Silicon Crystal: Diameter 150mm, 200mm, 300mm, TTV <10 μm

Q: What is the difference between silicon crystal and silicon wafer?

Silicon crystal refers to the bulk monocrystalline ingot grown from molten silicon, while silicon wafers are thin slices cut from this crystal and polished for semiconductor processing.

Q: Why is crystal orientation important in silicon substrates?

Crystal orientation ( , , etc.) determines the electronic properties, etching characteristics, and mechanical strength of the wafer, affecting device performance and manufacturing yield.

Component Specifications

Definition

A monocrystalline silicon structure grown through the Czochralski or Float Zone method, characterized by extremely high purity (typically 99.9999999% or 9N) and specific crystallographic orientation (usually <100> or <111>), serving as the base material for silicon wafer substrates in semiconductor device fabrication.

Working Principle

Silicon crystals function as the structural foundation for integrated circuits by providing a defect-free, single-crystal lattice that enables precise doping and patterning of electronic components through photolithography and etching processes.

Materials

Electronic Grade Silicon (EG-Si) with impurity levels below 0.1 ppb for critical dopants, dislocation density <1000/cm², oxygen content 5-20 ppma, carbon content <0.1 ppma.

Technical Parameters

Parameter	Typical range	Notes & selection driver
TTV	<10 μm
Bow/Warp	<50 μm
Diameter	150mm, 200mm, 300mm
Orientation	<100>, <111>
Resistivity	1-100 Ω·cm
Surface Roughness	<0.5 nm Ra
Dislocation Density	<1000/cm²
Carbon Concentration	<0.1 ppma
Oxygen Concentration	5-20 ppma

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 14644-1, SEMI M1, SEMI M59, ASTM F723, JIS H 0605

Parent Products

This component is used in the following industrial products

High-Purity Silicon Wafer Substrate

Ultra-pure silicon disc serving as foundation for semiconductor device fabrication

View Product Details

Engineering Analysis

Risks & Mitigation

Crystal defects (dislocations, stacking faults)
Impurity contamination during growth
Orientation deviation
Thermal stress cracking
Diameter control variation

FMEA Triads

Trigger: Temperature fluctuations during crystal growth
Failure: Dislocation propagation and polycrystalline formation
Mitigation: Precise temperature control systems with ±0.1°C accuracy and automated pull rate adjustment

Trigger: Crucible contamination or degradation
Failure: Metallic impurity incorporation into crystal lattice
Mitigation: High-purity quartz crucibles with protective coatings and regular replacement schedules

Trigger: Improper seed crystal alignment
Failure: Off-orientation growth affecting device performance
Mitigation: Automated alignment systems with laser measurement and real-time correction

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Diameter: ±0.2mm, Orientation: ±0.5°, Resistivity: ±10%, Oxygen: ±2 ppma

Test Method

Four-point probe resistivity measurement, FTIR for oxygen/carbon analysis, X-ray diffraction for orientation, surface profilometry for geometry

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Silicon Crystal

Manufacturer profiles associated with Silicon Crystal.

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Frequently Asked Questions

What is the difference between silicon crystal and silicon wafer?

Silicon crystal refers to the bulk monocrystalline ingot grown from molten silicon, while silicon wafers are thin slices cut from this crystal and polished for semiconductor processing.

Why is crystal orientation important in silicon substrates?

Crystal orientation (<100>, <111>, etc.) determines the electronic properties, etching characteristics, and mechanical strength of the wafer, affecting device performance and manufacturing yield.

What purity level is required for semiconductor-grade silicon crystals?

Electronic Grade Silicon requires purity of 99.9999999% (9N) or higher, with specific impurity controls for elements like oxygen, carbon, and metallic contaminants.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Silicon Crystal