Geo-Spatial Outlier Detection


Comparing die test results with other die on a wafer helps identify outliers, but combining that data with the exact location of an outlier offers a much deeper understanding of what can go wrong and why. The main idea in outlier detection is to find something in or on a die that is different from all the other dies on a wafer. Doing this in the context of a die’s neighbor has become easie... » read more

Week In Review: Auto, Security, Pervasive Computing


Security A new security annotation standard for hardware IP is now available for download at no cost. The board of directors of the Accellera Systems Initiative, the non-profit EDA- and IP-standards organization, approved the release of the Security Annotation for Electronic Design Integration (SA-EDI) Standard 1.0. The standard, developed by Accellera’s IP Security Assurance (IPSA) Working ... » read more

Massive IoT Interop Fuels Protocol Battle


Wireless standards are plentiful, but most are not capable of being scaled to the level of a smart city. As a result, such networks have been built application-by-application using proprietary stacks, often with non-interoperable network layers. That, in turn, has slowed the proliferation of dense wireless connectivity at scale. “In a hyper-connected world, connectivity choices are driv... » read more

Blog Review: July 14


Siemens EDA's Wei-Lii Tan considers the tradeoffs when running library characterization in the cloud and how to think about running CPUs in parallel, the cost of throughput, and runtime reductions. A Synopsys writer checks out the reduced blanking feature in HDMI 2.1, which can help reduce the transmission rate while keeping the resolution and refresh rate intact for higher resolution displa... » read more

Week In Review: Manufacturing, Test


Chipmakers and OEMs China has been working on compound semiconductors, such as gallium-nitride (GaN) and silicon carbide (SiC). Now, a China-backed company has taken a big step in the SiC and related markets. Chip supplier Nexperia, a subsidiary of China’s Wingtech Technology, has acquired Newport Wafer Fab (NWF), a U.K.-based manufacture of power and compound semiconductors, including Si... » read more

Reducing Power Delivery Overhead


The power delivery network (PDN) is a necessary overhead that typically remains in the background — until it fails. For chip design teams, the big question is how close to the edge are they willing to push it? Or put differently, is the gain worth the pain? This question is being scrutinized in very small geometry designs, where margins can make a significant difference in device performan... » read more

Lower Power Chips: What To Watch Out For


Low-power design in advanced nodes and advanced packaging is becoming a multi-faceted, multi-disciplinary challenge, where a long list of issues need to be solved both individually and in the context of other issues. With each new leading-edge process node, and with increasingly dense packaging, the potential for problematic interactions is growing. That, in turn, can lead to poor yield, cos... » read more

Best 112G SerDes IP Architecture


Real world operation of a serializer/deserializer (SerDes) in a hyperscale data center is very demanding and requires robust performance in challenging conditions such as multitude of channel insertion loss, extreme temperature cycles, different types of packages with different trace lengths and discontinuities, etc. Hence, meeting interference tolerance (ITOL) and jitter tolerance (JTOL) compl... » read more

Retimers Replacing Redrivers As Signal Speeds Increase


Retimers are undergoing a renaissance as new PHY protocols prove too demanding for redrivers. Redrivers and retimers both have been used to extend wired signal reach over the years. But redrivers have dominated this space due to their relative simplicity and lower cost. That balance is beginning to change. “A retimer represents three things no one wants in their system — area, cost, a... » read more

Blog Review: July 7


Cadence's Sangeeta Soni provides a primer on the PIPE SerDes architecture and some of the changes that can introduce verification challenges for SerDes compliant PHY and MAC devices. Siemens EDA's Chris Spear demystifies the $cast() method in SystemVerilog, which checks values at runtime rather than compile time, and gives some examples of when it is useful. Synopsys' Chris Clark warns th... » read more

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