Bryon Moyer

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Bryon Moyer is a technology editor at Semiconductor Engineering.

Author's Latest Posts

Cooling Chips Still A Top Challenge
By Bryon Moyer - 22 May, 2025 - Comments: 0

Increasing levels of semiconductor integration means more work needs to be done in smaller spaces, which in turn generates more heat that needs to be dissipated. Managing heat dissipation in advanced node dies and in multi-die assemblies is critical to their functionality and their longevity. And while much of the focus has been on improving power efficiency, which reduces the rate of power ... » read more

Die-to-die Interconnect Standards In Flux
By Bryon Moyer - 15 May, 2025 - Comments: 0

UCIe, a standard for die-to-die interconnect in advanced packages, has drawn concern about being too heavyweight with its 2.0 release. But the fact that many of the new features are optional seems to have been lost in much of the public discussion. In fact, new capabilities that support a possible future chiplet marketplace are not required for designs that don’t target that marketplace. ... » read more

Can Chiplets Serve Cost-Conscious Apps?
By Bryon Moyer - 17 Apr, 2025 - Comments: 0

Chiplets are emerging as a significant new phase in the evolution of the semiconductor market, providing a way to continue scaling performance well beyond the size limitations of a reticle. But that improvement comes with a high price tag and a lot more complexity, which so far has limited adoption. One of the main reasons for the cost increase is the need for advanced packaging when employi... » read more

Advanced Packaging Fundamentals for Semiconductor Engineers
By Bryon Moyer - 14 Apr, 2025 - Comments: 2

Advanced packaging is inevitable. Large systems companies and processing vendors already are working with various types of highly engineered packaging. The rest of the semiconductor industry will follow at some point, whether they're designing their own packages, developing the tools, processes, materials, and methodologies to create them, or developing components that will be used inside of th... » read more

Implementing AI Activation Functions
By Bryon Moyer - 10 Apr, 2025 - Comments: 1

Activation functions play a critical role in AI inference, helping to ferret out nonlinear behaviors in AI models. This makes them an integral part of any neural network, but nonlinear functions can be fussy to build in silicon. Is it better to have a CPU calculate them? Should hardware function units be laid down to execute them? Or would a lookup table (LUT) suffice? Most architectures inc... » read more

What Exactly Are Chiplets And Heterogeneous Integration?
By Bryon Moyer - 20 Mar, 2025 - Comments: 1

The terms “chiplet” and “heterogeneous integration” fill news pages, conference papers, and marketing presentations, and for the most part engineers understand what they're reading. But speakers sometimes stumble during a presentation trying to figure out whether a particular die qualifies as a chiplet, and heterogeneous integration comes in different guises for different people. Both t... » read more

New Data Center Protocols Tackle AI
By Bryon Moyer - 17 Mar, 2025 - Comments: 0

Compute nodes in AI and HPC data centers increasingly need to reach out beyond the chip or package for additional resources to process growing workloads. They may commandeer other nodes in a rack (scale-up) or employ resources in other racks (scale-out). The problem is there currently is no open scale-up protocol. So far this task has been dominated by proprietary protocols, because much of ... » read more

Linear Pluggable Optics Save Energy In Data Centers
By Bryon Moyer - 24 Feb, 2025 - Comments: 0

Linear pluggable optics (LPO) is garnering more attention as a way to quickly and efficiently move data in and out of server racks, but a lack of standards for connecting the optical modules is slowing adoption at a time when there is growing pressure to reduce power in data centers. LPO is the newest of two approaches to solving the power wall problem in data centers. Co-packaged optics (CP... » read more

Normalization Keeps AI Numbers In Check
By Bryon Moyer - 13 Feb, 2025 - Comments: 0

AI training and inference are all about running data through models — typically to make some kind of decision. But the paths that the calculations take aren’t always straightforward, and as a model processes its inputs, those calculations may go astray. Normalization is a process that can keep data in bounds, improving both training and inference. Foregoing normalization can result in at... » read more

Assembly Design Rules Slowly Emerge
By Bryon Moyer - 27 Jan, 2025 - Comments: 0

Process design kits (PDKs) play an essential in ensuring that silicon technology can proceed from one generation to the next in a manner that design tools can keep up with. No such infrastructure has been needed for packaging in the past, but that's beginning to change with advanced packages. Heterogeneous assemblies are still ramping up, but their benefits are attracting new designs. “Chi... » read more

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