Qualification Wafers are wafers processed specifically to demonstrate that a process, tool, or product meets its specifications — run as part of formal qualification procedures (PQ, IQ, OQ) to provide documented evidence that the manufacturing process is capable and controlled.

Qualification Contexts

• Tool Qualification: After installation or maintenance — demonstrate the tool meets performance specifications.
• Process Qualification: Before production release — demonstrate the process produces acceptable product.
• Product Qualification: Before shipping to customers — demonstrate the product meets reliability and performance specs.
• Requalification: After any significant change (recipe, material, equipment) — re-demonstrate capability.

Why It Matters

• Regulatory: Automotive (AEC-Q100), medical, and aerospace applications require formal qualification documentation.
• Customer Confidence: Qualification data demonstrates manufacturing capability — required for customer sign-off.
• Cost: Qualification wafers consume fab capacity and materials — qualification efficiency is important.

Qualification Wafers are the proof of capability — documented evidence that the manufacturing process meets all specifications for production release.