| ITEM |
UNIT |
VALUE |
|
RESISTANCE OF THE COPPER FOIL 35u M |
WCM |
MAX: 3.5 |
|
VOLUME RESISTIVITY AT NORMAL CONDITION
AFTER RECOVERY THROUGH STEADY HEAT/ HUMIDITY TREATMENT |
|
MIN: 5.0*1011 |
|
SURFACE RESISTANCE ON ETECHED COPPER FOIL SIDE AT NORMAL CONDITION: AFTER RECOVERY THROUGH STEADY HEAT/ HUMIDITY TREATMENT: |
Ω |
MIN: 1.0*1011 MIN:1.0*1010 |
|
SURFACE RESISTANCE ON THE LAMINATE AT NORMAL CONDITION: AFTER RECOVERY THROUGH STEADY HEAT/HUMIDITY TREATMENT |
Ω |
MIN: 1.0*1010
MIN: 10*108 |
|
INSULATING RESISTANCE AT NORMAL CONDITION: AFTER BOILING IN WATER |
Ω |
MIN: 1.0*1011
MIN: 5.0*107 |
|
(1MHZ) PERMITIVITY AT NORMAL CONDITION: AFTER IMMERSDING IN WATER |
|
MAX: 5.3
MAX: 5.8 |
|
(1MHZ)DIELECTRIC DISSIPATION FACTOR AT NORMAL CONDITION: AFTER IMMERSDING IN WATER |
|
MAX: 0.045
MAX: 0.065 |
|
PEEL STRENGTH AT NORMAL CONDITION AFTER 5s HEAT STOCK |
N/MM |
MIN: 1.2 |
|
BILSTERING AFTER 10s HEAT STOCK |
|
NO BLISTER OR DELAMINATION |
|
PUNCHING PROPERY |
5/4/4 |
COLD PUNCH |
|
HEATPROOF AT 130+/-2OC, FOR 60MIN |
|
NO BLISTER OR DELAMINATION |
|
FLEXURAL STRENGTH |
MPA |
MIN: 100 |
|
TRICHLOROETHYLEN AND ALKALI RESISTANCE |
|
APPERANCE NO OBVIOUS VARIETY |
|
FALLING BALL IMPACT |
CM |
MIN: 4.5 |
|
WATER ABOSRPTION |
% |
MAX: 1.2 |
|
FLAMMABILITY VERTICAL |
|
FVO |
