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本文基于传统有机保护材料聚酰亚铵（PI）保护晶闸管阻断电压低和漏电流大的问题，开展了晶闸管结终端造型表面保护材料研究工作，通过分析晶闸管结终端造型表面电场理论原理，提出了一种电活性无机膜用于保护晶闸管结终端造型表面。通过与传统PI有机保护材料进行对比分析。结果表明，电活性无机膜材料能够改善表面电场分布，从而能够提高阻断电压和降低漏电流，可以全面优化晶闸管的设计制造技术，提高晶闸管的稳定性和可靠性。
Abstract：This study focuses on the research of shaped surface protection materials for thyristor junction termination profiles,addressing the issues of low blocking voltage and large leakage current of thyristors protected by polyimide(PI),a traditional organic protective material.By analyzing the theoretical principle of the shaped surface electric field of thyristor junction termination profiles,an electroactive inorganic membrane is proposed for protecting the shaped surface of thyristor junction termination profiles.A comparative analysis is conducted between this new film and the traditional PI organic protective material.The results show that the electroactive inorganic membrane material can improve the distribution of the shaped surface electric field,thereby increasing the blocking voltage and reducing the leakage current. This material can comprehensively optimize the design and manufacturing technology of thyristors,as well as enhance the stability and reliability of thyristors.
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基本信息:
DOI：10.20222/j.cnki.cn61-1124/tm.2025.10.008
中图分类号:TN40
引用信息:
[1]高山城,范晓波,高凌屹,等.电活性无机膜对芯片保护作用机理研究及器件优化[J].电力电子技术,2025,59(10):137-141.DOI:10.20222/j.cnki.cn61-1124/tm.2025.10.008.
基金信息:
南方电网重点科技支撑项目（2023ZDXM-GY-124）
2025-10-20
2025-10-20