Test Grade Silicon Wafer
Silicon wafers for process evaluation, parameter testing, and R&D development
Description
🔷 Product Overview
Test grade silicon wafers are used for evaluating process conditions, validating recipes, and conducting experimental runs in semiconductor fabrication and research environments.
Compared to prime grade wafers, test wafers have slightly relaxed specifications but still maintain controlled electrical and structural properties suitable for meaningful experimental results.
🔷 Key Specifications
| Parameter | Specification |
|---|---|
| Material | Monocrystalline Silicon |
| Grade | Test grade |
| Diameter | 2″ – 12″ |
| Thickness | Standard or customized |
| Orientation | ⟨100⟩ / ⟨111⟩ |
| Dopant Type | P-type / N-type |
| Resistivity | Moderate control |
| Surface Finish | SSP / DSP |
🔷 Difference from Other Grades
| Feature | Prime Grade | Test Grade | Dummy Grade |
|---|---|---|---|
| Electrical control | High | Medium | None |
| Surface quality | Best | Good | Basic |
| Application | Device fabrication | Process development | Equipment testing |
🔷 Applications
- Process development and optimization
- Thin film deposition testing
- Etching and cleaning experiments
- Academic and industrial R&D
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