The scenario
A titanium sputtering target manufacturer experiences elevated oxygen levels in fabricated targets, impacting purity and performance. The fishbone maps potential contamination sources across six key process categories.
What is in this drawing
Read the decisions behind it.
01
Use structured 6M categories with top and bottom ribs to balance the diagram
02
Include second-level sub-causes for high-risk contamination paths
03
Pin categories to fixed sides and order for stable layout
Reuse for any purity-critical metal powder or vacuum process defect analysis; adapt categories and causes to the specific contamination source.
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