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PROCESSCONTROL


system integrator. These organizations generally have very good process engineers who are experts in bringing a new facility into production. But what happens when they have finished and departed?


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will change, as it did in the semiconductor industry, as solar manufacturers realize the benefits in cost savings and increased profitability. Since solar manufacturing does not require the same levels of cleanliness, fab space is less expensive, changing dramatically the economics of many decisions. For instance, is profitability increased more by investing in improving the yield of an existing line, or by adding capacity?


Solar manufacturing lines are often set up by a


We see a wide range of attitudes toward APC: from the old school manufacturer who “has a process that works well enough” to the semiconductor transplant who is reluctant to breathe without compelling data. Although solar manufacturing is certainly as old as semiconductor, its recent expansion has created an industry that is less mature and full of opportunities for spectacular success and catastrophic failure. It is arguably more rewarding to pick the low hanging fruit now while it is cheap and available.


However, we would argue that, even at this point in the industry’s development, investments in advanced process analysis and control are warranted. Companies that adopt this approach now will not only identify and benefit more quickly from the “low hanging” opportunities; they will be familiar with advanced process analysis and control and ahead of the field as the fruit gets more difficult to reach.


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