Editorial Technical Reference

Precision LED Chip Carrier

This page explains how Precision LED Chip Carrier is classified within Manufacture of Lighting Equipment. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Mechanical substrate for mounting and thermally managing individual LED semiconductor dies

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Product Specifications

Technical details and manufacturing context for Precision LED Chip Carrier

Definition
The Precision LED Chip Carrier is a precision-engineered component designed to securely mount individual LED semiconductor dies within a lighting assembly. It provides critical electrical connectivity between the die and the circuit while efficiently dissipating heat to maintain optimal operating temperatures. The carrier ensures precise optical alignment and protects the fragile semiconductor from mechanical stress. It serves as the fundamental building block in LED package assembly for various lighting applications.

This carrier is manufactured from materials such as Aluminum Nitride (AlN) ceramic or Copper-Molybdenum-Copper (CMC) composite, selected for their thermal and mechanical properties. Key parameters include thermal conductivity of 170–230 W/m·K (ASTM E1461), coefficient of thermal expansion of 6–8 ppm/K (ASTM E831), maximum operating temperature of 150–200 °C, surface flatness ≤0.05 µm (ISO 1101), trace resistance of 0.5–2.0 mΩ (IPC-2221), die shear strength ≥5 MPa (MIL-STD-883), breakdown voltage ≥1000 V DC (IEC 60112), and insulation resistance ≥10^10 Ω (IEC 60167). Humidity resistance is verified per IEC 60068-2-78 (85°C/85%RH, 1000h). Available dimensions range from 3.5×3.5 mm to 5.0×5.0 mm, with thickness from 0.5 to 1.0 mm, and weight from 0.1 to 0.5 g. Custom sizes are available on request.

These values are directory reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier. The carrier is intended for use in LED packaging, where it provides a stable platform for die attachment, wire bonding, and thermal management. It is not a finished lighting product but a component for integration into LED modules or luminaires. Verification of compliance with the listed standards should be performed by the buyer or integrator.
Working Principle
The carrier physically supports the LED die, with conductive traces providing electrical paths for power input. Its material and design facilitate heat transfer from the die to a larger heat sink or the surrounding structure, preventing thermal degradation of the semiconductor. The carrier's surface flatness ensures uniform bonding, and its coefficient of thermal expansion is matched to the LED die to minimize stress during temperature cycling. Electrical insulation between traces prevents leakage currents, while the breakdown voltage ensures safe operation at high voltages. The die shear strength indicates the robustness of the attachment, and humidity resistance ensures reliability in moist environments.
Common Materials
Aluminum Nitride (AlN) Ceramic, Copper-Molybdenum-Copper (CMC) Composite
Technical Parameters
ParameterTypical rangeNotes & selection driver
Thermal ConductivityRequired170–230 W/m·KMaterial's ability to conduct heatASTM E1461
Coefficient of Thermal ExpansionRequired6–8 ppm/KDimensional change with temperature, matched to LED dieASTM E831
Maximum Operating TemperatureRequired150–200 °CContinuous safe operating temperature limit
Surface FlatnessRequired≤0.05 µmDeviation from perfect planar surface for die bondingISO 1101
Trace Resistance0.5–2.0 mΩElectrical resistance of conductive pathsIPC-2221
Die Shear Strength≥5 MPaBond strength between carrier and attached dieMIL-STD-883
Substrate MaterialAlN, Al2O3, Si3N4AlN offers highest thermal conductivity.
Dimensions3.5×3.5–5.0×5.0 mmCustom sizes available on request.
Thickness0.5–1.0 mmAffects thermal resistance and mechanical strength.
Breakdown Voltage≥1000 V DCPrevents electrical failure at high voltages.IEC 60112
Insulation Resistance≥10^10 ΩEnsures no leakage current between traces.IEC 60167
Humidity Resistance85°C/85%RH, 1000hNo corrosion or delamination after test.IEC 60068-2-78
Weight0.1–0.5 gLightweight for portable applications.

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

Components / BOM
  • Ceramic Substrate Part
    Provides electrical insulation and thermal conduction
    Material: Aluminum Nitride Ceramic
  • Conductive Trace Part
    Forms electrical connection path for LED anode/cathode
    Material: Copper or Gold
  • Die Attachment Pad Part
    Precision surface for semiconductor die bonding
    Material: Gold-plated or Solder
  • Thermal Interface Layer Optional Part
    Enhances heat transfer to external heat sink
    Material: Thermal Grease or Phase Change Material

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Precision LED Chip Carrier.

LED Die Carrier LED Submount Semiconductor Carrier Plate

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 MPa (for hermetic sealing applications)
temperature: -40°C to +150°C (operating), up to +300°C (peak during soldering)
flatness tolerance: ≤10 μm across mounting surface
thermal resistance: 0.5-5 K/W (junction-to-case, depending on design)
Media Compatibility
✓ High-brightness LED dies (GaN, InGaN) ✓ Thermally conductive adhesives (epoxy, silicone) ✓ Gold/tin solder alloys for die attach
Unsuitable: High-vibration environments without additional mechanical damping
Sizing Data Required
  • LED die dimensions (X,Y) and power dissipation (W)
  • Required thermal resistance target (K/W)
  • Electrical connection pattern (pad layout and pitch)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal degradation of LED chip bonding
Cause: Excessive operating temperature due to inadequate heat dissipation or overdriving current, leading to solder joint fatigue or delamination.
Optical lens/carrier material yellowing or cracking
Cause: UV exposure and thermal cycling causing polymer degradation, reducing light output and compromising structural integrity.
Maintenance Indicators
  • Significant, sudden drop in luminous output or color shift (e.g., from white to blue-ish or yellow-ish tint) indicating chip or phosphor degradation.
  • Audible buzzing or high-pitched whine from the driver circuit, or visible flickering at stable power, suggesting imminent driver or connection failure.
Engineering Tips
  • Tip 1: Implement strict thermal management by ensuring proper heat sink contact, maintaining clean airflow paths, and using thermal interface materials with appropriate conductivity and longevity.
  • Tip 2: Adhere to manufacturer-specified current and voltage limits, avoiding overdriving, and use surge protection devices to shield against electrical transients that accelerate chip and driver aging.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60747-5-3 - Semiconductor devices - Discrete devices and integrated circuits - Part 5-3: Optoelectronic devices - Light emitting diodes DIN 58141-1 - Optical systems - Part 1: Terms and definitions

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Surface flatness: 0.05mm across 10mm span
Quality Inspection
  • Coordinate Measuring Machine (CMM) dimensional verification
  • Thermal cycling test (-40°C to +125°C, 1000 cycles)

Manufacturers of Precision LED Chip Carrier

Manufacturer profiles associated with Precision LED Chip Carrier.

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Frequently Asked Questions

What is the primary function of the Precision LED Chip Carrier?

It provides a mechanical substrate for mounting individual LED semiconductor dies, ensuring electrical connectivity, thermal dissipation, and mechanical protection within an LED assembly.

Which materials are available for this carrier?

The carrier is available in Aluminum Nitride (AlN) ceramic or Copper-Molybdenum-Copper (CMC) composite, each offering specific thermal and mechanical properties.

What are the key thermal parameters to consider?

Thermal conductivity ranges from 170 to 230 W/m·K, and the coefficient of thermal expansion is 6–8 ppm/K, matched to the LED die to minimize stress.

How should I verify the specifications for my application?

The listed values are reference ranges. You must confirm model-specific values and standards with the legal manufacturer or supplier before integration.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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