Cl-Containing Microplastics from the Environment

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Abstract:

One of the critical process steps in the assembly of integrated circuits is the making of the connection between the silicon chip and the outside world. This is done by a thermo-sonic welding process of sometimes more than 800 copper wires to the aluminum bond pads. The Al-Cu intermetallic compound formed during this process is sensitive for trace amount of chloride from the environment. It is found that Cl-containing microplastics are the source of this chloride and further analyzing these particles helps to identify the origin of these particles.

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Periodical:

Solid State Phenomena (Volume 314)

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29-33

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Online since:

February 2021

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© 2021 Trans Tech Publications Ltd. All Rights Reserved

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