How Many Cores? (Part 2)


New chip architectures and new packaging options—including fan-outs and 2.5D—are changing basic design considerations for how many cores are needed, what they are used for, and how to solve some increasingly troublesome bottlenecks. As reported in part one, just adding more cores doesn't necessarily improve performance, and adding the wrong size or kinds of cores wastes power. That has s... » read more

Timing Is Everything


It's easy to look back on companies or products that missed the market because they were too early. Remember the Eo? The brick-like personal digital assistant that AT&T introduced in 1993 had an antenna that hinted at 4G connectivity. Unfortunately, there was no 4G available at the time, so it was just an extra wire. (Check out the video of the tablet version here.) The EO 440 Personal... » read more

New Memory Approaches And Issues


New memory types and approaches are being developed and tested as DRAM and Moore's Law both run out of steam, adding greatly to the confusion of what comes next and how that will affect chip designs. What fits where in the memory hierarchy is becoming less clear as the semiconductor industry grapples with these changes. New architectures, such as [getkc id="202" kc_name="fan-outs"] and [getk... » read more

Is 2.5D Cheaper?


For the past several years, as 2.5D was being tested, the most common response from chipmakers and tools vendors was that the interposer used to connect various die in a package was far too expensive. It was basically the same argument as mask costs are rising too high to continue building complex planar SoCs at 16/14nm, or that FD-SOI is more expensive than bulk silicon at 28nm. The critici... » read more

Tech Talk: 2.5D Issues


Bill Isaacson, director of ASIC marketing at eSilicon, about how viable this packaging approach is, organic vs. inorganic interposers, where the problems are, thermal coupling, interposer cost, and what will change over the next couple years. » read more

Racing To Design Chips Faster


A shift is underway to develop chips for more narrowly defined market segments, and in much smaller production runs. Rather than focusing on shrinking features and reducing cost per transistor by the billions of units, the emphasis behind this shift is less about scale and much more about optimization for specific markets and delivering those solutions more quickly. As automotive, consumer e... » read more

How Healthy Is The Chip Market?


By Ed Sperling & Ann Steffora Mutschler The inclusion of semiconductors in more products across more market segments—many of which historically have not been large consumers of chips—is having a big impact on how they are designed and manufactured, as well as how they are tracked and quantified. In the past, semiconductor sales were so closely tied to the success of personal computers... » read more

Inside Advanced Packaging


Semiconductor Engineering sat down to discuss advanced IC-packaging, the OSAT industry, China and other topics with Ron Huemoeller, vice president of worldwide R&D at Amkor. What follows are excerpts of that conversation. SE: Where are we in advanced IC-packaging today? Huemoeller: We’ve hit the inflection point. Now we are coming to the other side of it. Regarding this need to int... » read more

Will 3D-IC Work?


Advanced packaging is becoming real on every level, from fan-outs to advanced fan-outs, 2.5D, and 3D-ICs for memory. But just how far 3D and monolithic 3D will go isn't clear at this point. The reason is almost entirely due to heat. In a speech at SEMI's Integrated Strategy Symposium in January, Babek Sabi, Intel corporate VP and director of assembly and test technology development, warned t... » read more

Thermal Damage To Chips Widens


Heat is becoming a much bigger problem for semiconductor and system design, fueled by higher density and the increasing use of complex chips in markets such as automotive, where reliability is measured in decade-long increments. In the past, heat typically was handled by mechanical engineers, who figured out where to put heat sinks, fans, or holes to funnel heat out of a chassis. But as more... » read more

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