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CUSTOMER-RETURNED-ITEMHANDLING PROCEDURE
3–10
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
specific handling procedures for static-sensitive items (continued)
All such items must be shipped with an ESD warning label affixed as shown under the General Handling
Procedures and Requirements (for ESD sensitive devices and assemblies).
It is the responsibility of the area supervisor to ensure that all personnel handling static-sensitive items are
familiar with this procedure and fully aware of the damage or possible degradation of these units in the event
of noncompliance. A periodic inspection must be made using an electrostatic voltmeter to ensure that the
static-free workstations are in proper working order and to ensure that operators are wearing grounding
straps properly (snugly and in contact with bare skin).
packing operations
Static-sensitive items are not to be accepted into the packing area unless they are contained in a
static-protected bag or conductive container.
A static-sensitive item delivered to the packer within an approved container or bag and found to be in order
regarding identification must be packed in the standard shipping carton or other regular packaging material.
Containers are to be labeled in accordance with General Handling Procedures and Requirements.
Any void-fillers must be made of an approved antistatic material.
burn-in operations
Burn-in board loading and unloading of static-sensitive items must be done at a static-free workstation.
Shorting clips/shorted connectors must be installed on the board plug-in tab prior to loading any units into
the board sockets. The clip/connectors must be taken off just prior to plugging the board into the oven
connector. The clip/connector must be installed immediately upon removal of the board from the oven
connector. Installation and removal of the clip/connector must be done by a properly grounded operator.
All automatic or semi-automatic loading and unloading equipment must be properly electrically grounded.
It is the responsibility of the area supervisor to ensure that all personnel handling static-senstive items are
familiar with this procedure and fully aware of the damage or possible degradation of these units in the event
of noncompliance. A periodic inspection must be made using an electrostatic voltmeter to ensure that the
static-free workstations are in proper working order and to ensure that operators are wearing grounding
straps properly (snugly and in contact with bare skin).
customer-returned-item handling procedure
Receipt of ESD sensitive-labeled items is to be done at a static-free workstation and handled in accordance with
applicable sections within this guideline.
quality control provision
sampling
Each manufacturing, stockroom, and testing operation handling ESD sensitive devices is audited a minimum
of once each quarter for compliance with all terms of this specification by the responsible process control or QRA
organization. Ground continuity and the presence of uncontrolled static voltages are considered critical and
must be checked more frequently as specified below.
ground continuity (minimum of once a week)
Ground connections (grounding wrist strap, ground wires on cords, etc.) must be checked for electrical
continuity. The presence of a 1 M
±
10% resistor in the ground connections between both the operator wrist
straps to the work surface and the work surface to ground connector must be verified.