3M™ Anisotropic Conductive Film
For Touchscreen Applications
• Electrically conductive film
• Low temperature bonding to
most plastic flex circuits
• Fast cure time with low pressure
• Flex-to-flex or flex-to-board
Flexibility
Enhancing
Design
Electronic devices continue to get smaller, lighter, thinner and faster. They also have dramatically increased functions: watch TV, take a picture,
listen to music, make a phone call, surf the Web or answer e-mails, all on a single device. The serious challenge for product designers is how to
enable the user to access all that functionality with a simple, easy-to-use interface. One solution is the use of touch screens.
3M™ Anisotropic Conductive Films (ACF) enable designers to use new touch-sensitive display materials like ITO-coated PET. These heat-
bondable, electrically conductive adhesive films consist of a thermoset-thermoplastic adhesive matrix randomly loaded with conductive particles
which allow interconnection of circuit lines through the adhesive thickness, but spaced far enough apart to be electrically insulating in the plane of
the adhesive. Application of heat and pressure causes the adhesive to flow and to bring the circuit pads into contact by trapping the
conductive particles.
The low-temperature and low-pressure cure and short bond time of these adhesives make them the ideal choice for the demanding applications
of flex-to-board, flex-to-flex and flex-to-ITO-coated plastic.
3M
™
Anisotropic Conductive Film for Touchscreen Applications
Advanced adhesive technology for today’s plastic screens
Important Notice: Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use.
Warranty; Limited Remedy; Limited Liability: 3M’s product warranty is stated in its Product Literature available upon request. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT
NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above,
your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable
for any indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted.
Please recycle. Printed in USA.
© 3M 2011. All rights reserved.
Issued: 3/11 7809HB
60-5002-0280-3
3
Electronics Markets Materials Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
www.3M.com/electronics
1-800-251-8634
3M is a trademark of 3M Company.
Used under license by 3M subsidiaries and affiliates.
Properties
Flex Type Connection Type
Silver Ink on Polyester Gold/Copper on Polyester Gold/Copper on Polyimide Flex to Glass Flex to Plastic Device Flex to PCB Flex to Flex
ACF 5363 x x x
ACF 7303 x x x x1x2x x
ACF 7371 x x x x x x
ACF 7378 x x x x
ACF 7371-20 x x x x x x
ACF 7376-10 x x x x x x x
ACF 7376-30 x x x x x x x
ACF 7379 x x x x
1 Tested only for silver frit; not suitable for ITO traces.
2 Suitable for silver ink traces only, not suitable for ITPO traces
Product Selection Guide
Application
Bonding
Temperature
(°C)
Bonding
Time
(sec)
Bonding
Pressure
(MPa)
Particle
Diameter
(µ)
Adhesive
Thickness
(µ)
Pitch
Minimum
(µ)
Minimum
Pad Area
(sq mm)
Connection
Resistance
(mOhms)
90° Peel
Adhesion
(g/cm)
Temp/Humidity
Aging
(°C/%rh)
Temp
Cycling
(°C)
ACF 7371 Flex on Plastic/Glass 140-170 10 - 15 1-2 10 25 200 0.2 <100 >700 85/85 -40 to 85
ACF 7378 Flex-on-board 160-180 53-4 10 40 200 0.2 <100 >1000 85/85 -40 to 85
ACF 7371-20 Touch panel 140-170 10 - 15 1-2 20 35 500 0.5 <20 >600 85/85 -40 to 85
ACF 7376-10 Camera module 140-160 7 - 15 1-2 10 40 200 0.1 <20 >900 85/85 -40 to 85
ACF 7376-30 Camera module 140-160 7 - 15 1-2 30 45 500 0.5 <20 >700 85/85 -40 to 85
ACF 7379 Glass 160-190 10 - 20 1-2 10 25 100 0.05 <3000 >700 85/85 -40 to 85
Precautionary Information
Refer to Product Label and Material Safety Data Sheet for Health and Safety Information before using this product. For additional health and safety
information, call 1-800-364-3577 or (651) 737-6501.
