The Sub-2nm Paradox

By Ed Sperling - 01 Jun, 2026 - Comments: 2

Key Takeaways: Process variation and physics are changing semiconductor design, manufacturing, and economics at 2nm and below. Even though new manufacturing processes are being introduced, it's taking longer for them to mature. The focus for many chip designs is faster data movement and more efficient computing, rather than just relying on more transistors per mm2. At 2nm an... » read more

Spray And Pray Wastes Power

By Brian Bailey - 24 Nov, 2025 - Comments: 0

For quite some time I have felt that the way the industry approaches power is less than optimal. Techniques such as clock gating and power gating have been used to reduce the amount of unnecessary activity and leakage, but is there more activity that does not contribute to an intended action? While unnecessary activity may be unimportant in the functional sense, it all represents power that ... » read more

Aging, Complexity, And AI In Analog Design

By Ed Sperling - 27 Nov, 2024 - Comments: 0

Experts at the Table: Semiconductor Engineering sat down to discuss abstraction in analog vs. digital, how analog circuits age, the growing role of AI, and why there is so much margin in analog designs, with Mo Faisal, president and CEO of Movellus; Hany Elhak, executive director of product management at Synopsys; Cedric Pujol, product manager at Keysight; and Pradeep Thiagarajan, principal pro... » read more

Staying Within The Margins

By Barry Pangrle - 28 Mar, 2024 - Comments: 0

Last March I wrote an article called Squeezing the Margins that’s about a design that used an adaptive clocking scheme to keep the performance of a system high while simultaneously keeping the temperature below a specified maximum. Last August we looked at Managing Voltage Variation and how an adaptive clocking scheme could be used to manage dynamic voltage drop to maximize system performance... » read more

Reducing Power In Data Centers

By Ed Sperling - 16 Jan, 2024 - Comments: 0

The rollout of generative AI, coupled with more data in general, is requiring data centers to run servers harder and longer. That, in turn, is generating more heat and accelerating aging, and to ensure these systems continue working over their projected lifetimes, chipmakers are building extra margin into chips. That increases the amount of energy required to run and cool them, and it can short... » read more

Battling Over Shrinking Physical Margin In Chips

By Ed Sperling - 31 Jul, 2023 - Comments: 0

Smaller process nodes, coupled with a continual quest to add more features into designs, are forcing chipmakers and systems companies to choose which design and manufacturing groups have access to a shrinking pool of technology margin. In the past margin largely was split between the foundries, which imposed highly restrictive design rules (RDRs) to compensate for uncertainties in new proces... » read more

Reliability Concerns Shift Left Into Chip Design

By Ann Mutschler - 22 Dec, 2021 - Comments: 1

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

Designing Chips For Test Data

By Ed Sperling - 10 Aug, 2021 - Comments: 0

Collecting data to determine the health of a chip throughout its lifecycle is becoming necessary as chips are used in more critical applications, but being able to access that data isn't always so simple. It requires moving signals through a complex, sometimes unpredictable, and often hostile environment, which is a daunting challenge under the best of conditions. There is a growing sense of... » read more

Do We Have An IC Model Crisis?

By Brian Bailey - 27 May, 2021 - Comments: 0

Models are critical for IC design. Without them, it's impossible to perform analysis, which in turn limits optimizations. Those optimizations are especially important as semiconductors become more heterogenous, more customized, and as they are integrated into larger systems, creating a need for higher-accuracy models that require massive compute power to develop. But those factors, and other... » read more

Next-Gen Design Challenges

By Ed Sperling - 20 Apr, 2021 - Comments: 0

As more heterogeneous chips and different types of circuitry are designed into one system, that all needs to be simulated, verified and validated before tape-out. Aveek Sarkar, vice president of engineering at Synopsys, talks with Semiconductor Engineering about the intersection of scale complexity and systemic complexity, the rising number of corners, and the reduced margin with which to buffe... » read more

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