Environment, Health & Safety

ADI and its employees are committed to protecting the environment and the health & safety of fellow employees, customers, and the public.

Greenhouse Gas Emissions Reduction Practices


Greenhouse gas (GHG) emissions that are generated directly and indirectly are categorized into “scopes” based on the source of the emissions. The Greenhouse Gas Protocol defines Scope 1 emissions as direct from sources owned or controlled by the entity, including emissions from fossil fuels used on site. Scope 2 emissions are indirect emissions that result from generating electricity, heating, and cooling offsite but purchased by the entity. Scope 3 emission sources include purchased goods and services; fuel and energy related activities not included in Scope 1 or 2; waste generated in operations, business travel, employee commuting; downstream transportation and distribution; and end of life treatment of sold products.

Specific Actions/ Projects

The primary source of our GHG emissions are chamber cleanings in plasma etch tools used in manufacturing. We voluntarily installed abatement equipment on all newly purchased manufacturing tools and equipment that potentially emit GHGs.

We continue to monitor and evaluate industry developments for continuous improvement. Our GHG emissions are verified by a third party and we report GHG information from our manufacturing sites to the CDP. Our greenhouse gas emissions (Scope 1, Scope 2, and Scope 3 from business travel) are verified by a third party.

Our 2016 absolute Scope 1 emissions decreased by 24% from 2015, driven by improvements in our abatement systems. That resulted in an 8.7% reduction in our Scope 1 intensity emissions. We plan to maintain our performance to meet our 2020 goals.

2016 Actual Performance Against 2015 Normalized Goals
Parameter Site Normalized Goals Performance
Greenhouse Gas Emissions (CO2 + CO2e) Wafer Fabrication* 2.5% reduction from 2015 baseline 8.7% decrease
Assembly and Test** 0.5% decrease

*Scope 1 Emissions
** Scope 1 + 2 Emissions


We also monitor our emissions associated with purchased electricity, Scope 2 emissions, and understand that it’s an area we need to give more attention to as it contributes to the total Greenhouse Gas emissions of the company. Beginning 2017, our Ireland and Philippines facilities shifted to 100% renewable energy. With this move, we anticipate that our CO2 emissions from purchased electricity would significantly decrease compared to our 2015 baseline.


Below is our 2016 Scope 2 emissions compared to our 2015 data

2016 Scope 2 Absolute Emissions Compared to 2015
Parameter Site Performance
Tons of CO2e Wafer Fabrication 11.6% decrease
Assembly and Test 8.7% increase

Additionally, we monitor our Scope 3 emissions and promote practices that will increase employees’ consciousness about it. For example, our Philippines site provides shuttle buses and encourages employees to use them. This program not only benefits the employees by giving them a safe, comfortable, and free ride but also helps the community by reducing traffic with fewer cars on the road, reducing air pollution, avoiding the release of more CO2 emissions in the atmosphere, thereby helping mitigate the impacts of climate change. Our Wilmington facility, on the other hand, encourages employees to carpool. Those who carpool have access to prime parking spots. Lastly, we continue to take advantage of technological advancements to reduce emissions from business travel (e.g., teleconference and videoconference facilities).