Preparing For 3D IC Stacking


By David Lammers Through-silicon vias (TSVs) are in various stages of late development, but design and manufacturing challenges remain before companies can gain the full benefits of the third dimension. Two camps are pushing hard to introduce TSVs—the design community and the manufacturing equipment companies. The initial goal is to connect graphics memories to graphics processors in mobi... » read more

Why Open Source Matters


By Ann Steffora Mutschler A huge effort has been under way to create virtual prototypes that allow true hardware/software co-design, but there are still a number of pieces missing. One significant missing element is a full library of IP models to guide the process, and the solution could come from an unlikely place—open source developers. Today, ‘open source’ IP generally seems to be ... » read more

ESL Requires New Approaches To Design And Verification


By Ann Steffora Mutschler As more data gets front loaded into SoC architectures today, understanding verification challenges as well as communication between the front and back end has never been more critical. “All of this is getting more complicated,” said John Ford, director of marketing at ARM. “There was a time when an ARM processor core was all that was on a chip. Now there’s ... » read more

New Standards For Connectivity


By Pallab Chatterjee The last couple of months have been busy for data transfer standards. Consider the following moves: Power Line Communication (PLC) has become a new standard by the IEEE and has two groups promoting it: HD-PLC and Home Plug Alliance. Bluetooth also has made progress with the draft of the new Bluetooth Low Energy Technology as part of the July version 4 specificatio... » read more

‘Good’ Vs. ‘Good Enough’


By Ed Sperling The decision for when a chip is ready for tapeout is changing—both in time and sometimes in terms of who’s actually making that decision—as the amount of software being developed by hardware companies continues to grow. At the root of this shift are two very different concepts about what constitutes a market-ready product. For SoC engineers, fixing bugs after a chip has... » read more

End User Report: EDA Industry Realignment


By Ann Steffora Mutschler The EDA industry has seen a number of large acquisitions as of late, most notably of Denali by Cadence, as well as CoWare, VaST and Virage Logic which were acquired by Synopsys, but just what impact does this realignment have on the biggest EDA customers? Commenting on these changes is Jean-Marc Chateau, director of system platforms and tools at STMicroelectronics, ... » read more

Design For Variability


By Ed Sperling Faced with shrinking margins, manufacturing process fluctuations that could mean one more or one less atom in a transistor and proximity issues in layout the most advanced chipmakers have begun designing for variability. Rather than working with fixed numbers, such as voltage, power and area, the goal of DFV is basically averaging all of these numbers. While this includes som... » read more

Connecting The Pieces


By Ann Steffora Mutschler With the amount of IP blocks being integrated in SoCs today – in some cases as many as 100 blocks in a single chip – SoC design methodologies are shifting to address the new challenges this complexity brings. The good news is that these integration challenges has put the spotlight on the issues—along with the skyrocketing development costs for the creation, qual... » read more

AMS Reference Flow 1.0: Ready For Prime Time?


By Pallab Chatterjee TSMC recently announced a game-changing flow for 32nm/28nm Analog Mixed Signal (AMS) design. The AMS flow 1.0 includes tools from multiple vendors that are sequenced to take a design from concept and device creation all the way to release to being included as IP in an SoC. The flow that is being offered is a departure from traditional custom analog and custom AMS design. ... » read more

Stressing Over 3D


By David Lammers Pol Marchal recalls putting a stacked 3D prototype on his desk at IMEC in Leuven, Belgium, last year, which a visitor picked up and examined two months later. “I don’t think this chip will work,” the visitor said, causing Marchal, principal scientist at IMEC’s 3D system integration program, to put the stacked die under a microscope. Sure enough, Pol found that mechanic... » read more

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