for Tolerance to Dynamic Temperature-Voltage Variations and Aging
Author :
Tschanz, James ; Kim, Nam Sung ; Dighe, Saurabh ; Howard, Jason ; Ruhl, Gregory ; Vangal, Sriram ; Narendra, Siva ; Hoskote, Yatin ; Wilson, Howard ; Lam, Carol ; Shuman, Matthew ; Tokunaga, Carlos ; Somasekhar, Dinesh ; Tang, Stephen ; Finan, David ; Kar
Author_Institution :
Intel, Hillsboro, OR
Abstract :
Temperature, voltage, and current sensors monitor the operation of a TCP/IP offload accelerator engine fabricated in 90nm CMOS, and a control unit dynamically changes frequency, voltage, and body bias for optimum performance and energy efficiency. Fast response to droops and temperature changes is enabled by a multi-PLL clocking unit and on-chip body bias. Adaptive techniques are also used to compensate performance degradation due to device aging, reducing the aging guardband.
Keywords :
CMOS integrated circuits; electric sensing devices; microprocessor chips; phase locked loops; temperature sensors; transport protocols; CMOS technology; TCP/IP offload accelerator; aging guardband; current sensors; device aging; dynamic adaptive biasing; performance degradation; phase locked loops; temperature sensors; voltage sensors; Aging; Clocks; Energy efficiency; Engines; Frequency; Monitoring; TCPIP; Temperature control; Temperature sensors; Voltage control;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0853-9
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373409
