RoHS and “Green Packaging” Policy

For semiconductor devices assembled in plastic packages, it has been standard practice to add halogen components (PBBs and PBDE) as a flame retardant to the plastic and to plate the contact fingers with tin-lead finishing material to ensure optimal solderability. Both practices are being discontinued due to their impact on the environment.

The Restriction of Hazardous Substances Directive (RoHS) 2002/95/EC was adopted in February 2003 by the European Union. The RoHS directive took effect on July 1, 2006 The aim of this directive is to ban heavy metals (cadmium, hexavalent chromium, lead, mercury) and two brominated compounds (PBB, polybrominated biphenyls and PBDE, polybrominated diphenyl ethers).

Other governments, including the People's Republic of China (PRC), Japan, and the US Environmental Protection Agency, are now following Europe’s lead and enacting similar legislation. RoHS compliance will be required on a global basis for all semiconductor suppliers over the next several years.

Acutechnology Semiconductor is fully committed to environmental protection and will release to manufacturing only products in packages which fully comply with the RoHS requirements. RoHS compliant products meet the regulatory thresholds for cadmium, hexavalent chromium, lead, mercury, polybrominated biphenyls (PBBs) and polybrominated diphenyl ethers (PBDEs). 

Acutechnology will only qualify industry standard “green” packages. A green package means being both halogen-free and Pb-free.

The definition of halogen-free and Pb-free means that these substances are not added intentionally. However, they may be present as an impurity up to a specified upper limit. Currently, there is no adopted industry standard available for such limits. Values are being discussed and already widely applied in the semiconductor industry; there is high probability that an agreement will soon be reached to standardize these values. Until then, Acutechnology Semiconductor defines Green as follows:

Acutechnology Green Packaging

Pb  

< 1000 ppm  

Hg  

< 1000 ppm  

Cd 

< 100 ppm  

Cr+6  

< 1000 ppm  

Polybrominated biphenyl  

< 1000 ppm  

Polybrominated diphenyl ether  

< 1000 ppm  

Bromine  

< 900 ppm  

Chlorine  

< 900 ppm  

Antimony  

< 900 ppm