Compaq Armada E700 Compaq ArmadaStation EM Maintenance and Service Guide - Page 24

REMOVAL AND REPLACEMENT PRELIMINARIES, Electrostatic Discharge

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4 chapter REMOVAL AND REPLACEMENT PRELIMINARIES This chapter provides general service information for the Compaq Expansion base. Adherence to the procedures and precautions described in this chapter is essential for proper service. 4.1 Electrostatic Discharge A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not be affected at all and will work perfectly throughout a normal cycle. Or it may function normally for a while, then degrade in the internal layers, reducing its life expectancy. Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions. Removal and Replacement Preliminaries 4-1

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Removal and Replacement Preliminaries
4-1
chapter
4
R
EMOVAL AND
R
EPLACEMENT
P
RELIMINARIES
This chapter provides general service information for the Compaq Expansion base.
Adherence to the procedures and precautions described in this chapter is essential for
proper service.
4.1
Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conductor can destroy
static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but
damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not
be affected at all and will work perfectly throughout a normal cycle. Or it may function
normally for a while, then degrade in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many
cases, the discharge contains enough power to alter device parameters or melt silicon
junctions.