Title :
Space charge behaviour in the insulation layer of a metal-base printed wiring board
Author :
Fukunaga, Kaori ; Maeno, Takashi ; Okamoto, Kenji
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
Abstract :
The space charge profiles of a metal-base printed wiring board were observed. The space charge of an aged sample formed the same distribution as that of copper migration inside the insulation layer. It is found that space charge observation by means of the pulsed electroacoustic method is useful for investigating the aging phenomena of a printed wiring board
Keywords :
ageing; charge measurement; electromigration; insulating coatings; power electronics; printed circuit testing; pulse measurement; space charge; Cu ion migration; aging phenomena; electric field distribution; insulation layer; metal-base PWB; metal-base printed wiring board; power electronic devices; pulsed electroacoustic method; space charge measurement; space charge profiles; Aging; Cathodes; Conductivity; Electrons; Humidity measurement; Insulation; Probes; Space charge; Testing; Wiring;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on
Conference_Location :
Vasteras
Print_ISBN :
0-7803-4237-2
DOI :
10.1109/ICSD.1998.709236
