Electrostatic Discharge (Esd) Precautions - Siemens A80850 User Manual

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

Static electricity
components such as the integrated circuits commonly used throughout the
electronics industry. Therefore, procedures have been adopted industry-wide which
make it possible to avoid the sometimes invisible damage caused by electrostatic
discharge (ESD) during the handling, shipping, and storage of electronic modules
and components. Siemens has instituted these practices at its manufacturing facility
and encourages its customers to adopt them as well to lessen the likelihood of
equipment damage in the field due to ESD. Some of the basic protective practices
include the following:
Ground yourself
•
components.
Remove power from card cages and assemblies before removing or installing
•
modules.
Remove circuit boards (modules) from card cages by the ejector lever only. If an
•
ejector lever is not provided, grasp the edge of the circuit board but avoid
touching circuit traces or components.
Handle circuit boards by the edges only.
•
Never physically touch circuit board or connector contact fingers or allow these
•
fingers to come in contact with an insulator (e.g., plastic, rubber, etc.).
When not in use, place circuit boards in approved static-shielding bags, contact
•
fingers first. Remove circuit boards from static-shielding bags by grasping the
ejector lever or the edge of the board only. Each bag should include a caution
label on the outside indicating static-sensitive contents.
Cover workbench surfaces used for repair of electronic equipment with static
•
dissipative workbench matting.
Use integrated circuit extractor/inserter tools designed to remove and install
•
electrostatic-sensitive integrated circuit devices such as PROM's (OK Industries,
Inc., Model EX-2 Extractor and Model MOS-40 Inserter (or equivalent) are highly
recommended).
Utilize only anti-static cushioning material in equipment shipping and storage
•
containers.
For information concerning ESD material applications, please contact the Siemens
Technical Support Staff at 1-800-793-7233. ESD Awareness Classes and additional
ESD product information are also available through the Technical Support Staff.
can damage electronic
before touching
circuitry, particularly
card cages, assemblies,
v
Document No.: SIG-00-11-10
low voltage
modules, or
Version: A.1