Pcb Board Printing

The line length is as short as possible in order to minimize the lead inductance. In low frequency circuits, multipoint grounding is avoided because the ground of all circuits flows through common grounding impedance or grounding plane.
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Product Details

PCB Knowledge:

The location of each functional circuit unit is arranged according to the circuit flow, so that the layout is convenient for the signal circulation and the signal keeps the same direction.

The core components of each functional unit are centered on it. Components should be uniform. And it compactly arranged on the PCB. It minimizes the connections between components.

The distribution parameters between components should be considered in the circuit operating at high frequency. General circuits should be arranged in parallel as far as possible, which is not only easy to mass product but also easy to weld,and it is beautiful.

The line length is as short as possible in order to minimize the lead inductance. In low frequency circuits, multipoint grounding is avoided because the ground of all circuits flows through common grounding impedance or grounding plane.

In multilayer printed circuit board, grounding layer can be set, and the grounding layer is designed as a mesh. The spacing of the earth grid can not be too large because one of the main functions of the earth wire is to provide the signal return path. If the spacing of the grid is too large the signal loop area will be formed. Large loop area can cause radiation and sensitivity problems.(pcb board printing


Process of pcb manufacturing:


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PCB Capability:

Max layers number:

40 layers

Min line width/gap:

3mil/3mil

Min hole size for mechanical drill:

0.15mm

Min hole size for laser drill:

0.1mm

Min annular ring:

4 mil

Max copper thickness:

12oz

Max size for single and double layers PCBs:

600 x 1200mm

Max size for multi-layers PCBs:

500 x 1200mm

Board thickness for 2 layers:

0.2-8.0mm

Board thickness for multi-layers:

0.4-8.0mm

Min solder mask bridge:

0.08mm

Aspect raion:

15:1

Plugging vias capability:

0.2-0.8mm

Impedance Control Tolerance:

±10%(±5% for PCB Prototypes)

Thickness tolerance for PTH:

+/- 3mil

Thickness tolerance for NPTH:

+/- 2mil

Solder mask color:


White, black, blue, green, yellow, red and so on

Character:

White,yellow,black.

Finished surface:


OSP(Entek), HASL no lead free, HASL Lead Free, ENIG(Immersion Gold), Immersion Tin, Immersion Silver, Hard Gold, Platting Gold, Gold Finger, Enepig.

Month capability:


6000 types/month,

30000 square meters/month

Normal board materials:

SHENGYI,ITEQ,KB.

Special materials:

ROGERS, ARLON,TACONIC, NELCO, ISOLA, HighTG:S1000-2.IT180


Our Factory:

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Certifications:

Our Company is UL,ISO9001,ROHS and GJB9001B certified. 

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Packing and Shipping:

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FAQ:

1. How to Get a quotation?

For PCBs,pls send us the Gerber File.For PCBA,pls send us the Gerber file and BOM(Bill of Materials)

2. What is the MOQ?

No MOQ.1 pcs is ok.

3.What is the lead time?

For PCB orders,the lead time is 2 to 10 days.For PCBA orders,the lead time will be 15 to 30 days.

4.Will the boards be tested before shippment?

Yes,all PCBs will be tested by Flying Probe or E-test.For PCBA,we will have AOI,X-ray,and functional test

Email us to get a quote: admin@brightcircuits.com

 


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