Six Sigma – Successfully Implementing Process Improvements in Semiconductor Production
Six Sigma is an established method of process improvement that is also widely used in the semiconductor industry.
Mathematically, Six Sigma (6σ) is a statistical term that measures the spread of process results around an average.
Practically, Six Sigma is synonymous with zero-defect quality. For example, in a semiconductor manufacturing process with one million chips, only 3 chips are faulty, this corresponds to a quality level of 99.99996 percent (Six Sigma Level).
Its core element of Six Sigma is the description, measurement, analysis, improvement and monitoring of production systems by statistical means.
In addition the DMAIC methodology is often used (DMAIC = Define – Measure – Analyze – Improve – Control)