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120 W orkstation Products For more pr oduct information, please visit www .3M.com/static T apes 3M ™ EMI Shielding T apes All tapes are furnished on 3 in. (7.6 cm) I.D. cores. Minimum width is 1/4 in. (0.6 cm). Maximum w…

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119
3M
™
EMI Shielding Tapes
3M EMI Shielding Tapes are designed for applications requiring reliable
point-to-point electrical contact, particularly EMI shielding, grounding and
static charge draining. The tapes have a multitude of uses in electronic
design and test laboratories for prototyping, design and troubleshooting.
The 3M
™
Foil Shielding Tape Engineering Kit enables engineers who
need only a few inches of a particular tape for specifying, prototyping,
troubleshooting, testing and repairing to avoid the problems and expense
associated with meeting minimum order quantities. The kit virtually
eliminates the problem of rolls of tape lost between multiple users or
kept loose in desk drawers.
The compact dispenser box also serves as a desktop reference for
the tapes. The box panels provide basic technical information about
each tape, including product number, backing and adhesive type and
thickness, adhesion, resistance and shielding effectiveness.
3M
™
Foil Shielding Tape Engineering Kit
Product No. Description
1120
Smooth aluminum foil, conductive acrylic adhesive,
4.0 mil total, supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 36 (33)
0.875 (2.22) 36 (33)
0.75 (1.9) 36 (33)
0.625 (1.5) 36 (33)
0.50 (1.2) 36 (33)
0.375 (9.5) 36 (33)
0.25 (6.3) 36 (33)
1125
Smooth copper foil, acrylic adhesive, 3.5 mil total,
supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 36 (33)
0.875 (2.22) 36 (33)
0.75 (1.9) 36 (33)
0.625 (1.5) 36 (33)
0.50 (1.2) 36 (33)
0.375 (0.9) 36 (33)
0.25 (0.6) 36 (33)
1126
Smooth copper foil, conductive acrylic adhesive,
3.5 mil total, supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 36 (33)
0.875 (2.22) 36 (33)
0.75 (1.9) 36 (33)
0.625 (1.5) 36 (33)
0.50 (1.2) 36 (33)
0.375 (0.9) 36 (33)
0.25 (0.6) 36 (33)
Engineering Kit for Foil Shielding Tapes
Engineering Kit
Kit includes one roll of each foil tape, 3/4 in. x 4 yds. (1.9 cm x 8.3 m)
Dispenser box is 4 in. x 4 in. x 8.5 in. (10.0 cm x 10.0 cm x 21.3 cm)
Tapes
Water Soluble Tape and EMI Shielding Tape
RoHS
Compliant
2002/95/EC
120
Workstation Products
For more product information, please visit www.3M.com/static
Tapes
3M
™
EMI Shielding Tapes
All tapes are furnished on 3 in. (7.6 cm) I.D. cores.
Minimum width is 1/4 in. (0.6 cm). Maximum width is 23 in. (58 cm).
Product No. Description
1170
Smooth aluminum foil, conductive acrylic
adhesive, 3.2 mil total, supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.875 (1.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.375 (9.5) 18 (16.5)
0.25 (6.3) 18 (16.5)
1181
Smooth copper foil, conductive acrylic
adhesive, 2.6 mil total, supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.875 (1.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.375 (9.5) 18 (16.5)
0.25 (6.3) 18 (16.5)
1182
Smooth copper foil coated on both sides,
conductive acrylic adhesive, 3.5 mil total,
supplied with liner on each side.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.25 (6.3) 18 (16.5)
1183
Smooth tin-plated copper foil, conductive
acrylic adhesive, 2.6 mil total, supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.375 (9.5) 18 (16.5)
0.25 (6.3) 18 (16.5)
1194
Smooth copper foil, nonconductive acrylic
adhesive, 3.0 mil total, supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 36 (33)
0.75 (1.9) 36 (33)
0.50 (1.2) 36 (33)
0.375 (9.5) 36 (33)
0.25 (6.3) 36 (33)
1245
Embossed copper foil, nonconductive acrylic
adhesive, 4.0 mil total, conductivity “through the
adhesive,” supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.25 (6.3) 18 (16.5)
Product No. Description
1267
Embossed aluminum foil, nonconductive
acrylic adhesive, 5.0 mil. total, conductivity
“through the adhesive,” supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.875 (1.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.375 (9.5) 18 (16.5)
0.25 (6.3) 18 (16.5)
1345
Embossed tin-plated copper foil, nonconductive
acrylic adhesive, 4.0 mil. total, conductivity
“through the adhesive,” supplied on liner.
Widths, in. (cm) Length, yd. (m)
1 (2.5) 18 (16.5)
0.75 (1.9) 18 (16.5)
0.625 (1.5) 18 (16.5)
0.50 (1.2) 18 (16.5)
0.375 (9.5) 18 (16.5)
0.25 (6.3) 18 (16.5)
RoHS
Compliant
2002/95/EC
121
Workstation Products
EMI Shielding Tapes, ESD Information
ESD Information
Static Control Measures for Handling Electronic Parts
Human Awareness Levels
• We feel the discharge if it is greater than 3,500 volts.
• We hear the discharge if it is greater than 5,000 volts.
• We see the discharge if it is greater than 8,000 volts.
• By comparison, integrated circuits that are used to make
electronic circuit boards can be damaged by voltages as low
as 100 to 1,000 volts.
What Is Device Sensitivity?
Once a charge is generated, a charge can be induced from one
object onto another. This is called charge transfer. The damage is a
result of energy shifting from one charged object to another object.
Static sensitive devices are subject to damage or degradation from
Electrostatic discharge (ESD). Damage occurs because small traces and
materials cannot withstand the amount of energy surge introduced by
an electrostatic field or discharge. Damage and degradation can also
result from an electrostatic field.
Why should I care about Electrostatic Discharge?
Electrostatic discharge (ESD) costs the electronics industry millions
of dollars annually in damaged and degraded parts. A study in
Semiconductor Reliability News estimated that approximately 60%
of device failures are caused by EOS/ESD.
What Is ESD?
The contact and separation of materials creates a static charge. An
example of a common electrostatic event occurs when a charged
individual discharges to a doorknob.
The contact and separation of feet when walking across a floor creates
a charge on the individual. The discharge to the doorknob is an example
of an electrostatic discharge. The simple act of walking across a floor
can generate 15,000 volts of static electricity.
Where Do You Need Static Protection?
• Incoming inspection and test
• Stores and storage
• Transfer carts
• Kitting
• Manual and automated insertion
• Wave soldering
• Equipment assembly and test
• Packaging and shipping
• Repair stations
Device Sensitivity Threshold Levels
Generally, device sensitivity threshold levels are well
below a person’s ability to detect.
Device Type Threshold Susceptivity (Volts)
MOSFET 10–100
VMOS 30–1800
NMOS 60–100
GaAsFET 60–2000
EPROM 100+
CMOS 200–3000
JFET 140–7000
SAW 150–500
Op-AMP 190–2500
Schottky Diodes 300–2500
Film Resistors 300–3000
Bipolar Resistors 300–7000
ECL 500+
SCR 500–1000
Schottky TTL 500–2500
Typical Electrostatic Voltages
Event Voltages at Relative Humidity
10% 40% 55%
Walking Across Carpet 35,000 15,000 7,500
Walking Across Vinyl Floor 12,000 5,000 3,000
Motions of Individuals Not Grounded 6,000 800 400
Remove Bubble Pack from Package 26,000 20,000 7,000