专业词入口Topic Entry

热阻测试与红外热成像,先让发热工况、热边界和温度标定对齐。Thermal testing starts by aligning power conditions, thermal boundaries and temperature calibration.

热阻和红外热成像用于判断器件温升、热点位置与散热路径是否符合项目目标。结果会受到通电方式、封装与夹具、环境对流、表面发射率、透过窗口和空间分辨率影响;热图不能脱离标定与工况单独作为结论。Thermal resistance and infrared imaging evaluate temperature rise, hotspots and heat paths. Electrical drive, mounting, convection, emissivity, optical windows and resolution all affect interpretation.

01

适合什么需求Good For

芯片、封装、微加热器、功率器件和传感器的稳态或脉冲温升比较;定位异常热点;比较散热材料、界面、贴装或散热器方案,并定义热阻或允许温升的验收证据。Steady or pulsed temperature-rise comparisons, hotspot localization, thermal-interface and heatsink comparisons, and thermal-resistance acceptance evidence.

02

需要准备什么Prepare First

器件结构与材料栈、芯片和封装尺寸、供电/脉冲波形、实际功耗、环境与散热边界、测温区域、可达视窗、表面涂层或发射率信息、目标温度范围、像素/时间分辨率及对照样品。Device stack and size, drive waveform and power, environmental and cooling boundaries, target regions, optical access, coating or emissivity, temperature range, resolution and controls.

03

常见风险Common Risks

将电输入直接当作芯片发热、忽略接触热阻与夹具散热、不同表面发射率未校正、镜头分辨率不足以分辨热点、脉冲热过程被帧率平均,以及用单张热图替代重复性和不确定度说明。Confusing electrical input with dissipated heat, ignoring fixture resistance, uncorrected emissivity, insufficient resolution, frame-rate averaging and treating one image as repeatable evidence.

推荐下一步Next Step

把“看热点”转换成供电工况、热边界、标定方案和可复核交付。Turn “find the hotspot” into drive conditions, thermal boundaries, calibration and reviewable deliverables.

请提交结构示意、供电条件、可接受温升或热阻目标、散热安装方式、待观察区域与样品数量。素微 会先判断红外热像、接触式温度测量或电学热敏参数哪一种更适合作为主证据,并明确互相校核的边界。Share the structure, drive, target temperature rise or resistance, mounting, regions and sample count so a suitable primary and cross-check method can be planned.

提交热阻或热成像测试需求Submit thermal testing request查看探针台 I-V 测试准备Open probe-station I-V topic查看表征与测试导航Open metrology route