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Which material is commonly used as substrate for silicon semiconductor manufacturing?
- Sapphire
- Silicon Wafer
- Glass
- Plastic
Answer: Silicon Wafer
Silicon wafers (single-crystal, polished discs) are foundational substrate for IC fabrication due to: abundance, mature processing, and suitable electronic properties. Compound semiconductors (GaAs, SiC) used for specialized applications. Critical for understanding chip manufacturing basics.