qualification wafers

**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.