Technical Data
April, 2008
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).
• These tapes are tacky pressure sensitive adhesives loaded with thermally conductive ceramic fillers that do not require a heat
cure cycle to form an excellent bond to many substrates. Only pressure is needed to form an excellent bond and thermal
interface.
• The specialized chemistry of tapes 8805, 8810, 8815 and 8820 renders them modestly soft and able to wet to many surfaces,
allowing them to conform well to non-flat substrates, provide high adhesion, and act as a good thermal interface.
• The specialized acrylic chemistry of tapes 8805, 8810, 8815 and 8820 provides for excellent thermal stability of the base
polymer.
• The thermally conductive tapes are provided on a silicone treated polyester release liner for ease of handling and die cutting.
• The tapes offer excellent adhesive performance with good wetting and flow onto many substrate surfaces. These tapes offer
both good thermal conductivity and good electrical insulation properties.
Product Construction
Product Number
3M™ Thermally Conductive Adhesive Transfer Tapes
8810
8815
8805
Color
White
Tape Type
Tape Thickness
8820
Filled Acrylic Polymer
5 mils (0.125 mm)
10 mils (0.25 mm)
15 mils (0.375 mm)
20 mils (0.50 mm)
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
1.5-2 mil (37.5-50 µm) thickness for inside or outside wound liner.
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3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
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.
Product Number
3M™ Thermally Conductive Adhesive Transfer Tapes
8805
8810
8815
8820
Property
Value
Thermal Impedance (C-in.2/W)
0.50
Method
0.90
1.20
Thermal Conductivity (W/m-K)
1.50
0.60
Specific Gravity
3M test method
ASTM C-177
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-257
Volume Resistivity (Ω-cm)
5.2 x 1011
3.9 x 1011
3.8 x 1011
**3.8 x 1011
ASTM D-2577
**
ASTM D-149
Dielectric Strength (Volts/mil)
Dielectric Properties (frequency)
668 Volts / mil (UL-746A*)
3 MHz
100 MHz
1 GHz
**
ASTM D-150
3.5
3.2
3.0
**
ASTM D-150
8805
8810
8815
8820
Room Temp Dwell @ 15 min
35
46
53
60
65°C Dwell @ 15 min
51
72
86
98
Room Temp Dwell @ 72 hrs
53
75
89
108
65°C Temp Dwell @ 72 hrs
56
88
141
181
Static Shear test of holding
1000g @ Room Temp using 1 in2
PASS
PASS
PASS
PASS
3M test method:
SS & PET
Hold weight 1 week
Static Shear test of holding
500g @ 70°C using 1 in2
PASS
PASS
PASS
PASS
3M test method:
SS & PET
Hold weight 1 week
TBD
UL-746C
Dielectric Constant (8815)
90 Degree Peel Test (oz/in)
Untreated aluminum substrate
Heat Aging and Environmental
Cycling Performance
Products pass UL-746C Heat Aging
testing and Environmental Cycling
testing. See pg. 8 for details.
*UL-746A file number E213134 **Estimated value based on Tape 8815 test data
(2)
3M test method
1 mil PET Backing
3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
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).
3M™ Thermally Conductive Adhesive Transfer Tapes
250
Overlap Shear (psi)
200
88XX is cohesively (split) from
anodized aluminum surface
88XX is cleanly sheared
from bare aluminum surface
150
RT
50°C
70°C
100
50
0
Tape 8805
Tape 8810
Tape 8805 on AA
Tape 8815
Tape 8810 on AA
Tape 8815 on AA
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).
3M™ Thermally Conductive Adhesive Transfer Tapes
250
150°C
120°C
Overlap Shear (psi)
200
150
100
50
0
Initial
1 week
2 weeks
3 weeks
4 weeks
Time at Temperature Before Testing
(3)
5 weeks
6 weeks
3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
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).
3M™ Thermally Conductive Adhesive Transfer Tapes
70
60
PBGA
PLCC
Steel
Torque (inch - lbs.)
50
40
30
20
10
0
Tape 8805
Tape 8815
Tape 8810
Thermal Impedance (C-in2/W) vs. Thickness: (Test Conditions: 3M test method).
3M™ Thermally Conductive Adhesive Transfer Tapes
1.6
1.5
1.4
Impedance (C-in2/W)
1.2
Slope ≈ 1/k
k = 0.6 W/m-K
1
0.9
0.8
0.6
0.5
0.4
0.2
0
0
5
15
10
Thickness (mils)
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20
25
3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
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 lintfree 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
Rigid to rigid
Minimum: 15 psi at room temperature
Preferred: 50 psi at room temperature
More pressure equals better wetting
2 sec
5 sec
Flexible to rigid
Minimum: 5 psi at room temperature
Preferred: 15 psi at room temperature
1 sec
5 sec
Flexible to flexible
Minimum: 5 psi at room temperature
Preferred: 15 psi at room temperature
1 sec
5 sec
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3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
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 recleaned 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.
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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).
General Information
Product selection table for 3M™ Thermally Conductive Materials.
Product
Thickness
(mm)
Bulk Thermal
Conductivity
(W/m-K)
Typical Applications
3M™ Thermally Conductive Tapes
9889FR
1.0
0.5
Applications requiring gap filling and bonding with good thermal transfer;
plasma display, IC packages and PCB bonding to heat sinks, metal cases
and other cooling devices.
3M™ Thermally Conductive Pads
5516/5516S
0.5, 1.0, 1.5, 2.0
2.3
5519/5519S
0.5, 1.0, 1.5, 2.0
4.3
5591S
0.5, 1.0, 1.5, 2.0
1.0
5592/5592S
0.5, 1.0, 1.5, 2.0
1.1
5595/5595S
0.5, 1.0, 1.5, 2.0
1.6
Applications requiring gap filling and superior thermal performance
without bonding. IC package and PCB thermal interfacing with heat sinks
or other cooling devices and metal cases.
3M™ Thermally Conductive Pads (Acrylic)
5598H
1.0, 1.5
2.0
5590H
0.5, 1.0, 1.5
3.0
These pads use an acrylic elastomer for applications that require a nonsilicone thermal pad. Provides IC package and PCB thermal interfacing
with heat sinks or other cooling devices, and metal cases.
3M™ Thermally Conductive Epoxy Adhesives
TC-2707
—
0.7
TC-2810
—
1.0
DP-190 Gray
—
0.4
Applications requiring high adhesive strength, good surface wet-out, gap
filling and good thermal transfer. Provides IC package and PCB thermal
interfacing with heat sinks or other cooling devices.
Only the “S” versions are available in 0.5 mm thicknesses.
“S” designation signifies a polyester film on one side to provide a non-tacky surface.
“H” designation signifies a product with one one-tacky surface without the use of PET film.
Shelf Life
Product shelf life is 2 years from date of manufacture when stored at room temperature conditions (72°F [22°C] and 50% RH)
in the products original packaging.
For Additional Information
To request additional product information or to arrange for sales assistance, call toll free 1-800-251-8634. Address
correspondence to: 3M Electronics Markets Materials Division, Building 21-1W-10, 900 Bush Avenue, St. Paul, MN
55144-1000. Our fax number is 651-778-4244 or 1-877-369-2923. In Canada, phone: 1-800-364-3577. In Puerto Rico,
phone: 1-787-750-3000. In Mexico, phone: 52-70-04-00.
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3M™ Thermally Conductive Adhesive Transfer Tapes
8805 • 8810 • 8815 • 8820
Certification/Recognition
MSDS: 3M has not prepared a MSDS for these products which are not subject to the MSDS requirements of the
Occupational Safety and Health Administration’s Hazard Communication Standard, 29 C.F.R. 1910.1200(b)(6)(v). When
used under reasonable conditions or in accordance with the 3M directions
for use, these products should not present a health and safety hazard. However, use or processing of the product in a manner
not in accordance with the directions for use may affect their performance and present potential health and safety hazards.
TSCA: These products are defined as articles under the Toxic Substances Control Act and therefore, are exempt from
inventory listing requirements.
UL: 3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810 and 8815 have been recognized by Underwriters
Laboratories Inc. per UL-746C and UL-746A.
Per UL-746C testing, the maximum temperature rating for the 8805, 8810 or 8815 is 100°C when tested on glass epoxy or an
anodized aluminum substrate. The products meet the UL-746C test requirement of maintaining at least 50% of their initially
tested Overlap Shear strength after heat aging for 1000 hours at 150°C. (See UL file #MH17478 for details):
Additional testing completed and passed per UL-746C test methods include:
– Effect of Humidity: 7 days @ 95% Relative Humidity (RH) @ 60°C.
– Effect of Environmental Cycling (3 cycles): 1 cycle = 24h immersed in 25°C water / 24h @ 100°C / 96h @ 35°C @
90% RH / 8 h @ -35°C.
Note: 3M™ Thermally Conductive Adhesive Transfer Tape 8820 has not been tested per UL-746C or UL-746A test
procedures.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed
to be reliable, but the accuracy or completeness is not guaranteed. 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.
Any statements related to the product which are not contained in 3M’s current publications, or any contrary statements
contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized
officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture at the time of purchase. 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.
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Electronics Markets Materials Division
3M Electronics
3M Center, Building 21-1W-10, 900 Bush Avenue
St. Paul, MN 55144-1000
1-800-251-8634 phone
651-778-4244 fax
www.3M.com/electronics
3M is a trademark of 3M Company.
Please recycle. Printed in U.S.A.
© 3M 2008. All rights reserved.
78-6900-9998-7
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