2 Safety Rules and Precautions
2.2 Electrostatic Precautions
2.2.1 Environment
You must observe the following electrostatic precautions:
Ensure that work benches, tools, and floor mats have a conducting surface
connected to ground. Before handling static-sensitive components and
assemblies, ground yourself to the conducting surface by using an anti-static
wrist strap.
When handling static-sensitive components and assemblies, do not wear
or use clothes made of wool, nylon or any other synthetic material. Such
fabrics are major sources of static build-up.
When handling static-sensitive components and assemblies, do not use
gloves and finger covers, unless they are made of cotton.
2.2.2 Tools
You need the following tools to perform the procedures described in this
handbook:
An anti-static wrist strap
A serviceable replacement unit
A Torx screwdriver
A Flathead screwdriver
A Philips crosshead screwdriver.
You must respect the following rules:
Ensure that all the tools which come into contact with static-sensitive
components are at the same voltage level as the conducting work surfaces
and floor mats.
These tools include soldering irons, oscilloscopes, power supplies, and
metal parts of tools and fixtures that are used to hold, assemble or test PBAs.
Do not use rough cleaners or erasers to clean the gold-plated contacts
on PBAs
Do not mark a PBA with a lead pencil or any other writing instrument
Do not use synthetic brushes to clean equipment, and do not use dry
cleaning methods.
3BK 21281 AAAA PCZZA Ed.13 19 / 90
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