category: Top Stories

category: Auto, Security & Edge AI

The Problem With Clocks
By Brian Bailey - 13 Apr, 2017 - Comments: 1

The synchronous digital design paradigm has enabled us to design circuits that are well controlled, but that is only true if the clocks themselves are well controlled. While overdesign techniques ensured that to be the case in early ASIC development, designs today cannot afford such luxuries. As we strive for lower power and higher operating frequencies, the clock has become a critical desig... » read more

Managing Voltage Drop At 10/7nm
By Ann Mutschler - 13 Apr, 2017 - Comments: 0

Power integrity is becoming a bigger problem at 10/7nm because existing tools such as static analysis no longer are sufficient. Power integrity is a function of static and dynamic voltage drop in the power delivery network. And until recently, static analysis did an effective job in measuring the overall robustness of PDN connectivity. As such, it is a proxy for PDN strength. The problem is ... » read more

Electric Vehicles Set The Pace
By Gale Morrison - 13 Apr, 2017 - Comments: 0

Electric vehicles are leading the charge for innovation in automotive electronics. Companies that invested and embraced the challenge of EVs are besting their less-nimble, less-open-minded engineering cohorts. Semiconductors and embedded computers have been controlling the dashboard, mirrors, seats, heating and cooling for years. But with EVs, engineering teams are starting to tackle tas... » read more

HBM Upstages DDR In Bandwidth, Power
By Ann Mutschler - 30 Mar, 2017 - Comments: 1

For graphics, networking, and high performance computing, the latest iteration of high-bandwidth memory (HBM) continues to rise up as a viable contender against conventional DDR, GDDR designs, and other advanced memory architectures such as the Hybrid Memory Cube. [getkc id="276" kc_name="HBM"] enables lower power consumption per I/O and higher bandwidth memory access with a more condensed f... » read more

Power Impacting Cost Of Chips
By Brian Bailey - 15 Mar, 2017 - Comments: 0

The increase in complexity of the power delivery network (PDN) is starting to outpace increases in functional complexity, adding to the already escalating costs of modern chips. With no signs of slowdown, designers have to ensure that overdesign and margining do not eat up all of the profit margin. The semiconductor industry is used to problems becoming harder at smaller geometries, but unti... » read more

Antenna Design Grows Up
By Ann Mutschler - 09 Mar, 2017 - Comments: 2

Apple’s iPhone 4 antenna issue represents a classic example of what can go wrong in modern antenna design. Put one in the wrong place, and a seemingly insignificant part can turn a cool new product into a public relations nightmare. Ever since antennas dropped out of sight, most consumers don't give them a second thought. In the 1960s, almost every home had a rooftop antenna. Fast forward ... » read more

The Ultimate Shift Left
By Brian Bailey - 09 Mar, 2017 - Comments: 0

Floorplanning is becoming much more difficult due to a combination of factors—increased complexity of the power delivery network, lengthening of clock trees, rising levels of communication, and greater connectedness of [getkc id="81" kc_name="SoC"]s coupled with highly constrained routing resources. The goal of floorplanning is to determine optimal placement of blocks on a die. But connect... » read more

Worst-Case Results Causing Problems
By Ed Sperling - 09 Mar, 2017 - Comments: 0

The ability of design tools to identify worst-case scenarios has allowed many chipmakers to flag potential issues well ahead of tapeout, but as process geometries shrink that approach is beginning to create its own set of issues. This is particularly true at 16/14nm and below, where extra circuitry can slow performance, boost the amount of power required to drive signals over longer, thinne... » read more

Test More Complex For Cars, IoT
By Ann Mutschler - 15 Feb, 2017 - Comments: 0

With increasing focus on safety-critical semiconductors—driven by ADAS, IoT, and security—functional safety concerns are going through the roof. Engineering teams are scrambling to determine how to conduct better in-field or online testing because test no longer can be an afterthought. This has been a common theme across the automotive ecosystem for the past few years, and as the automot... » read more

New Memories And Architectures Ahead
By Brian Bailey - 13 Feb, 2017 - Comments: 4

Memory dominates many SoCs, and it is rare to hear that a design contains too much memory. However, memories consume a significant percentage of system power, and while this may not be a critical problem for many systems, it is a bigger issue for Internet of Things ([getkc id="76" kc_name="IoT"]) edge devices where total energy consumption is very important. Memory demands are changing in al... » read more

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