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Immersion nickel/gold is a thick layer of nickel-gold alloy with good electrical properties and can protect the PCB for a long time. Unlike the OSP PCB Board, which is only used as a rust-proof barrier layer, it can be useful and achieve good electrical properties during long-term use of the PCB. In addition, immersion gold pcb also has environmental tolerance not available in other surface treatment processes.
Features of Immersion Gold PCB
The immersion gold board is a pcb board produced by the immersion gold process.
Such immersion gold boards are mostly multilayer PCB boards. The immersion gold process is to deposit a stable color on the surface of the printed circuit, good brightness, flat plating, and good solderability Nickel-gold plating, PCB can be used for a long time without oxidation problems.
It is mainly used on boards that have functional requirements for connection and long storage periods, such as the keypad area of a mobile phone, the edge connection area of a router housing, and the electrical contact area of a chip processor's elastic connection. Currently about 10% -20% of PCBs use the immersion nickel / gold process.
The general process is: de-acid cleaning-> micro-etching-> pre-immersion-> activation-> chemical nickel plating-> chemical immersion gold; there are 6 chemical tanks in the process, involving nearly a hundred Chemicals, the process is more complicated.
It is mainly used on boards that have functional requirements for connection and long storage periods, such as the keypad area of a mobile phone, the edge connection area of a router housing, and the electrical contact area of a chip processor's elastic connection. Currently about 10% -20% of PCBs use the immersion nickel / gold process.
PCB board has a variety of surface treatment methods, SPEEDAPCB is good at producing pcb boards with various surface treatment methods.
Parameters of Immersion Gold PCB
PCB SIZE |
42 X 36mm=1PCS |
BOARD TYPE |
Double sided PCB |
Number of Layers |
4 layers |
Surface Mount Components |
YES |
Through Hole Components |
YES |
LAYER STACKUP |
Copper ------- 35um(1 oz)+plate TOP layer |
RO4350B 0.254mm | |
Minimum Trace and Space: |
7.1 mil / 5 mil |
Minimum / Maximum Holes: |
0.4 mm / 5.2 mm |
Number of Different Holes: |
6 |
Number of Drill Holes: |
41 |
Number of Milled Slots: |
0 |
Number of Internal Cutouts: |
3 |
Impedance Control: |
No |
Glass Epoxy of board: |
RO4350B Tg280ºC, er |
Final foil external: |
1.5 oz |
Final foil internal: |
N/A |
Final height of PCB: |
0.3 mm ±0.1mm |
Surface Finish |
Immersion gold |
Solder Mask Apply To: |
TOP, 12micron Minimum |
Solder Mask Color: |
Green, PSR-2000GT600D, Taiyo Supplied. |
Solder Mask Type: |
LPSM |
CONTOUR/CUTTING |
Routing |
Side of Component Legend |
TOP |
Colour of Component Legend |
White, IJR-4000 MW300, Taiyo brand |
Manufacturer Name or Logo: |
Marked on the board in a conductor and leged |
FREE AREA | |
VIA |
Plated through hole(PTH), minimum size 0.4mm. |
FLAMIBILITY RATING |
UL 94-V0 Approval MIN. |
Outline dimension: |
0.0059" |
Board plating: |
0.0029" |
Drill tolerance: |
0.002" |
TEST |
100% Electrical Test |
TYPE OF ARTWORK TO BE SUPPLIED |
Email file, Gerber RS-274-X, PCBDOC etc |
SERVICE AREA |
Worldwide, Globally. |
SPEEDA Technology is a professional printed circuit board company. We provide Double Sided PCB, Multilayer PCB and so on. Want to know more? Please contact us.
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