聚酰亚胺薄膜在高温区的空间电荷分布

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319) Pub Date : 1999-10-17 DOI:10.1109/CEIDP.1999.804604

Y. Muramoto, M. Nagao, S. Mitsumoto, M. Fukuma, M. Kosaki

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引用次数: 6

摘要

我们一直在研究聚酰亚胺(PI)薄膜的击穿特性。本研究的目的是阐明空间电荷对PI薄膜在高温区击穿机理的影响。电强度(Fb)随温度升高而降低，直流传导电流(I)随温度升高而增大。在室温到100/spl℃之间，PI薄膜中没有检测到空间电荷。在高温区，在接近击穿场的高电场作用下，阳极附近容易形成异空间电荷，但在击穿前异空间电荷减少。这些结果表明，基于空间电荷修饰的传导电流的热击穿过程可能是PI薄膜在高温区域的击穿机制。

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Space charge distribution of polyimide films in high temperature region

We have been studying the breakdown characteristics of polyimide (PI) films. The purpose of this study is to clarify the effect of space charge on breakdown mechanism of PI films in the high temperature region. The electric strength (Fb) decreased with temperature and the DC conduction current (I) increased with temperature. Between room temperature and 100/spl deg/C, there is no space charge detected in PI films. In the high temperature region, hetero space charge tends to be formed near the anode under the high electric field approaching to the breakdown field, but it decreases just before breakdown. These results show a thermal breakdown process based on the space charge modified conduction current is considered as a possible breakdown mechanism of PI films in the high temperature region.

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来源期刊

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)

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