Si e Prodhon PCB një Prodhues me shumë shtresa PCBa?Postuar më 2020-02-20
Këtë javë Historia kryesore në lidhje me Fabrication multilayer PCBa
multilayer pcba në produktet elektronike
2. Procesi i
prodhuesit të multilayer
5. Procesi i shpimit nga prodhuesi multilayer pcba
6.Zbatimi i platingut të modelit nga prodhuesi multilayer pcba
The role of Multilayer pcba manufacturer in electronic products
The main component Prodhuesi multilayer pcba use while manufacturing an electronic device is PCB. It is a green plate with holes on it. It directs the functions of the electronic product. PCB may be single or double-sided. However, a multilayer PCB is a stack of three or more layers of copper with a nonconductive substrate. It is made up of two or more PCB attached together. Multilayer PCB invented in the 1960’s.
A professional Multilayer pcba manufacturer has the latest manufacturing and testing equipment. Therefore he can easily build 24 multilayer pcb with the highest standards.
Application process fo Multilayer pcba manufacturer
Multilayer PCB is widely used in the market. Usually use in computers, electronic equipment, telecommunications scanning machines, medical monitoring devices, and military equipment. Furthermore, there are a range of automotive products on which Multilayer pcba manufacturer is working. These pcb components will provide high end support to automotive industry.
Multilayer pcba manufacturer Features
- It is a high-speed circuit board.
- It is a miniature board thus provide more space for the assembly of other material in the device.
- They contain three conductive layers.
- They are comparatively expensive because of complexity.
- Moreover, they are high in speed and capacity, they are miniature and small in size, they possess low weight.
- A Multilayer pcba manufacturer provides a satisfactory programming rather than other circuit boards.
- They are flexible, reliable and dense as well.
Everything has two faces. Simultaneously Multilayer pcba manufacturer products have some disadvantages too. Along with, high speed, good programs, simple installation and so on there are some drawbacks also such as
- Multilayer PCB is expensive because of more complex layers
- The whole process is the time taken
- Verification and testing need more time.
- The formation required experts
The manufacturing process of Multilayer PCB
Every company has its own processes and manufacturing techniques to make a multilayer PCB. Above all the basic steps are the same.
PCB has many problems like cross-talk, signal breakage, etc. In such a case, the manufacturing design should avoid parallel routs and reduce the length of signal
Following are the points which describe the manufacturing process step by step
Hapi themelor dhe i parë për prodhuesin multilayer pcba është zgjedhja e materialit. Materiali bazë është me madhësi më të madhe, prandaj materiali duhet të pritet në madhësitë e panelit. Materiali bazë përfshin fletë bakri ose fletë metalike dhe material izolues.
- Vepra arti
Pas zgjedhjes së materialit të dëshiruar, është e nevojshme të vizatoni një model të përkohshëm të bordit të qarkut manualisht në letër, i cili përmban të gjitha rreshtimet dhe lidhjet.
- Shtresa e brendshme
Më pas, duke përdorur dritën UV dhe shtypni veprat e artit në fletë ose film. Pastaj hiqni bakrin e padëshiruar duke gdhendur nga korniza. Pra, në thelb, shtresa e bakrit është shtresa e brendshme e bordeve të qarqeve. Kur të bëhet shtresa e brendshme, verifikoni shtresën në fund dhe ekzaminoni defektet nëse ekzistojnë.
Grumbullimi i shtresave së bashku njihet si petëzim. Siguroni presion, rrëshirë dhe temperaturë të dëshiruar dhe petëzoni shtresat së bashku. Ky proces e bën bordin e qarkut të ngurtë dhe të dendur.
5. Procesi i shpimit nga prodhuesi multilayer pcba
Hapi më thelbësor në prodhimin e PCB është shpimi. Prodhuesi multilayer pcba zbaton teknika të ndryshme shpimi. Për shembull shpimi nga lazer ose rregullimi manual i kokës së makinës së shpimit ose shpuesit me shumë koka.
Vrimat e vazhdueshme ndodhin nga makineria e shpimit në bord. Ky hap nuk përfshin plating metalike të vrimave.
- Depozitimi i bakrit
The electrolysis of copper on the board is known as the deposition of copper. The copper layer is deposited on the layer of the board by chemical means. The thickness of the copper layer should be less than 10 micrometers. The copper layer must cover the whole plate and the panel of the board. It is obligatory that the deposition of copper is done with care.
Panel plating by Multilayer pcba manufacturer
Panel plating is coating 5-8 micrometer copper on the top of a thin layer. Because of this, the gaps are covered. The panel plating is done on the holes during plating the holes.
Plated through-holes PTH
The metallic coating on the non-metallic surface of the holes is PTH. It is a thin layer of less than 1 micrometer.
The outer layer is similar to the inner layer except for one thing. Where the copper has to deposit on the outer layer that place should not have dry film. The dry film changes with every step from application to development. Afterward, the unwanted dry film is removed by etching. At the end verify the layer and examine the defects according to the data.
10 Pattern plating application by Multilayer pcba manufacturers
Pattern plating is depositing wet chemical over the circuit board. This method makes the board more complex. A Multilayer pcba manufacturers keeps the thickness of pattern plating is 20-25 micrometres.
Resins such as epoxy glass, Teflon or exotica ceramic are used to cover the conductors. Prodhuesi multilayer pcba melts the resin and use at the corners of the board. Resins are viscose adhesive and use to protect the board.
The electric connection between the holes and the board is VIA. Also the VIAs are used to connect the layers. This method includes aluminium plates.
- Solder mask
Solder mask is the process of layering polymer or epoxy liquid on the hole board. This process prevents the boards from oxidation. This method includes exposure of the board to UV light and then washing the board using brushes.
- Finishing and testing
All the board should be of proper size, shape and thickness. The verification of the Multilayer pcba manufacturers board includes surface finishing, electric examination, and final inspection. Moreover, the inspection of holes is also necessary.
Make sure that there will be no open holes and misleading of wires. Otherwise, there are chances of short circuits. Test the circuit board manually for cosmetic defects. In the end clean the surface of the board from contamination and moisture also.
Multilayer pcba manufacturer provides a number of advantages that is why it’s been using all over the devices. It has a lot of advantages and features. Although there are some defects, new technologies are solving the problems of multilayer PCBs to make it more advanced and perfect. Moreover, the new production of multilayer PCB is exploring different designs and styles for the future.