Esd Protection - Samsung SM-F711B Service Manual

1. Safety Precautions

1-2. ESD Protection

ESD (Electrostatic Discharge)
: It is the sudden flow of electricity between two electrically charged objects caused by contact,
an electrical short, or dielectric breakdown. ESD can cause negative effects on mobile phone,
especially electrical parts.
Many semiconductors and ESDs in electronic devices are particularly sensitive to static discharge
and can be easily damaged by it. We recommend protecting these components with conductive
anti-static bags when you store or transport them.
Always use an anti-static strap or wristband and remove electrostatic buildup or dissipate
static electricity from your body before repairing ESDs.
Properly shield the work environment from accidental electrostatic discharge before opening
packages containing ESDs.
The potential for static electricity discharge may be increased in low humidity environments,
such as air-conditioned rooms. Increase the airflow to the working area to decrease the chance of
accidental static electricity discharges.
EPA (ESD Protected Area)
: It is the area where should be protected from ESD, i.e. PBA treatment area, parts storage area,
assembly and disassembly area. It should be designated with EPA indicator.
EOS (Electrical Overstress)
: It is a kind of spark caused by abnormal over voltage or current, and it makes damages to
components or system.
Ensure that soldering irons have AC adapter with ground wires and that the ground wires are
properly connected. Use only desoldering tools with plastic tips to prevent static discharge.
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung's written authorization is strictly prohibited.
CONFIDENTIAL