Our Environmental Impacts

We will continuously work to improve our performance toward these commitments, and we expect the same commitments from our suppliers and other business partners.

Committed to Protect the Environment

Committed to Protect the Environment

The environment is at the top of the agenda for governments, civil society and citizens in general. At AOS we are increasingly turning our attention to the environmental impact of our activities, products and services. We are actively committed to improve the efficiency of products, reduce the energy consumption and promote low-carbon economic growth. We also continuously help our clients and industry supply chain to realize sustainable development.

We recognize that environmental responsibility plays an important part in the manufacturing of our products. The semiconductor production process, including the semiconductor wafer manufacturing and packaging process, generates air emissions, liquid wastes, waste water and other industrial and hazardous materials. We understand the impact our operations have on the environment, the community, as well as the health and safety of our employees, contractors, and suppliers. Therefore, we are fully committed to environmentally sustainable business practices and to minimizing the environmental impact across our supply chain. We expect our suppliers and vendors to adhere to the same environmental business practices.

As part of our broader business strategies, we continue to develop innovative, proprietary and cutting-edge technology to design and manufacture power semiconductor products that meet the high standards of our customers. These standards include the achievement of specified power and electric efficiency of various consumer products. We believe our advanced technology enables us to deliver products that saves energy and improves power efficiency of consumer electronics, which has a positive impact on our environment.

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Environmental Management

We have implemented the International Organization for Standardization (“ISO”) 14001 environmental management system in our manufacturing facilities in China and Oregon. We also require our subcontractors, including foundries and assembly houses, to meet ISO 14001 standards. We have adopted pollution control measures for the effective maintenance of environmental protection standards consistent with the requirements applicable to the semiconductor industry in China and the U.S. Our key suppliers are either ISO14000 or EMAS certified.

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AOS_ISO Objectives Targets


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Greenhouse Gas Emission

Climate change has been identified as one of the greatest challenges facing nations, governments, businesses and citizens over future decades. Climate change has implications for both human and natural systems and could lead to significant changes in resource use, production and economic activity. In response, AOS has been recognized in accordance with ISO 14064-1 worldwide standard, which means that we develop and implement programs to limit greenhouse gas (GHG) concentrations. Such GHS initiatives rely on the quantification, monitoring, reporting and verification of GHS emissions or removals.

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Product-Related Environmental Sustainability

As a responsible global citizen, AOS is committed to protecting our environment by being a green supplier. We began this effort in August 2004 by converting our products to be RoHS compliant and achieved full RoHS conversion in July 2005.

We have also adopted a Green Policy, which aims to protect the environment through our efforts to become a green supplier. We are converting our products to be compliant with the EU Directive regarding the Restriction of Hazardous Substances (“RoHS”), which requires that the products do not contain more than agreed levels of toxic substance. Our manufacturing facilities in China also obtained QC080000 certification, which is an IECQ Certificate of Conformity Hazardous Substance Process Management for European Directive 2002/95/EC requirements and a Certificate of Green Partner for Sony Green Partner Program. We avoid using these restricted materials to the extent possible when we design our products.

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ISO Certified
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ISO Certified

Our Green Commitments

Our goal is to provide you with environmentally friendly products that meet regulatory requirements and your expectations/requirements on hazardous substances.

Green Policy >

REACH Declaration >

Environment Compliance Statement >

High Temperature Solder Statement >

Our Green Commitments

Our goal is to provide you with environmentally friendly products that meet regulatory requirements and your expectations/requirements on hazardous substances.

Green Policy >

REACH Declaration >

Environment Compliance Statement >

High Temperature Solder Statement >

RoHS Directive

On the Restriction of the use of certain Hazardous Substances in electrical and electronic equipment) and its amendments

What is the requirement of RoHS Directive?

The EEE equipment put on the EU market, the following substances are restricted to use and don’t exceed the Maximum Concentration Value (MCV) by weight in homogenous material except for some exemption applications:

  • Cadmium (Cd) and its compounds = 100ppm
  • Lead (Pb) and its compounds = 1000 ppm
  • Mercury (Hg) and its compounds = 1000 ppm
  • Hexavalent Chromium (Cr6+) and its compounds = 1000 ppm
  • Polybrominated Biphenyls (PBBs) = 1000 ppm
  • Polybrominated Diphenyl Ethers (PBDEs) = 1000 ppm
  • Bis(2-ethylhexyl) phthalate (DEHP) = 1000 ppm
  • Dibutyl phthalate (DBP) = 1000 ppm
  • Benzyl butyl phthalate (BBP) = 1000 ppm
  • Diisobutyl phthalate (DIBP) = 1000 ppm

What has AOS done to meet RoHS requirements?

Starting in August 2004, we began converting our products to RoHS compliance and achieved RoHS compliance conversion in July 2005. We continue to follow the RoHS update/amendments, to search/assess alternative materials for our customers' further “Green” products.

View RoHS Compliance Declaration >

Does AOS have any plan in place to remove the RoHS exemption application?

We applied RoHS exemption 7(a): “Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead” in some power management devices, used as 1st level internal connection (Die bonding, Clip bonding), to achieve unique properties, such as the high melting point and thermal conductivity.

View the Exemption Application Explanation >

REACH Regulation

(Registration, Evaluation, Authorization and Restriction of Chemicals)

What is the requirement of REACH regulation?

REACH is a regulation of the European Union, which is adopted to improve the protection of human health and the environment from the risks posed by chemicals.

In principle, REACH applies to all chemical substances, not only those used in industrial processes but also in our day-to-day lives.

REACH managed the chemicals by the ways of Registration, Evaluation, Authorization, and Restriction with specific conditions of Article, Preparation, and Substance put on the EU market.

What has AOS done to meet the REACH requirement?

AOS products are articles defined in REACH and do not release substances under their regular use. Suppliers of the article should provide recipients with information on SVHC candidates if products present above a concentration limit of 0.1% on an article level. In addition, AOS products are required to meet REACH Annex XVII requirement (restricted substance under specific application).

We have reviewed our products’ BOM and obtained information from our supply chain along with SVHC candidates’ certificate.

View REACH Declaration >

Green Product

(Halogen Free/Low Halogen)

What is the requirement of Green?

More and more downstream users have required to low halogen/halogen free products, and industrial associates published the industrial standards for low halogen/halogen free definition, such as IEC 61249-2-21, JS-709, IPC 4101B, and JPCA-ES01.

AOS defined Green (Halogen free/Low Halogen) listed below with the applied scope and typical purpose for all substances as: resin, rubber, organize materials, used as flame retardant.

SubstanceLimitations on homogenous material level

Bromine< 900 pm

Chlorine< 900 pm

Total Bromine and Chlorine< 1500 ppm

Antimony< 900 ppm

What has AOS done to become a greener Company?

In 2010, all of our packages were converted to Green packages. Larger packages remain non-halogen free versions, depending on customers’ demand.

Adding the suffix “L” to part numbers is used to distinguish Green devices from non-halogen free devices. For example, AOT10N60L is a green version device, and AOT10N60 is a non-halogen free device.

View AOS Green Policy >

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