Introduction to Printed Circuit Board Supplier
Among the parts used in the electronics industry are printed circuit boards (PCB), elements that are getting smaller and smaller, contain more electronic components and, in addition, have to work in more aggressive and harsh environments. In this whole procedure the role of printed circuit board supplier cannot be undermined.
If during the manufacture of these plates a series of materials and chemical products must be used to ensure their operation, once this phase is concluded, the finalfinish of the piece requires the protection of the circuit tracks against the effects of passage of time and environmental aggressions.
In short, printed circuit boards need an anti-corrosion coating to prevent oxidation.In addition, these coatings have to meet a series of requirements that guarantee that the protection is effective; therefore, the product that is applied has to:
- Protect the printed circuit board
- Isolate it from hostile environmental factors
- Increase the resistance and dielectric strength of conductors
Major Applications of Printed Circuit Board Supplier
Motherboards, regardless of their aggressive, military or minimalist appearance, are the mostimportant element of our computers, but do we know everything we need about them? The different lines on our motherboard that look like cables are the printed circuit connections on the board. Printed Circuit Boards (PCBs) are in all electronic devices today.
Before the appearance of PCBs and the extension of their use, electroniccomponents were packed with cables, integrated circuits and resistors that were distributed throughout the chassis. To make these PCBs, printed circuit board supplier follows a process similar to that of the processors, although with a lower level of complexity.
A Complex Manufacturing Process that Reduces the Size of the Circuits of Our Devices
Fiberglass strips are stacked and then treated with a resin so that they stick to each other, becoming a solid block. Then copper is placed on both sides and covered with a photoresist chemical.
After this, a pattern is superimposed with the lines where they want them to go on the plate and it is exposed to ultraviolet light. When this process is finished, the PCB is “cleaned” and the copper remains in the areas where we had placed the pattern. This is how printed circuit board supplier begins the manufacturing process of a PC, but let’s not forget that it is a layered structure and the visible patterns do not have to be the same on the inside – never try to add holes to a PCB yourself.
During the manufacturing process these layers not only receive interconnection patterns, they also have connections to different capacitive components such as resistors or capacitors , to other layers of the PCB itself or to controllers of the different input / output ports that will be required in the electronic device. All these components will be soldered to the board, following a different process from that of the “wired” connections.
Thanks to Its Possibilities We can have Smaller and Smaller Devices
PCBs are not only used to create motherboards, although they are the best example that we have been able to use to see how useful they are. They are also fundamental in electronic devices such as smartphones, in these devices the process has been taken even further and they are “double-sided” PCBs where on each face of the board there are totally different components. This managesto greatly reduce the space used and thus be able to make smaller devices.
The Eight Most Common Mistakes Printed Circuit Board Supplier Need to Avoid
The routing, routing or tracing of the tracks are what cause major imperfections in the production of PCB’s.
It is important for printed circuit board supplier to take into account the most common mistakes that occur in the manufacture of printed circuits if you do not have a good supplier. In this way, the routing, routing or tracing of the tracks are where the greatest imperfections are caused. Here are the highlights:
- Bad distribution of components. An adequate distribution of the components must be oriented to the needs of the product. Many experts explain that 90% of the routing work is the placement and selection of components.
- Incorrect routing planning. Apart from the selection and distribution of the components on the board, it is important to take into account their material and their nature in the distribution so that it generates a good connection and not errors in the circuit.
- Do not route the tracks at 45 degrees. One of the most common mistakes, since in previous dates it was thought that 90 degree angles were better. But the reality is that the 45 angles allow you to take advantage of the channels without losing signal.
- There is no separation between analog and digital part. It is important that the location of the analog part of the digital part is different. The reason for this is to avoid vertical or horizontal couplings.
- Poor placement of copper zones or ground planes to improve performance.
- Poor definition of width for tracks. The cross area which is usually the thickness and thickness of the track should have a sufficient area to conduct sufficient current. If this is not designed correctly it could burn or isolate itself.
- Not using an adequate typology in routing. Not all routing typologies are used to trace or route the tracks that is why we must bear in mind the advantages and disadvantages of the different typologies.
- Not routing the decoupling network optimally. Taking the decoupling network into account is vital as it determines the optimal operation of the circuit, thus eliminating or decoupling the VCC and GND components.
In this way, PCBMay has a team of highly trained professionals to advise you on the entire process during the production and assembly of your project.
What Precautions Printed Circuit Board Supplier should Take When Generating Ground Planes or VCC?
There is a fundamental principle in electronic circuits for printed circuit board supplier: Regardless of whether the card is high or low speed working, normal and parasitic electric currents will be conducted much better towards the power set point through copper surfaces showing the lowest impedance possible.
The capacitance between two parallel power planes, in addition to serving to reduce electromagnetic radiation (EMI), substantially attenuates the noise from the source.
This capacitance decreases considerably if polygons with a “Cross – Hatched” type are used, thereby reducing the benefits provided by using this type of polygons. If copper is there, why remove it and not use it if it brings us benefits?
However, the printed circuit board supplier must take into account the following considerations according to the type of circuit:
- If the design is two-layer, the solid copper planes parallel to each other are extremely useful to attenuate noises in the power supply due to their capacitive impedance and should in principle be spread over the largest possible area of the card.
- If your design is multilayer due to the use of high-speed digital circuits, susceptible to generating EMI-type emissions, the internal ground planes must always be solid and cover the entire circuit area to provide the highest possible noise attenuation due to its low impedance.
Many designers used this type of polygons in the past to facilitate the soldering of the component pads that are connected to these planes, since it makes the process easier by not dissipating heat as quickly as in the case of filled polygons.
Nowadays there is a better way to do this without affecting the impedance of the ground plane and it is to place thermal pads where this type of connection to the plane is needed, since most of the PCB design programs allow to edit the individual characteristics of the pads and the vias.
Mesh pattern planes are rarely used to lower the impedance of an electrical net to values lower than those that would be obtained if the polygon completely filled with copper were used.
If for some reason we still decide to use them, the respective polygons should be generated with a line width and distance between them compatible with the manufacturing capabilities of our printed circuit board supplier.
In any case, whether it is the internal or external layers of a printed circuit these planes should be between 0.5 and 1.2 mm away from the edges of the card to prevent it from making metallic contact with the tool that will move along the Designed cutting line, rotating at 20,000 RPM, which would produce excessive heating of the copper by friction and cause its deterioration by delamination of the FR4 base substrate and detachment of the antisolder layer due to the excessive temperature generated.
Mounting on THT
Printed circuit board supplier has a long history of assembling THT. We are specialized in assembling all kinds of conventional components.
They are committed to quality and for this we prepare an exclusive technical documentation for each product that guarantees the correct execution of the project.
Through hole circuit mounting technology is a method in which components are inserted into the PCB (printed circuit board) through through holes.
Today most circuits integrate both mounting technologies, SMT and THT.
Manufacturing Advantages with THT Mounting Technology
- Great mechanical and clamping performance.
- Good response with high power components.
- Initial automation cost lower than SMD assembly.
- Best mounting option for large components.
- Ideal for components that require greater mounting strength.
How can Printed Circuit Board Supplier Reduce the Cost of PCB Board?
Printed circuits or also known as PCBs or electronic boards are the most important elements in all kinds of electronic devices with which they interact day by day. In their manufacture, they exist in a considerable number of variations, shapes, colors, finishes and layers. It should be noted that between more details or more complex.
Here expert printed circuit board supplier exposes you 3 tips that are important variables in the final price of your pcb board, so you will get a good price for it.
- PCB size
The size of the circuit is the most important variable in calculating the price of a pcb. The larger your electronic card, the more expensive its unit price will be. Here are 3 recommendations:
- Don’t leave blank spaces on your pcb board.
- Strategically use your ability to join your 2 layers with the silver tracks at your discretion.
- I recommend you to change the PTH format to SMT (mounting) of your components; these can reduce 50% of your area.
- T – fixing t racks and pacios
Complexity in manufacturing is another factor to consider. Specifically in the width of the tracks, as well as the spaces between the tracks. It is more complicated to manufacture 3-5mil tracks than to manufacture 10-17 million or larger. We recommend that you keep good prices.
- Number of layers:
The number of layers in the electronic card is the cost of it. To help reduce the cost of the PCB, we recommend using the standard quantity which is 2 layers. If you are using very dense ICs like BG, it is highly recommended to raise the layering level for your design.
- Amount of pieces
And this cost is in PCBMay we can manufacture distributed in the units to be manufactured.
- Special finishes
The finish of your pcb is also a factor that allows you to take into account the final price of your card. There are different types of finishes that can be according to your needs, such as the best mechanical cable, electrolytic nickel, HAL, tin among other finishes. For your circuit to reduce its price it is recommended to use the HAL finish (Hot Air Leveling), this process is cheaper and more common in the manufacture of PCBs.
- External shape. Exterior Court.
Although at PCBMay we can make your circuit round, square or as your design needs. The rectangular format is more common and in the same state. On some occasions, having a special cabinet where a circuit meter is required, shapes and cuts are required for a better final integration of your product.