Multi-Die Assemblies Complicate Parasitic Extraction


The shift from planar designs to multi-die assemblies with complex interconnects is transforming what had become almost an afterthought in the design process into a first-order challenge. Parasitics include things like inductance, capacitance, and resistance, which have become more problematic at advanced nodes due to increasing logic density, thinner interconnects and insulators, and a spik... » read more

The Best DRAMs For Artificial Intelligence


Artificial intelligence (AI) involves intense computing and tons of data. The computing may be performed by CPUs, GPUs, or dedicated accelerators, and while the data travels through DRAM on its way to the processor, the best DRAM type for this purpose depends on the type of system that is performing the training or inference. The memory challenge facing engineering teams today is how to keep... » read more

Measurements and Simulation-Based Characterization Of eFuses


In conventional safety systems, the off state can be assumed to be safe. With ADAS, this is no longer automatically the case. This makes it necessary to adopt new approaches to fuse protection, which will subsequently spread to other industries. Traditionally, the vehicle electrical system was protected by sacrificial fuses. These reliably disconnect the power supply in the event of overcurr... » read more

Challenges In Using Sub-7nm ICs In Automotive


The automotive industry is producing vehicles with increasing levels of real-time decision-making, enabled by thousands of ICs, sensors, and multi-chip packages, but making sure these systems work flawlessly throughout their expected lifetimes is a growing challenge. Automotive chips traditionally were developed at mature process nodes in five- to seven-year cycles, but much has changed over... » read more

How Secure Are Analog Circuits?


The move toward multi-die assemblies and the increasing value of sensor data at the edge are beginning to focus attention and raise questions about security in analog circuits. In most SoC designs today, security is almost entirely a digital concern. Security requirements in digital circuits are well understood, particularly in large data centers and at the upper end of edge computing, which... » read more

A Balanced Approach To Verification


First-time chip success rates are dropping, primarily due to increased complexity and attempts to cut costs. That means management must take a close look at their verification strategies to determine if they are maximizing the potential of their tools and staff. Using simulation to demonstrate that a design exhibits a required behavior has been the cornerstone of functional verification sinc... » read more

Optimizing Analog With Layout In The Loop


Meeting high-performance requirements at low power isn’t easy. What is already challenging in digital is even more complex in analog. After specification and block-level system concept, the analog design flow typically spends considerable time coming up with well-working schematic-level topologies. However, once layout parasitics become apparent through parasitic extraction, the seemingly opt... » read more

Die-to-die Interconnect Standards In Flux


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

Development Flows For Chiplets


Chiplets offer a huge leap in semiconductor functionality and productivity, just like soft IP did 40 years ago, but a lot has to come together before that becomes reality. It takes an ecosystem, which is currently very rudimentary. Today, many companies have hit the reticle limit and are forced to move to multi-die solutions, but that does not create a plug-and-play chiplet market. These ear... » read more

Analog Creates Ripples in Digital Verification


We live in an analog world, but analog has been minimized whenever possible. At some point digital and analog must come together in every electronic device, and that has long been an area where errors creep in. The Wilson Research Group and Siemens EDA functional verification study has long shown that analog and mixed signal are two of the highest causes of flaws that result in chip respins.... » read more

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