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Batteries Take Center Stage


For any mobile electronic device, the biggest limiting factors are the size, age, type, and utilization of the batteries. Battery technology is improving on multiple fronts. The batteries themselves are becoming more efficient. They are storing more energy per unit of area, and work is underway to provide faster charging and to increase the percentage of that energy that can be used, as well... » read more

Challenges With Stacking Memory On Logic


Experts at the Table: Semiconductor Engineering sat down to discuss the changes in design tools and methodologies needed for 3D-ICs, with Sooyong Kim, director and product specialist for 3D-IC at Ansys; Kenneth Larsen, product marketing director at Synopsys; Tony Mastroianni, advanced packaging solutions director at Siemens EDA; and Vinay Patwardhan, product management group director at Cadence... » 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

Auto Power Becoming Much More Complex


Rising electronics content in automobiles is putting increased focus on automotive power delivery networks (PDNs). Safety implications mean that thorough power design and verification, along with novel power isolation techniques, are needed at the vehicle level, involving both electrical and mechanical considerations. The electronic takeover can be measured by the percentage that electronic ... » read more

Blog Review: Nov. 7


Arm's Shidhartha Das looks into maximizing the benefits of power delivery networks and explains a non-intrusive technique using an on-chip digital storage oscilloscope that can directly sample the power-rails to probe potential runtime bugs due to power delivery weaknesses. Synopsys' Snigdha Dua argues that scrambling is one of the most important features introduced in HDMI 2.0 and takes a l... » read more

Tech Talk: Power Sign-Off


Calvin Chow, area technical manager at Ansys, talks about power sign-off for complex SoCs at advanced nodes, including early stage prototyping, the importance of context, accurate power modeling of sub-blocks, and simulation of power-delivery networks. [youtube vid=MN4TjZ3dHVk] » read more

FinFET-Based Designs: Power Sign-off Considerations


FinFET devices can operate at ultra-low sub-1V nominal supply voltage levels without impacting their delays. This allows for low power, higher performance designs needed for many of todays’ applications. These devices also have considerably higher drive strengths, allowing faster operating speeds. However, this can result in more localized di/dt current scenarios, and when coupled with more r... » read more