Managing Power Dynamically


Design teams are beginning to consider dynamic power management techniques as a way of pushing the limits on performance and low power, leveraging approaches that were sidelined in the past because they were considered too difficult to deploy. Dynamic voltage and frequency scaling (DVFS), in particular, has resurfaced as a useful approach. Originally intended to dynamically balance performan... » read more

Power Complexity On The Rise


New chip architectures and custom applications are adding significant challenges to chip design and verification, and the problems are becoming much more complex as low power is added into the mix. Power always has been a consideration in design, but in the past it typically involved different power domains that were either on, off, or in some level of sleep mode. As hardware architectures s... » read more

Power Reduction In A Constrained World


Back when 40-28nm were new, leakage power for wireless designs dominated the optimization technology focus. This led to multiple VT optimization and power intent management for digital designs to minimize or shut off leakage. As wireless devices moved to FinFET nodes, dynamic power became dominant. As a result, optimization technology focus shifted to build up dynamic techniques to complement y... » read more

Electromagnetic Crosstalk Considerations In Low Power Designs


By Magdy Abadir, Padelis Papadopoulos, and Yehea Ismail
 Power consumption continues to be a critical design metric in high-performance mobile electronics. In order to meet the aggressive power budget targets, chips today need to operate at extremely low power levels, which increases the critical signals’ susceptibility to electromagnetic (EM) crosstalk effects. Because a low-power So... » read more

Alchip Minimizes Dynamic Power For High-Performance Computing ASICs


Alchip, a fabless ASIC provider, focuses on high-performance computing ASICs. They decided to undertake a new project where they would employ the PowerPro RTL Low-Power Platform to reduce dynamic power consumption within their unique fishbone clock tree methodology. Could they achieve better power results using PowerPro and could they integrate the tool within their team and the existing design... » read more

Lots Of Little Knobs For Power


Dynamic power is becoming a much bigger worry at new nodes as more finFETs are packed on a die and wires shrink to the point where resistance and capacitance become first-order effects. Chipmakers began seeing dynamic power density issues with the first generation of [getkc id="185" kc_name="finFETs"]. While the 3D transistor structures reduced leakage current by providing better gate contro... » read more

Building Faster Chips


By Ed Sperling and Jeff Dorsch An explosion in IoT sensor data, the onset of deep learning and AI, and the commercial rollout of augmented and virtual reality are driving a renewed interest in performance as the key metric for semiconductor design. Throughout the past decade in which mobility/smartphone dominated chip design, power replaced performance as the top driver. Processors ha... » read more

Executive Insight: Grant Pierce


Grant Pierce, president and CEO of Sonics, sat down with Semiconductor Engineering to discuss new ways to increase energy efficiency in SoCs. What follows are excerpts of that conversation. SE: Looking out at the semiconductor industry there are a lot of changes underway right now. What are the biggest impacts from your perspective? Pierce: The amount of data that is being captured or sen... » read more

Near-Threshold Computing


The emergence of the Internet of Things (IoT) has brought a lot of attention to the need for extremely low-power design, and this in turn has increased the pressure for voltage reduction. In the past, each new process node shrunk the feature size and lowered the nominal operating voltage. This resulted in a drop in power consumption. However, the situation changed at about 90nm in two ways. ... » read more

An Introduction to Reducing Dynamic Power Using PowerPro


At many companies, the job of power reduction is left to power experts. These experts have built up knowledge and methodologies over many years, which they repeatedly apply to designs in their groups. This approach is very narrow and it not scalable across multiple groups in the company. Companies have begun to realize the limitations of this approach. More and more RTL designers are being task... » read more

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