Chapter 495： Successfully developed transistor

Reinhardt can't go wrong. Reinhardt was very successful in the last harvest of Spanish gold. Cyric believes that this time French gold will definitely be in the bag.

With this batch of gold, the cause of Germany will surely be successful! Cyric believes that as he travels, this time and space has changed from history.

Reinhardt left. The sky outside was already dark. Before I knew it, it was another busy day. Cyric patted his mouth and yawned, and has not been home for several days.

The battle situation has stabilized, and there is nothing to worry about. Now, there is no need to be afraid of others. Now there is a joy of victory.

Go home.

Standing up, he just wanted to put on his coat and go home, but his coat threw a pile of papers on the table to the ground.

This pile of documents has just been delivered. Cyric looked at the pile of documents and shook his head. As a head of state, there are endless tasks every day. Perhaps only a model worker like Zhu Yuanzhang likes this. Live it.

He looked down, and suddenly his eyes were filled with surprise.

A report is impressive.

gema company has successfully trial-produced a pn junction transistor!

Cyric from later generations certainly knew what it meant.

Transistors can be regarded as opening a new door to electronic technology. The integrated circuits of later generations are developed on the basis of transistors. The foundation of microelectronics technology is the transistor!

Cyric is very concerned about the situation, and has made several guiding opinions, hoping to make transistors as soon as possible.

Once, under Cyric’s proposal, the miniaturization of electron tubes has proceeded very smoothly. The volume of various electron tubes has been successfully reduced to one-tenth of the original size.

However, this is already the limit of electronic tubes. The future technology is absolutely inseparable from transistors. Computers, radars, sonars, and all kinds of electronic equipment require a large number of transistors.

This is a cross-age discovery!

"Führer, do you want to go home?" Graf the guard asked Cyric.

"No, go to the gema company." Cyric said.

He can't wait.

In World War II, many kinds of technologies were born, more than in the past 100 years. It can be said that war is a catalyst.

In the car, Cyric is in constant joy and will open the door of microelectronics technology from now on.

what does this mean? Our own precision guided weapons can be further optimized and cost reduced. Our own radar can be more compact, with a longer detection range and higher accuracy, and even meet the needs of artillery radar guidance!

Your own wireless telegraph will also be lighter and easier to implement your own frequency hopping encryption technology.

Historically, it was not until December 1947 that Bell Labs in the United States successfully developed a point-contact germanium transistor. But in fact, the development of semiconductors has already begun.

In the first 10 years of the 20th century, communication systems have begun to use semiconductor materials. For example, crystal radios use semiconductor materials for detection.

As for the invention of the transistor, it can be traced back to 1929, when engineer Lilian Feld had already obtained a patent for a transistor.

However, limited to the technological level at the time, the materials used to manufacture such devices did not reach sufficient purity, making it impossible to manufacture such transistors.

During the Second World War, many laboratories made many achievements in the manufacturing and theoretical research of silicon and germanium materials, which laid the foundation for the invention of the transistor.

It can be said that these technologies have already laid the groundwork, but more financial and material resources and manpower are needed to focus on tackling key problems.

Other countries may not realize the great significance brought by transistors, but Cyric knows that in later generations, it is difficult to move without microelectronics.

Moreover, Cyric has a background in engineering, of course, he is quite familiar with electronic circuits, and he is also quite familiar with the most common pn junction in transistors.

The only thing needed is to use the industrial technology of this era to make it!

"Crunch," the car stopped. The gema company has arrived.

This was originally just a small company, but with the support of Cyrenk, the company's scale has been expanded hundreds of times. Now the gema company is the most important radar research and production company in Germany, and it is also a confidential department.

For example, at the gate, there is the Gestapo to guard it.

Cyric's car stopped directly in front of the building. This was the company's research institute. At this time, Dr. Hollmann, who had just received the news, ran out in three and two steps.

His documents were sent three days ago. Documents from rear scientific research institutions like him must be placed behind the intelligence of the army. Therefore, it took a few days before they were reported.

When he learned that Cyric was coming, he was extremely excited. Seeing Cyric got off the car, he could not hide his excitement: "Great head of state, you are a genius. We follow your vision, Successfully manufactured new electronic components. This is a great invention!"

Using different doping processes, through diffusion, p-type semiconductors and n-type semiconductors are fabricated on the same semiconductor substrate, and a space charge area called pn junction is formed at their interface.

The pn junction has unidirectional conductivity, which is the material basis of many devices in electronic technology such as semiconductor diodes and bipolar transistors.

At this time, Dr. Hollmann chattered to Cyrek: "We have tried many times according to your design plan, but initially failed. We realized that the purity of our semiconductor materials was not enough, so we adopted The new vacuum smelting equipment can finally purify germanium high enough, and then this great invention has been realized!"

The most important thing about semiconductors is the purity of the materials, which can only be purified by smelting in a vacuum.

Of course, this is inseparable from high investment, otherwise, no scientific research has this kind of strength.

Cyrenk nodded: "Ge transistors can be industrialized, and by continuously improving technology, costs can be reduced. At the same time, silicon semiconductor transistors must also be developed."

Now, the cost is very high, but Cyric believes that it will come down soon. As long as you have heard of Moore's Law, you will know the speed of the replacement of electronic products.

There are several kinds of semiconductor materials, but only two are suitable for transistors, especially silicon. Integrated circuits are made entirely on silicon.

"After research, if the radar uses a large number of transistors, the reliability will be improved by about a hundred times." Dr. Hollmann showed a manufactured transistor to Cyrek and placed it in his hand, about the size of a peanut bean.

No filament, no grid or something, any vibration will not affect the work of this electronic component, and its reliability is quite high.

(I made a mistake again, nagging a chapter. As a physics teacher, I really admire the gate of transistors. Now everyone uses mobile phones to read books, thanks to the original father of transistors!)

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