| 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
|
| |
| UMC's Climate
Change Policy Declaration |
|
|
Achieve carbon
neutral status via carbon management. |
|
|
Become a comprehensive low-carbon
solution provider. |
|
|
Leverage corporate resources
to cultivate low-carbon economy. |
| |
| Inventory and
Verification of Carbon Emissionn |
|
|
UMC has established greenhouse gas emission inventory
system following the requirement of ISO 14064-1 and Greenhouse
Gas Protocol. The GHG emission amount of all UMC fabs
since 2000 has been inventoried. |
| |
|
|
The major sources of UMC's
greenhouse gas emissions are CO2 from power generating
processes and PFCs from semiconductor manufacturing processes
such as CF4, C2F6, SF6,
NF3, CHF3, C3F8
and C4F8. These two resources account
for 90% of UMC's overall emission of greenhouse gases.
|
|
|
UMC joined the GHG emissions
and reductions inventory plan conducted by TSIA (Taiwan
Semiconductor Industrial Association) in 2006. Currently,
UMC has already passed third party verification for 2000
to 2008 GHG emission amounts in Taiwan. UMC will continue
to require annual greenhouse gas emission inventory checks
conducted by a third party to ensure that UMC completely
adheres to the current status of greenhouse gas usage.
|
| |
|
 |
| Note:The PFCs emission is calculated
using Intergovemmental Panel on Climate Change (IPCC)
tier2 method. The GWP value is bassed on the proposed
Fourth Assesment Report (FAR) of theIPCC. |
|
| |
 |
| Note: The verification statements
for 2000 to 2008 are in progress. |
|
| |
| Carbon Footprint
and Product Environmental Declaration Verification |
UMC's carbon footprint inventory was implemented on the
basis of the ISO 14040 series, and integrated with ISO 14064-1
greenhouse gas emission inventory data to complete eco-profile
calculations that were performed on the principles of BSI
PAS 2050. The inventory ranges from raw materials extraction
and manufacturing, wafer manufacturing and packaging and finally
to customer (cradle to grave life-cycle assessment).
UMC's product environmental declaration inventory followed
ISO 14040 series methodology to proceed with product life
cycle inventory calculations, including ISO 14064-1 greenhouse
gas emission inventory's GHG section. The inventory period
was from January to December 2008. The primary systems for
calculating environmental impact is limited to cradle to grave
(customer), as well as all raw materials extraction and manufacturing,
product manufacturing, and packaging materials and manufacturing,
including any transport between processes.
|
 |
 |
Verification Statement of Product
Life Cycle Greenhouse Gas Assertions
|
Verification Statement of Environmental
Product Declarations |
|
| |
UMC Carbon Management
Program
|
| |
| Carbon 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,
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.
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. |
| |
| Result
of PFCs Reduction |
| |
| 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. |
| |
| Participation
in CDP |
Since 2006, UMC
has participated in Carbon Disclosure Project (CDP) initiated
by major
global institutional investors to disclose information such
as greenhouse gas emissions, along with investment risks and
opportunities in dealing with climate change. This is to demonstrate
UMC's efforts and determination to respond to climate change. |
|
|
| |
|
|
