Semiconductor wafer is a thin slice of semiconductor material used as the substrate for fabricating integrated circuits and discrete semiconductor devices like thyristors and triacs.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Diameter | 100mm, 150mm, 200mm, 300mm | |
| Thickness | 525μm ± 25μm (for 150mm) | |
| Orientation | <100> or <111> | |
| Resistivity | 1-100 Ω·cm | |
| Carbon Content | <0.2 ppma | |
| Oxygen Content | <18 ppma | |
| Surface Flatness | <3 μm TTV | |
| Dislocation Density | <1000/cm² |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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Thyristor wafers typically have thicker epitaxial layers, higher voltage ratings, and different doping profiles compared to standard IC wafers. They're optimized for power handling rather than transistor density.
No, wafer diameter is tied to specific manufacturing equipment. Changing diameters requires complete retooling of fabrication lines and is not interchangeable.
Common causes include thermal stress from rapid temperature changes, mechanical stress from handling equipment, crystal defects, and improper mounting during processing.
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