kc-unit 9 - ISE 372/388...

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1 ISE 372/388 RoHS and its challenges, impact and testing By Winco K.C. Yung,  Associate Professor PhD, MSc(Eng), BEng, CEng, MIEE, MHKIE, SrMHKSQ, ISO9000 Assessor Honorary Advisor, HK Printed Circuit Association Centre-in-charge, PCB Technology Centre Associate Director, AMT Research Centre Department of Industrial and Systems Engineering October 2006
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2 European Union’s directives W aste E lectrical and E lectronic E quipment ( WEEE ) - require manufacturers to take responsibility for disposal, recycling and/or reuse of their products at end of life. R estriction o n H azardous S ubstances ( RoHS ) - ban or severely curtail the use of certain materials WEEE takes effect on August 13, 2005 RoHS takes effect on July 01, 2006
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3 Categories of electrical and electronic equipment covered by the  WEEE/RoHS directive Large household appliances Small household appliances (Clocks, watches and equipment for the purpose of measuring, indicating or registering time) IT and telecommunication equipment Consumer equipment Lighting equipment Electrical and Electronic tools (with the exception of large-scale stationary industrial tools) Toys, leisure and sports equipment Medical devices (with the exception of all implanted and infected products) Monitoring and control instruments Automatic dispensers
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4 Environmental legislation impacting the manufacturing industry Global status EU : China: Planning legislation - Regulation for Pollution Control of Electronics Products (RPCEP), likely to come into force before July 01, 2006. Japan: No lead ban at present but many Japanese manufacturers already changing to lead-free technology as a result of recycling laws. Lead solder ban is planned. USA : Plans for legislation in California and other States. 15 states have active, or pending, WEEE-like product take-back laws. 5 states dictate that manufacturers provide advance notice of mercury content and a further 5 states insist on a special label. Rest of world: likely to follow.
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5 RoHS - R estriction o n H azardous S ubstances The role of RoHS is to reduce harmful substances [materials] at source , ensuring that these hazardous substances are not leached into the environment by equipment which inevitably fails to be recycled. RoHS : EU Member States shall ensure that, from 1 July 2006 , new electrical and electronic equipment put on the market does not contain : [ RoHS Compliance means within RoHS Limits ] 1. Lead ( Pb ) <0.10% component weight = <1000 PPM 2. Mercury (Hg) <0.10% of component weight = <1,000PPM 3. Cadmium (Cd) <0.01% of component weight = < 100 PPM 4. Hexavalent Chromium (CrVl) <0.10% of component weight = <1,000PPM 5. P oly b rominated b iphenyls ( PBB ) or P oly b rominated d iphenyl e thers ( PBDE ) [Flame
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This note was uploaded on 10/02/2011 for the course ME ISE388 taught by Professor Kc during the Spring '11 term at NYU Poly.

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kc-unit 9 - ISE 372/388...

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