Blooming America

"The test is finally complete."

Rossi looked at the circuit board in his hand, and then heaved a sigh of relief.

Printed circuit boards are providers of electrical connections for electronic components. 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 wiring and assembly errors, and to increase the level of automation and production labor.

The green board commonly found in electronic machines is a printed circuit board, and the square black (or silver) chip on it is an integrated circuit.

Usually the color of B is green or brown, which is the color of ldermask. It is an insulating protective layer that can protect the steel wire and prevent parts from being welded to the wrong place. A screen printing surface (reen) is also printed on the solder mask. Usually words and symbols (mostly white sè) are printed on this to mark the position of each part on the board. The screen printing surface is also called the legend surface. When the final product is made, integrated circuits, transistors, diodes, passive components (such as resistors, capacitors, connectors, etc.) and various other components will be mounted on it. Kind of electronic parts. Through the wire connection, the electronic signal connection can be formed and the application function can be formed.

Printed circuit boards and integrated circuits are not so easy to handle.

At that time, Catherine just spent more than ten years. Of course, she also did other things. She finally made the earliest Apple TV.

But in a strict sense, the kind of TVs that are built by themselves with transistors are said to be integrated circuit TVs... and they are slightly unreliable. However, after the formal production, although the original process is used, it can be regarded as the first-generation integrated circuit.

Of course, making printed circuit boards is much simpler than integrated circuits.

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

Although the skeleton is simple to make, the principle is very complicated.

Whether the length between the traces is equal, whether the signal may be interfered, whether there are design defects, etc., all need to be considered.

The printed circuit board that has just completed the engraving test is a newly designed printed circuit board of the company.

But this printed circuit board is not ordinary.

Because this printed circuit board is made with the supercomputer Galaxy.

Version B, also known as printed circuit board, is an important electronic component and a support for electronic components.

Since the printed circuit board is not a general terminal product, the definition of the name is slightly confusing. For example, the motherboard for personal computers is called the main board, and cannot be directly called the circuit board. Although there are circuit boards in the motherboard, They are not the same, so when evaluating industries, the two are related but cannot be said to be the same.

Another example: because there are integrated circuit parts mounted on the circuit board, some people call it a board, but in fact it is not equivalent to a printed circuit board.

As integrated circuits become more and more complex, the design of the circuit board itself will become more and more complicated. At this time, how to consider the use of the least materials, the most stable circuit design, etc. to make a circuit board, is also increasing The more the test of the level of technical personnel.

One by one integrated chip, there are often a dozen or even dozens of pins, and then these pins need to be connected to resistors, capacitors, power supplies, etc., these problems are solved, the huge amount of engineering is hard to imagine .

And once there is a design problem, and there are circuit defects on the circuit board, at this time, you need to use additional wires for soldering. This is the flying line. For an electronic product, the problem is very serious and deadly.

But this is not the case anymore.

This situation has been changed after the emergence of the current Galaxy supercomputer.

A software designed specifically for the B circuit board was developed. This software can automatically generate printed circuits. Because such circuits are automatically generated by computers, their circuits will not be affected by the habitual thinking like the human brain. It will change according to the external environment.

As long as the function of each pin of the electronic component is set, the software will perform the optimal circuit design according to the software of the device.

One by one, of course, this function is in fact not very 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 finished product designed.

This is a single board motherboard.

——This will be a motherboard with a revolutionary life.

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 doesn't seem appropriate to put it in the case, so the design becomes a double-layer motherboard model.

The result of this is that there are many unnecessary designs in the design of the motherboard. This design reduces the performance of the system, and at the same time increases the weight of the computer. The heavy weight of the current computer is also One of the elements that is worthy of criticism.

But this single-board motherboard was designed differently.

All the electronic components can be integrated with only one motherboard, which can make the circuit system more stable and efficient, and can also reduce the weight of the machine. This B board, from the perspective of process and design, can be said to have reached the limit that the current B board design can reach.

Before the advent of printed circuit boards, the interconnection between electronic components relied on the direct connection of wires to form a complete circuit. Now, the circuit breadboard only exists as an effective experimental tool, and the printed circuit board has become an absolute ruler in the electronics industry. 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 equipment, reduce the wiring between electronic parts, and reduce production costs, people began to delve into the method of replacing wiring with printing. Over the past 30 years, engineers have repeatedly proposed to use metal conductors for wiring on insulated substrates. Finally, there is the current era of printed circuit boards.

Rossi took the electronic instrument. The first is to check the circuit. Although the software design is very clever, but if there is a problem with the basic wiring, it can be bad.

Of course, this is just to be on the safe side. When the product is designed for software, engineers have already checked the software, and this circuit board designed by the circuit itself has also undergone various theoretical calculations.

And now, this finished product is in Rossi's hands.

The design of the printed circuit board is based on the circuit schematic diagram, so as to realize the functions required by the circuit designer. The design of the printed circuit board mainly refers to the layout design, which needs to consider various factors such as the layout of external connections, the optimized layout of internal electronic components, the optimized layout of metal connections and through holes, electromagnetic protection, and heat dissipation. Excellent layout design can save production cost and achieve good circuit performance and heat dissipation performance. Simple layout design can be implemented manually.

The complex layout is a test for people today, but in the future, it will be realized with the help of computer-aided design (CAD).

The current software is one such software, but it is clear that the initial stage is not all smooth sailing. Prior to this, Rossi had already received a lot of scraps. Fortunately, there seems to be no problem with this board.

But Rossi did not detect the error, which does not mean that the board is good.

Even if there is no error, after connecting the original components such as the chip and the capacitor, the entire device will undergo a major inspection. This inspection will not only be a hardware inspection, but also a software inspection.

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

The current circuit board is not a mature product like the 21st century, it is an emerging product. The current development of Jiwei Circuit B board has only been less than ten years. So some serious issues must be considered.

Moreover, the current design is to change the original dual-board structure into a single-board structure. The dual-board structure will be eliminated by history. This is a fact.

"Probably no problem..." Rossi took the engraved report and drew a tick on it.

In this way, his task is completed, and the next step is to hand it over to the next to continue the trial.

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

This motherboard needs to be placed in a strong magnetic field and strong interference for engraving and anti-interference. This is also very necessary.

Catherine does not require that her circuit board can be as good as the Nokia mobile phone from the fourth floor without being broken, but the quality requirements are definitely needed.

Especially now that cloud systems have appeared, so the quality requirements for personal computers are even more necessary.

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

On the other side, Catherine is in the process of going to Japan.

By July, Catherine will go to Japan.

Finally, there will be some free days, Catherine decided to go to Japan's World Expo to see, by the way, take a break.

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, current objective conditions do not allow ~www.wuxiaspot.com~ but a little relaxation is good.

As for the box office of "Ling Hún Reaction II", this Catherine is not worried. Judging from the box office results, this year's Ling Hún reaction results are the same as last year. If there are no accidents, it is not impossible to make a profit of hundreds of millions.

"Kate, it's done, this is our new visa."

Elsa handed her visa to Catherine.

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

The 1970 World Expo is very famous. This World Expo is the first World Expo that pays attention to environmental protection. It is also a grand event where the United States will display the ore from the moon to the public.

How could Catherine let go of such an opportunity?

"It's next month~"

She decided.

I was so dizzy and forced to pass by the circuit board......@.