Material and Process Solutions
For Mobile Phones
1
Proven and reliable for functionality and productivity
Proven and reliable, 3M products are designed to provide superb
functionality and help increase productivity to meet today’s growing
demand for smaller, lighter, and technologically sophisticated mobile
phones. The applications here are only some of the many 3M tapes and
adhesives. These 3M products help designers explore innovative
solutions over traditional methods of attachment to build a lighter,
more durable phone while offering flexibility to meet today’s
manufacturing challenges.
Window/Lens
Securing polycarbonate or acrylic lens
LCD gasket attachment
4
2
UV-coated surfaces.
High Performance 3M™ 300MP
and 420 Adhesive Family
provides excellent
adhesion/cohesion strength
and heat resistance.
Lens protection
5
Water sealing. 3M™ VHB™ Tapes
feature an acrylic-foam adhesive
that provides excellent sealing
properties against water, dust
and conformability to irregular
surfaces. Ideal for water-proof
applications.
Case bonding
6
Foam/gasket attachment.
Double-coated adhesive tape with
special acrylic adhesive provides
high adhesion to most hard-to-bond
surfaces including low surface
energy plastics, such as
polypropylene and polyethylene.
7
Protective/overlaminate/tapes.
Designed for short term protection
against scratches and dust on
smooth plastic surfaces. No
adhesive residue on lens surfaces.
Easy removal even after many
months.
Thin bond line assembly.
3M™ Plastic Bonding Adhesive
provides structural-like bond and
continuous seal.
Display
Brightness enhancement
guide for LCD
LCDM flex to board
electrical connection/flex to
LCD electrical connection
9
8
Reflector tape features
reflectivity of up to 96% of visible
light. Non-metallic difussion
reflective film capable of obtaining
near-pure white light, enabling
more freedom in design.
LCD light shielding
10
Heat bonded 3M Z-Axis Films.
Anisotropically Conductive Films
provide an effective and reliable
interconnect. Adheres reliably to
polyimide/polyester flexible circuits
to PCBs substrates and metallized
ITO glass/ITO glass/silver ink onglass substrates.
™
LCD construction
Black polyester tape coated with
acrylic adhesive provides excellent
chemical resistance, heat resistance,
and dimensional stability.
11
3M Optically Clear Adhesives
provide excellent adhesion to
various plastic materials and glass
substrates with 99% optical clarity
and damping characteristics.
™
Keypad Assembly
Metal dome and membrane switch construction
3M™ Polyester Tapes,
3M™ Membrane Switch
Adhesives, and 3M™
Hi-performance Acrylic
Adhesives family provide
excellent adhesion to
metal and high surface
energy plastics,
die-cuttability, and good
thermal shock resistance.
12
Keypad attachment
Keypad construction
3M™ Silicone
Double Coated
Adhesive Tape
adheres the often
difficult-to-bond
silicone keypad into
the keypad frame.
13
3M Keypad
Reflector Film
provides a brighter,
more uniform
keypad, while
reducing the number
of LEDs and
decreasing power
consumption.
TM
14
Process Solutions
Lens
Personal service, in-depth expertise
Anywhere in the world, you can
rely on 3M for support in
applications engineering that
includes product evaluation
and equipment feasibility
and sourcing.
Liquid crystal
display module
Printed circuit
board assembly
15
16
17
Battery
Front casing
Battery charger
Back casing/battery
18
Protection
Components Assembly
Speaker/vibrator/
microphone
attachment
Speaker/
vibrator/wire
reinforcement
3M™ Adhesive 200MP
Hi-performance
Acrylic family, 3M™
VHB™ Tapes, and
light cure adhesives
provide excellent
adhesion to plastic
materials and good
thermal shock
resistance.
Light cure adhesives
(liquid) provide fast
curing with excellent
adhesive and
temperature shock
resistance.
Polymeric cushion
attachment
Water contact indicator for
battery and phone internals
Before
20
3M™ Bumpon™ Protective
Products provide damping,
excellent shock, and adhesion
properties. Available in colors,
shapes, and sizes for aesthetics.
19
EMI Shielding Attachment
Identification
Attachment of EMI shielding materials
Labels for identification
and information
22
24
23
3M™ XYZ-Axis Electrically
Conductive Adhesive Transfer
Tapes are electrically conductive
in all directions with good
adhesion to metal and plastic
surfaces.
EMI/RFI Shielding. 3M™
Laminating Adhesives are
readily die-cut for use with
common foil laminate shields,
including copper, aluminum
and tinned copper foil.
3M™ Thermal Transfer and
Computer Printable Facestock
with acrylic adhesives offer
permanent adhesion and clean
removability.
After
21
3M™ Water Contact Indicator
Tape changes from white to red
when in contact with water to
indicate exposure.
Security labels
25
3M™ Polyester “VOID”
Tamper-indicating Label is
thermally and computer printable.
Attachment of
Decorative Parts
Tape and Adhesive Applications
for Mobile Phone Battery
Decorative
metal attachment
Securing battery
and battery holder
Color changing
tape for battery warranty
3M™ VHB™ Tapes provide
excellent adhesion to plastic
case and good thermal shock
resistance.
3M™ Water Contact Indicator
Tape changes from white to
red when in contact with water.
Attachment of
battery insulators
Sealing P-Li battery packs
Nameplate/logo attachment
to phone housing
26
27
3M Bonding Film Film
combines hot melt speed and
the precision fit of film to bond
metal and plastic parts.
™
™
3M Adhesive 200MP
Family provides excellent
adhesion to plastic/metal
materials and good thermal
shock resistance.
3M™ Adhesive 200MP Family
provides heat resistance.
3M™ Bonding Films provide
heat and solvent resistance.
™
Battery labels
Thermal Transfer Printable
Facestock with acrylic adhesive
offers permanent adhesion, and
clean removability.
Bonding battery case
Thin bond line assembly.
3M™ Plastic Bonding Adhesive
provides structural-like bond
and continuous seal.
Applications and general properties of 3M™ products for mobile phones
Application
Unique Application Needs
Product Family/Description
For UV-Hard Coated Lenses
300MP and 420 Adhesive Family – Double-coated PET
Tapes
Structural-like strength with thin bond line
Light shielding properties
Water-seal
3M™ Plastic Bonding Adhesive
300MP and 420 Adhesive Family – Black Double-coated
PET Tapes
3M™ VHB™ acrylic foam tapes
Thermal shock resistance and good adhesion
to plastics and gasket materials
Clear and cleanly removable
Case bonding
2. Display Assembly
Product Choices* Thickness (mm/inch) Color
1. WindowLens/Case Assembly
Securing polycarbonate, acrylic lens
9795B, 9690B,
9795, 9690,
9799,9609
2665
9795B
9690
4538
9492MP
0.13 (0.005)
130 (5)
230(9)
NA
0.13 (0.005)
0.13 (0.005)
600 (0.15)
1100 (0.11)
Black
Clear
Clear
White
Black
Black
Black
Black
200MP and 300 Adhesive Family – Double-coated PET
and Tissue Tapes
Protective Tapes and Protective Overlaminates
9448HK
9009
3112B
76570
3K04, 6K04FL
0.15 (0.006)
0.05 (0.002)
0.08 (0.003)
0.10 (0.004)
NA
Black or White
Clear
Clear Blue
Clear
Clear
Structural-like strength with thin bond line
3M™ Plastic Bonding Adhesive
2665
NA
White
Brightness enhancement guide for
LCD reflector tape bonding
High reflectance and thin profile
Ultra thin
3M™ Reflector Tapes
300 Adhesive Family – Double-coated PET Tapes
LCD light shielding
Light shielding properties
LCDM flex to board
electrical connection
Touch panel construction
Anisotropically conductive film for PCB to
flexible circuits
Optically clear with high reliability, extreme
temp shock resistance
Damping and optical clarity
Polyester Tapes for Light Shielding
(Single-coated Tapes)
Heat bonded 3M™ Anisotropic Adhesive Films
4596
9009
9019
8422B
9381
7303/7313
0.13 (0.005)
0.05 (0.002)
0.03 (0.001)
0.06 (0.0025)
0.07 (0.0028)
0.06 (0.0025)
White
Clear
Clear
Black
Black
Translucent
Optically Clear Adhesive Transfer Tapes and Screen
Printable Liquid Adhesive
Optically Clear Adhesive Transfer Tapes and 200MP
Adhesive Family – Double-coated Tapes
8141/8161
8142
8141/8161
9843
9492MP
0.03 (0.001)
0.05 (0.002)
0.025 (0.010)
0.13 (0.005)
0.06 (0.0025)
Clear
Clear
Clear
Clear
Clear
Light Cure Adhesives (liquid), 200MP and 300 Adhesive
Family – Double-coated Tapes and Tissue Tapes
1214
9448HK
9909
6408
9492MP
467MP/468MP
NA
0.15 (0.006)
0.05 (0.002)
0.12 (0.005)
0.06 (0.0025)
0.05 (0.002)
Orange
White or Black
Clear
White
Clear
Clear
LCD gasket attachment
Lens protection
EL backlight to LCD
3. Component Assembly
Speaker/vibrator/microphone
attachment
Excellent adhesion to plastic case materials
and good thermal shock resistance
Speaker/microphone mesh and filter Excellent adhesion to plastic case and foam/
attachment
felt/mesh materials. Good thermal resistance
200MP Adhesive Family – Double-coated PET Tapes
Tissue Tapes and Adhesive Transfer Tapes
Speaker/vibrator/wire reinforcement Fast curing liquid adhesive
Light Cure Adhesive (liquid)
1214/1213
NA
Yellow/Clear
Flex circuit rigidizing
Very low profile
200MP and 100 Adhesive Family –
Adhesive Transfer Tapes
200MP, 300MP and 300LSE Adhesive Family –
Double-coated Tapes, Tissue Tapes and
Adhesive Transfer Tapes
Ultra-thin Double-coated PET Tapes
Repositionability
Repositionable Double-coated Tape
467MP/468MP
9460
9448HK
9495LE
467MP
9009
9019
9425HT
0.05 (0.002)
0.05 (0.1)
0.15 (0.006)
0.17 (0.0065)
0.05 (0.002)
0.05 (0.002)
0.03 (0.001)
0.13 (0.005)
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Metal/poly dome and membrane
switch construction
Excellent adhesion to metal and high
surface energy plastics
3M™ Membrane Switch Adhesives and 200MP
Adhesives Family
7992MPW
7991MPW
0.10 (0.004)
0.05 (0.002)
White
White
Silicone keypad attachment
350 Adhesive Family Double-coated Tapes
9731
0.14 (0.0055)
Clear
Flex to board electrical connection
Differential adhesion for silicone and
plastics material
flexible circuit interconnect
Heat bonded 3M™ Anisotropic Adhesive Films
7303/7313
0.063 (0.0025)
Translucent
Keypad reflector film
Enhances illumination and reduces number of LEDs Keypad Reflector Film
CRF-100M
2.6 (0.10)
Gloss silver
Polymeric cushion attachment
Damping and excellent adhesion properties
Custom
Protective film for lens and casing
Clear and cleanly removable
Warranty voiding tape for battery
and phone internals
Changes color when in contact with water
3M™ Bumpon™ Protective Polymeric Cushion
for Flip Phones
Clear 3M™ Protective Tapes
Ultra clear removable overlaminating film
3M™ Water Contact Indicator Tape
3112B
76991
5557
From 0.9mm
(height)
80 (3)
10 (0,4)
0.20 (0.009)
Clear and
various colors
Clear Blue
Clear
White
Red (indicating)
Label to indicate unauthorized
“VOID” Tamper-indicating
dismantling and tampering of phone
Polyester VOID Tamper Indicating Labels
Anti-skid footing with aesthetic
appeal for battery charger
High coefficient of friction
Clear 3M™ Bumpon™ Protective Products
7866
7380
7389
SJ-5302
Custom
0.08 (0.003)
0.08 (0.003)
0.08 (0.003)
2.2mm (height)
From 0.9 (height)
Gloss White
Matte White
Bright Silver
Clear
Clear
Labels for identification
and information
Thermal transfer printable
High performance thermal transfer printable labelstocks
for durable marking of products and components
7815EH
7816E
7818EH
7875E
20 (0,8)
20 (0,8)
20 (0,8)
20 (0,8)
Matte White
Gloss White
Matte Silver
Gloss Silver
Recyclable
Thermal transfer printable
High performance thermal transfer printable labelstocks
suitable for recycling with ABS, HIPS and PC plastics
8000
20 (0,8)
Matte White
Security labels
Polyester “VOID” tamper-indicating
Tamper evident materials that destruct or “VOID” if
attempts are made to remove them from the substrate
to which they are applied
76970
76971
20 (0,8)
20 (0,8)
Matte White
Matte Silver
Electrically conductive with good adhesion
3M™ XYZ-Axis Electrically Conductive Adhesive
Transfer Tapes
9713
9712
0.08 (0.003)
0.12 (0.005)
Grey
Dark Grey
Thermally conductive tapes, pads, and
liquid adhesives
Thermally conductive Pads, Adhesive Transfer
Tapes and Liquid Epoxies
8810
5507
0.25 (1.010)
2.5
White
Grey
Dielectric/foam/cushion attachment
MORE attachment of
components requiring:
Excellent adhesion to various metals and
high surface energy plastics
Adhesion to low surface energy plastics
and foam/cushion materials
4. Keypad Assembly
5. Protection
6. Identification
7. EMI Shielding Attachment
Attachment of EMI shielding
materials to PCB and phone casing
8. Thermal Management
Dissipation of heat from active ICs
to PCB and phone casing
Continued on back
Note: The technical information and data on this page should be considered representative or typical only and should not be used for specification purposes. *Product choices shown are for general guidance
only and are only a small part of 3M's Tape and Adhesive solutions for mobile phones. Test each product to determine weather it is fit for a particular purpose and suitable for the user's method of application.
Applications and general properties of 3M™ products for mobile phones (cont.)
Application
Unique Application Needs
Product Family/Description
Product Choices* Thickness (mm/inch) Color
9. Attachment of Decorative Parts
Decorative polymeric
cushion material
Nameplate/logo attachment to
phone housing
Various colors and shapes and sizes
3M™ Bumpon™ Protective Products
Custom
9495LE
467MP/468MP
TBF615
From 0.9mm
(height)
0.17 (0.007)
0.05 (0.002)
0.06 to 0.30
Clear and
various colors
Clear
Clear
Yellow
Excellent adhesion to plastic/metal case
and good thermal shock resistance
300LSE and 200MP Adhesive Family – Double
Coated Tapes and Adhesive Transfer Tapes
3M™ Bonding Films
Decorative metal attachment
Fast and precise assembly
3M™ Bonding Films
TBF615
0.06 to 0.30
Yellow
Excellent adhesion to plastic case and
good thermal shock resistance
Changes color when in contact with water
3M™ VHB™ Acrylic Foam Bonding Tapes
Various tapes
3M™ Water Contact Indicator Tape
5557
0.15mm to
3.1mm
0.2 (0.009)
White, Black,
Grey, Clear
White
Red (indicating)
10. Tapes and Adhesives for Battery
Securing battery and battery holder
Color changing tape for battery
warranty
Attachment of battery insulators
Heat resistant
Attachment of battery cells
Thin tapes
200MP Adhesive Family – Double-coated PET Tapes
Adhesive Transfer Tapes
300 Adhesive Family – Double-coated PET Tapes
9009
467MP/468MP
9009
0.05 (0.002)
0.05 (0.002)
0.05 (0.002)
Clear
Clear
Clear
Sealing P-Li battery packs
Heat and solvent resistant
3M™ Bonding Films
615/560
0.06 to 0.30
Yellow
12. Process Solutions
Global support in applications engineering including product evaluation, equipment feasibility and sourcing.
Note: The technical information and data on this page should be considered representative or typical only and should not be used for specification purposes. *Product choices shown are for general guidance
only and are only a small part of 3M's Tape and Adhesive solutions for mobile phones. Test each product to determine weather it is fit for a particular purpose and suitable for the user's method of application.
Contact 3M for the experience of 100 years of solutions for your design and production challenges.
PRODUCT USE: All statements, technical information and recommendations contained in this document are based upon tests or experience
that 3M believes are reliable. However, many factors beyond 3M’s control can affect the use and performance of a 3M product in a particular
application, including the conditions under which the product is used and the time and environmental conditions in which the product is expected
to perform. Since these factors 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.
WARRANTY AND LIMITED REMEDY: Unless stated otherwise in 3M’s product literature, packaging inserts or product packaging for
individual products, 3M warrants that each 3M product meets the applicable specifications at the time 3M ships the product. Individual
products may have additional or different warranties as stated on product literature, package inserts or product packages. 3M MAKES NO
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A
COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. User is responsible for determining whether the 3M product is fit for a particular
purpose and suitable for user’s application. If the 3M product is defective within the warranty period, your exclusive remedy and 3M’s and seller’s
sole obligation will be, at 3M’s option, to repair or replace the product or refund the purchase price.
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3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract,
negligence or strict liability.
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