I recently discussed "Is Moore's Law dead? What happens if CPU speed does not keep up with our demands?" in my blog. Where doubling the number of transistors on a silicon device every two years was no longer possible. This is because the 22-nanometer limit in semiconductor substrate could not be reduced with current Transistor Technology. However, with Transistors entering the third dimension, this limit is no longer relevant as we can carry on doubling the number of transistors on a silicon device every two years in the third dimension. This is revealed in the latest news release by Intel.
It looks that Intel will be the first to feature 3D transistors and tri-gate technology. By optimizing the shape of the transistor at a nanometre level, Intel has made it possible to both reduce the size of individual transistors and improve their efficiency.
The new Transistors for 22 Nanometer Chips Have an Unprecedented Combination of Power Savings and Performance Gains. For the first time since the invention of silicon transistors over 50 years ago, transistors using a three-dimensional structure will be put into high-volume manufacturing. Intel will introduce a revolutionary 3-D transistor design called Tri-Gate, first disclosed by Intel in 2002, into high-volume manufacturing at the 22-nanometer (nm) node in an Intel chip codenamed "Ivy Bridge." A nanometer is one-billionth of a meter.
The three-dimensional Tri-Gate transistors represent a fundamental departure from the two-dimensional planar transistor structure that has powered not only all computers, mobile phones and consumer electronics to-date, but also the electronic controls within cars, spacecraft, household appliances, medical devices and virtually thousands of other everyday devices for decades.

Here are the Intel's News Release Highlights
- Intel announces a major technical breakthrough and historic innovation in microprocessors: the world's first 3-D transistors, called Tri-Gate, in a production technology.
- The transition to 3-D Tri-Gate transistors sustains the pace of technology advancement, fueling Moore's Law for years to come.
- An unprecedented combination of performance improvement and power reduction to enable new innovations across a range of future 22nm-based devices from the smallest handhelds to powerful cloud-based servers.
- Intel demonstrates a 22nm microprocessor – codenamed "Ivy Bridge" – that will be the first high-volume chip to use 3-D Tri-Gate transistors.
It can get confusing very quickly because there are a few technical terms being bandied about to describe the new transistor structure. Intel calls it generically 3D but technically it's a Tri-Gate transistor
It's necessary to sustain Moore's Law--doubling the number of transistors on a silicon device every two years. As device dimensions become prohibitively small, cramming in transistors in the traditional two-dimensional fashion becomes impossible. So, 3D or vertical transistors become necessary. And Intel isn't just talking about this theoretically; it's going to manufacture chips based on these transistors.
Intel will use this technology in next-generation "Ivy Bridge" processors (which will follow its current Sandy Bridge chips) will use this 3D transistor technology exclusively. In other words, Intel will quit making 2D transistors and move completely to 3D on Ivy Bridge. Ivy Bridge will go into commercial production at the end of this year and into large production volume in 2012.
The main significance is 22 nanometre is that Ivy Bridge will use 22-nanometer technology versus the 32-nanometer tech currently used on Sandy Bridge. In addition to the merits of 3D transistors described above, moving to a smaller geometry generally results in faster, more power efficient processors.
These will also more power-efficient designs. Intel's biggest challenge going forward isn't going to be speed but power efficiency. The 3D transistors enable chips to operate at lower voltage with lower leakage, providing both improved performance and energy efficiency compared to previous Intel chips.
Will this allow Intel to compete more effectively in the Smartphone and tablet world? And specially the U.K.-based ARM Holdings is Intel's new nemesis. ARM chips power most of the world's tablets and Smartphone’s, chiefly because of their power efficiency. Intel's 22nm 3D transistors provide up to a 37 percent performance increase at low voltage versus Intel's 32nm planar transistors. "This gain means that the transistors are ideal for use in small handheld devices, which operate using less energy to 'switch' back and forth. Alternatively, the new transistors consume less than half the power when at the same performance as 2D planar transistors on 32nm chips," according to Intel.
This is serious leap for Intel, and puts pressure on AMD, since low-power combos like Fusion have been its biggest advantage this year. AMD still has the lead in graphics (Intel isn’t even competitive there), but this major boost in efficiency by Intel could put them in danger on their home turf, things like all-in-ones and ultraportable laptops.
These advances probably won’t hurt Arms. A more efficient x86 architecture is still an x86 architecture, and right now ARM is so prevalent in the portable computing market (mobile, tablet, embedded) that even a large bump to Intel’s prospects like this would take years to propagate, during which time competitors like Nvidia (Intel co-nemesis) will continue to throw in with the non-x86 option. That said, Android is perhaps the most likely to break from the pack, but that depends entirely on manufacturers, not Google, ARM, or Intel.
Intel’s roadmap for the 22nm process first mentioned Ivy Bridge, the shrink-down of current Sandy Bridge Core processors. And then there’s the low-power segment, with “Future” entrants into the various portable segments of the market. Intel's recently-released Oak Trail generation of Atom processors will be succeeded by Clover Trail before the 22nm shift, However, it’s possible Intel could still make this happen by mid-2012. In the SmartPhone market currently, Intel is so marginalized that a push the mid-size segment with their low-power processors will be difficult, later try to shrink it further is somewhat the opposite of Google’s approach with Android.
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NEWS HIGHLIGHTS
Intel announces a major technical breakthrough and historic innovation in microprocessors: the world's first 3-D transistors, called Tri-Gate, in a production technology.
The transition to 3-D Tri-Gate transistors sustains the pace of technology advancement, fueling Moore's Law for years to come.
An unprecedented combination of performance improvement and power reduction to enable new innovations across a range of future 22nm-based devices from the smallest handhelds to powerful cloud-based servers.
Intel demonstrates a 22nm microprocessor – codenamed "Ivy Bridge" – that will be the first high-volume chip to use 3-D Tri-Gate transistors.
SANTA CLARA, Calif., May 4, 2011 – Intel Corporation today announced a significant breakthrough in the evolution of the transistor, the microscopic building block of modern electronics. For the first time since the invention of silicon transistors over 50 years ago, transistors using a three-dimensional structure will be put into high-volume manufacturing. Intel will introduce a revolutionary 3-D transistor design called Tri-Gate, first disclosed by Intel in 2002, into high-volume manufacturing at the 22-nanometer (nm) node in an Intel chip codenamed "Ivy Bridge." A nanometer is one-billionth of a meter.
The three-dimensional Tri-Gate transistors represent a fundamental departure from the two-dimensional planar transistor structure that has powered not only all computers, mobile phones and consumer electronics to-date, but also the electronic controls within cars, spacecraft, household appliances, medical devices and virtually thousands of other everyday devices for decades.
"Intel's scientists and engineers have once again reinvented the transistor, this time utilizing the third dimension," said Intel President and CEO Paul Otellini. "Amazing, world-shaping devices will be created from this capability as we advance Moore's Law into new realms."
Scientists have long recognized the benefits of a 3-D structure for sustaining the pace of Moore's Law as device dimensions become so small that physical laws become barriers to advancement. The key to today's breakthrough is Intel's ability to deploy its novel 3-D Tri-Gate transistor design into high-volume manufacturing, ushering in the next era of Moore's Law and opening the door to a new generation of innovations across a broad spectrum of devices.
Moore's Law is a forecast for the pace of silicon technology development that states that roughly every 2 years transistor density will double, while increasing functionality and performance and decreasing costs. It has become the basic business model for the semiconductor industry for more than 40 years.
Unprecedented Power Savings and Performance Gains
Intel's 3-D Tri-Gate transistors enable chips to operate at lower voltage with lower leakage, providing an unprecedented combination of improved performance and energy efficiency compared to previous state-of-the-art transistors. The capabilities give chip designers the flexibility to choose transistors targeted for low power or high performance, depending on the application.
The 22nm 3-D Tri-Gate transistors provide up to 37 percent performance increase at low voltage versus Intel's 32nm planar transistors. This incredible gain means that they are ideal for use in small handheld devices, which operate using less energy to "switch" back and forth. Alternatively, the new transistors consume less than half the power when at the same performance as 2-D planar transistors on 32nm chips.
"The performance gains and power savings of Intel's unique 3-D Tri-Gate transistors are like nothing we've seen before," said Mark Bohr, Intel Senior Fellow. "This milestone is going further than simply keeping up with Moore's Law. The low-voltage and low-power benefits far exceed what we typically see from one process generation to the next. It will give product designers the flexibility to make current devices smarter and wholly new ones possible. We believe this breakthrough will extend Intel's lead even further over the rest of the semiconductor industry."
Continuing the Pace of Innovation – Moore's Law
Transistors continue to get smaller, cheaper and more energy efficient in accordance with Moore's Law – named for Intel co-founder Gordon Moore. Because of this, Intel has been able to innovate and integrate, adding more features and computing cores to each chip, increasing performance, and decreasing manufacturing cost per transistor.
Sustaining the progress of Moore's Law becomes even more complex with the 22nm generation. Anticipating this, Intel research scientists in 2002 invented what they called a Tri-Gate transistor, named for the three sides of the gate. Today's announcement follows further years of development in Intel's highly coordinated research-development-manufacturing pipeline, and marks the implementation of this work for high-volume manufacturing.
The 3-D Tri-Gate transistors are a reinvention of the transistor. The traditional "flat" two-dimensional planar gate is replaced with an incredibly thin three-dimensional silicon fin that rises up vertically from the silicon substrate. Control of current is accomplished by implementing a gate on each of the three sides of the fin – two on each side and one across the top -- rather than just one on top, as is the case with the 2-D planar transistor. The additional control enables as much transistor current flowing as possible when the transistor is in the "on" state (for performance), and as close to zero as possible when it is in the "off" state (to minimize power), and enables the transistor to switch very quickly between the two states (again, for performance).
Just as skyscrapers let urban planners optimize available space by building upward, Intel's 3-D Tri-Gate transistor structure provides a way to manage density. Since these fins are vertical in nature, transistors can be packed closer together, a critical component to the technological and economic benefits of Moore's Law. For future generations, designers also have the ability to continue growing the height of the fins to get even more performance and energy-efficiency gains.
"For years we have seen limits to how small transistors can get," said Moore. "This change in the basic structure is a truly revolutionary approach, and one that should allow Moore's Law, and the historic pace of innovation, to continue."
World's First Demonstration of 22nm 3-D Tri-Gate Transistors
The 3-D Tri-Gate transistor will be implemented in the company's upcoming manufacturing process, called the 22nm node, in reference to the size of individual transistor features. More than 6 million 22nm Tri-Gate transistors could fit in the period at the end of this sentence.
Today, Intel demonstrated the world's first 22nm microprocessor, codenamed "Ivy Bridge," working in a laptop, server and desktop computer. Ivy Bridge-based Intel® Core™ family processors will be the first high-volume chips to use 3-D Tri-Gate transistors. Ivy Bridge is slated for high-volume production readiness by the end of this year.
This silicon technology breakthrough will also aid in the delivery of more highly integrated Intel® Atom™ processor-based products that scale the performance, functionality and software compatibility of Intel® architecture while meeting the overall power, cost and size requirements for a range of market segment needs.
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