Happy Pi Day! The semiconductor industry uses pi almost everywhere. For example, creating yield at the edge of a wafer can be difficult due to factors such as increased defectivity, thickness variation, and tool non-uniformity. We can use pi to calculate what percentage of the wafer’s area is close to the edge and how many die may be impacted by edge-specific variation. This lets us deploy targeted capabilities like cleaning solutions for backside edge, CMP solutions to control edge roll-off, and special components such as processing tools to control uniformity at the wafer’s edge. Even though chip manufacturing is complex, we still rely on pi! #piday #STEM #STEAM

Seong Jae Hong

Entegris Asia Ltd.383 followers

3w

Happy Pi Day! 🥧 Fascinating to see π driving wafer edge yield—true technical precision! 📉➡️📈 As an engineer, I highly value Entegris’s STEM innovation 🔬 Hope this same 'targeted solution' logic continues to drive Process Integrity and Operational Excellence globally! 🛠️💎✨ #Entegris #PiDay #YieldExcellence #STEM #Innovation

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