Design Reuse Vs. Abstraction


Chip designers have been constantly searching for a hardware description language abstraction level higher than RTL for a few decades. But not everyone is moving in that direction, and there appear to be enough options available through design reuse to forestall that shift for many chipmakers. Pushing to new levels of abstraction is frequent topic of discussion in the design world, particula... » read more

Searching For A System Abstraction


Without abstraction, advances in semiconductor design would have stalled decades ago and circuits would remain about the same size as analog blocks. No new abstractions have emerged since the 1990s that have found widespread adoption. The slack was taken up by IP and reuse, but IP blocks are becoming larger and more complex. Verification by isolation is no longer a viable strategy at the system... » read more

Backchannel Modeling And Simulation Using Recent Enhancements To The IBIS Standard


Recent enhancements to the upcoming IBIS standard now support backchannel training, enabling IBIS-AMI models to emulate this real-world SerDes behavior. AMI modelers now can incorporate backchannel algorithms into their IBIS-AMI models, automating the optimization of transmitter and receiver equalization settings in the same manner as their actual SerDes hardware devices. This saves system desi... » read more

Merging Verification With Validation


Verification and validation are two important steps in the creations of electronic systems and over time their roles, but how they play together is changing. In fact, today we are seeing a major opportunity for rethinking this aspect of the flow, which could mean the end of them as separate tasks for many of the chips being created. As with many things in this industry, however, squeezing it... » read more

Tech Talk: 5/3nm Parasitics


Ralph Iverson, principal R&D engineer at Synopsys, talks about parasitic extraction at 5/3nm and what to expect with new materials and gate structures such as gate-all-around FETs and vertical nanowire FETs. https://youtu.be/24C6byQBkuI » read more

Signal Integrity Methodology For Double-Digit Multi-Gigabit Interfaces


As data rates for serial link interfaces such as PCI Express (PCIe) Gen 4 move into the double digits, device modeling, interconnect modeling, and analysis methodologies must continue to evolve to address the shrinking design margins and increasingly challenging compliance criteria facing today’s engineers. To mitigate risk and optimize designs, it is critical to move analysis as far upstream... » read more

Preparing For Electromagnetic Crosstalk Challenges


By Magdy Abadir and Anand Raman Electromagnetic (EM) coupling/noise is not a new phenomenon, but increasing bandwidth and decreasing size, along with low-power demands of today’s electronic systems is making EM crosstalk a first order challenge. At clock frequency of 10GHz+ and data rate of 10Gbps+, parasitic inductance and inductive coupling that were previously safe to ignore are no long... » read more

Co-modeling: A Powerful Capability For Hardware Emulation


Understanding co-modeling technology, its impact on verification and validation should be a critical aim for anyone selecting and deploying emulation co-modeling resources. This paper explores how emulation co-modeling — specifically for the Veloce Strato emulation platform from Mentor, a Siemens business — is architected to meet the needs of advanced verification and validation. To rea... » read more

Reducing BEOL Parasitic Capacitance Using Air Gaps


Reducing back-end-of-line (BEOL) interconnect parasitic capacitance remains a focus for advanced technology node development. Porous low-k dielectric materials have been used to achieve reduced capacitance, however, these materials remain fragile and prone to reliability concerns. More recently, air gap has been successfully incorporated into 14nm technology [1], and numerous schemes have b... » read more

Verifying AI, Machine Learning


[getperson id="11306" comment="Raik Brinkmann"], president and CEO of [getentity id="22395" e_name="OneSpin Solutions"], sat down to talk about artificial intelligence, machine learning, and neuromorphic chips. What follows are excerpts of that conversation. SE: What's changing in [getkc id="305" kc_name="machine learning"]? Brinkmann: There’s a real push toward computing at the edge. ... » read more

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