Hot Stuff


By Ann Steffora Mutschler When it comes to thermal modeling, which has been practiced for many years, the challenges are daunting. The good news is that approaches are emerging as challenges increased with smaller process nodes and design complexity. Viewed from a number of viewpoints—transistor, chip, package, board and system—thermal models traditionally have been created from m... » read more

Good Times For Analog Designers


By Ann Steffora Mutschler For a number of technological reasons, analog/mixed-signal design and low-power design are converging, and with that comes both challenges and opportunities. As far as challenges go, process variations at 14nm, 20nm and even 28nm have increased significantly to include DFM impacts such as layout-delay effects. On the digital side, those process changes affect... » read more

Raising The Stakes For IP


By Ed Sperling As the amount of IP in an SoC increases, so do the number of players who want to strengthen their position in this market. The big acquisitions that began several years ago over time have proved to be just opening salvos—something that was impossible to predict when this shift began. Synopsys’ purchase of Virage Logic and Cadence’s purchase of Denali, both of which occu... » read more

Too Hot To Handle


By Ann Steffora Mutschler It used to be that a device could be designed to a thermal design power. The worst case power scenario would be imagined, and the device would be designed with that in mind. But those good old days are gone. Especially for consumer devices, how a device is going to behave with respect to time, or how people are going to use it, must be understood as completely a... » read more

Managing Electrical Communications Better


By Ann Steffora Mutschler Managing the electrical components of signal paths between IC, package, board and system is no small task, and it’s only growing in complexity. Understanding how to correctly optimize the communications within a system is critical given that the I/O power is becoming a significant portion of the overall chip power as the number of bits and the speed at which t... » read more

New Issues In Signoff


By Ed Sperling Signoff has always been a challenge at every stage of an SoC design flow. No matter how good a design looks, or how well a prototype works, there are still problems that can crop up at any stage of the design flow all the way into manufacturing that can leave engineering teams shaking their heads. Even at mainstream process nodes, respins are common. At advanced nodes—part... » read more

Sprint To The Finish Line


By Ed Sperling Low-Power/High-Performance Engineering sat down to discuss future challenges, pain points, and how the supply chain is being reconfigured with Chi-Ping Hsu, senior vice president for R&D in the Silicon Realization Group at Cadence. What follows are excerpts of that conversation. LPHP: Has the move to 20nm processes with 14nm finFETs progressed as smoothly as everyone hop... » read more

Tradeoffs On The Fly


By Ann Steffora Mutschler With classical bulk planar technology no longer shrinkable, the industry has been honing in on new ways to continue some scaling, achieve extra speed or better power while minimizing leakage. “To overcome the limits [of bulk planar technology] we need a different solution,” explained Giorgio Cesano, technology R&D marketing director at STMicroelectron... » read more

It’s Transition Time Again


By Ed Sperling After decades of shrinking features, developing new software on every level and engineering huge improvements in energy efficiency and performance, the semiconductor industry has reached a crossroads. To get to the next level will require massive improvements on all fronts, but not all consumers will be willing to pay for them. For example, if a battery lasts an entire day f... » read more

Embedded Power Management Challenges Grow


By Ann Steffora Mutschler Power management always has been, and will continue to be, a big issue with electronic devices. But when it comes to power management in embedded systems—controlling battery power in a smartphone, an industrial automation or automotive application, among a myriad of other options—the approaches come with different variables. For example, deeply embedded s... » read more

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