As this year comes to a close, AMD executives won't be sorry to put 2007 behind them. Battered by rising debt, shrinking market share and mounting financial losses, AMD is counting on a comeback in 2008. But can the struggling chip maker make good on its promises to customers and investors that better times lie ahead?

Many of AMD's current troubles are tied to Barcelona, the first version of its Quad-Core Opteron processor. Repeated delays of this chip weakened AMD's finances and undermined confidence in the company's ability to deliver new products as promised. Rebuilding that lost confidence among corporate users and the financial community won't be easy and the company can ill afford further missteps.

Over the next six months, there are several milestones that AMD must hit in order to get back on track. The first, and arguably most important, involves volume shipments of Barcelona, scheduled to happen during the first quarter. AMD desperately needs this chip to shore up flagging revenue from its commercial business and to take back ground lost recently to Intel in the server market.

With a bug that was recently discovered in Barcelona fixed, AMD expects the latest version of the chip to start coming out of its manufacturing plants in January. Barcelona shipments are expected to rise throughout the first quarter, reaching "full volumes" and widespread availability of servers based on the chip during the second quarter, according to Phil Hughes, an AMD spokesman.

Another early milestone to look out for involves Shanghai, the second version of the Quad-Core Opteron chip that's set for volume production during the second half of 2008. AMD will produce Shanghai with a 45-nanometer manufacturing process that is one generation ahead of the 65-nanometer process used to make Barcelona.

The numbers used to describe chip manufacturing processes refer to the average size of the smallest features that can be created on a chip. The smaller these features can be made, the better. Making these features smaller gives chip makers the ability to shrink the overall size of a chip, thereby reducing unit manufacturing costs, or to add new features. Chips made using a more advanced process may also consume less power and run faster than other versions. But semiconductor production is as much art as it is science, and moving to a more advanced process is fraught with risks.

The IDG News Service is a Network World affiliate.