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Z-Axis Adhesive Film

NPE-BSD0209

Preliminary Technical Data PageMarch 2003

Product Description3M™ Z-Axis Adhesive Film 0209 is a heat-bonded, electrically conductive

adhesive film. It is a non-tacky, heat and pressure cured system consists of an adhesive matrix randomly loaded with conductive particles. These particles allow interconnection of circuit lines through the adhesive thickness (the “Z-axis”), but are spaced far enough apart for the product to be electrically insulating in the plane of the adhesive. 3M Film 0209 electrically connects and mechanically bonds two layer type flexible printed circuits (Flex) – especially copper/polyimide (PI) circuits – to Indium Tin Oxide (ITO) coated glass substrates. Utilizing a new thermosetting adhesive technology, extreme fast bond time as short as 5 seconds can be achieved on certain substrates. Film 0209 is ideal for high performance systems requiring high electrical conductivity and high reliability. Film 0209 offers low electrical interconnection resistance to ITO traces and high stability and reliability over a wide range of demanding environmental conditions.

Construction and

Design Guidelines

Property / Value
Adhesive Type / Thermoset Adhesive
Particle Type / Gold plated nickel particle
Particle Size / 6 micron
Particle Density / 1300 per mm2
Liner Type / Polyester Film with Silicone release
Adhesive Thickness / 25 micron
Liner Thickness / 52 micron
Minimum Gap1 / 100 micron
Minimum Overlap Area2 / 0.12 mm2
Maximum Current3 / 100 mA/mm2
Maximum Voltage3 / 50 V DC20V DC or remove this line?

1. Minimum free space (gap) between adjacent conductors to ensure electrical isolation.

2. Minimum conductor overlap area per conductor to ensure electrical connection in the Z-axis.

3. Maximum continuous loading current and voltages qualified by 3M

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3M™ Z-Axis Adhesive Film

0209

Typical PhysicalNote: The following technical information and data should be considered

Properties andrepresentative or typical only and should not be used for specification purposes.

Performance

Characteristics

Ambient1 Physical Properties

Property 2 / Test Substrates3 / Value / Test Method
Interconnect Resistance / PI Flex to ITO / <5  / IPC – 2.6.24
Insulation Resistance / PI Flex to glass / 1010  / 3M-06525
Peel Strength4 / PI Flex to ITO / 800 g/cm / IPC – 2.4.9.1
Property / Value
Modulus / > 1 X 109 Pa
Coefficient of Thermal Expansion (< 120°C)5
Ionic Content / Chloride 2
Sodium 4
Potassium ND
  1. 23 ± 2°C and 50 ± 5% RH.
  2. Sample bonded at the following conditions :
    Temperature : 170°C
    Time : 5 seconds
    Pressure : 1.5 Mpa
    Bonder: Constant Heat Type

ZAF width: 2.0mm

Thermode width: 2.0mm
Compliant Layer: Shinetsu HC-20A (Silicone rubber), 200micron

  1. Au/Cu (12 micron)/polyimide (25 micron) –200 micron pitch to plain Cr coated glass 15 mm thick
  2. 90 degree peel. Peel performance varies dependent on the substrates. The user is responsible for qualifying peel performance of 3M 0209 with their flex circuitry.
  3. Test 3M-0652 is functionally equivalent to IPC-2.5.10.1 but uses a different test pattern.

Reliability Performance

Test Conditions1 / Condition / Maximum Interconnect Value ()
IPC-2.6.24 / Insulation Resistance ()
3M-80162 / Peel Value (g/cm)
IPC-2.4.9.13
Initial / < 5  /  1010  /  800
100C / 1000 hours / < 5  / >500
-40C / 1000 hours / < 5  / > 500
85C/85%R.H. / 1000 hours / < 5  / > 500
-45C/100C / 1000 cycles / < 5  / > 500
  1. 3M Microflex 200mm pitch(Au/Cu: 12mm, Polyimide: 25mm) to plain Cr coated Glass (0.7mm, 15/□)
  2. Test 3M-0652 is functionally equivalent to IPC-2.5.10.1 but uses different test pattern
  3. 90 degree peel. Peel performance depends upon the type of flex circuit used. The user is responsible for qualifying peel performance of 3M 0209 with their flex circuitry.

Available SizesRolls: 1.2 mm wide x 50 meters long1.5 mm wide x 50 meters long

2.0 mm wide x 50 meters long2.5 mm wide x 50 meters long

(other widths may be custom ordered and are subject to availability)

Application

Techniques

Procedure / Conditions
Tacking Conditions
Temperature* / 7010°C
Pressure / 0.5~1 MPa
Time / 2 - 4 seconds
Bonding Conditions
Temperature* / 170  10°C
Pressure / 1.50.5Mpa
Time / 51 seconds

*Temperature measured in the adhesive. Thermode set points will be higher and will depend upon the

substrate materials and bond equipment.

Bonding of film 0209 requires a three part procedure: heat tacking the film to the

flex circuit (or to the metalized ITO glass etc.), removal of the release liner, and bonding the flex to the second substrate. A thermo-compression (hot bar) bonder is required for use of film 0209, and several commercially available models exist; a list of vendors can be obtained by calling the toll free number on the back of this Technical Data Sheet.

Repair

Bonds made with film 0209 are repairable by heating the bond line to 100°C

(eg. with a hot plate or rework tool) peeling the substrates apart. The bond site then

requires cleaning with a solvent (Acetone recommended), after which the circuit can be rebonded using a fresh piece of film 0209.

Note: Carefully read and follow solvent manufacturer’s precautions and directions

for use.

Storage

Film 0209 should be kept frozen (-5°C/23°F) in the original metalized airtight

shipping pouch. Prior to use, while still inside the shipping pouch, film 0209 should be allowed to warm to room temperature for approximately 30 minutes to prevent condensation on the film and possible adhesive cracking. Freezer stored materials have a shelf life of 6? months. Reels exposed to room temperature for more than 4 weeks accumulated time may exhibit handling problems such as cracking or flaking of the adhesive and separation of the adhesive from the liner. Lengths of film 0209 unwound from the reel may show this type of failure earlier. While in storage, film 0209 should be kept away from direct sources of heat and light. Film 0209 should be protected from exposure to high humidity environments.

GeneralZAF Product Selection Guide

Information

Product

/

Flex Type

/ Connection Type / Pitch
3 layer flex / 2 layer flex / Flex to ITO Glass / Flex to Metalized ITO Glass /  200 micron /  60 micron /  40 micron
NPE-0207 / X / X / X
NPE-0208 / X / X / X / X
NPE-0209 / X / X / X

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Application IdeasFilm 0209 is suitable for bonding of two layer type flexible circuits to metalized ITO glass where good electrical resistance stability is desired. Possible applications include Flex-to-metalized ITO bonding of the flex to LCD, OLED or plasma display attachment.

For Additional To request additional product information or to arrange for sales assistance, call toll free 1-

Information800-362-3550. Address correspondence to 3M Bonding Systems Division, 3M Center, Building 220-7E-01, St. Paul, MN 55144-1000. Our fax number is 651-733-9175. In Canada, phone: 1-800-364-3577. In Puerto Rico, phone: 1-809-750-3000. In Mexico, phone 5-728-2180.

Certification/RecognitionMeets IPC 3408 General Requirements for Anisotropic Conductive Adhesive Films.

TSCA: This product is defined as an article under the Toxic Substances Control Act and therefore, it is exempt from inventory listing requirements.

Important Notice3M MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT

LIMITED TO, ANY IMPLIED WARRANTY OF MECHANTABILITY OR FITNESS

FOR A PARTICULAR PURPOSE. User is responsible for determining whether the 3M product is fit for a particular purpose and suitable for user's method of application. Please remember that many factors can affect the use and performance of a 3M product in a particular application. The materials to be bonded with the product, the surface preparation of those materials, the product selected for use, the conditions in which the product is used, and the time and environmental conditions in which the product is expected to perform are among the many factors that can affect the use and performance of a 3M product. Given the variety of factors that can affect the use and performance of a 3M product, some of which are uniquely within the user's knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the user's method of application.

Limitation of If the 3M product is proved to be defective, THE EXCLUSIVE REMEDY, AT 3M'S

Remedies andOPTION, SHALL BE TO REFUND THE PURCHASE PRICE OF OR TO REPAIR OR

Liability REPLACE THE DEFECTIVE 3M PRODUCT. 3M shall not otherwise be liable for loss or damages, whether direct, indirect, special, incidental, or consequential, regardless of the legal theory asserted, including negligence, warranty or strict liability.

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