S540 Power Semiconductor Test System Administrative Guide
Section 4: Maintenance
S540-924-01 Rev. D / January 2019
4-3
Special handling of static-sensitive devices
System components can be damaged by electrostatic discharge (ESD). Wear a ground strap
and attach the clip lead to the grounding bar in the test head or the system cabinet frame
before working on the system. Assume all parts are static sensitive.
High-impedance devices are subject to possible static discharge damage because of the
high-impedance levels involved. When handling such devices, assume all parts are static sensitive:
Static-sensitive components should be transported and handled only in containers designed to
prevent or dissipate static buildup. Typically, these components are received in anti-static
containers made of plastic or foam. Keep these parts in their original containers until ready for
installation or use.
Remove the components from their protective containers only at a properly grounded workstation.
Also, ground yourself with an appropriate wrist strap while working with these components.
Handle the connectors only by their bodies. Do not touch the boards, pins, or terminals.
Any printed circuit board into which the device is to be inserted must first be grounded to the
bench or table.
Use only anti-static type desoldering tools and grounded-tip soldering irons.
Electrical hazard tasks
Definitions of electrical hazard tasks (as defined in the SEMI S2-0715a standard) are listed in this
section. For S540 systems, Type 2 electrical hazard tasks are typically performed.
For additional information about diagnostics, troubleshooting, or maintenance of specific Keithley
instruments, refer to the documentation for that instrument for details before attempting to repair it.