Defect reduction through Lean methodology
2010
Lean manufacturing is a systematic method of identifying and eliminating waste. Use of Lean manufacturing techniques
at the IBM photomask manufacturing facility has increased efficiency and productivity of the photomask process. Tools,
such as, value stream mapping, 5S and structured problem solving are widely used today. In this paper we describe a
step-by-step Lean technique used to systematically decrease defects resulting in reduced material costs, inspection costs
and cycle time. The method used consists of an 8-step approach commonly referred to as the 8D problem solving
process. This process allowed us to identify both prominent issues as well as more subtle problems requiring in depth
investigation. The methodology used is flexible and can be applied to numerous situations. Advantages to Lean
methodology are also discussed.
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