There are two kinds of CEOs: Those who love the spotlight and those who hate it. Paul Otellini, chief executive officer of Intel, falls into the latter category. But in January, as he stood in front of several thousand people at the Consumer Electronics Show in Las Vegas, Otellini didn’t seem to mind the attention. In a Steve Jobs-like moment, he pulled a shiny four-inch smartphone out of his pocket and held it up for the audience to see. The device had plenty of bells and whistles, including front- and back-facing cameras and an HDMI output for high-resolution video.
Most striking of all was what the audience couldn’t see: the tiny Intel microprocessor — called Medfield — inside. The phone wasn’t for sale (it was a prototype Intel had put together), but the crowd cheered anyway. After years of delays and missteps, Intel, it seemed, finally had a viable product to show for its efforts in mobile phones.
“Would I have liked to be earlier? Yes,” Otellini told Fortune in an interview at the company’s Silicon Valley headquarters the week after his Las Vegas keynote. “Do I think this is a problem entering today? No, I think we’re in the beginning of this thing. We have the opportunity to redefine what computing means in your pocket, and I don’t see any other player in the industry with that potential.”
Intel INTC , with $54 billion in annual revenue, is the biggest chipmaker in the world. It employs 100,000 workers, including some of the brightest minds in the semiconductor industry. But when it comes to powering mobile phones, Intel is nowhere. Not a single commercially available mobile phone uses an Intel processor, and that’s no small problem, since much of the world is increasingly using mobile phones — and tablets — to do tasks once performed on desktops and laptops.
Intel’s prowess in building brawny, high-powered chips has been its biggest obstacle to cracking the mobile world, which requires low-power processors. A year and a half ago Otellini decided that Intel needed managers and engineers with hard-core mobile experience. He hired Mike Bell, an executive from Palm and Apple AAPL who had contributed to the development of the iPhone. Bell, who now co-leads Intel’s newly formed mobile and communications group, was charged with building a prototype, or reference design, that would show manufacturers what Intel could do in mobile. The device, which used the Medfield chip, became known internally as FFRD, short for form factor reference design (sexy code names are not Intel’s forte), and it paved the way for manufacturers like Lenovo and Motorola MMI to commit to launching Intel-powered devices sometime this year.
But Otellini knew he needed to do more than make a few key hires. In August 2010, Intel bought the wireless-solutions business from German chipmaker Infineon for $1.4 billion, giving Intel a foothold in baseband processors (a component that manages the 3G radio functions in a smartphone) and about 4,000 employees who know mobile devices.
For Otellini, getting it right in wireless isn’t just about diversifying revenue or driving the company into growing markets (though that’s part of it). Otellini’s mobile gambit is about redemption. Since becoming CEO in 2005, Otellini has stubbornly insisted that Intel could develop its own chips based on x86, the company’s historic microprocessor design standard, instead of licensing technology from the British company ARM Holdings, as most of his competitors have. So far his bet hasn’t paid off. The company proclaimed that its Moorestown system-on-a-chip would be in smartphones in early 2011, but instead it is mostly used in robotics and netbooks.
Ironically, Intel used to manufacture ARM processors for early smartphones and PDAs like the Palm Treo. But in 2006, Otellini sold its entire mobile product line, called XScale, to Marvell Technology Group for $600 million, essentially cutting off its access to mobile devices. And that wasn’t Intel’s only questionable move in mobile. In 2010, Otellini decided to partner with Nokia to develop MeeGo, a Linux-based operating system. A year later Nokia NOK ditched the project and opted to adopt Microsoft’s MSFT Windows Phone instead. Intel changed course and in September picked a new partner: Google GOOG . Intel software developers worked to make sure that Android could run on the company’s chips without a glitch.
Pairing up with the world’s fastest-growing operating system is a smart move for Otellini (who has been on Google’s board since 2004). But there’s little question Intel has a lot of catching up to do. “The perception is that they’ve overpromised and underdelivered,” says Raj Seth, an analyst with Cowen Group.
Meanwhile the rest of the industry has moved ahead. Processors designed using ARM Holdings’ technology now power 90% of smartphones. Qualcomm QCOM leads the pack with 51% market share (see chart below).
Otellini insists the MeeGo debacle put Intel behind schedule by just two months. And when it comes to chip-manufacturing technology, he contends that Intel is about three years ahead of the competition.
Intel’s nine semiconductor factories churn out a collective 10 billion transistors per second. Its latest and greatest fabrication plant, called D1X, is in Hillsboro, Ore., about 20 miles west of Portland. D1X is one of the biggest construction projects in Oregon’s history. When the state-of-the-art facility opens next year, it will be the first 14-nanometer factory in the world. And it will have cost Intel upwards of $5 billion.
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Keeping up with Moore’s law, which states that the number of transistors incorporated in a chip will approximately double every 24 months, is an expensive business that requires Intel to constantly invest in new manufacturing technologies and build new plants. But beyond the PC, it’s not clear how much that manufacturing lead is helping. The biggest facilities making ARM-designed processors today are based on a less advanced process than the one Intel uses to make its Medfield chip, for example, yet that hasn’t stopped the competition from eating Intel’s lunch. “Intel has tried to bring the same tools that have made it successful in the past to mobile, and it’s not working,” says Piper Jaffray analyst Gus Richard.
PCs still account for 66% of Intel’s revenue, and while Otellini is making an aggressive push in mobile, he’s also trying to breathe new life into Intel’s computer business by promoting ultrabooks, the latest breed of lightweight, instant-on laptops (a.k.a. the PC version of a MacBook Air). But there’s no doubt that mobile is where the real growth is. The market for mobile-phone chips will grow 40%, to $29.9 billion, by 2015, according to the Linley Group, a research firm.
Otellini has said that he expects to have Intel chips in 50% of the tablet market and 20% of smartphones by 2015. It’s an ambitious goal, but not impossible. The company is big enough and rich enough to eventually convert customers to its camp — as it did in 2005, getting Apple to use its Core Duo chip. “They’re very well resourced,” concedes Warren East, CEO of rival ARM Holdings ARMH , “and they have a bunch of clever people.”
“This is a marathon, not a sprint,” says Otellini. “Intel has enough momentum in our core business and enough assets that we’re going to do this right. And we’re going to win in the long run.” If he’s wrong, and Intel can’t find its way into smartphones soon, Otellini may find himself back in the spotlight — for all the wrong reasons.
This article is from the February 27, 2012 issue of Fortune.