In the IGBT module burnout accidents of new energy vehicles globally in 2023, 62% of the failure cases were directly related to the thermal runaway of the substrate. This has compelled the industry to re-examine its heat dissipation solutions – copper substrates are transforming from "optional accessories" into "strategic necessities".
According to data from Frost & Sullivan, the global market size of metal-based PCBs reached $5.8 billion in 2023, among which the proportion of copper substrates exceeded 35% for the first time. It is expected that a new blue ocean market with a scale of $12 billion will be formed by 2030.
This article reveals the development code of the copper-based PCB industry in the coming decade from three perspectives: technological evolution, market demand, and supply chain transformation.
①Traditional epoxy (0.3 W/m·K) vs. boron nitride nanosheet composites (8.5 W/m·K)
②Lab results: 3mm copper substrates with new dielectrics achieve 0.18°C/W thermal resistance (42% reduction)
③Commercialization: Rogers’ Curamik series in mass production; cost projected to hit $0.8/cm² by 2025
①Selective laser melting (SLM) enables 50μm-resolution 3D structures
②Case study: Siemens’ 3D-printed PA modules shrink size by 60%, achieving 300W/cm³ power density.
③246Equipment cost: Metal 3D printers drop from 250k(2023) to250k(2023) to120k by 2026 (Wohlers Report)
①Thickness evolution: 0.8mm (2020) → 0.3mm (2023) → 0.1mm (2025 target)
②Mechanical breakthroughs: Tensile strength ≥450MPa (+80%), bend radius <1mm
③Market impact: Fukuda Metal’s ultra-thin foil gross margin hits 52% (2.3x traditional products)
Technology roadmap:
System | 2018 | 2023 | 2030 (Projected) |
Powertrain | Aluminum 0.2㎡ | Copper 0.5㎡ | Copper 0.8㎡ |
OBC | FR-4 | Single-side | Double-side |
BMS | None | Partial copper | Full copper |
Cost savings: $120/vehicle reduction in thermal management (Tesla Investor Day data)
Technical requirements:
①Base station AAU heat flux: 350W/cm² (2025) → 500W/cm² (2030)
②Phase noise tolerance: <0.5dBc/Hz @28GHz
Solutions:
①Copper-diamond composites (≥600W/m·K)
②Integrated microchannel active cooling
Performance comparison:
Parameter | Traditional Cooling | Direct Copper Solution |
Heatsink weight | 1.2kg | 0.4kg |
Junction ΔT | 15°C | 3°C |
Cost per watt | $0.08 | $0.03 |
Market forecast: AI server copper substrate adoption to surge from 12% (2023) to 68% by 2030 (IDC)
Global refined copper deficit: 380k tons (2023) → 2.1M tons by 2030 (ICSG)
Industry responses:
①Recycling breakthroughs: 99.99% purity at 40% lower cost
②Alternative materials: Copper-clad aluminum (35% lighter, 28% cheaper)
Equipment Type | 2020 Import Rate | 2023 Import Rate | 2025 Target |
Vacuum brazing furnaces | 92% | 65% | 30% |
Laser drillers | 100% | 80% | 50% |
Surface treatment lines | 85% | 45% | 20% |
(Data: China Electronic Special Equipment Industry Association)
2023 regional share:
①Asia: 78% (China 43%, Japan 22%, Korea 13%)
②Europe: 15%
③North America: 7%
2030 projection:
China to dominate 58%, Southeast Asia to contribute 12%
Material cost optimization:
Cost Component | 2023 Share | 2030 Target |
Raw copper | 52% | 38% |
Dielectrics | 28% | 22% |
Energy | 15% | 8% |
Achieved through process innovation and scale effects
Current standard gaps:
①IPC-6012D lacks high-frequency specs for copper substrates
②MIL-PRF-31032 omits dynamic thermal cycling methods
China-led standards:
①GB/T 38900-202X High-Thermal-Conductivity Metal Clad Laminates
②SJ/T 11789-202X Copper PCB Thermo-Mechanical Reliability Testing
1. Performance Limits Broken: 1,000W/m·K thermal conductivity by 2028
2. Manufacturing Paradigm Shift: 3D printing to cover 30%+ production
3. Value Chain Redistribution: Material suppliers’ margins to jump from 15% to 40%
(Data verified via IEEE CPMT papers, Prismark reports, and industry leader financial disclosures)