Accellera Preps New Standard For Clock-Domain Crossing


Part of the hierarchical development flow is about to get a lot simpler, thanks to a new standard being created by Accellera. What is less clear is how long will it take before users see any benefit. At the register transfer level (RTL), when a data signal passes between two flip flops, it initially is assumed that clocks are perfect. After clock-tree synthesis and place-and-route are perfor... » read more

2023: A Good Year For Semiconductors


Looking back, 2023 has had more than its fair share of surprises, but who were the winners and losers? The good news is that by the end of the year, almost everyone was happy. That is not how we exited 2022, where there was overcapacity, inventories had built up in many parts of the industry, and few sectors — apart from data centers — were seeing much growth. The supposed new leaders we... » read more

Chiplets: Deep Dive Into Designing, Manufacturing, And Testing


Chiplets are a disruptive technology. They change the way chips are designed, manufactured, tested, packaged, as well as the underlying business relationships and fundamentals. But they also open the door to vast new opportunities for existing chipmakers and startups to create highly customized components and systems for specific use cases and market segments. This LEGO-like approach sounds ... » read more

Is UCIe Really Universal?


Chiplets are rapidly becoming the means to overcome the slowing of Moore's Law, but whether one interface is capable of joining them all together isn't clear yet. The Universal Chiplet Interconnect Express (UCIe) believes it will work, but some in the industry remain unconvinced. At least part of the problem is that interconnect standards are never truly finished. Even today, the protocols tha... » read more

Heterogenous Integration Creating New IP Opportunities


The design IP market has long been known for constant change and evolution, but the industry trend toward heterogenous integration and chiplets is creating some new challenges and opportunities. Companies wanting to stake out a claim in this area have to be nimble, because there will be many potential standards introduced, and they are likely to change quickly as the industry explores what is r... » read more

Missing Interposer Abstractions And Standards


The design and analysis of an SoC based on an interposer is not for the faint of heart today, but the industry is aware of the challenges and is attempting to solve them. Until that happens, however, it will be a technique that only large companies can deploy because they need to treat everything almost as if it were a single die. The construction of large systems uses techniques, such as ab... » read more

Waiting For Chiplet Standards


The need and desire for chiplets is increasing, but for most companies that shift will happen slowly until proven standards are in place. Interoperability and compatibility depend on many layers and segments of the supply chain coming to agreement. Unfortunately, fragmented industry requirements may lead to a plethora of solutions. Standards always have enabled increasing specialization. ... » read more

Emerging Apps And Challenges For Packaging


Advanced packaging is playing a bigger role and becoming a more viable option to develop new system-level chip designs, but it also presents chipmakers with a confusing array of options and sometimes a hefty price tag. Automotive, servers, smartphones and other systems have embraced advanced packaging in one form or another. For other applications, it's overkill, and a simpler commodity pack... » read more

One SerDes Solution Doesn’t Fit All


Way back in the 1960s, E. Rent, who was working at IBM at the time, noticed a connection between the number of pins P on integrated circuits being used and the number of gates G on the integrated circuits. It was a power law, where the number of pins was cGR where c and R are constants. Actually, traditionally a Greek rho is used instead of R. It usually has a value between 0.5 and 0.8. If R... » read more

Memory Access In AI Systems


Memory access is a key consideration in AI system design. Ron Lowman, strategic marketing manager for IP at Synopsys, talks about how memory affects overall power consumption, why partitioning of on-chip and off-chip is so critical to performance and power, and how this changes from the cloud to the edge. » read more

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