3D Vapor Chamber Heatsink TVC0011 for Optical Communication Modules

Application Scenarios and Technical Challenges

Target Application Areas

• High-speed coherent optical modules: Suitable for 400G/800G and higher-rate coherent optical transceiver modules

• Telecommunications transmission equipment: Internal modules of high-performance optical transmission equipment such as metro WDM and long-haul backbone systems

• Data center interconnect: Thermal management for high-speed optical interconnect modules between data centers

• 5G fronthaul/midhaul: Meets thermal requirements for high-density, compact optical modules

Industry Technical Challenges

Modern coherent optical modules are characterized by high integration and significant power consumption, facing three core thermal dissipation challenges:

1. Extremely limited space: Internal space of standard optical module sizes (e.g., QSFP-DD, OSFP) is restricted, making traditional cooling solutions difficult to deploy

2. Extremely high heat flux density: Core components such as DSP chips and lasers have heat flux densities exceeding 100W/cm²

3. Stringent reliability requirements: Equipment must operate continuously 7×24 hours in harsh environments, imposing extremely high requirements for long-term reliability of thermal solutions

Limitations of Traditional Solutions

• Planar heat sinks cannot fully utilize module side space

• Traditional heat pipe layouts are limited by installation orientation

• Metal surface oxidation affects long-term thermal contact performance

• Cannot meet the cooling demands of next-generation coherent optical modules

Technological Innovation and Solutions

Core Technological Breakthrough

Our solution employs a composite thermal architecture combining three-dimensional vapor chamber technology with precision-bent heat pipes:

1. Bent Heat Pipe Lateral Heat Conduction Technology

• Breaks through space limitations: Achieves efficient lateral conduction of heat from module center to peripheral edges through precision-bent heat pipe design

• Maximizes cooling surface area: Fully utilizes the entire available surface area of optical module housings

• Directional thermal management: Optimizes targeted cooling for different heat sources such as DSP chips and lasers

2. Three-Dimensional Vapor Chamber Technology

• Rapid thermal diffusion: Achieves efficient heat conduction in the thickness direction, quickly reducing hotspot temperatures

• Temperature homogenization: Ensures all components within the module operate within optimal temperature ranges

• Structural integration: Seamlessly integrates with bent heat pipes to form a complete cooling system

3. Nickel-Plated Surface Treatment Process

• Excellent corrosion resistance: Suitable for various environmental conditions, extending product service life

• Optimized thermal contact: Improves interfacial thermal resistance, enhancing overall cooling efficiency

• Good soldering compatibility: Facilitates modular assembly and maintenance

4. System-Level Cooling Optimization

• Computational Fluid Dynamics (CFD) simulation: Optimizes airflow paths and cooling structure through CFD analysis

• Thermal resistance network modeling: Precisely predicts temperature distribution at various nodes within the module

• Reliability verification testing: Comprehensive testing including thermal cycling, vibration testing, and long-term aging tests

Customer Value and Industry Applications

Core Value for Optical Module Manufacturers

1. Product Performance Enhancement

• Increased transmission rates: Stable thermal environment ensures DSP chips operate at optimal state

• Extended component lifespan: Lower operating temperatures can extend laser and electronic component lifespan by over 30%

• Enhanced system stability: Reduces bit errors and system restarts caused by overheating

2. Enhanced Design Flexibility

• Supports higher integration: Enables more functionality and higher performance within the same form factor

• Simplifies thermal design: Provides complete cooling solution, reducing customer development cycles

• Adapts to different standards: Can be optimized for various standards including QSFP-DD, OSFP

3. Business Competitiveness Improvement

• Accelerated time-to-market: Mature cooling platform shortens development time by 3-6 months

• Reduced system costs: Efficient cooling reduces dependence on cooling systems

• Enhanced product differentiation: Advanced cooling technology becomes a key product differentiator

FAQs