Thank you, and welcome, everyone. PDF Solutions made strong progress in 2011 towards our goal of being pervasively applied to leading edge logic manufacturing and generating gainshare from our client's successful yields. In the fourth quarter of 2011, we achieved revenue of $17.6 million, non-GAAP profit of $0.12 per share and a GAAP profit of $0.07 per share.
For the full year, we achieved revenue of $66.7 million, and a non-GAAP net profit of $0.26 per share and a GAAP profit of $0.07 per share. I am pleased to say that this was our second consecutive year of GAAP profitability. We believe this is clear evidence of our commitment to conserve spending policy that has been closely aligned to our revenue opportunities.
On the new business side, activity in the fourth quarter was very strong, as we anticipate on last quarter's call. And we successfully closed the following business, all with existing clients. In a reserved contract for 14-nanometer process R&D, an extension to an existing contract for 22-nanometer process R&D, an extension to an existing 32-nanometer yield ramp, a contract for a 29-nanometer process R&D, an extension to our fabless company's 28-nanometer DFM contract, a commercial license for a beta copy customer of our next-generation YieldAware process control software, and lastly, a single contract for yield ramps of a client 32, 28, 22 and 20-nanometer processors.
This last contract replaced an extended prior agreements from some of those nodes in facilities and added additional nodes in all facilities at which these processes are run. This resulted in a larger, more comprehensive implementation of PDF's integrated solutions across the client's organization. As a result, we'll be able to drive more value with this client with better ramp, which will benefit their business as well as ours. The beginning of this benefit was already evident in their manufacturing and our gainshare results in Q4 2011. The 20-nanometer R&D engagement I listed is yet another contract and a key collaboration between a number of logic manufacturers of this node. This 20-nanometer collaboration as well as our 22-nanometer and 20-nanometer engagements demonstrates the continued trend of process developers applying PDF Solutions' Characterization Vehicle to optimize the design rules and technology definition. This is another extension of PDF's value across the process life cycle and a form of DFM for technology development. Sequential increases in solutions and gainshare revenues, coupled with continued spending discipline, resulted in our generating $2.2 million in cash from operations in Q4. For the year, we generated approximately $8.2 million from operations.
As I said at the beginning of this call, our primary goal this past year was to make PDF's yield ramps pervasive leading edge logic, execute well for our clients and position ourselves to generate future gainshare from these facilities.
As you may remember, to achieve this goal, we had 5 priorities for the year. First, drive adoption of our technology in logic manufacturing and the fabless customers across the manufacturing process life cycle. During the year, we signed engagements with logic manufacturers at nodes from 45-nanometer to 14. These engagements include, DFM, yield ramps and process control solutions. Between our DFM engagements and our direct work with foundries, PDF Solutions' Characterization Vehicle test chips will run at all major foundries in 2011. As a result, PDF's unique resource as our characterization of leading edge silicon across the entire industry is unparalleled. In particular, the value of our solution to fabless clients has started to be publicly recognized. In the third and fourth quarter of this past year, AMD referred to PDF Solutions on their earnings call as an important partner in driving their manufacturing efficiencies. In our strategy of helping our foundry clients achieve great operating results, our CD infrastructure and DFM solutions are becoming more recognized capability for both the factories and the fabless design teams using them.
The second priority in 2011 was achieving our yield targets with our clients to maximize gainshare results. We made good progress on this during the year. For example, in Q4, we started to see gainshare contribution from those below 40-nanometer for the first time. Achieving our yield targets means that our clients are experiencing improved manufacturing execution in part by using PDF's characterization and RAM capabilities.
Our third priority for the year was to drive adoption of our DFM solutions at fabless clients. We already mentioned the work with our clients and the value AMD has recognized. During the year, we signed a number of DFM engagements and laid the groundwork for further expansion in 2012. In particular, as fabless companies begin manufacturing a 28-nanometer, our process control solutions, which leverage our proprietary Characterization Vehicles implemented in products' guidelines are beginning to demonstrate value. As 28-nanometer volume picks up in 2012, we anticipate this capability becoming an important part of PDF Solutions' valued proposition to fabless, augmenting the DFM solutions that clients engage prior to tape out.
Our fourth priority for the year was to continue deliver our solutions to markets adjacent to our logic manufacturers, such as LED, solar, wafer and memory manufacturing. As I mentioned in the third quarter call, during 2011 we successfully expanded on the relationship with our first LED manufacturer that we began in 2010. One of the features of the next generation process control software I mentioned earlier, is more cost-effective deployment for our YieldAware process control capability to these adjacent markets. We expect to see continued traction in logic and adjacent markets for this technology in 2012.
Finally, our fifth priority for the year was to remain committed to prudent spending. During 2011, we grew our designer silicon revenue by 20% while our cost of sales increased only approximately 10%. We are pleased with this margin expansion. Our strategic direction in 2012 will remain largely unchanged from 2011. While we will increase our focus on achieving our yield targets as it sets the stage for client satisfaction and future gainshare.
In 2012, we anticipate the overall chip industry will continue to grow with logic manufacturers seeing more growth than the industry overall. In 2011, our business, in particular our solutions revenue, which is an indicator of future gainshare, grew faster than the overall logic industry. Adoption of the leading edge nodes where a few yet -- is particularly well positioned will continue to be the most exciting part of logic manufacturing business. In these nodes, yield ramps, DFM and process control will be critical issues for IT manufacturers and fabless companies. As a result, while we will continue to refrain from providing specific quarterly guidance and we may see ups and downs quarter-over-quarter, we expect to continue to grow our solutions revenue in 2012 at our level that is fast [ph] in the overall logic manufacturing industry. Further, we believe Q4 foreshadowed a return to more consistent growth in gainshare results as the investments we have been making on the leading edge nodes with our clients start bearing fruit.
Finally, due to our continued focus on conservative spending, we anticipate that our earnings growth will be greater than our revenue growth on a percentage basis.
Thank you for your time and attention. Now I'll turn the call over to Greg, who joined PDF just about 3 months ago as our new CFO. We are pleased to have him as part of our team. Greg will discuss in detail our financial results for the fourth quarter and fiscal 2011. Greg?