Written by A solar power company location in Shanghai, China discovered that their manufacturing process was producing unacceptable levels of variability in the thickness of their silicon nitride films.
They needed to control the thickness of the film to improve the solar cells’ surface energy efficiency levels.
Using statistical analysis, they were able to pinpoint and rectify the causes for the differences in film thickness. They improved the energy efficiency of the panels by 7%, from 81% to 88%. This increased production by over $100K annually.
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