Major IoT Application pcb manufacturing china use in PCB Industry

Procurement of components and materials

Pcb manufacturing china have revolutionized how to make a circuit. The traditional one was based on rather elementary components to be connected together through a rather complex system; the required planning was substantial.

With programmable cards, on the other hand, it is now possible to equip electronic systems with a kind of “intelligence”. Thanks to programming that takes place via software. The different components become more complex, while the connection between them becomes easier.

In what way pcb manufacturing is helpful for different industries?

Thanks to the introduction of electronic boards, we are witnessing an evolution / revolution that shifts the spotlight from the complexity of electronic design to programming or the continuous research (and realization) of ad hoc solutions. An opening that opens the way to prototyping and customization.

The electronic board works on the basis of a precise procedure that sees:

1. An initial phase of collecting inputs (with the help of sensors, which we can compare to our five senses)
2. A “logical” phase, in which the “intelligent” system processes the data thanks to the software programming it is equipped with
3. An output phase to which the so-called actuators are connected (which perform the actual resolving actions) such as LEDs, acoustic signals, displays, relays …

The advantages have introduced by the IoT and electronic boards in comparison to traditional systems are obvious. Let’s see them in detail.

Electronic boards and IoT: 5 questions and answers

The Internet of Things is the watchword in today’s fast-moving pcb manufacturing china world. The Internet of Things is a fundamental technology, commonly familiar as a network of physical electronic devices that have connected via the internet.

The IoT applications are visible in various areas and this reflects the true meaning and usefulness. The advantages are undeniable.

Why is access to information easier?

The Internet offers the opportunity to collect such a vast amount of data, in terms of volume, variety and speed of diffusion (Big Data). It is impossible to manage, control and analyze it except through specific methodologies and technologies. Thanks to the web!

In fact, we can easily access data and information that are far from our position, in real time. Thanks to the network of devices, all this is now possible, so a person can access any information comfortably sitting in any part of the globe.

This allows millions of people to manage their work, even if they are not physically present on site.

The same data, which can take a long time to transfer, can now be done faster, thanks to the IoT, reducing actual costs and thus improving market share acquisition.

Why are IoT applications now indispensable for companies and startups?

Automation is the need – in the historical moment we are going through – to manage daily activities without human intervention. The automation of activities in a company contributes to improving the quality of services and reducing the level of human intervention.

Moreover, it increases the level of efficiency and minimizing costs and errors in pcb manufacturing china.

It goes without saying that the features that we have listed in this article pave the way for another major benefit of the IoT. In summary:

• Big Data Management
• Modernization
• Repeatability of actions
• Automation
• Thoughtful choices

When we talk about the production process of an electronic board with this technique, it can ideally be summarized in these 4 phases:

Procurement of components and materials

• dispensing of the solder paste
• placement of components on the PCB
• recast
• Inspection and testing

One of these phases is often underestimated. . .

We are talking about step number 2! That’s right, the dispensing of solder paste on the PCB is a crucial step thinking in particular of the production of prototypes and therefore the realization of a few examples with a high level of uncertainty about the result because the greater the probability of design errors.

On the other hand, designers build prototypes in the first place precisely for the testing and correction phases of any errors and are never completely identical to the final product. Many pcb manufacturing china have a design plan that involves making multiple prototype stages. . .

What does all this have to do with the dispensing of solder paste? why does it impact so much in the prototype construction phase? . . .keep in mind what you have just read, you will understand shortly.

What is the solder paste dispensing phase in pcb manufacturing?

With surface mount technology, before positioning the component on the PCB, in the appropriate position, a thin layer of solder paste must be selectively deposited on the soldering pads.

Normally the process takes place by screen printing, i.e.. It comes by spatulating (typically with automatic machines) the solder pastes through the openings of a metal stencil adhering to the PCB board.

Stancil for solder paste dispensing on PCB

The solder paste has made up of a mixture of metal microspheres having a precise statistical distribution of diameters (the so-called “type” of the paste).

The set of microspheres is kept aggregated in a pasty form thanks to the surface tension of a liquid called flux. Its function is also that of deoxidizing the metal surfaces by its own vaporization during the welding process.

If you use the traditional method you must therefore first make the metallic stancil which means having to bear an average cost of about € 150 but above all wait a time ranging from 3 to 5 working days and which obviously accumulate at the times of the entire production process of your cards.

Today 4 days on prototype pcb boards are an eternity!!

Let’s see some examples of the problems that you can encounter with the traditional pcb manufacturing china method.

Imagine that you have finished your project. Moreover, you have sent the prototypes into production and find out from your supplier. After weeks of waiting that you have made a mistake on the printed circuit board, for example the pads of some wrong QFN components due to an error on a symbol in the software layout!

Which is the most common error in pcb manufacturing china?

An error on the file is mechanically reflected on the screen-printing frame. Generally, this translates into other days of waiting to correct. Moreover, when it is possible, having to redo the stancil for screen printing and then shell out more money.

Another common situation? . . . You have made your first prototypes, make some corrections with a few changes to the PCB. You want to produce others to validate what is correct. Hence, you are forcing to make a new stancil for screen printing.

Conclusion

In addition to this you have no idea how much solder paste has wasted to dispense a minimum quantity on a few cards.

Now do you understand why it might be important to have a different method when it comes to producing pcb manufacturing china prototypes?