Page 5 of 23
DWG ID: 181-0101-01
Date: 2003-08-12
CAUTION
Equipment contains electrostatic sensitive components that could be
damaged through handling. Take proper ESD precautions.
4.1.1
Surface Mount Repair
Surface mount products require special techniques and equipment. Improper servicing
can permanently damage the printed circuit board and/or components; any such
RESULTING DAMAGE IS NOT COVERED by the Kantronics warranty.
4.1.2
Precautions For Handling CMOS Devices
CMOS parts require special handling, because their circuits are very susceptible to
damage from electrostatic or high voltage charges. This damage can be latent, with
failures not appearing until weeks or months afterward. Because of this susceptibility to
damage, be aware that the proper handling of CMOS devices is even more critical in low
humidity environments. Observe the following special precautions:
4.1.2.1
Storage/Transport
Place CMOS devices to be stored or transported in conductive material with all exposed
leads shorted together. Do not insert CMOS devices into conventional plastic “snow” or
into plastic trays as are used for other semiconductors. The proper conductive containers
for CMOS devices are typically gray or pink in color.
4.1.2.2
Grounding.
All CMOS devices must be placed on a grounded bench surface. Also, the technician
(working on the equipment/CMOS circuit) must be grounded, usually by wearing a
conductive wrist strap in series with a 100 k resistor to ground.
4.1.2.3
Clothing
Do not wear nylon clothing while handling CMOS circuits.
4.1.2.4
Power Off
Remove power before connecting, removing or soldering a printed circuit board
containing CMOS devices.
4.1.2.5
Power/Voltage Transients