The Trouble With Clock Trees


By Arvind Narayanan Among the perennial challenges of advanced-node IC design is power reduction. Clock trees are now the single largest source of dynamic power consumption, which makes clock tree synthesis (CTS) and optimization an important task for achieving overall power savings. Building a well-balanced clock tree and effectively managing clock skew has been a challenge since the first... » read more

Improving Reliability


By Dina Medhat Advanced IC designs implement complex strategies to minimize static and dynamic power. Mixed-signal designs typically require different supply voltages for the analog and digital portions of the design, and even all-digital ICs can have many power domains and operating voltages. Typically, some signal lines cross from one domain to another and special interfaces and “voltage p... » read more

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