Texas Instruments

Environmental responsibility

Water use

Results | Looking ahead

Water, specifically ultrapure water, is vital for manufacturing semiconductor chips. Minerals found in potable water from public utilities, wells or other sources can leave a molecular residue on chips that can short-out circuits. That's why we carefully treat water, including deionization and purification, before using it in our processes.

In 2013, our North Texas sites received greater amounts of water containing impurities, which couldn't be used in our manufacturing processes. As a result, more water was rejected instead of recycled, leading to greater consumption. However, TI shut down operations at two older manufacturing sites during the year, which helped reduce overall consumption worldwide.

Also during the year, TI continued to monitor water use and drought conditions in areas where we operate. We reduce consumption in water-stressed regions, and implement water reduction and reuse projects at sites globally. As part of our routine risk-assessment process, we assess water availability when considering new sites or expansions.

Results

  • Decreased total water use globally by 1 percent, primarily due to the shutdown of operations at two less-efficient facilities during the year. In total, we used 7 billion gallons of water. Of this amount, we extracted 4.5 billion gallons and were able to avoid using another 2 billion gallons because of our reuse and recycling processes (saving enough water to fill 3,030 Olympic-sized swimming pools). Reused and recycled water accounts for about 29 percent of our water consumption – an average of about 5.5 million gallons of water every day.
  • Completed 19 water-saving projects that conserved 248 million gallons and reduced our costs by $994,000.
  • Continued efforts to reduce the amount of extracted water required to manufacture our products. Our goal is to reduce water usage per chip by 45 percent by 2015 (based on our 2010 baseline); however, after three years, usage per chip is up by 2 percent.
  • Maintained transparency on water-use and conservation efforts. In addition to this report, TI continues to voluntarily report its water footprint to the CDP.




Looking ahead

Once we have completed the shutdown of operations at two older manufacturing sites, we expect to see some additional water-use reductions in 2014. Additional plans for managing water use in 2014 include:

  • Forming a North Texas water team to strategically focus and further increase our water-efficiency efforts in the region. Continued growth in the area, combined with ongoing drought, has placed additional stress on the water supply. We will also evaluate strategies used in North Texas for possible implementation at TI sites around the world.
  • Reviewing and refining current baseline water usage and water balances at all sites to ensure consistency in measuring and reporting.
  • Funding capital-improvement projects to further reduce, recycle and reuse water.