电子材料检测评价


微谱电子材料领域技术服务

服务简述:电子材料是指在电子技术和微电子技术中使用的材料,起的辅助焊接或者器件功能的实现等作用。在板级工艺中常见的电子材料(辅料)包括助焊剂、焊锡膏、焊锡丝、清洗剂、导热材料等。随着PCB、PCBA、整机产品等结构的复杂性和多样性发展,电子材料的应用场景也越来越复杂,会导致日益增加的失效问题发生,所以需要加强电子材料的质量和特性检测。
服务内容

6.1助焊剂Flux
测试项目Test items |
外观Visual |
比重(密度)density |
粘度viscosity |
物理稳定性Physical stability |
不挥发物含量solid content |
闪点flash point |
水萃取液电阻率 specific resistivity (electric resistivity) of aqueous solution |
酸值Acid Value |
铜镜腐蚀性Copper mirror corrosion |
卤化物含量 Halogen Content Test |
铜板腐蚀 Corrosion Test |
表面绝缘电阻 Insulation Resistance Surface Insulation Resistance |
绝缘电阻 Insulation Resistance |
残留物干燥度 Dryness test (evaluation of tackiness of flux residue) |
扩展率(助焊性) Spread test |
电迁移 Electrochemical Migration Resistance Test |
液体焊剂或性(润湿天平法) Wetting Balance Test |
6.2焊锡膏Solder Paste
测试项目Test items |
合金化学成分 Alloy composition |
水萃取液电阻率 specific resistivity (electric resistivity) of aqueous solution |
酸值Acid Value |
铜镜腐蚀性Copper mirror corrosion |
卤化物含量 Halogen Content Test |
铜板腐蚀 Corrosion Test |
表面绝缘电阻 Insulation Resistance Surface Insulation Resistance |
绝缘电阻 Insulation Resistance |
残留物干燥度Dryness test (evaluation of tackiness of flux residue) |
扩展率(助焊性) Spread test |
电迁移Electrochemical Migration Resistance Test |
液体焊剂或性(润湿天平法) Wetting Balance Test |
金属含量 Metal content |
粘度viscosity |
坍塌试验 Collapse test |
合金粉粒度大小与分布 Particle size and distribution of alloy powder |
润湿性试验 Wettability test |
6.3焊锡丝Solder Wire
测试项目Test items |
水萃取液电阻率specific resistivity (electric resistivity) of aqueous solution |
酸值Acid Value |
铜镜腐蚀性Copper mirror corrosion |
卤化物含量 Halogen Content Test |
铜板腐蚀 Corrosion Test |
表面绝缘电阻 Insulation Resistance Surface Insulation Resistance |
绝缘电阻 Insulation Resistance |
残留物干燥度Dryness test (evaluation of tackiness of flux residue) |
扩展率(助焊性) Spread test |
电迁移Electrochemical Migration Resistance Test |
液体焊剂或性(润湿天平法) Wetting Balance Test |
焊剂含量Flux content |
6.4清洗剂Cleaning Agent
测试项目Test items |
比重(密度)density |
残留量(wt%) Residual amount |
电导率conductivity |
铜板腐蚀 Corrosion Test |
表面绝缘电阻 Insulation Resistance Surface Insulation Resistance |
电迁移 Electrochemical Migration Resistance Test |
6.5三防漆Conformal Coating
测试项目Test items |
外观Visual |
酸值Acid Value |
水基或乳胶漆的PH值 The pH value of water-based or latex paint |
漆和铜的反应 The reaction between paint and copper |
耐液体(包括水)性Resistance to liquids (including water) |
粘度viscosity |
不挥发物含量solid content |
体积电阻率Volume resistivity |
电气强度Electrical strength |
表面电阻率Surface resistivity |
附着力测试 Coating adhesion Test |
硬度 hardness |
吸水率 Water absorption rate |
易燃性 Flammability |
温度与湿度老化(水解稳定性)Temperature and humidity aging (hydrolysis stability) |
潮湿环境下的绝缘电阻 Insulation Resistance |
热冲击 thermal shock |
介质耐电压 Dielectric withstand voltage |
表面绝缘电阻 Insulation Resistance Surface Insulation Resistance |
电迁移 Electrochemical Migration Resistance Test |
