Timing Closure At 7/5nm


Mansour Amirfathi, director of application engineering at Synopsys, examines how to determine if assumptions about design are correct, how many cycles are needed for a particular operation and why this is so complicated, and what happens if signals get out of phase. » read more

Timing Library LVF Validation For Production Design Flows


Variation modeling has evolved over the past several years from a single derating factor that represents on-chip variation (OCV), to Liberty Variation Format (LVF), today’s leading standard format that encapsulates variation information in timing libraries (.libs). LVF data is considered a requirement for advanced process nodes 22nm and below. At the smallest process nodes such as 7nm and ... » read more

Where Timing And Voltage Intersect


João Geada, chief technologist at ANSYS, talks about the limitations for power delivery networks and what processors can handle, why the current solutions to these issues are causing failures, and how voltage reduction can affect timing. » read more

Big Design, IP and End Market Shifts In 2020


EDA is on a roll. Design starts are up significantly thanks to increased investment in areas such as AI, a plethora of new communications standards, buildout of the Cloud, the race toward autonomous driving and continued advancements in mobile phones. Many designs demand the latest technologies and push the limits of complexity. Low power is becoming more than just reducing wasted power at t... » read more

Advanced Features Of High-Speed Digital I/O Devices: Timing


In digital communication, timing is the most essential element. Any kind of violation to timing could cause you to transmit or receive incorrect data. As instruments and communication rates get faster, timing becomes even more vital, as even the smallest of changes in edges (in the pico-second range), could cause incorrect tests and communication failures. In the following paragraphs, discover ... » read more

Multi-Physics At 5/3nm


Joao Geada, chief technologist at ANSYS, talks about why timing, process, voltage, and temperature no longer can be considered independently of each other at the most advanced nodes, and why it becomes more critical as designs shrink from 7nm to 5nm and eventually to 3nm. In addition, more chips are being customized, and more of those chips are part of broader systems that may involve an AI com... » read more

Timing Is Of The Essence


Today's advanced 16/7nm system-on-chips (SoCs) are faced with increased variation as they push for lower power. While the sizes of the transistors continue to shrink following Moore's Law, the threshold voltages fail to scale. This causes wide timing variability leading to timing closure difficulties, design re-spins and poor functional yield. Learn how ANSYS Path FX with its unique variatio... » read more

MISing In Signoff


Timing signoff is critical to ensure your design will perform as expected before it is taped out. For many designs, signoff and subsequent ECOs are focused on the performance target and iterating to meet that.  Once the performance goals are met then the attention passes onto hold-time fixing and then, usually, quickly onto tapeout.  However, even after extensive signoff analysis, silicon fai... » read more

Why Chips Die


Semiconductor devices contain hundreds of millions of transistors operating at extreme temperatures and in hostile environments, so it should come as no surprise that many of these devices fail to operate as expected or have a finite lifetime. Some devices never make it out of the lab and many others die in the fab. It is hoped that most devices released into products will survive until they be... » read more

Carmakers To Chipmakers: Where’s The Data?


The integration of electronics into increasingly autonomous vehicles isn't going nearly as smoothly as the marketing literature suggests. In fact, it could take years before some of these discrepancies are resolved. The push toward full autonomy certainly hasn't slowed down, but carmakers and the electronics industry are approaching that goal from very different vantage points. Carmakers and... » read more

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