In the PCB electronic assembly world, pcb is widely used and can be considered as the main electronic component as it has the function of integrating all others into the same electrical circuit. It contains the determinations of a circuit according to the way the current is traced; Basically, an electronic circuit is a set of components grouped on a previously designed plate.
The board design is a document called Gerber file it is an open ASCII vector format for printed circuit board design. It is the standard actually used by the pcb industry software to describe the printed circuit board images: copper layers, solder mask, legend, drilling data, etc.
We can compare this format with a photolite in printers, it contains the matrix and design of what the PCB will look like for large scale production and subsequent PCB assembly. It is in this assembly that all other components are positioned and soldered, such as: sockets, processors, capacitors, resistors, varistors, connectors, terminals, gas spark gap, etc.
A bit b of the H history of E lectronic B oards
The first PCBs were produced around 1943, according to discoveries the boards were initially developed for military purposes, because the vast majority of intelligence systems used many of them until then, the military needed them for their communication radios, to improve contact. in every crucial situation.
Before the development of the PCB, the circuits consisted of the components soldered into their own terminals, this method was known as spider, because of its own appearance.
Even before any speculation about the plates, Austrian engineer Paul Eisler was considered the developer of the plates because of some records of his studies; the vast majority of people claim he was the creator of the system, a little earlier, in 1925, there was another record on this subject, that of Charles Ducas.
He believed that if he applied a bit of conductive paint to an insulating substrate, he would get the phenomenon called " Circuit Board. After some time, especially after WWII, they were used for more general tasks such as transistorized systems and tasks that were more focused on regular systems.
How's PCB M ade?
Nowadays, boards are more used in electronic devices, in the construction of integrated circuits, PCBs are very useful, due to their meticulous form of manufacturing, previously used a principle called a material called phenolite., Which consists of an insulation board, the name for which the brand that manufactured the plates was known.
They contain a mixture of phenolic resin with a little bit of shredded paper or sawdust, because after a while the material started to have problems, they were perfected with more resistant and reliable types of materials. First, a plate with fiberglass and epoxy resin was developed, these plates are a good choice because of the ability to use multiple layers, reducing the size of the circuit, there is also the plate that meets with phenolite and fiberglass, and finally we have covered the metalcore, the aluminum based or copper with an insulating material.
In contrast, the way they are manufactured starts with the development of an electrical schematic via software, which can perform a simulation of how the circuit will work and the visualization of the plate in 3D. The software is responsible for generating a document in the form of a drawing, Gerber, that defines the path through which the flow passes, this process called "trails". These traces can be done with only one plane, single plane, on both sides i.e. a double plane or even in internal layers called multilayers, which in turn are called each of these layers a layer.
Types of printed circuit boards E LECTRONIC A mounting M ounting
There are two types of PCB mounting:
SMT (Surface mounting technology)mounting Mounting with SMD (Surface Mounting Devices) components
THT (Through Hole technology) Mounting Mounting with PTH (Pin Through Hole) components
The mounting of PTH boards, where the connections of the components are inserted into holes in the board and welded on the other side, is usually a manual process. The mounting of SMD boards is carried out without the need for holes, the components are machined millimetrically and welded to the surfaces of the board.
SMD needs a more nimble and precise assembly, due to the fact that the procedure is largely performed by machines, as the components are difficult to handle by humans because they are very small. The first step in the process is to apply a solder paste using a printer, that is, a printer using a template, a sheet of metal with precise openings where the paste is to be applied.
The paste is a chemical composition that serves to fix the part being inserted into the plate through the inserting machine, which picks up the part from the roll and places it on top of the paste applied to the plate; this is done by suction by compressed air.
The positions where the components are to be placed are defined in the form of parameters for the machine, via a document that is almost always in TXT format.
What is R emelt in PCB A mounting?
After insertion, the next step is remelting, in which the plate will undergo a very high temperature to melt the solder paste and establish the connection of the component terminals with the solder area of the plate. And to complete this process, the inspection is carried out. AOI (automated optical inspection) is done by means of a programming made with the model plate, to make the comparison with the material produced.
The procedure for mounting PTH PCBs is slightly different, in this mounting, components are manually inserted into the board in cells, stations or production lines with mats. The plates are placed on the pallets and then on the conveyor of the welding machine, where the plate receives a low welding flux and passes over a wave-shaped tin tank, which aims to weld the inserted components.
This tank can be composed of two types of solder, with lead tin or lead free, without lead. Immediately after going through a cooling period, the plates undergo the visual inspection process or even tests.
How H ire PCB E LECTRONIC A mounting S services?
At present, Absolute PCB offers two kinds of contracts to do PCB assembly, it is labor, in this method, customer is responsible for the logistics and supply all necessary components to supply the assembly line. The other method, on the other hand, is called TurnKey, where Absolute PCB is responsible for all logistics, delivery, storage and assembly of the PCB, guaranteeing all components in the PCB assembly line and their monthly replacement.
The Turn Key method is considered to be the most beneficial for both parties, especially if the company responsible for the assembly has an infrastructure that is prepared for the whole process. Together with Absolute PCB you can choose the best option for your business as we are a reference in plate mounting. Come by and get to know our structure.
The assembly of the components is a very important stage for the realization of a pcb, a professional pcb electronic assembly company provides a flexible and fast assembly service capable of responding in a short time to the demand for sample prototyping, pre-series and small series.
How R Equest a F ast PCB E lectronic A fitting?
With a view to delivering ever more innovative services with a high technological content, it is possible to request a fast electronic PCB assembly service consisting of providing a complete prototyping including assembly of electronic boards in a very short time. printed circuits, in 5-6 working days * guaranteed.
The intention is to have a single interlocutor for the customer who takes care of the total management of rapid sampling to avoid continuous contacts (with wasted time and perhaps problems with understanding or interpretation) between customer - board manufacturer - assembler.
Therefore, PCB direct Lab takes care of the execution of all the fast ** sampling of the electronic card from the initial CAD files (usually from 2 cards to a maximum of 15-20 printed circuits), starting with the sizing and execution of the quadrotto, the management of the files for the implementation of the foil, the programming and the setting up of the Smt lines with relative mounting and finally the completion of the Pth part (manual mounting if necessary or if necessary).
Everything available from the warehouse is used for the purchase of components. For the slightly more specific parts, we rely on the fast delivery service. Finally, the "less manageable" items (components that are difficult to find for various reasons such as size, design, cost or specificity, etc.) will be supplied by the customer.
Always L ALSO ING 100% Q uality in PCB E lectronic A mounting
Because the quality of your products is important, a professional pcb electronics assembly company develops quality control processes that guarantee you peace of mind. They must undertake to offer you products that comply with very strict measures and are regularly monitored. This guarantees you 100% respected quality. We take seriously the importance of providing our customers with functional products that meet the standards specified by the industry and demanded by customers.
Major assembly services
SMT - Automated Assembly
THT - Through hole technology (lead-free Wave solder)
Mix of SMT and THT
Wiring harness
Ready-to-use solution with tests and housing.
A professional pcb assembly company understands that the job of assembling electronic boards currently requires quality work with immediate results, that's why we provide fast response time on all requested quotes. The PCB electronic assembly team and test engineers can meet your mounting needs in just 7 days, thanks to our hard-working competence and customer service philosophy.
They strive to provide you with the best service by assembling the highest quality PCB products that meet customer requirements at all times. We provide innovative manufacturing solutions while interacting with our customers, enabling us to continuously improve throughout the product life.
Verification of C ard M ounting, I nspectie and T esting
Automated optical inspection (AOI) eliminates subjectivity and the variability associated with manual inspection. In addition to AOI, technicians in electronic circuit board assembly are highly qualified to detect the smallest imperfections. Our technicians are trained to perform in-circuit tests and provide the highest quality plate testing.
The electronics industry is getting more complex than ever. As NPI increases, so does product variation and gear shifting. We meet the industry's needs for increased productivity and utilization and strive to provide a complete SMT manufacturing solution that overcomes today's complex electronic component manufacturing.
Take productivity to new heights
Absolute PCB smart factory board mount products provide manufacturers with greater flexibility, full schedule visibility, thorough component tracking , efficient switching, auto-completion and intelligent component storage solutions. To
We help you increase utilization multiple times without increasing staff numbers by thoroughly understanding production issues and proposing solutions that integrate different products to solve them.
Quality control by data
Today's factories are full of data, producing more and more data every moment. Being able to collect, correlate and analyze this data wisely is the greatest asset that can help improve quality control.
Close the productivity gap
Even when operators and machines are at full capacity, there are benefits that can be generated. By strengthening the interface and realizing smart interaction, it is possible to create even more value with existing resources.
Flexibility throughout the factory
Flexibility is not just about the right production of equipment, but also about helping to shorten cycles and develop the latest applications. It creates a new cycle in which suppliers, customers and partners work together to innovate.
