Quantitative Analysis of Metallic Resources in LSI Package for ICT Equipment

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Other Title
  • ICT機器用LSIパッケージに含有される金属資源分析
  • ICT キキヨウ LSI パッケージ ニ ガンユウ サレル キンゾク シゲン ブンセキ

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Description

Higher performances are required for ICT in recent years, and more precious metals and minor metals are used in ICT equipment. There is an issue about the stable supply of those metals in Japan because of the demand increasing and the price rising by the economic development of Asian nations. Several studies on the recycling technologies and the alternative materials are conducted as means to secure the stable supply of metallic resources. To advance these studies, it is important to acquire the detailed information about the metallic resources contained in ICT equipment.<BR>In this work, we have selected LSI packages in desktop computers and analyzed the conditions of the metallic resources. In addition, economic value and TMR of the metallic resources in the LSI packages were calculated by using the analytical results to ascertain the effective recycling of the metallic resources. As a result, the concentrations of the metallic resources were greatly different in the shape and the age of the LSI packages. In LSI package recycling, we found that gold (Au) was a key metal in the viewpoint of economical and resource consumption, while the influence of copper (Cu) with high concentration in the LSI packages was relatively small.

Journal

  • ENVIRONMENTAL SCIENCE

    ENVIRONMENTAL SCIENCE 26 (3), 217-225, 2013

    SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN

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