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"The test is finally completed."

Rossi looked at the circuit board on his hand, and then relieved.

Printing circuit board is a provider of electronic component electrical connection. Its development has a history of more than 100 years; its design is mainly layout design: the main advantage of using circuit boards is to greatly reduce the errors of wiring and assembly.

The level of automation and production labor is half.

The common green board in electronic machines is the printing circuit board, and the four -square -meter black Sè (or silver sè) chip above is an integrated circuit.

Usually PCB's Yan Sè is green sè or brown sè, which is the face sè of Soldermask. It is the protective layer of insulation that can protect the steel line and prevent parts from being welded to incorrect places.

There will also be printed on the welding layer to printed the printing surface (Silkscreen). Usually, text and symbols are printed on it (mostly white sè) to indicate the location of each part on the board. Silk mesh printing surface.

It is also called an icon surface (legend), and it will install integrated circuits, electrocarmiography, diode, passive components (such as: resistance, capacitors, connectors, etc.) and various other electronic parts.

. With the connection of the wire, the electronic signal connection can be formed and the functional function should be.

Neither printed circuit board and integrated circuit are so easy to do.

Catherine that year took more than ten years. Of course, she also did something else to do one by one. She finally made the earliest Apple TV.

But in a strict sense, the TV that uses the crystal tube to be used to say it is an integrated circuit TV ... it is a little unreliable. However, after the official put into production, although the original process is used, it is also the first first.

The integrated circuit of the behalf.

Of course, compared to integrated circuits, making print circuit boards is much simpler.

If the integrated circuit is represented by the human brain and body organs, then the printing circuit board is the skeleton and foundation of the body.

Although the skeleton is simple, the principle is complicated.

Whether the length of the wiring is equal, whether the signal may be disturbed, whether there are design defects, etc., all need to be considered.

The printed circuit board that has just completed the test is the company's newly designed print circuit board.

But this printing circuit board is not ordinary.

Because this printing circuit board is made of supercomputer Galaxy.

The PCB version, which is a printing circuit board, is an important electronic component and the support body of electronic components.

Since the printing circuit board is not a general terminal product, it is slightly confused in the definition of the name. For example, the motherboard used by a personal computer is called the motherboard, but it cannot be directly called the circuit board.

It is not the same, so when evaluating the industry, the two are related to the same.

Another example: Because some integrated circuit parts are loaded on the circuit board, some people call it an LC board, but in essence, he is not the same as the printing circuit board.

As the integrated circuit becomes more and more complicated, the design of the circuit board itself will become more and more complicated. At this time, how to consider using the least materials, the most stable circuit design, etc.

The more the technical staff is tested.

There are often more than a dozen or even dozens of pins on an integrated chip, and then these pins need to be connected to resistors, capacitors, power supplies, etc. It is hard to imagine the huge amount of engineering required to solve these problems.

.

And once a design problem occurs and there are circuit defects on the circuit board, additional lines need to be used for soldering - this is the flying line - this situation is very serious and problematic for an electronic product.

fatal.

But that is no longer the case.

This situation has changed after the emergence of the current galactic supercomputer.

A software specifically designed to design PCB circuit boards has been developed. This software can automatically generate printed circuits. Because such circuits are automatically generated by computers, their circuits will not be affected by habitual thinking like the human brain.

Instead, it will change according to the external environment.

As long as the functions of each pin of the electronic component are set, the software will perform an optimized circuit design based on the device's software.

Of course, this function is not actually perfect, but it can still be used to assist in the design of optimized circuit routing.

The circuit board in Rossi's hands was the first designed finished product.

This is a single board motherboard.

——This will be a revolutionary motherboard.

Today's computer motherboards are all double-layered.

Because of the reasons involved, in order to accommodate enough electronic components, the motherboard is made very large.

But in this case, it seemed inappropriate to put it in the chassis, so the design became a double-layer motherboard model.

The result of this is that there are many unnecessary designs in the design of the motherboard, and such designs not only reduce the performance of the system, but also increase the weight of the computer - now the heavy weight of the computer is also

One of the elements that deserves criticism.

But this designed single-board motherboard is different.

Only one motherboard is needed to integrate all electronic components, which can make the circuit system more stable and efficient, and also reduce the weight of the machine. This PCB board, from a process and design perspective, can be said to be

It has reached the limit that the current PCB board design can achieve.

Before the appearance of printed circuit boards, the interconnections between electronic components relied on direct connection of wires to form complete circuits. Now, circuit breadboards only exist as effective experimental tools, while printed circuit boards have already played an important role in the electronics industry.

It has occupied an absolutely dominant position - now, it is the printed circuit board that rules the roost.

At the beginning of the 20th century, in order to simplify the production of electronic machines, reduce wiring between electronic parts, and reduce production costs, people began to delve into methods of replacing wiring with printing. In the past thirty years, engineers have continuously proposed ways to replace wiring with insulation.

Metal conductors were added to the substrate for wiring. Finally, there was the current era of printed circuit boards.

Rossi brought the electronic instruments over. The first thing to do was to check the circuit. Although the software was very cleverly designed, it would be terrible if there was a problem with the basic wiring.

Of course, this is just for insurance purposes. When the software is being designed for the product, the engineers have already checked the software, and the circuit board designed by the circuit itself has also gone through various theoretical tests.

calculation.

Now, this finished product is in Rossi.

The design of the printed circuit board is based on the circuit principle diagram, so as to realize the functions required by the circuit designer. The design of the printing circuit board mainly refers to the design of the layout. It is necessary

Various factors such as connecting and through -hole optimization layout, electromagnetic protection, thermal consumption and other factors. Excellent layout design can save production costs and achieve good circuits. Xing energy and heat dissipation xing energy. The simple layout design can be implemented by hand.

The complex territory is a test for the current people, but in the future, it is achieved with the help of computer auxiliary design (CAD).

This software is such a software, but it is clear that before the Caochuang stage was smooth, before that, Rossi had received a lot of waste boards. But fortunately, there seems to be no problem in this board.

But Rossi did not detect the error, and it did not mean that this board was fine.

Even if there are no errors, after connecting the original chip and capacitance, the entire device has to conduct a major inspection. This inspection will not only be a hardware check, but also the software inspection.

Even if there is no problem with the line, it does not mean that there is no problem with the last product.

The current circuit board is not a mature product like the 21st century. This is an emerging product. The current development of the PCB board of the Jiwei Circuit is less than ten years. Therefore, some cautious problems must be considered.

Moreover, this design is to turn the original double -board structure into a single board structure. The double -board structure will be eliminated by history. This is the fact.

"Probably no problem ..." Rossi took the test report, and then drew a hook on it.

In this way, his task was completed, and the next step was to give it to the following to make a trial.

The plan is done step by step, which is also the company's efficient management experience.

After this motherboard, you also need to be placed in a strong magnetic field and strong interference for engraving anti -interference xing. This is also necessary.

Catherine does not require her circuit board to be able to fall from the fourth floor as Nokia mobile phones, but the quality requirements must be needed.

Especially now there are cloud systems, so the quality requirements of personal computers are even more necessary.

The two must reflect the difference xing, which is Catherine's request.

On the other side, Catherine is going through the procedures for going to Japan.

When July, Catherine is going to Japan.

I finally had a free day. Catherine decided to go to Japan's Expo to see it. By the way, a slight fake.

Catherine found that she hadn't taken a vacation for a long time. You know, she used to take a vacation once a year!

Of course, the current objective conditions are not allowed, but it is still good to scatter it slightly.

As for the box office of "Ling Hun Reaction 2", this Catherine is not worried. From the box office results, this year's Ling Hun reaction results are the same as last year. If there is no accident, it is not possible to make hundreds of millions of profits.

"Kate, get it, this is our new visa."

Elsa handed the visa to Catherine.

"It looks like we can leave soon." Catherine was also very satisfied.

The 1970 World Expo is very famous. This World Expo was the first World Expo that paid attention to environmental protection. It was also a grand event where the United States displayed the ore that landed on the moon in front of the public.

How could Catherine let go of such an opportunity?

"It's next month~"

She decided.

A poor guy who was confused by the circuit board was passing by...@.