TSMC leads global chip-makers in saving water
Taiwan Semiconductor Manufacturing Co. (TSMC, ), the world’s largest contract chipmaker, uses 5.66 liters of water for every square centimeters of wafer produced, saving several times more water than rivals in the United States, Japan and South Korea, company data showed Thursday.
For the same size of wafer produced, TSMC saves 3 times more water than manufacturers in the U.S., twice as much as those in Japan and 1.5 times more water than companies in South Korea, which are home to the world’s major chip-makers, TSMC data showed.
It noted one of the ways it is able to conserve water is by reusing water.
“TSMC uses each drop of water 3.5 times, and the company this year aims to increase the recycling rate to 4 times,” said Tony Chen, a section official of Fab 15, one of the compmay’s three facilities that produce 12-inch wafers, in Central Taiwan Science Park in Taichung.
TSMC recycles 87.5 percent of its used water and produces 240,000 metric tons of recycled water every day, or 87.6 million metric tons a year, Chen said.
The company has been committed to developing new water recycling technology with the aim of making the best use of water.
TSMC also spends some NT$800 million (US$25.5 million) on water saving facilities each year, said Arthur Chuang, a section official of Fab 15.
Tourists Back Taiwan’s Water
Visitors from Europe and the U. S. are most supportive of local hotels’ water conservation practices, according to an executive of the Landis Hotel Taipei.
The executive said that since 2009, the Landis has attached great importance to water conservation and has installed sensorcontrolled taps in its public toilets which use 30 percent less of water than ordinary taps.
In addition, the executive said, the hotel puts in every room a card reminding guests who stay for more than two nights that their bed sheets and towels will be changed everyday only if they put the card upside down on their bed each morning.
Occupants who choose not to change their bedding will get a credit of NT$100 (US$3) against their bill each day, said the executive.
The practice is followed by all of the six hotels operated by the Landis group across Taiwan, said the executive.
European and American guests seem most supportive of such measures to conserve water, followed by Japanese tourists and Taiwan tourists in that order, said the anonymous executive.
Water conservation is encouraged as Taiwan launched a new phase of water rationing this week to deal with its worst drought in years. Inadequate rainfall, sediment buildup in reservoirs, leaky pipes and wasteful consumers have led to water levels in reservoirs dropping to 50 percent or less of their capacity.
Tourists can be seen walking around the Shihmen Reservoir ( ), yesterday. While a cold front brought a new wave of rainfall, as of 5 p.m., the water level was still 25.16 meters short of full capacity. It currently sits at 25 percent of its capacity.