Come diventare un produttore esperto di assemblaggi PCB in 10 giorni?Pubblicato il 11/02/2020
Padroneggia l'arte della produzione di assemblaggi con questi semplici suggerimenti
Diagramma di flusso:
1. Pcb assembly manufacture-What is the best solution for my electronics?
2.Why the PCB assembly manufacturer?
3. What benefits PCB assembly manufacturer provides?
4.The influence of PCB assembly manufacturer on the costs of the PCB assembly
5.Instructions for the PCB assembly manufacturer
6. What is the maximum possible PCB size for the manufacturing and assembly?
7.pcb assembly manufacturer advantages
8.Consideration for PCB assembly manufacturing company
9.main components of PCB assembly manufacturing
10.Pcb assembly manufacturing utility design
PCB ASSEMBLY manufacture – WHAT IS THE BEST SOLUTION FOR MY ELECTRONICS?
The way you mount your circuit boards can make a big difference in choosing a Pcb assembly manufacturers. And that, in turn, has a major impact on the layout of your circuit boards.
With these two important factors in mind, modest PCB assembly manufacturing should be given far more attention than is normally the case.
Why Pcb assembly manufacturer?
Printed circuit board production – the steps at a glance
A pcb assembly manufacturer occupies an extremely important place in the industry today. There is hardly an industry in which computer-aided machine tools play no role. According to the VDMA, orders received by machine tool manufacturers rose by 16 percent in the second quarter of 2016.
A printed circuit board is usually manufactured by EMS (Electronic Manufacturing Services) service providers. Moreover, a pcb assembly manufacturer provides conductor tracks and then equip it with components. The assembly takes place either by the SMD (surface-mount device) or the THT (through-hole technology) process. In addition, the components attached in this way are soldered by hand or by reflow soldering.
Newer, faster and more efficient – today this motto can often only be achieved through increased automation.
To fulfill these tasks, special hardware is a basic requirement. PCBs are therefore used in almost all electrical devices today. Therefore, electrical components that are soldered or otherwise connected to the circuit board can communicate directly through conductor tracks attached to the board.
What benefits pcb assembly manufacturer provides?
A printed circuit board is a combination of multiple components. It requires a professional pcb assembly manufacturer. Furthermore, to do this you need to go through a coherent pcb assembly manufacturing process.
Working with a printed circuit board benefit enables:
- better handling of the printed circuit boards during electronicsassembly manufacturing and production
- It often also offers cost advantages for assembly.
- Under certain circumstances, the size of the printed circuit board can negatively affect the purchase costs of the bare printed circuit boards.
“With many printed circuit board assembly manufacturing designs, the available space on the printed circuit boards is fully used. And Pcb assembly manufacturer installs SMD components very close to the edges of the pcb board.”
This means that the circuit boards can no longer be picked up by the paste printing or assembly machines. In addition, the necessary component-free machining edges can be created with the help of the button.
Within the circuit board use, the circuit boards can be connected to one another by the scoring or milling technique or by a combination of both.
Why hire PCB assembly manufacturing services?
As I have mentioned above, pcb is a combination of various small devices. These devices do not work separately. But all the components work together. In the complete process, produttori di assemblaggi pcb has a dominant role. Similarly, it would be a very useful method if you hire pcb assembly manufacturing services. Why it is important? Because when you are planning to design a custom pcb board, do not ignore standard printed circuit board assembly.
Since every board design can be different, similarly, it requires a specific technique to assemble components. Perhaps that is the most obvious reason why pcb assembly manufacturer is so popular. In addition, most of the people forget to determine the cost of pcb and other relevant component installation material.
Often, PCBs can only be equipped with the well-thought-out specification of a PCB usage without additional effort and risks.
The influence of PCB assembly manufacturer on the costs of the PCB assembly
The manufacturing costs of printed circuit boards are significantly influenced by panel utilization. Moreover, it depends on the pcb assembly manufacturer. Since there are a variety of panels are in the market, you can select anyone as per assembly manufacturing production requirement.
Efficiency and process costs of assembly manufacturing
As an economically oriented assembly manufacturing company, a pcb assembly manufacturer should also strive to make its processes as efficient as possible. It would be uneconomical. And, in a way, almost impossible to have the base material in stock for every conceivable size of PCB.
The combination and duplication of circuit diagram structures and their mapping onto standard base material sizes in stock.
Therefore, it is an efficient and time-, cost- and resource-saving way. For a custom pcb, an assembly pcb manufacturer requires separate material and measurement. Although, design plays a vital role in it. But still, it is not compulsory for any pcb assembly manufacturing company to manage everything before designing and application.
In order not to experience, I would suggest spending a lot of time with the pcb assembly manufacturer. It will save a lot of money and time in the future. Discuss the design plan with him. Also, share the budge details. It will also help a pcb assembly manufacturing company to overcome future challenges regarding your product.
Instructions for the pcb assembly manufacturer
Create PCB layout flawlessly
A pcb assembly manufacturer absolutely needs the following documents to equip your PCB:
- Component scheme
- Pick & Place file in Gerber format
When it comes to the layout of the circuit board, the first mistakes that can run through the entire project often occur.
– Footprints (land pattern), ie the component landing points of the components to be assembled must correspond to the specifications of the respective manufacturer.
– Footprints from the standard libraries such as B. at Eagle “rcl.lib” are suitable for manual pcb assembly manufacturer, but not for the mechanical production as we do.
– Avoid vias in the soldering areas of the components. Otherwise, the solder paste will flow through the through-hole when it melts and we cannot guarantee a reliable solder joint.
In addition to the footprint, a component also includes the correct paste data.
In addition to the footprint, a pcb assembly manufacturer component also includes the correct paste data.
Your layout must contain at least two, better three, reference marks. In the layout programs, there is often a corresponding library with such a brand.
As a rule, a pcb assembly manufacturer should place it diagonally in the corners of the circuit board.
The assembly plan serves among other things for the visual final inspection. The correct designation and drawing of the components are important.
It should contain the following information:
- Alignment of polarized components
- Alignment of headers, terminal blocks, and sockets
- component names
- Double-sided assembly
- Hiding the conductor tracks or copper levels
What is the maximum possible PCB size for the manufacturing and assembly?
A little tip: You should inquire about the effective size. Often a few millimeters or centimeters have to be planned for machine handling, electroplating frames, assembly frames or simply keeping tools free!
The circuit board size depends on the needs of later operations, such as assembly. The placement machines are also subject to a certain level of efficiency. In addition to the assembly speed or the space required by the machines, things such as conveyor systems or other handling systems also count. Thus, there are certain easy-to-use assembly frames in which the circuit boards can be fixed.
Basically, there is distinction between a multiple-use (same circuit boards in use) and a multi-use (different circuit boards in use).
pcb assembly manufacturer advantages
The pcb assembly manufacturer serves as the basis for the benefit assessment. Depending on this, the designer can decide how the circuit boards should be delivered. This often happens as an isolated, separate circuit board. Another advantage, however, is the delivery benefit; this consists of a certain number of merged individual circuit boards.
Each with the same or different conductor pattern structures. The possibility of using the delivery is favorite to achieve a certain relief, effort and cost savings in the assembly. It is also conceivable for pcb assembly manufacturer to put together a number of circuit boards belonging to a structure, device or assembly. After separation you can separately install them.
Consideration for pcb assembly manufacturing company
A pcb assembly manufacturer can obtain a number of individual circuit boards. If one speaks of a 6-fold delivery benefit, there are 6 circuit boards. We’ll keep that in mind for the next section.
PCB assembly manufacturers should also consider soldering technology in making a pcb board. Here, shading effects caused by poorly arranged components of different heights between PCB A and PCB B must not occur.
If any pcb manufacturing company does not follow the guidelines, results will be a total disappointment. Furthermore, a pcb board manufacturer should also consider the design direction of ics. Here, too, it could lead to undesired shadowing or solder bridge effects.
- A disadvantage of multi-use should not be withheld.
- This could lead to considerable additional work for pcb assembly manufacturer.
- A pcb assembly manufacturer can reduce its production and designing costs by having the latest machinery.
Pcb assembly manufacturing utility design
Much has now been said about the theory of pcb assembly manufacturing. But what does it actually look like? Are there any specifications of the manufacturer or assembler for the design of the panels? As already mentioned, the IPC-2581 contains defined guidelines for pcb assembly manufacturer design. A few details should not be missing here.
For further consideration, it does not matter at first whether it is a production benefit or a delivery benefit.
If you put the individual conductor patterns together for a benefit, you cannot simply put them. Next to each other or one below the other would make the handling of the overall cut difficult or impossible.
Therefore, the pcb assembly manufacturer should facilitate further process. Generally, pcb assembly manufacturing handles every step via a service frame. Even if this reduces the effective usable area of the base material.
The following are the main components of pcb assembly manufacturing:
- The service framework
- the printed circuit boards put together for use
- registration marks of the overall benefit
- the registration marks of the individual circuit boards
- And the predetermined breaking points
Why coordinate with pcb assembly manufacturer?
It is important to coordinate the requirements with the pcb assembly manufacturer. Although the IPC defines relatively clear guidelines. Each manufacturer has its own, possibly slightly different requirements. Therefore, the information provided here is rather to be understood as trend-setting! So, if you have inquired about the maximum panel size from a pcb assembly manufacturing company of your choice, make it sure you are clear about the design of the printed circuit board.
Moreover, you will be able to see the placement of components. How many printed circuit boards should the delivery benefit consist of?
- How many delivery benefits should the production benefits consist of? (if necessary, leave it to the pcb assembly manufacturer or consult with him!)
- What does the service framework look like? Where do catch holes or fiducially have to be placed?
- In what way should the separation of benefits take place later? Milling, scratching or a combination of these two?
- What design specifications (spacing between the printed circuit boards of the panel) does the pcb assembly manufacturing company make?
Separation of the circuit boards
So far, we have differentiated the design of the panels according to the assembled circuit boards in multiple or multi-panels. Another type of distinction can be found in the later separation process.
The approach has already been mentioned above that a pcb assembly manufacturers can remove the panel by scratching or milling. Furthermore, do not forget to store all the information in panel drawing.
- While scratched panels offer the advantage that the overall panel retains a certain degree of rigidity
- A pcb assembly manufacturing company must hold the frame until it gets separated
- This is a simple process. It can be done via milling aisle that holds the connection between the circuit board and the service frame until they are separated.
- Usually, pcb assembly manufacturers drill small holes in holding bars
Without a pcb assembly manufacturer, there would be no computers and no automated manufacturing processes. The companies use modern technologies – from placement machines to powerful soldering furnaces. In addition to manufacturing, there is another area today when it comes to printed circuit boards – rework. Refurbishing defective components are quickly cheaper than completely rebuilding a circuit board, for which individual components may be missing.