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1996 Electronics Industry Environmental Roadmap - Civil and ...

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Emerging Technologies<br />

Etch Chemical/solid waste from etched copper <strong>and</strong><br />

sacrificial tin etch resist from outerlayer processing<br />

Cleaning (used between many steps) Liquid waste stream<br />

General facilities Energy consumption for lighting, air conditioning,<br />

equipment<br />

102<br />

Table 6-3. PWB process steps <strong>and</strong> related environmental implications.

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