How Many Cores? (Part 1)


The optimal number of processor cores in chip designs is becoming less obvious, in part due to new design and architectural options that make it harder to draw clear comparisons, and in part because just throwing more cores at a problem does not guarantee better performance. This is hardly a new problem, but it does have a sizable list of new permutations and variables—right-sized heteroge... » read more

7nm Lithography Choices


Chipmakers are ramping up their 16nm/14nm logic processes, with 10nm expected to move into early production later this year. Barring a major breakthrough in lithography, chipmakers are using today’s 193nm immersion and multiple patterning for both 16/14nm and 10nm. Now, chipmakers are focusing on the lithography options for 7nm. For this, they hope to use a combination of two technologies ... » read more

Back Doors Are Everywhere


By Ernest Worthman & Ed Sperling Back doors have been a part of chip design since the beginning. One of the first open references was in the 1983 movie "War Games," which features a young computer whiz who uses one to hack into a computer that controls the United States' nuclear arsenal. In reality, modern back doors predate Hollywood's discovery by about 20 years, starting in 1965 wi... » read more

Consolidation Hits OSAT Biz


The outsourced semiconductor assembly and test (OSAT) industry is undergoing a new wave of acquisition activity that will dramatically reshape the packaging and test services markets. [getkc id="83" kc_name="OSATs"] have seen a considerable amount of consolidation over the years, but the industry needs a scorecard to keep track of the recent deals and the resulting fallout. One OSAT deal inv... » 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

What Is Cyberwarfare?


Cyberwarfare is emerging as the most sophisticated battleground of the 21st century. In fact, the military in all major countries make it a priority. Collectively they are spending tens of billions of dollars on education and building a knowledgebase of how attacks can be perpetrated and what defenses are needed. The entire effort is based on technology, both legacy and new, starting on the ... » read more

Are Chips Getting More Reliable?


Reliability is emerging as a key metric in the semiconductor industry, alongside of power, performance and cost, but it also is becoming harder to measure and increasingly difficult to achieve. Most large semiconductor companies look at reliability in connection with consumer devices that last several years before they are replaced, but a big push into automotive, medical and industrial elec... » read more

Will 5nm Happen?


Chipmakers are ramping up their 16/14nm finFET processes, with 10nm finFETs expected to ship sometime in late 2016 or early 2017. So what’s next? The foundries can see a path to extend the finFET transistor to 7nm, but the next node, 5nm, is far from certain and may never happen. Indeed, there are several technical and economic challenges at 5nm. And even if 5nm happens, only a few compani... » read more

Transistor-Level Verification Returns


A few decades ago, all designers did transistor-level verification, but they were quite happy to say goodbye to it when standard cells provided isolation at the gate-level and libraries provided all of the detailed information required, such as timing. A few dedicated people continued to use the technology to provide those models and libraries and the most aggressive designs that wanted to stri... » read more

Changes In Chip Design


We all know that sub-10nm is coming. But is that really what will define the next generation of semiconductors? Progress in semiconductor technology increasingly is not just about advancements in the hardware. It also involves advancements in applications and technologies peripheral to the devices themselves. That may sound counterintuitive, but going forward the technology, applications and... » read more

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