Kortek corporation
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10. Plasma display is an array of pixels(cells). Therefore, if at least 99.9% pixels keep normal, the appropriate
panel is judged as ‘
approved product’
. Enen though some of pixels keep luminescent or always light off, do
not worry because the panel is approved.
1.3. Precautions for Electrostatically Sensitive Devices(ESDs)
1. Some semiconductor(“solid state”) devices are easily damaged by static electricity. Such components are
called Electrostatically Sensitive Devices(ESDs): examples include integrated circuits and some field-effect
transistors. The following techniques will reduce the occurrence of component damage caused by static
electricity.
2. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge
from your body by touching a known earth ground. Alternatively, wear a discharging wirst-strap device.
(Be sure to remove it prior to applying power-this is an electric shock precaution)
3. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to
prevent accumulation of electrostatic charge.
4. Do not use Freon-propelled chemicals. These can generate electrical charges that damage ESDs.
5. Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.
6. Use only an anti-static solder removal device. Many solder removal devices are not rated as “anti-static”;
these can accumulate sufficient electrical charge to damage ESDs.
7. Do not remove a replacement ESD from its protective package until you are ready to install it. Most
replacement ESDs are packaged with leads that are electrically shorted together by conductive foam,
aluminum foil or other conductive materials.
8. Immediately before removing the protective material from the leads of a replacement ESD, touch the
protective material to the chassis or circuit assembly into which the device wiil be installed.
9. Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes
together, or lifting a foot from a carpeted floor can generate enough static electricity to damage an ESD.