無電解銅めっきの均一析出性

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書誌事項

タイトル別名
  • Uniformity of Electroless Copper Deposition.
  • ムデンカイ ドウ メッキ ノ キンイツ セキシュツセイ

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説明

Several factors associated with the uniformity of electroless copper has been investigated. It was confirmed that the higher the aspect ratio, the lower the uniformity of the deposition. It is because as hole diameter decreases and aspect ratio increases the amounts of hydrogen gas trapped in through-holes in the boad increases. Inclinating or vibrating the boad is an effective way of reducing the amount of trapped gas and improving deposition uniformity. Deposition uniformity was also increased by decreasing the concentration of the dissolved oxygen in the bath. This is related to the surface activation of deposited copper by the dissolved oxygen. The EDTA concentrations in the plating bath also influenced deposition uniformity. Uniform copper obtained when EDTA concentrations were increased.

収録刊行物

  • 表面技術

    表面技術 42 (7), 736-739, 1991

    一般社団法人 表面技術協会

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