Customized Multilayer PCB Fabrication FR - 4 4 Layers For Bluetooth Earphone

Customized Circuit Board PCB for Bluetooth Earphone

The 1 mm board thickness 4 layers PCB Board is applied to bluetooth earphone. While the surface treatment of the PCB Board is ENIG with blue solder mask. Also, the line width and spcaing of this PCB Circuit Board are both 0.1 mm, and the minimum aperture is 0.25 mm.

Technical Data

Item	Details
Max layer count	20 L
Max board thickness	6.0 mm
Max aspect ratio	10 : 1
Max copper thickness	6 OZ
Max dimension	600 * 700mm
Min thickness of 4 layers PCB	0.4 mm
Min hole / pad	0.15 / 0.35mm
Hole location accuracy	+ / - 0.05mm
PTH hole tolerance	+ / - 0.05mm
Min line width and line space	0.065 / 0.065mm
Surface treatment	HASL / HASL lead free, OSP Immersion gold/silver/tin, gold plating (hard gold and soft gold), silver plating, tin plating, platinum plating, carbon ink, ENEPIG (electroless nickel - electroless palladium - immersion gold)

How to get quick quotation?

What kinds of quality Raw Materials will be used?

Board Brand	ITEQ, SY, Isola. Rogers, Arlon, Nelco, Taconic, Hitachi, KB,etc
Potion	Rohm & Haas, Atotech, Umicore
Printing Ink	Taiyo, Rongda
Dry Film	Asahi, Dupont, Etertec

Now send us your inquiry, and you will be replied within 8 hours!

How to improve the use ratio of PCB Board

1. Enlarge the PCB panel size, the larger panel, the less margin wasted;
2. Increase the pieces of PCB Board in each Sheet, which could also decrease the margin waste;
3. If two types of PCB such as A(big) and B(small), they could not reach a good use ratio when arrayed separately, then you could consider whether is suitable to array A and B in one sheet;
4. It is great to use professional software to arrange the PCB Board array.

Established in 1999, we own 3 modern factories in China.

Guangdong province - Shenzhen PCB Factory and Dongguan PCB Factory.

The total production capacity is 290,000 sqm/month.

Our main product is high precision multilayer circuit board. 

Also we are experienced in PCBA.

Advanced equipment and professional technical support provide quality product.

Certifications obtained include :

We sincerely pursue win-win business with customer all the time!