Fr4 OSP Artificial Satellite Four Layers PCB

Product Details




Finish Board Thickness

0.2 mm-6.00mm(8mil -126mil)Surface Finish

Surface Finish

Gold finger, Immersion Gold, Plating




Surface Treatment

Solder Mask(black, green, white, red, blue, thickness>=12um, Block,


Silkscreen(black, yellow, white)

Peel able-mask(red, blue, thickness>=300um)

Copper Thickness

1/2 oz min; 12oz max

Min Trace Width & Line Spacing

0.075mm /0.075mm (3mil/3mil)

Min Hole Diameter for CNC Drilling


Min Hole Diameter for Punching


Biggest panel size

610mm * 508mm

Hole Position

+/-0.075mm(3mil) CNC Drilling

Conductor Width(W)

+/-0.05mm(2mil) or +/-20% of original

Hole Diameter(H)


Non PTHL:+/-0.05mm(2mil)

Outline Tolerance

+/-0.1mm (4mil) CNC Routing +/-0.1mm(5mil) CNC Routing

Warp & Twist


Insulation Resistance

10Kohm -20Mohm




What are the main materials on PCB board?


PCB boards are a bit like layer cakes or lasagna - alternating layers of different materials that are laminated with heat and adhesive, resulting in a single object.


FR4 substrate


The substrate is usually glass fiber. Historically, the most common symbol of this fiberglass is "FR4." This solid core makes PCB boards rigid and thick. There are also flexible PCB boards built on flexible hot plastic.


Cheaper PCB boards and perforated boards (shown above) will be made of other materials, such as epoxy or phenolic resins, which lack FR4 durability but are much cheaper. When you solder it, you will know that you are using this type of PCB - they have a very bad smell. These types of substrates are also commonly found in low-end consumer electronics. Phenolic resins have a lower thermal decomposition temperature, which causes them to layer, smoke, and burn when the irons stay too long on the plate.




The next layer is thin copper foil, laminated to the plate with heat and adhesive. On a common double-sided PCB, copper is applied to both sides of the substrate. In lower-cost electronic devices, PCB boards may have copper on only one side. When we talk about double-sided or double-layer circuit boards, we're talking about the number of copper layers in the lasagna. This can be one layer or up to 16 or more.


Copper thickness can vary and is measured in oz/square foot by weight. Most PCBS have 1 oz of copper in one square foot, but some PCB boards that handle very high power may use 2 or 3 oz of copper. Each square oz translates into about 35 microns or 1.4 thousandths of an inch thick copper.


Resistance welding


The top layer of copper foil is called the solder mask. This layer makes the PCB appear green (or, SparkFun, red). It covers the copper layer and insulates the copper trace wire from accidental contact with other metals, solders, or conductive positions. This layer helps the user to weld to the correct position and prevents solder jumpers.


In the example below, the green welding mask is applied to most of the PCB board, covering small trace lines but leaving the silver ring and SMD pads exposed so that they can be welded to.


The most common solder mask is green, but almost any color is possible.




Apply the white silkscreen layer to the top of the welding mask layer. silkscreen adds letters, Numbers and symbols to PCB boards to facilitate assembly and instruct humans to better understand the boards. We often use silkscreen labels to indicate the function of each pin or LED.


Silkscreen is most commonly white, but can use any ink color. Black, gray, red, and even yellow color are widely available; However, it is not common to see multiple colors on a single board. 


The above materials are generally composed of PCB circuit boards, many circuit boards are expensive on the process, there is also the choice of materials.

Advantages of one-stop services:

1) we are a professional manufacturer of PCB, with our own production and processing department, providing one-stop services for PCB production, component installation and quality control.


Advantages of professional procurement team:

2) we also have a professional procurement team for components. Procurement is for global customers, so we have a good procurement channel and a large amount of procurement, which will greatly shorten the procurement time and cost of components for you. Even if you have a regular purchasing plan, we can prepare materials for you in advance.


Advantages of professional engineers:

3) our engineers are very professional and have many years of production experience in PCB and fpca. Can solve any PCB, PCBA engineering problems for you.


Our services:

1. Fast response

Whenever you have any problems, you can always reach to us, we will reply you in 2 hours and your RFQ could be answered in 24 hours. We will follow your orders from the time you submit your Gerber file to the minute you receive your PCB.

2. Free file review

All your orders will be receiving a free engineering file review service from our technicians. You will be told within 24 hours if the file is available or not.

3. Certificates

Certified in ISO9001, UL, Rohs, etc

4. On-time shipping

We have been keeping an on-time delivery rate of 99%. XinDa PCB has established strong relationship with most of the renowned express companies in the world to minimize our customers’ cost of transportation. Due to the very large quantities transported on the daily basis, our customers can take advantage of the lowest possible rates to get their orders shipped and delivered.


The culture of enterprise:

Xinda philosophy system includes five elements: mission, vision, values, development philosophy and enterprise spirit. Among them, the mission answers the question "why do we exist?". Vision answers the question of "where are we going?". Values answer the question of "what should we do?". Development philosophy answers "what laws do we follow". The spirit of enterprise answers the question of "what kind of inner attitude and behavior style should we have". They are Xinda's valuable spiritual wealth and the internal driving force for Xinda's development.



1. How can I get a sample to check your quality? 

After price confirmation, you can require for samples to check our quality. 

If you need the samples, we can send you the samples by free( depends on the kind and qty of samples) or you can pay for sample cost, and it can be refundable after order confirmation when your quantity of the order is bigger than our MOQ.


2. How long can I expect to get the sample?

After you pay for the sample charge and we confirm the drawing with each other,  the samples will be ready for 3-5 days. The samples will be sent to you via express and arrive in 3-5 days. You can use your own express account or prepay us if you do not have an account. 


3. What is your terms of delivery?

We are accept EXW, FOB, CIF, etc. You can choose the one which is the most convenient or most cost-effective for you.


Contact below:

Tel: +86-0755-29621535 EXT 822

Mol/whatapp: +86-18038188954





You Might Also Like