3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
Product Description
3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810, 8815 and 8820 are designed to provide a preferential
heat-transfer path between heat-generating components and heat sinks or other cooling devices (e.g., fans, heat
spreaders or heat pipes).
Technical Data July 2015
Features and Benefits
• High mechanical strength
• Improved surface wet-out for rough surface/LSE substrates
• Excellent shock performance
• Wider and longer roll is available
• Halogen free*
• Ideal for thin bonding applications
• Good thermal transfer
Product Construction
3M™ Thermally Conductive Adhesive Transfer Tapes
Product Number 8805 8810 8815 8820
Color White
Tape Type Filled Acrylic Polymer
Tape Thickness 0.125 mm (5 mils) 0.25 mm (10 mils) 0.375 mm (15 mils) 0.50 mm (20 mils)
Filler Type Ceramic
Liner Type Dual liner using silicone-treated polyester.
Easy release PET liner is clear in color, tight side PET liner is blue in color
Liner Thickness 37.5-50 µm (1.5~2 mils) thickness for inside or outside wound liner.
* Halogen Free is defined as having maximum 900 ppm bromine, maximum 900 ppm chlorine, and/or maximum 1500 ppm
total bromine and chlorine, per IEC 61249-2-21.
Typical Physical Properties and Performance Characteristics
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
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3M™ Thermally Conductive Adhesive Transfer Tapes
Product Number 8805 8810 8815 8820
Property Value Method
Thermal Impedance (°C cm2/W) 3.2 5.8 7.7 9.7 3M test method
(°C in2/W) (0.5) (0.9) (1.2) (1.5)
Thermal Conductivity (W/m-K) 0.60 ASTM C-177
Specific Gravity 1.07 g/cc
Surface Resistivity (Ω-cm) 1.6 x 1011 1.6 x 1011 1.5 x 1011 **1.5 x 1011 ASTM D-2577
Volume Resistivity (Ω-cm) 5.2 x 1011 3.9 x 1011 3.8 x 1011 **3.8 x 1011 ASTM D-2577
Dielectric Strength (kV/mm) 26 ** ASTM D-149
(V/mil) (688) **
Dielectric Properties (frequency) 3 MHz 100 MHz 1 GHz ** ASTM D-150
Dielectric Constant (8815) 93.5 3.2 3.0 ** ASTM D-150
90 Degree Peel Test
grams/25.4 mm width
(oz/in) 8805 8810 8815 8820
Untreated aluminum substrate
Room Temp Dwell @ 15 min 990 (35) 1300 (46) 1500 (53) 1700 (60)
65°C Dwell @ 15 min 1450 (51) 2040 (72) 2440 (86) 2780 (98)
Room Temp Dwell @ 72 hrs 1500 (53) 2130 (75) 2520 (89) 3060 (108)
65°C Temp Dwell @ 72 hrs 1590 (56) 2500 (88) 4000 (141) 4130 (181)
Static Shear test of holding 3M test method:
1000g @ Room Temp using 1 in2 PASS PASS PASS PASS SS & PET
Hold weight 1 week
Static Shear test of holding 3M test method:
500g @ 70°C using 1 in2
PASS PASS PASS PASS SS & PET
Hold weight 1 week
Heat Aging and Environmental Products pass UL-746C Heat Aging testing* and
Cycling Performance Environmental Cycling testing. Contact your TBD UL-746C
3M technical services representative for details.
3M test method
1 mil PET Backing
* UL-746A file number E213134
** Estimated value based on Tape 8815 test data
*** When ASTM is mentioned, the test was performed in accordance with the ASTM test method
3M™ Thermally Conductive Adhesive Transfer Tapes 8805 • 8810 • 8815 • 8820
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Typical Physical Properties and Performance Characteristics (continued)
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
Overlap Shear at Specific Temperatures Properties: (Test conditions: Test substrates are bare untreated aluminum or
anodized aluminum, 1 in.2 test sample size, shear speed = 0.5 inch/minute. Samples heated to temperature noted below in
5 minutes and then OLS tested. Before testing, samples are dwelled for 3 days at RT to build adhesive bond to substrate).
Overlap Shear Heat Aged Properties: (Test conditions: Test substrates are bare untreated aluminum, OLS speed
is 0.5 in./min., adhesive cleanly removes from substrate surface during OLS test, 1 in.2 test sample size, test at RT
conditions after aging cycle complete, 3M Tape 8810).
250
200
150
100
50
0
Tape 8815 on AA
Tape 8810 on AA
Tape 8805 on AA
Tape 8815Tape 8810
Tape 8805
Overlap Shear (psi)
88XX is cleanly sheared
from bare aluminum surface
88XX is cohesively (split) from
anodized aluminum surface
RT
50°C
70°C
3M™ Thermally Conductive Adhesive Transfer Tapes
250
200
150
100
50
0
Overlap Shear (psi)
6 weeks
5 weeks
4 weeks
3 weeks
2 weeks
1 week
Initial
Time at Temperature Before Testing
150°C
120°C
3M™ Thermally Conductive Adhesive Transfer Tapes
3M™ Thermally Conductive Adhesive Transfer Tapes 8805 • 8810 • 8815 • 8820
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Typical Physical Properties and Performance Characteristics (continued)
Note: The following technical information and data should be considered representative or typical only and should not
be used for specification purposes.
Torque Resistance: (Test conditions: This test indicates the resistance to twisting shear forces, heat sink attachment to
different chip package material types, 1.0 hour room temperature dwell after attachment to the package surface before
torque testing is completed).
70
60
50
40
30
20
10
0
Torque (inch - lbs.)
Tape 8815
Tape 8810Tape 8805
PBGA
PLCC
Steel
Thermal Impedance (C-in2/W) vs. Thickness: (Test Conditions: 3M test method).
5 10 15 20 25
0
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Thickness (mils)
Impedance (C-in2/W)
0.5
0.9
1.5
Slope ≈ 1/k
k = 0.6 W/m-K
3M™ Thermally Conductive Adhesive Transfer Tapes
3M™ Thermally Conductive Adhesive Transfer Tapes
3M™ Thermally Conductive Adhesive Transfer Tapes 8805 • 8810 • 8815 • 8820
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Available Sizes
Width: Maximum width 22 inches.
Length: Multiples of 36 yds. Maximum 108 yds.
Custom Sizes: Contact your local 3M sales representative for information and availability of custom sizes (width and
length) or die cut parts of 3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810, 8815 and 8820.
Application Guidelines
1) Substrate surfaces should be clean and dry prior to tape application. Isopropyl alcohol (isopropanol) applied with a
lint-free wipe or swab should be adequate for removing surface contamination such as dust or finger prints. Do not
use “denatured alcohol” or glass cleaners which often contain oily components. Allow the surface to dry for several
minutes before applying the tape. More aggressive solvents (such as acetone, methyl ethyl ketone (MEK) or toluene)
may be required to remove heavier contamination (grease, machine oils, solder flux, etc.) but should be followed by
a final isopropanol wipe as described above.
Note:- Be sure to read and follow the manufacturers’ precautions and directions when using primers and solvents.
2) Apply the tape to one substrate at a modest angle with the use of a squeegee, rubber roller or finger pressure to
help reduce the potential for air entrapment under the tape during its application. The liner can be removed after
positioning the tape onto the first substrate.
3) Assemble the part by applying compression to the substrates to ensure a good wetting of the substrate surfaces
with the tape. Proper application of pressure (amount of pressure, time applied, temperature applied) will depend
upon design of the parts. Rigid substrates are more difficult to bond without air entrapment as most rigid parts are
not flat. Use of a thicker tape may result in increased wetting of rigid substrates. Flexible substrates can be bonded
to rigid or flexible parts with much less concern about air entrapment because one of the flexible substrates can
conform to the other substrate.
4) Application pressure guideline table for 3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810, 8815
and 8820.
Substrate Application Conditions Time
Minimum: 15 psi at room temperature 2 sec
Rigid to rigid Preferred: 50 psi at room temperature 5 sec
More pressure equals better wetting
Flexible to rigid Minimum: 5 psi at room temperature 1 sec
Preferred: 15 psi at room temperature 5 sec
Flexible to flexible Minimum: 5 psi at room temperature 1 sec
Preferred: 15 psi at room temperature 5 sec
3M™ Thermally Conductive Adhesive Transfer Tapes 8805 • 8810 • 8815 • 8820
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Application Guidelines (continued)
5) Application Tips:
• For rigid to rigid bonding, a twisting motion during assembly of the substrates will improve wetting. This should
be a back and forth twisting motion during the application of compression.
• For flexible to rigid or flexible to flexible bonding, a roll lamination system may be employed to apply the flexible
substrate down to the rigid (or other flexible) substrate. Rubber nip rollers, heated steel rollers, and other
methods can be employed to bond in a continuous manner.
• Heat can be employed to increase wetting percentage and wetting rate of the substrates and to build room
temperature bond strength.
• Primers may be employed to increase adhesion to low surface energy substrates (eg. plastic packages). Contact
your 3M Technical Service Representative for more information about primers.
• For best product performance, it is important to use pressure and time conditions to achieve as much wetting as
possible.
6) Rework Tips:
• Rework requires separation of the two substrates. Separation can be accomplished by any practical means:
prying, torquing or peeling. The tape will be destroyed upon separation and must be replaced. The surfaces
should be re-cleaned according to the recommendations in this data page.
• Heating up the substrates can reduce the adhesion level and make removal easier.
• Part separation can be aided by immersion in warm water. This should eventually reduce the adhesion and
make prying, torquing or peeling apart the substrates easier.
3M™ Thermally Conductive Adhesive Transfer Tapes 8805 • 8810 • 8815 • 8820
Application Ideas
• 3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810, 8815 and 8820 are designed to provide a
preferential heat-transfer path between heat-generating devices and cooling devices (e.g., fans, heat pipes and
heat sinks).
Shelf Life
The shelf life of 3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810, 8815 and 8820 is 24 months from
the date of manufacture when stored in the original packaging materials and stored at 22°C (72°F) and 50% relative
humidity.
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Regulatory
For regulatory information about this product, contact your 3M representative.
Technical Information
The technical information, recommendations and other statements contained in this document are based upon tests
or experience that 3M believes are reliable, but the accuracy or completeness of such information is not guaranteed.
Product Use
Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance
of a 3M product in a particular application. Given the variety of factors that can affect the use and performance of a 3M
product, user is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose
and suitable for user’s method of application.
Limitation of Liability
Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product, whether
direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract,
negligence or strict liability.
Warranty, Limited Remedy, and Disclaimer
Unless an additional warranty is specifically stated on the applicable 3M product packaging or product literature,
3M warrants that each 3M product meets the applicable 3M product specification at the time 3M ships the product.
3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY
IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED
WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M product
does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product
or refund of the purchase price.
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©3M 2015. All rights reserved.
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Electronics Materials Solutions Division
3M Center, Building 224-3N-11
St. Paul, MN 55144-1000
1-800-251-8634 phone
651-778-4244 fax
www.3M.com/electronics
3M™ Thermally Conductive Adhesive Transfer Tapes 8805 • 8810 • 8815 • 8820
