HOME > Products > Electronic material > FPC stiffener > Halogen-free film type
Black colord stiffener (Under development)
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RISHO's proposal
Black colored type for Visual effect,Inspection visibility,Hiding of circuit pattern,Light shielding or Prevention of irregular reflection. |
General properties (0.4mm thickness)
| Test items |
Unit |
Treatment |
ES-3551SF
(FR-4) |
ES-3755SP
(CEM-3) |
| Appearance |
- |
- |
 |
 |
| Halogen-free |
- |
- |
Yes |
Yes |
| Resin dust fall |
% |
cf.footnote |
0.031 |
0.019 |
Bending strength |
Warp |
MPa |
A |
541 |
514 |
| Fill |
471 |
438 |
Flexural modulus |
Warp |
GPa |
A |
37 |
35 |
| Fill |
35 |
33 |
CTE
(0.2mm thickness) |
Warp |
ppm/℃ |
A |
14 |
20
(Estimated) |
| Insulation resistance |
Nomal |
ＭΩ |
C-96/20/65 |
9×108 |
4×108 |
After
treament |
C-96/20/65
+D-2/100 |
5×107 |
2×108 |
| Dielectric constant (1MHz) |
- |
C-96/20/65 |
4.20 |
3.94 |
| Dissipation factor (1MHz) |
- |
C-96/20/65
+D-2/100 |
0.012 |
0.02 |
Chemical resistance
(60min) |
Acetone |
- |
A |
OK |
OK |
| MEK |
| IPA |
| Reflow resistance |
- |
240℃～250℃
15sec |
No delamination |
Solder resistance
(Float) |
sec |
260℃ |
300< |
300< |
| Appearance after heat treatment |
- |
180℃
2hours |
OK |
OK |
| Specific gravity |
- |
A |
2.1 |
2.02 |
| Water absorption |
% |
E-24/50
+D/24/23 |
0.14 |
0.14 |
| UL flammability |
- |
UL |
94V-0 |
94V-0 |
☆The above figures do not show guaranteed value but one of a test result at our laboratory.
Test method：JIS K 6911 (Test piece is natural colored type)
Bending strength and Flexual modulus were measured on fulcrum distance of 16mm
CTE and Solder resistance are measured on JIS C 6481
<Treatment>
A=Accept state/ C=Constant Temperature & Humidity/ D=Dipping/ E=En- heating
Time/Temperature/Humidity
<Resin dust fall>
Resin dust fall(%) is defined as Weight change ratio of punched test pieces(0.4mm×90mm×50mm×12sheets)
Before and After the treatment that they are shaken 500 times in a glass bottle |
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