Technical Data
July 2015
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).
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
Product Number
Color
Tape Type
Tape Thickness
Filler Type
Liner Type
Liner Thickness
0.125 mm (5 mils)
8805
3M™ Thermally Conductive Adhesive Transfer Tapes
8810
8815
White
Filled Acrylic Polymer
0.25 mm (10 mils)
0.375 mm (15 mils)
0.50 mm (20 mils)
8820
Ceramic
Dual liner using silicone-treated polyester.
Easy release PET liner is clear in color, tight side PET liner is blue in color
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.
3M
™
Thermally Conductive Adhesive Transfer Tapes 8805
•
8810
•
8815
•
8820
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.
Product Number
Property
Thermal Impedance (°C cm
2
/W)
(°C in
2
/W)
Thermal Conductivity (W/m-K)
Specific Gravity
Surface Resistivity (Ω-cm)
Volume Resistivity (Ω-cm)
Dielectric Strength (kV/mm)
(V/mil)
Dielectric Properties (frequency)
Dielectric Constant (8815)
90 Degree Peel Test
grams/25.4 mm width
(oz/in)
Untreated aluminum substrate
Room Temp Dwell @ 15 min
65°C Dwell @ 15 min
Room Temp Dwell @ 72 hrs
65°C Temp Dwell @ 72 hrs
Static Shear test of holding
1000g @ Room Temp using 1 in
2
Static Shear test of holding
500g @ 70°C using 1 in
2
Heat Aging and Environmental
Cycling Performance
3 MHz
93.5
1.6 x 10
11
5.2 x 10
11
3.2
(0.5)
5.8
(0.9)
0.60
1.07 g/cc
1.6 x 10
11
3.9 x 10
11
26
(688)
100 MHz
3.2
1 GHz
3.0
1.5 x 10
11
3.8 x 10
11
**1.5
x 10
11
**3.8
x 10
11
**
**
**
**
ASTM D-2577
ASTM D-2577
ASTM D-149
ASTM D-150
ASTM D-150
3M™ Thermally Conductive Adhesive Transfer Tapes
8805
8810
8815
8820
Value
7.7
(1.2)
9.7
(1.5)
Method
3M test method
ASTM C-177
8805
990 (35)
1450 (51)
1500 (53)
1590 (56)
PASS
8810
1300 (46)
2040 (72)
2130 (75)
2500 (88)
PASS
8815
1500 (53)
2440 (86)
2520 (89)
4000 (141)
PASS
8820
1700 (60)
2780 (98)
3060 (108)
4130 (181)
PASS
3M test method:
SS & PET
Hold weight 1 week
3M test method:
SS & PET
Hold weight 1 week
UL-746C
3M test method
1 mil PET Backing
PASS
PASS
PASS
PASS
Products pass UL-746C Heat Aging testing* and
Environmental Cycling testing. Contact your
3M technical services representative for details.
TBD
*
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
(2)
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
200
Overlap Shear (psi)
88XX is cleanly sheared
from bare aluminum surface
150
88XX is cohesively (split) from
anodized aluminum surface
RT
50°C
70°C
100
50
0
Tape 8805
Tape 8810
Tape 8815
Tape 8805 on AA
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
200
Overlap Shear (psi)
150
100
50
0
Initial
1 week
2 weeks
3 weeks
4 weeks
5 weeks
6 weeks
Time at Temperature Before Testing
(3)
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
50
Torque (inch - lbs.)
40
30
20
10
0
Tape 8805
Tape 8810
Tape 8815
Thermal Impedance (C-in
2
/W) vs. Thickness:
(Test Conditions: 3M test method).
3M™ Thermally Conductive Adhesive Transfer Tapes
1.6
1.5
1.4
1.2
Impedance (C-in
2
/W)
1
0.9
0.8
0.6
0.5
0.4
0.2
0
Slope ≈ 1/k
k = 0.6 W/m-K
0
5
10
15
20
25
Thickness (mils)
(4)
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
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
Rigid to rigid
Application Conditions
Minimum: 15 psi at room temperature
Preferred: 50 psi at room temperature
More pressure equals better wetting
Minimum: 5 psi at room temperature
Preferred: 15 psi at room temperature
Minimum: 5 psi at room temperature
Preferred: 15 psi at room temperature
Time
2 sec
5 sec
1 sec
5 sec
1 sec
5 sec
Flexible to rigid
Flexible to flexible
(5)
