Direct Bonded Copper (DBC) substrate is a ceramic-based circuit board with copper layers bonded directly to both sides, used for high-power semiconductor packaging and thermal management.
Direct Bonded Copper (DBC) substrate is a specialized electronic substrate where copper foil is directly bonded to a ceramic insulator (typically aluminum oxide Al2O3 or aluminum nitride AlN) through a high-temperature oxidation process. This creates a metallized ceramic substrate with excellent thermal conductivity, electrical insulation, and mechanical stability. DBC substrates serve as the foundation for power semiconductor modules, providing electrical interconnections, thermal dissipation paths, and structural support for semiconductor dies, wire bonds, and other components in high-power applications.
诱因 → 失效模式 → 工程缓解
不是客户评论，也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。
这些分值是采购评估维度示例，不代表真实客户评分、具体国家买家反馈或实时询盘。
DBC substrates offer superior thermal conductivity (especially with AlN), better electrical insulation at high voltages, higher temperature tolerance (>300°C), lower thermal expansion mismatch with semiconductor dies, and better reliability in high-power cycling conditions.
Al2O3 (alumina) DBC offers good electrical insulation and moderate thermal conductivity (24-28 W/mK) at lower cost. AlN (aluminum nitride) DBC provides excellent thermal conductivity (170-200 W/mK) for high-power density applications but at higher cost and with more challenging manufacturing processes.
DBC substrates are used in IGBT modules, MOSFET modules, SiC and GaN power modules, automotive power electronics, industrial motor drives, renewable energy inverters, traction systems, and high-frequency power supplies.
CNFX 是开放目录，不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。
CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。
说明目标数量、应用场景、交期和关键技术要求，用于准备 RFQ 或供应商评估。