NO

ITEM

UNIT

VALUE

1

RESISTANCE OF THE COPPER FOIL 35uM

ΩCM

MAX:3.5

2

VOLUME RESISTIVITY

AT NORMAL CONDITION:

AFTER RECOVERY THROUGH STEADY HEAT/HUMIDITY TREATMENT:

ΩCM

MIN: 5.0*10¹¹

3

SURFACE RESISTANCE ON ETCHED COPPER FOIL SIDE

AT NORMAL CONDITION:

AFTER RECOVERY THROUGH STEADY HEAT/HUMIDITY TREATMENT:

Ω

MIN: 1.0*10¹¹

MIN: 1.0*10¹⁰

4

SURFACE RESISTANCE ON THE LAMINATE

AT NORMAL CONDITION:

AFTER RECOVERY THROUGH STEADY HEAT/HUMIDITY TREATMENT:

Ω

MIN: 1.0*10¹⁰

MIN: 1.0*10⁸

5

INSULATING RESISTANCE

AT NORMAL CONDITION:

AFTER BOILING IN WATER:

Ω

MIN: 1.0*10¹¹

MIN: 5.0*10⁷

6

(1MHZ)PERMITIVITY

AT NORMAL CONDITION:

AFTER IMMERSDING IN WATER:

MAX: 5.3

MAX: 5.8

7

(1MHZ)DIELECTRIC DISSIPATION FACTOR

AT NORMAL CONDITION:

AFTER IMMERSDING IN WATER:

MAX: 0.045

MAX: 0.065

8

PEEL STRENGTH

AT NORMAL CONDITION

AFTER 5S HEAT STOCK

N/MM

MIN: 1.2

9

BLISTERING AFTER 10S HEAT STOCK

NO BLISTER OR DELAMINATION

10

PUNCHING PROPERTY

5/4/4

COLD PUNCH

11

HEATPROOF AT 130+/-2℃, FOR 60MIN

NO BLISTER OR DELAMINATION

12

FLEXURAL STRENGTH

MPA

MIN: 100

13

TRICHLOROETHYLEN AND ALKALI RESISTANCE

APPERENCE NO OBVIOUS VARIETY

14

FALLING BALL IMPACT

CM

MIN: 4.5

15

WATER ABSORPTION

%

MAX: 1.2

16

FLAMMABILITY            VERTICAL

FV0