Evaluation of electronic components in life cycle assessment |
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Authors: | Takayoshi Ueno Toru Shiino Hiroshi Onishi |
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Institution: | (1) Human Environmental Systems Development Center, Matsushita Electric Industrial Co., Ltd., 3-1-1 Yagumo-Nakamachi, Moriguchi, Osaka 570-8501, Japan Tel. +81-6-6906-4872; Fax +81-6-6904-5163, JP |
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Abstract: | Life cycle assessment (LCA), a quantitative method for evaluating the total environmental impact of a product, from the materials
in its manufacture to its final disposal, is playing an increasingly important role in manufacturing. When the LCA method
is applied to a product containing many kinds of electronic components, there is a need for life cycle inventory (LCI) data
on the components. This paper provides an original calculation of the LCI data for each electronic components industry. These
data show the amount of input energy and emissions into the atmosphere per yen of production yield. It is demonstrated that
the magnitude of the LCI data for each industry is essentially equal to that of the other industries. Furthermore, we conclude
that the LCI data for all electronic components are roughly equivalent, making it possible to calculate the LCI data of any
electronic component by simply multiplying the LCI data for the industry by the price of the component. Furthermore, after
comparing the materials production stages with the component manufacturing stage in the calculation, it became clear that
for several component industries the materials production stage could not be omitted from the calculation.
Received: April 10, 1998 / Accepted: February 8, 1999 |
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Keywords: | LCA Electronic component Materials production Component manufacturing Component price |
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