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Brian Bailey

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Brian Bailey is Technology Editor/EDA for Semiconductor Engineering.

Author's Latest Posts

An Entangled Heterarchy
By Brian Bailey - 09 Nov, 2023 - Comments: 1

For decades, a form of structural hierarchy has been the principal means of handling complexity in chip design. It's not always perfect, and there is no ideal way in which to divide and conquer because that would need to focus on the analysis being performed. In fact, most systems can be viewed from a variety of different hierarchies, equally correct, and together forming a heterarchy. The e... » read more

What Will That Chip Cost?
By Brian Bailey - 30 Oct, 2023 - Comments: 1

In the past, analysts, consultants, and many other experts attempted to estimate the cost of a new chip implemented in the latest process technology. They concluded that by the 3nm node, only a few companies would be able to afford them — and by the time they got into the angstrom range, probably nobody would. Much has changed over the past few process nodes. Increasing numbers of startups... » read more

The Limits Of AI-Generated Models
By Brian Bailey - 26 Oct, 2023 - Comments: 2

In several recent stories, the subject of models has come up, and one recurrent theme is that AI may be able to help us generate models of a required abstraction. While this may be true in some cases, it is very dangerous in others. If we generalize, AI should be good for any model where the results are predominantly continuous, but discontinuities create problems. Unless those are found and... » read more

Anatomy Of A System Simulation
By Brian Bailey - 26 Oct, 2023 - Comments: 0

The semiconductor industry has greatly simplified analysis by consolidating around a small number of models and abstractions, but that capability is breaking down both at the implementation level and at the system level. Today, the biggest pressure is coming from the systems industry, where the electronic content is a small fraction of what must be integrated together. Systems companies tend... » read more

RISC-V Wants All Your Cores
By Brian Bailey - 12 Oct, 2023 - Comments: 0

RISC-V is no longer content to disrupt the CPU industry. It is waging war against every type of processor integrated into an SoC or advanced package, an ambitious plan that will face stiff competition from entrenched players with deep-pocketed R&D operations and their well-constructed ecosystems. When Calista Redmond, CEO for RISC-V International, said at last year's summit that RISC-V w... » read more

The Federation Needs A Taxonomy
By Brian Bailey - 28 Sep, 2023 - Comments: 0

While putting together the story about federated simulation, it brought back memories of an earlier part of my career when I spent a lot of time looking at modeling abstractions and simulation frameworks. In the mid-1990s, the notions of re-using pre-designed blocks of IP started to become popular, but the fledgling industry was in disarray. Every IP block had a different set of deliverables... » read more

Industry Pressure Grows For Simulating Systems Of Systems
By Brian Bailey - 28 Sep, 2023 - Comments: 0

Most complex systems are designed in a top-down manner, but as the amount of electronic content in those systems increases, so does the pressure on the chip industry to provide high-level models and simulation capabilities. Those models either do not exist today, or they exist in isolation. No matter how capable a model or simulator, there never will be one that can do it all. In some cases,... » read more

What Happened To Portable Stimulus?
By Brian Bailey - 28 Sep, 2023 - Comments: 0

In June 2018, Accellera released the initial version of the Portable Test and Stimulus Standard (PSS), a new verification language that was slated to be the first new abstraction defined within EDA for a couple of decades. So what happened to it? Apart from a few updates at DVCon, there appears to be little talk about it today. However, the industry has its head down trying to make it work, ... » read more

The Race Toward Quantum Advantage
By Brian Bailey - 14 Sep, 2023 - Comments: 0

Quantum computing has yet to show an advantage over conventional computing, but huge sums of money are betting it will. So far that hasn't happened. Early quantum computers were created in the mid-1990s after mathematicians had demonstrated the effectiveness of applying quantum approaches to some problems. At that stage they were simulated using conventional computing, but it started the rac... » read more

New Concepts Required For Security Verification
By Brian Bailey - 28 Aug, 2023 - Comments: 0

Verification for security requires new practices in both the development and verification flows, but tools and methodologies to enable this are rudimentary today. Flows are becoming more complex, especially when they span multiple development groups. Security is special in that it is pervasive throughout the development process, requiring both positive and negative verification. Positive ver... » read more

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