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Gold Finger PCB
【Brief】:This is a type of FR-4 PCB for the application of Wireless Speakers.Golder finger Double sided PCB 1.61-1.64mm thick Black Solder Mask and white Screen
with Immersion Gold,
BGA,Half Holes,Impedance control and Blue Peelable Mask.
【Series】:FR4 PCB

Parameters & Data Sheet

ITEM REQUIRED ACTUAL
Laminate Type FR-4  Tg170 FR-4 TG170
Supplier ITEQ ITEQ
Board thickness 1.6+/-10%mm 1.58+/-1.64mm
Outer copper foil >=35 um 43.37
Inner copper foil / /
Warp-twist <= 0.75% 0.21%
legend Type KUANG SHUN IJR-4000 MW300
Color White White
Location CS  CS 
Marking Co.logo As requirement OK
UL.logo  As requirement OK
Date code As requirement OK
Marking form As requirement OK
Location CS  CS 
Min line width (mil) 4.5 4.45
Min line spacing (mil) 4.5 4.51
Min ring width (mil) NA   NA  
Solder Mask Type KSM-S6189BK31 KSM-S6189BK31
Color Black Black
Thickness >=10 um 14 um
Pencil Test 6H OR ABOVE  OK
SOLVENT TEST NO ATTACK OK
TAPE TEST  NO PEEL OFF OK
Surface treament ENIG OK
Special Treament Silk screen   /
Location   /
Forming V-cut OK
Normal Testing Electrical test 100% PCB passed  OK
Visual inspection IPC-A-600H&IPC-6012C OK
Solderability Test  245ºC 5S 1 Cycle OK

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