NDLI: Space Charge Observation in Aramid/Epoxy Insulations Under DC Electric Fields

Content Provider	IEEE Xplore Digital Library
Author	Fukunaga, K. Okamoto, K. Maeno, T.
Copyright Year	1999
Abstract	With the progress of printed circuit technology, the reliability of bulk insulation has become important, as well as that of surface insulation, particularly in multilayer boards and embedded boards. We observed the space charge behavior of various insulating materials used in printed circuit boards, and found that internal charges move in aramid/epoxy specimens under dc electric fields. The electric field near the surface of the specimen, therefore, was increased to have more than twice the strength of the average applied field. The space charge profile was influenced by the internal structure, and its formation was accelerated by the increase of temperature. Since the space charge profile affects the internal electric field distribution, the internal charge behavior should be examined with respect to the design of the insulation of a printed circuit board
Sponsorship	IEEE Components, Packaging, and Manufacturing Technology Society
Starting Page	502
Ending Page	507
Page Count	6
File Size	934844
File Format	PDF
ISSN	15213331
Volume Number	29
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space charge Dielectrics and electrical insulation Printed circuits Pulsed electroacoustic methods Nonhomogeneous media Circuit testing Electronic equipment testing Acoustic pulses Pulse generation Acoustic waves space charge pulsed electroacoustic method Ion migration
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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