fastening & assembly solutions and technology - Approved Business

In mobile phones OCAs ensure invisible bonding of individual components.
The extremely thin adhesive tapes need to be free of dust particles and resistant
to major temperature fluctuations, humidity, and UV radiation
www.emka.co.uk
HINGES
GASKETS
LOCKING SYSTEMS
Call: 024 7661 6505
INTELLIGENT CABINET COMPONENTS
FAST OCTOBER 2011
offer excellent lamination and wetting performance to optimise
gap filling and film printed circuit embedding. All the
tapes feature good bond strength over a wide range of critical
substrates used in touch screen construction such as indium
tin oxide – used as a transparent conducting thin film –
and decorative covers.
Tests have proven peel adhesion is good on critical hard
coatings that provide essential abrasion resistance on substrates
such as glass, PC, PET and PMMA. Optical performance
test results show all tapes exhibit > 99% transmittance
and < 0.5% haze with refractive indices of 1.47. All
tapes prove their UV stability in 1000h QUV tests.
To optimise assembly processes for manufacturers the
tapes are produced with two different thicknesses of PETfilm
liners. One side has a 38µm thickness film for easy
release and the other a 50µm film for medium release.
In addition to OCAs, a large number of other transparent
adhesive tape products are used in electronic devices – some
mobile phone models can incorporate in excess of 20 different
tesa tapes. As the trend toward increasingly small,
lightweight multifunctional devices continues components
that have traditionally been fixed with screws or
rivets are now bonded with adhesive because
this method generally saves space and weight as
well as time and money.
tesa UK 01908 211333
41