In situ space charge measurement of PCB insulations during the ageing test

K. Fukunaga*, H. Tanaka, Y. Ohki, K. Okamoto, T. Maeno

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Influence of water absorption on internal space charge behaviour of an aramid/epoxy composite was firstly discussed based on the experiments using specimens after water absorption pre-treatment. More hetero charges were observed in the specimen treated at higher temperature. Chemical analyses suggested that the increase of hetero charges was due to the increase of ion impurities. Since insulating materials for printed circuit boards are generally tested at high temperature and high humidity, we have developed an in-situ space charge measurement system in an environmental chamber using the pulsed electroacoustic method. Hetero charges observed in the aramid/epoxy resin increased significantly at 40°C and 90 % RH. This insitu space charge measurement should contribute to understand the ionic migration phenomena as well as to evaluate the test conditions of printed circuit boards.

本文言語English
ホスト出版物のタイトル2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP '05
ページ585-588
ページ数4
DOI
出版ステータスPublished - 2005 12 1
イベント2005 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP '05 - Nashville, TN, United States
継続期間: 2005 10 162005 10 19

出版物シリーズ

名前Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
2005
ISSN(印刷版)0084-9162

Conference

Conference2005 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP '05
国/地域United States
CityNashville, TN
Period05/10/1605/10/19

ASJC Scopus subject areas

  • 工学(全般)

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