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APICAL
World-- Real World Applications
Flexible
Printed Circuitry
Flexible
printed circuits are found in everything from automobiles,
VCR's camcorders, portable phones, and SLR cameras to
sophisticated military and avionics systems. Something
as common as a notebook computer wouldn't be possible
without flexible printed circuit technology that allows
hundreds of tiny components to be electronically connected
in a three dimensional array.
By
far, the specification criteria that a Polyimide film
must meet are the most stringent in the flexible printed
circuits industry. APICAL Polyimide exceeds this criterion
because the product was specifically designed for this
exceptionally demanding application. As a result, all
those who use APICAL Polyimide share the benefits of a
precision product made with leading edge technology. APICAL
Polyimide is certified to IPC Specification IPC-FC-231.
Beginning
with the manufacturing process, the superior properties
of APICAL Polyimide make it the best choice as a substrate
for flexible printed circuitry. APICAL Polyimide is made
in a clean room environment and is 100% laser inspected
for pinhole and inclusion defects.
APICAL's
400F heat resistance allows for easy wave or hand soldering.
Its overall chemical resistance and alkaline etchability
help it to be chemically milled, yet still endure the
rigors of FPC processing. The physical toughness of APICAL
Polyimide allows it to be flexed reliably and repeatedly
for millions of cycles.
In
addition, APICAL Polyimide NP developed especially for
the FPC industry, gives circuit designers the flexibility
to match the polyimide film's coefficient of thermal expansion
(CTE) exactly to the CTE of copper to prevent circuit
curling during temperature cycling.
APICAL
Polyimide produced in our Texas plant delivers properties
no other polyimide film can match - superior web flatness,
more uniform across-the-web properties, more uniform thickness
control, and superior dimensional stability -- which all
come from the most advanced and precise processing equipment
in the world.
 Technical
Data
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