BGAビルドアップ基板ピンホールの非破壊検査

概要

論文の詳細を見る
The influence of impulse corona discharge on pinholes of a EGA build up print board was investigated. Pinholes were corona discharged by both single and step up impulse methods, respectively. And, microscope photos of the damage with corona discharge were compared. The damage caused by applying single pulse 300 times is negligible and even much less than that due to applying step up pulse 10 times. It was concluded that pinholes of EGA print board can be detected surely and without destruction by applying single impulse of 3.0 kV.
帝京平成大学の論文
1999-12-30