9703 (1/2") 3M, 9703 (1/2") Datasheet - Page 3

• Manufacturer Part Number: 9703 (1/2")
• Description: TAPE CONDUCTIVE ADHESIVE 1/2"
• Manufacturer: 3M
• Series: 9703r

Specifications of 9703 (1/2")

• Tape Type: Conductive Adhesive
• Adhesive: Pressure Sensitive Adhesive (PSA)
• Backing, Carrier: Polycoated Kraft Liner
• Thickness: 0.0020" (2.0 mils, 0.051mm)
• Width: 0.50" (12.70mm) 1/2"
• Length: 108' (32.9m) 36 yds
• Color: Clear
• Usage: Electrical Bonding
• Temperature Range: 60 ~ 158°F (15 ~ 70°C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Thickness - Adhesive: -
• Thickness - Backing, Carrier, Liner: -
• Other names: 3M970312; 70-0062-4287-2; 70006242872; 9703 1/2"

3M
9703
Application
Techniques
™
Electrically Conductive Adhesive Transfer Tape
Bonding
• To obtain maximum adhesion, the bonding surfaces must be clean and dry.
• Pressure must be applied to the bond line after assembly to wet the substrates with 3M™
• Tape 9703 should be applied between 60°F - 158°F (15°C - 70°C). Tape application below
• Adhesion builds with time, up to 24 hours may be required to reach final adhesion values.
Mechanical Clamping
To assure electrical resistance stability of tape 9703 in any flexible circuit interconnection
application, a mechanical clamp or other compressive force (i.e. foam strip held in
compression over bond area.) should be considered in the design of the application.
Any stress inherent in the assembly design (i.e. tensile, shear, cleavage) or temperature
excursions (encountered through normal product use) applied to the bond area could result
in an electrical open in the bonded circuit over time when no clamp or mechanism for
maintaining a constant compressive forces is used. A well designed mechanical clamp will
reduce the environmental stress on the bond line and improve the electrical reliability of
the bond. In addition, the temperature operating range for the adhesive can be improved
with a properly designed mechanical clamping system to ensure the conducting particles
in the tape 9703 maintain electrical contact. Several types of mechanical clamps have been
used successfully including foam strips attached to lids or cases and screw-attached plastic
clamps. Contact your 3M Technical Service Engineer for further information about
mechanical clamping.
Temperature Performance
The electrical performance of tape 9703 is more sensitive to temperature than the peel
performance. Tape 9703 is not recommended for high or low temperature excursions where
the electrical performance might be compromised, even if holding power is not affected.
The user is responsible for the temperature performance qualification of tape 9703 in their
design. Contact your 3M Technical Service Engineer for further information about the
temperature performance of tape 9703.
Rework
Mechanically separate the parts using torque for rigid parts and peel for flexible ones.
Remove the adhesive by rubbing it off with a Scotch-Brite
apply new adhesive. The force needed to separate the parts and/or remove the adhesive can
be reduced by softening the adhesive by heating 158°F - 212°F (70°C - 100°C) or using
solvents.*
*Note: When using solvents, be sure to follow the manufacturer’s precautions and
Electrically Conductive Adhesive Transfer Tape 9703 and to engage the conductive
particles with the substrates to make electrical connection. Mechanical pressure (roller,
metal bar) or finger pressure at 15 psi (0.10 Mpa) or greater is suggested. Heat may be
applied simultaneously to improve wetting and final bond strength.
50°F (10°C) is not recommended because the adhesive will be too firm to wet the surface
of the substrate, resulting in low adhesion.
directions for use when handling such materials.
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TM
Pad, clean up the site and