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Seed Crystal for Silicon Growth
-Silicon Seed Crystal
A silicon seed crystal is a high-purity, single-crystal silicon rod used as the foundation for growing larger monocrystalline silicon ingots through the Czochralski (CZ) process . This process involves dipping a precisely oriented seed crystal into molten silicon and slowly pulling it upward while rotating, resulting in a cylindrical ingot with uniform crystallinity Silicon seed crystals are critical in semiconductor manufacturing, where they enable the production of wafers for microchips, power devices, and solar cells.
  • Ultra-high purity (up to 11N, 99.999999999%) to ensure electronic performance .
  • Doping capabilities (e.g., boron for p-type or phosphorus for n-type) to tailor conductivity .
  • Precision diameters (e.g., 200mm/300mm) to meet industry standards for wafer fabrication.

Technical Parameters

No.CharacteristicUnitSpec
1Purity%＞6N/9N
2Material/Mono
3Diameter scalemm0~300 / Customizable
4Type/Contains/P type/ N type
5ResistivityΩ•cm3<0.02 / 1~4 / 60~90
6Crystal Orientation/(100)、(111)、(110)
7Product Lengthmm1~300
8Surface treatment/Polishing
CZ silicon seed crystal (Czochralski process)

Technical Advantages

  1. Ultra-High Purity & Structural Integrity：Ensures uniform lattice alignment for defect-free monocrystalline silicon growth, critical for high-performance semiconductors and solar cells.

  2. Precision Crystallographic Orientation Control：Customizable orientations (e.g., <100>, <111>) to optimize electrical properties and device efficiency in targeted applications.

  3. Enhanced Yield in Czochralski (CZ) Process：Minimizes thermal stress and dislocation defects, enabling faster production of high-quality silicon ingots with reduced material waste.

  4. Long-Term Thermal Stability：Maintains structural integrity under extreme temperatures, supporting reliable crystal growth for industrial-scale manufacturing.

  5. Versatility Across Industries：Compatible with semiconductor fabrication, photovoltaic systems, and advanced electronics, ensuring broad applicability.

  6. Advanced Surface Polishing Technology：Ultra-smooth seed surfaces reduce nucleation errors, accelerating consistent crystal replication.

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