FH28 Datasheet, PDF (6/11 Pages) Hirose Electric – 0.5 mm Pitch, 2.55 mm above the board, Flexible Printed Circuit & Flexible Flat Cable ZIF Connectors

FH28 Seriesq0.5 mm Pitch, 2.55 mm above the board, Flexible Printed Circuit & Flexible Flat Cable ZIF Connectors
sFH28 Series FPC Construction (Recommended Specifications)
1. Using Single-sided FPC
FPC : Flexible Printed Circuit
Connecting side
Back side
Material Name
Material
Thickness (µm)
Covering film layer.
Polyimide 1 mil thick.
25
Cover adhesive
25
Surface treatment
Copper foil
0.2µm thick gold plated over 1 to 5µm
thick nickel underplating
3
Cu 1oz
35
Base adhesive
25
Base film
Polyimide 1 mil thick
25
Reinforcement material adhesive Thermosetting adhesive
30
Stiffener
Polyimide 3 mil thick
175
Total
293
2. Using Double-sided FPC ^{FPC : Flexible Printed Circuit}
Connecting side
Material Name
Material
Thickness (µm)
Covering layer film
Polyimide 1 mil thick
Cover adhesive
Surface treatment
Through-hole copper
0.2µm thick gold plated over 1 to 5µm
thick nickel underplating
3
Cu
15
Copper foil
Cu
1/2oz
18
Base adhesive
18
Base film
Polyimide 1 mil thick
25
Base adhesive
18
Copper foil
Cu
1/2oz
18
Cover adhesive
25
Covering layer film
Polyimide 1 mil thick
25
Reinforcement material adhesive Thermosetting adhesive
50
Back side
Stiffener
Polyimide 1 mil thick
100
Total
297
* To prevent release of the lock due to FPC bending, use of the FPC with copper foil on the back side is NOT RECOMMENDED.
3. Using FFC
FFC : Flexible Flat Cable
Connecting side
Back side
Material Name
Material
Polyester film
Adhesive
Thermoplastic polyester
Gold plated annealed copper foil
Adhesive
Polyester
Polyester
Adhesive
Polyester
Stiffener
Polyester
Total
Thickness (µm)
12
30
35
30
12
30
188
295
4. Precautions
1. This specification is a recommendation for the construction of the FH28 Series FPC and FFC (t=0.3 ± 0.05).
2. For details about the construction, please contact the FPC/FFC manufacturers.
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