Glass
Transition
Temp

Dielectric
Constant
@1MHZ

Dissipation
Factor
@1MHZ

Water
Uptake
(%)

CTE
X-Y Axis

Characteristics

Flexible Composites

DuPont
Pyralux AP
(IPC-4204/11)










DuPont
Pyralux LF
(IPC-4204/1
Class 3)
*Adhesive
Only

220°C












*40°C

3.2












3.6

.002












.002

0.8












0.8

<Tg 40
ppm/°C

>Tg 25
ppm/°C








*<Tg 400
ppm/°C

*>Tg 100
ppm/°C

Adhesiveless Flex
Material Constructed
of Kapton®
Polyimide Film
With Copper
Foil On One Or
Two Sides.
Recommended
For Double
Sided, Multilayer
Flex And
Rigid-Flex
Application.

Adhesive Flex
Material
Using Adhesive
To Bond
Copper Foil
To Kapton®
Polyimide Film.
Application
Is The Same As
Above.

Other
Materials


Getek
(IPC-4101/25)




Rogers 4003


Values Are Supplier-Provided Averages

180°C




>280°C

4.0




3.38

.012




.0021

.12




0.4

13-18




11-16

Low Loss
Applications


High Frequency
Applications.
Used in Hybrid
Constructions.