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Global
Warming
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| As global warming effects
worsen, UMC hopes to fulfill its responsibility as a corporate citizen
by helping to reduce the increasing emissions of global greenhouse
gases. With a vision of sustained growth and operation, UMC's countermeasures
are listed below: |
1. Conduct inventory
and verification on greenhouse gas emissions at UMC.
2. Implement reduction plans toward major emission sources.
3. Decrease the consumption of energy and resources to indirectly
lower the emission of greenhouse gasses.
4. Enhance employees' training and education for environmental protection
within the company and raise awareness for the reduction of greenhouse
gas emission.
5. Emulate government projects and activities related to greenhouse
gas reduction.
6. Closely monitor international discussion about greenhouse gas emissions
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| Inventory and Verification |
| UMC completed the inventory
and verification in greenhouse gas emissions with TSIA (Taiwan Semiconductor
Industrial Association). The greenhouse gas emission inventory system
has been established and qualified by a third party, and UMC has passed
PFC emission requirements for all its Taiwan fabs. UMC will continue
to require annual third party greenhouse gas emission inventory to
ensure that UMC completely adheres to the current status of greenhouse
gas usage. |
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| Certificate for Passing GHGEV
(Greenhouse Gas Emissions Verification) for All UMC Taiwan Fabs
in 2005 |
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| Promotion of Energy-saving
Activities |
| Energy usage not only
consumes earth's resources but also results in CO2, which
contributes to the greenhouse effect. Therefore, to reduce the impact
on the environment, UMC continually evaluates various energy-saving
techniques that can directly and effectively reduce the energy consumption
of equipment. In addition, UMC promotes energy-saving programs in
the office and public areas by providing education to improve employees'
awareness and practices in daily energy-saving actions and greenhouse
gases reduction. |
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| PFC Emission Reduction
Goal and Plan |
| Currently, UMC has targeted
PFC emission reduction by "10% in 2010 compared to 1998 (the
emission of 1998 is the MMTCE average of 1997 and 1999) levels".
PFCs are Perfluorinated Compounds that are used in semiconductor processes,
including CF4, C4F6, SF6,
NF3, CHF3, C3F8, and C4F8.
Major elements of the PFC emission reduction plan include: |
1. Use C3F8
to replace C2F6 in semiconductor thin film process
to lower the emission volume of greenhouse gases.
2. Measure the utilization rate of machines that use PFCs and the
reduction rate of the treatment equipment to master the efficiency
of machines and hence conduct improvement measures toward inefficient
machines.
3. Conduct individual usage evaluation for each machine that uses
PFCs to better understand greenhouse gas emissions for each machine.
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| In the future, UMC will
continue researching and testing substitute gases, and lowering the
use of gases with a high potential of contributing to the greenhouse
effect by reducing the source emission. Meanwhile, in order to lower
the PFC emissions year by year, UMC plans to install high efficiency
PFC abatement systems after fully evaluating all new models. In addition,
UMC sets challenging goals with plans to reduce other greenhouse gas
emissions, save energy, reduce material and waste, and increase recycling. |
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