Industry-Verified Manufacturing Data (2026)

Substrate Holder

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Substrate Holder used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Substrate Holder is characterized by the integration of Clamping Mechanism and Rotation Interface. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision fixture that securely holds optical lens substrates during the coating process in a vacuum chamber.

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Product Specifications

Technical details and manufacturing context for Substrate Holder

Definition
The substrate holder is a critical component within the Precision Optical Lens Coating Chamber designed to securely position and maintain optical lens substrates during thin-film deposition processes. It ensures precise alignment, stable mounting, and uniform thermal management of substrates to achieve consistent coating thickness and quality across the lens surface. The holder typically interfaces with the chamber's rotation mechanism and heating systems to optimize coating uniformity.
Working Principle
The substrate holder operates by mechanically clamping or securing optical lens substrates using precision fixtures. During coating operations, it may rotate to ensure even deposition of coating materials, maintain thermal stability through integrated heating/cooling elements, and provide electrical grounding if required. Its design minimizes vibration and maintains positional accuracy under vacuum conditions.
Common Materials
Stainless Steel, Aluminum Alloy, Ceramic
Technical Parameters
  • Maximum substrate diameter the holder can accommodate (mm) Standard Spec
Components / BOM
  • Clamping Mechanism
    Secures the optical lens substrate in place without causing damage or distortion
    Material: Stainless Steel
  • Rotation Interface
    Connects to the chamber's drive system to enable substrate rotation during coating
    Material: Aluminum Alloy
  • Thermal Plate
    Provides controlled heating or cooling to maintain substrate temperature during deposition
    Material: Copper or Aluminum
  • Mounting Base
    Structural foundation that attaches the holder to the chamber's internal framework
    Material: Stainless Steel
Engineering Reasoning
10⁻⁶ to 10⁻² mbar vacuum pressure, 20-150°C temperature, 0.1-5.0 N·m clamping torque
Vacuum leak at >10⁻³ mbar, thermal expansion mismatch >15 µm at 200°C, clamping force <0.05 N·m or >7.0 N·m
Design Rationale: Outgassing-induced pressure rise exceeding Knudsen flow regime (λ/d < 0.01), differential thermal expansion (Δα = 23×10⁻⁶ K⁻¹ between Invar and fused silica), stress concentration at clamping interfaces exceeding yield strength (σ > 250 MPa)
Risk Mitigation (FMEA)
Trigger Residual hydrocarbon contamination (CₓHᵧ) on substrate surface
Mode: Film adhesion failure (delamination >ISO Class 3)
Strategy: Plasma cleaning with 13.56 MHz RF discharge at 100 W for 300 s in 0.5 mbar Ar/O₂ mixture
Trigger Thermal gradient of >50°C/mm across holder during bake-out
Mode: Substrate fracture along crystallographic planes (111) in Si
Strategy: Gradient-limited heating ramp of 2°C/min with PID control (Kₚ=1.2, Kᵢ=0.05, K_d=0.1)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Substrate Holder.

optical lens substrate holder vacuum chamber precision substrate fixture for coating process stainless steel substrate holder optical manufacturing ceramic thermal plate substrate holder rotation interface substrate holder for optical coating

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: High vacuum to 10^-6 Torr
other spec: Max substrate weight: 5 kg, Vibration tolerance: < 0.1 μm RMS
temperature: -50°C to 300°C
Media Compatibility
✓ Optical glass substrates ✓ Silicon wafers ✓ Ceramic lens blanks
Unsuitable: Corrosive chemical vapor deposition (CVD) environments with halogens
Sizing Data Required
  • Substrate diameter and thickness
  • Vacuum chamber dimensions and port size
  • Required coating uniformity specification

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation and leakage
Cause: Chemical attack from process fluids, thermal cycling causing elastomer hardening/cracking, or improper installation leading to seal extrusion
Bearing failure and alignment issues
Cause: Contamination ingress (particles, moisture), inadequate lubrication, misalignment during installation, or excessive vibration from unbalanced loads
Maintenance Indicators
  • Visible fluid leakage around seals or joints indicating seal failure
  • Abnormal vibration or audible grinding/rumbling noises during operation suggesting bearing wear or misalignment
Engineering Tips
  • Implement regular seal inspection and replacement schedule based on chemical compatibility charts and thermal history, using proper installation techniques
  • Establish precision alignment procedures during installation/maintenance, maintain clean lubrication systems, and install vibration monitoring for early bearing wear detection

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASTM E112 - Standard Test Methods for Determining Average Grain Size CE Marking - EU Machinery Directive 2006/42/EC
Manufacturing Precision
  • Flatness: ≤0.05mm per 100mm
  • Parallelism: ±0.02mm between mounting surfaces
Quality Inspection
  • Coordinate Measuring Machine (CMM) Verification
  • Surface Roughness Testing (Ra ≤ 0.8μm)

Factories Producing Substrate Holder

Verified manufacturers with capability to produce this product in China

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✓ 92% Supplier Capability Match Found

T Technical Director from United States Feb 19, 2026
★★★★★
"The technical documentation for this Substrate Holder is very thorough, especially regarding technical reliability."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Feb 16, 2026
★★★★☆
"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Substrate Holder so far. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Australia Feb 13, 2026
★★★★★
"Testing the Substrate Holder now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

18 sourcing managers are analyzing this specification now. Last inquiry for Substrate Holder from Poland (57m ago).

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Frequently Asked Questions

What materials are used in this substrate holder and why?

This substrate holder uses stainless steel for durability and corrosion resistance, aluminum alloy for lightweight structural components, and ceramic for the thermal plate to withstand high temperatures and provide excellent thermal stability during the coating process.

How does the clamping mechanism secure optical lens substrates?

The precision clamping mechanism applies uniform pressure without damaging delicate substrates, ensuring secure positioning during the entire vacuum coating process while maintaining optical alignment and preventing movement or vibration.

What are the key applications for this substrate holder in optical manufacturing?

This substrate holder is specifically designed for optical lens coating applications including anti-reflective coatings, mirror coatings, filter coatings, and other thin-film deposition processes in vacuum chambers used in computer, electronic, and optical product manufacturing.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

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