JSSC 2006第1期Memory90nmProcessor/CPU

Implementation of a Fourth-Generation 18-GHz Dual-Core SPARC V9 Microprocessor

第四代18GHz双核SPARC V9微处理器采用90nm双阈值电压双栅氧化技术，优化布局提升制造性和性能。

1.8 GHz, 90 W, 1.1 V

SPARC V9双核处理器90nm技术高性能计算低功耗设计

▸双核架构设计：采用第四代双核SPARC V9架构，通过优化的核间通信机制和资源共享策略，显著提升多线程处理能力，支持18 GHz高频操作，属于系统级创新。

▸90nm双阈值电压双栅氧化技术：利用先进的90nm双阈值电压（dual-Vt）和双栅氧化（dual-gate-oxide）技术，在1.1V低电压下实现高性能与低功耗平衡，属于工艺与电路协同创新。

▸优化的布局设计：通过完全重新设计的布局方案，结合定制化库开发，显著提升制造可行性和性能，支持1.8 GHz高频运行，属于物理设计方法创新。

▸内存子系统升级：引入2MB Level-2缓存和Level-3标签，采用更新的内存设计方法，提升数据访问效率并简化高质量设计流程，属于存储架构创新。

Abstract

This fourth-generation processor combines two en- hanced third-generation cores using an advanced 90-nm dual-Vt, dual-gate-oxide technology. Hardware additions feature expanded caches and inclusion of a 2-MB Level-2 cache and a Level-3 tag. Layout was completely redrawn to optimize the design for manufacturability and performance in the latest technology. Special emphasis was placed on library development to improve automation and assist in custom design. The memory design methodologies were com