533 Cleaning Method of Laser Drilled Hole on Printed Wiring Boards by Plasma Treatment

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概要

• 論文の詳細を見る

• We propose a new method for cleaning blind via holes after laser drilling of PWBs using oxygen plasma treatment. This report dealt with three kinds of PWB materials : epoxy resin and two kinds of aramid fiber reinforced plastics (AFRP : Technora or Kevlar fiber reinforcement). We observed the drilled holes after plasma treatment using both an optical and a scanning electric microscope (SEM). It was confirmed that adequate etching took place in the drilled holes by plasma treatment. We also compared the hole wall and hole bottom after plasma treatment with ones after chemical etching. It was clear that there was no damage to the aramid fiber tip on the hole wall, and that a smooth roughness of the hole wall was obtained by means of plasma treatment. As a result, we demonstrated that the plasma treatment is effective in cleaning the laser drilled holes of PWBs.

• 一般社団法人日本機械学会の論文

著者

• Minagi R.

  Faculty Of Eng. Doshisha Univ.

• Hirogaki T.

  Doshisha University

• Aoyama E.

  Doshisha University

• Hirogaki T.

  Faculty of Eng., Doshisha Univ.

• Aoyama E.

  Faculty of Eng., Doshisha Univ.

• Katayama T.

  Faculty of Eng., Doshisha Univ.

• Matsuoka T.

  Faculty of Eng., Doshisha Univ.

• Inoue H.

  Faculty of Eng., Aichi Univ. of Tec.

関連論文

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• 533 Cleaning Method of Laser Drilled Hole on Printed Wiring Boards by Plasma Treatment
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