ABSTRACT

Significant discrepancies between the chemically active substance concentrations in the database and the actual environment can lead to deviations in anti-corrosion design and material selection during electronic product development and even lead to incorrect estimation of product lifetime. This literature research aims to provide a basis for updating the database of gaseous chemical concentrations, which are prone to triggering corrosive effects in power electronic modules and equipment. The current pollutant concentration standards applicable to electronic equipment, as well as agencies and research institutes with relevant expertise, are presented first. The distribution of pollutant concentrations in different regions of the world is shown through literature review and data collection. Moreover, changes in pollutant concentrations over the last 30 years in several German cities are also presented. The rationale and need for updating the European environmental classification are discussed based on the analysis of the collected data and comparison with existing standards.

摘要

数据库中的化学活性物质浓度与实际环境存在显着差异，会导致电子产品开发过程中的防腐设计和材料选择出现偏差，甚至导致对产品寿命的错误估计。该文献研究旨在为更新易于在电力电子模块和设备中引发腐蚀效应的气态化学浓度数据库提供基础。首先介绍适用于电子设备的现行污染物浓度标准，以及具有相关专业知识的机构和研究机构。通过文献查阅和数据收集，展示了世界不同地区污染物浓度的分布情况。而且，还介绍了过去 30 年德国几个城市中污染物浓度的变化。基于对收集到的数据的分析和与现有标准的比较，讨论了更新欧洲环境分类的基本原理和必要性。