Comparing And Spotting The Difference Between Two Simulations


Comparing is a basic skill we all use in our daily lives in order to understand reality and analyze situations. When it comes to chip verification, the fundamental task of checking also involves comparing because checking is always "checking vs. something" — the ASIC specification and/or a model. In practice, when we encounter a failing test, oftentimes we have a comparable passing tes... » read more

Domain-Specific Design Drives EDA Changes


The chip design ecosystem is beginning to pivot toward domain-specific architectures, setting off a scramble among tools vendors to simplify and optimize existing tools and methodologies. The move reflects a sharp slowdown in Moore's Law scaling as the best approach for improving performance and reducing power. In its place, chipmakers — which now includes systems companies — are pushing... » read more

Reliability Concerns Shift Left Into Chip Design


Demand for lower defect rates and higher yields is increasing, in part because chips are now being used for safety- and mission-critical applications, and in part because it's a way of offsetting rising design and manufacturing costs. What's changed is the new emphasis on solving these problems in the initial design. In the past, defectivity and yield were considered problems for the fab. Re... » read more

Advanced Packaging Shifts Design Focus To System Level


Growing momentum for advanced packaging is shifting design from a die-centric focus toward integrated systems with multiple die, but it's also straining some EDA tools and methodologies and creating gaps in areas where none existed. These changes are causing churn in unexpected areas. For some chip companies, this has resulted in a slowdown in hiring of ASIC designers and an uptick in new jo... » read more

Debugging Embedded Applications


Debugging embedded designs is becoming increasingly difficult as the number of observed and possible interactions between hardware and software continue to grow, and as more features are crammed into chips, packages, and systems. But there also appear to be some advances on this front, involving a mix of techniques, including hardware trace, scan chain-based debug, along with better simulation ... » read more

Partitioning For Better Performance And Power


Partitioning is becoming more critical and much more complex as design teams balance different ways to optimize performance and power, shifting their focus from a single chip to a package or system involving multiple chips with very specific tasks. Approaches to design partitioning have changed over the years, most recently because processor clock speeds have hit a wall while the amount of d... » read more

Optimization Driving Changes In Microarchitectures


The semiconductor ecosystem is at a turning point for how to best architect the CPU based on the explosion of data, the increased usage of AI, and the need for differentiation and customization in leading-edge applications. In the past, much of this would have been accomplished by moving to the next process node. But with the benefits from scaling diminishing at each new node, the focus is s... » read more

Steering The Semiconductor Industry


Progress in semiconductors has been one of the most successful engineering feats, and the industry has ridden an exponential curve longer than anything else in history. It is also a highly conservative industry that has pushed away many disruptive changes in favor of small incremental changes that minimize risk. There have been significant changes over the decades, and they often required a ... » read more

Week In Review: Design, Low Power


Tools Vtool released a new version of its Cogita visual debug platform. New features aim to provide faster debug capabilities, including visual representation of test results using log files as input, improved manipulation and navigation throughout big logs, ML algorithms to classify data and find the relationship between inputs, and the ability to merge and compare test flow of two different ... » read more

Week In Review: Auto, Security, Pervasive Computing


Automotive SGS-TÜV Saar certified that Cadence’s Tensilica Xtensa processors with FlexLock meets the ISO 26262:2018 standard to ASIL-D level. The new FlexLock feature is key to the certification because it supports lockstep, a fault-tolerant method that runs the same operation on two cores at the same time and then compares the output. Any difference in the output can be examined for issues... » read more

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