HBM3 In The Data Center


Frank Ferro, senior director of product management at Rambus, talks about the forthcoming HBM3 standard, why this is so essential for AI chips and where the bottlenecks are today, what kinds of challenges are involved in working with this memory, and what impact chiplets and near-memory compute will have on HBM and bandwidth.     » read more

GUC GLink Test Chip Uses In-Chip Monitoring And Deep Data Analytics For High Bandwidth Die-To-Die Characterization


Advanced ASIC leader Global Unichip Corp (GUC) has developed GLink, a high-bandwidth, low-latency, and power-efficient die-to-die (D2D) interface. GLink offers the industry’s highest optimized interconnect solution for both CoWoS and InFO packaging technologies. The GUC and proteanTecs collaboration started with GUC’s second generation of GLink, known as GLink 2.0. The project target was... » read more

How Memory Design Optimizes System Performance


Exponential increases in data and demand for improved performance to process that data has spawned a variety of new approaches to processor design and packaging, but it also is driving big changes on the memory side. While the underlying technology still looks very familiar, the real shift is in the way those memories are connected to processing elements and various components within a syste... » read more

What Is UCIe?


The semiconductor industry is undertaking a major strategy shift towards multi-die systems. The shift is fueled by several converging trends: Size of monolithic SoCs is becoming too big for manufacturability Some SoC functionalities may require different process nodes for optimal implementation Desire for enhanced product scalability and composability is increasing Multi-die syste... » read more

Enabling Test Strategies For 2.5D, 3D Stacked ICs


Improved testability, coupled with more tests at more insertion points, are emerging as key strategies for creating reliable, heterogeneous 2.5D and 3D designs with sufficient yield.  Many changes need to fall into place to make side-by-side 2.5D and 3D stacking approaches cost-effective, particularly for companies looking to integrate chiplets from different vendors. Today, nearly all of t... » 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

What Future Processors Will Look Like


Mark Papermaster, CTO at AMD, sat down with Semiconductor Engineering to talk about architectural changes that are required as the benefits of scaling decrease, including chiplets, new standards for heterogeneous integration, and different types of memory. What follows are excerpts of that conversation. SE: What does a processor look like in five years? Is it a bunch of chips in a package? I... » read more

Standardizing Chiplet Interconnects


The chip industry is making progress on standardizing the infrastructure for chiplets, setting the stage for faster and more predictable integration of different functions and features from different vendors. The ability to choose from a menu of small, highly specialized chips, and to mix and match them for specific applications and use cases, has been on the horizon for more than a decade. ... » read more

Chiplets: Current Status


Recent weeks have seen a number of interesting developments in the area of chiplets. An increasing number of products based on chiplets have been brought to market, especially in the processors segment. For example, Apple and AMD now have processors with chiplets on the market and under production in high volumes. On one hand, this means that sufficient production capacity has now been built up... » read more

Clocks Getting Skewed Up


At a logical level, synchronous designs are very simple and the clock just happens. But the clocking network is possibly the most complex in a chip, and it's fraught with the most problems at the physical level. To some, the clock is the AC power supply of the chip. To others, it is an analog network almost beyond analysis. Ironically, there are no languages to describe clocking, few tools t... » read more

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