760 MHz G6 S/390 microprocessor exploiting multiple Vt and copper interconnects

Abstract

The G6 system is a sixth generation CMOS server for the S/390 line of products featuring a 12+2 SMP size and significant frequency improvements obtained through the use of low-Vt devices and copper interconnects. The microprocessor operates at 760 MHz at the fast end of the process distribution. The system ships at 637 MHz in a 12+2 chilled SMP configuration. Measured system performance on the 12 way is 1600 S/390 MIPs, providing over 50% more performance than the G5. This microprocessor uses CMOS7S technology, which has a 0.2 /spl mu/m process. The chip uses 6 levels of copper metal plus an additional layer of local interconnect on a 14.6/spl times/14.7 mm/sup 2/ die with 25M transistors (7M logic/18M array). The power supply is 1.9 V and the chip power is 33 W at 637 MHz.