IEC TR 61191-9:20 23是一份技术报告，适用于电子和机电汽车电路板组件，并描述了当前处理电路板表面的迁移或腐蚀和离子污染等电化学反应的最佳实践。湿度负载下的故障模式。本文件涉及用于制造电子组件的材料和制造工艺的评估，重点是它们在湿度负载下的可靠性。设备在潮湿环境中的电气操作会触发电化学反应，从而导致组件上的短路和故障。在这种情况下，提到了大量的术语和方法，如CAF（导电阳极丝）、阳极迁移现象、枝晶生长、阴极迁移、ROSE（溶剂萃取物电阻率）、离子污染、SIR（表面绝缘电阻）、阻抗谱等。它们被不同地使用和解释。该文件的目的是实现语言的统一使用，并列出通用测量方法的可能性和局限性。本文的重点是阴极形成枝晶的组件表面电化学迁移的误差模式。 在高湿度负荷下对控制单元的不同测试方法的评价不是本文件的一部分。

IEC TR 61191-9:2023, which is a Technical Report, applies to electronic and electromechanical automotive circuit board assemblies and describes current best practices for dealing with electrochemical reactions like migration or corrosion and ionic contamination on the surface of a circuit board as one failure mode under humidity load. This document deals with the evaluation of materials and manufacturing processes for the manufacturing of electronic assemblies with focus on their reliability under humidity loads. The electrical operation of a device in a humid environment can trigger electrochemical reactions that can lead to short circuits and malfunctions on the assembly. In this context, a large number of terms and methods are mentioned, such as CAF (conductive anodic filament), anodic migration phenomena, dendrite growth, cathodic migration, ROSE (resistivity of solvent extract), ionic contamination, SIR (surface insulation resistance), impedance spectroscopy, etc., which are used and interpreted differently. The aim of the document is to achieve a uniform use of language and to list the possibilities and limitations of common measurement methods. The focus of the document is on the error pattern of electrochemical migration on the surface of assemblies with cathodic formation of dendrites.
Evaluation of different test methods of control units under high humidity load are not part of this document.