To do IGBT, in addition to the technical research and development team, you also need funds, as well as related manufacturing equipment.

Tang Fei has the first two items for the time being, and a R&D team has been formed, and the funds on the company's books are temporarily enough, but what is lacking is the relevant manufacturing equipment.

It is not enough to have a lithography machine, but also an IGBT assembly line, as well as a series of related equipment. The lithography machine is only the core equipment, mainly used to make chips and large-scale integrated circuits, and what is really needed to do IGBT is the assembly line, which assembles chips, integrated circuits, and various accessories together to form an IGBT module.

Since he wants to do IGBT, Tang Fei has listed his own plan.

It is planned to use about 2 years to build an industrialization base with an annual output of 500,000 pieces of 8-inch IGBT chips and an annual output of more than 1 million high-power IGBT packaging and testing capabilities, with full coverage of product voltage levels from 600 volts to 6500 volts.

Tang Fei wants to be the first enterprise in China to master the complete industrial chain of IGBT chips from design, chip manufacturing, module packaging, system application, etc.

The lithography machine has its own, and it is still a very advanced lithography machine, at present, there is a lack of an IGBT assembly line.

Tang Fei also knows what the IGBT production and assembly line looks like. After thinking about it for a long time, I said in my heart, if there is really no way, then design an assembly line by yourself.

In addition to the assembly line of IGBT modules, other related production equipment is also needed, which Tang Fei does not have for the time being.

At present, it is very difficult, or even almost impossible, to purchase IGBT process equipment in China. In the production and manufacturing process of IGBT, each production process is supported by special equipment.

Some of them are not available in China, or the technical level is not up to them. For example, the German vacuum welding machine can control the chip welding void rate at less than 1%, while the domestic equipment void rate is as high as 20% to 50%. Foreign equipment, such as sheet processing equipment, may not be sold to China.

Another example: Japan-made surface sandblasting equipment, the Japanese government is not allowed to export. Good imported equipment is very expensive, and cheap equipment is not suitable.

In addition, automated test equipment is essential, but expensive. If it is replaced by manual testing, it will increase the human factor, and the BT production process is very demanding on the environment. Requires a high-standard air purification system, a world-class high-purity water treatment system.

Thinking of this, Tang Fei felt a little big.

I even thought to myself, am I too reckless, the production and manufacturing of IGBT is indeed too difficult, even if I design the first IBGT with the technical knowledge in my mind, it is estimated that it will be very difficult to manufacture and produce.

Unless you have your own related, supporting production equipment.

Standing in front of the window, looking at the two large factories in the distance that were basically built and ready to be used for IGBT manufacturing, Tang Fei remained motionless and frowned.

For a long time, for a long time, Tang Fei sighed and comforted himself, take one step at a time, there must be a road before the car reaches the mountain, maybe it will be bright.

Well, first design the first 6500V IGBT, first complete the task of the system, two months, it is really urgent.

Fortunately, my brother has a full of technical knowledge and has built the framework of the design, otherwise, it would be almost impossible to complete such a difficult task in two months.

After setting the goal and designing the first IGBT first, Tang Fei's dull mood was much lighter.

Sun Xu and Tang Zhonghua are also very powerful, leading several professional and technical personnel, everyone works together, and sometimes even works overtime until late.

The design progress is also very good, basically within Tang Fei's expectations, and sometimes, Tang Fei and everyone design it themselves.

The days went by day by day.

The batch of IGBTs purchased by the Red Star Plant arrived, which did not affect the assembly of the first DJ4 electric locomotive. With IGBT, the DJ4 traction motor system of Jiuzhou Industrial Co., Ltd., the control cabinet was successfully trial-produced.

Hongxing Factory is carrying out the assembly of the first DJ4 electric locomotive, Jiuzhou Industry is also developing rapidly, under the guarantee of sufficient funds, the office building changes almost every day, layer by layer in height.

During this time, an interesting thing happened.

Tang Fei received a package from Donghai City, and when he saw that the person who paid it was Britt, when he received this package, Tang Fei was still a little curious.

What's in there?

Hurriedly opened it, there were small cartons inside, and when he saw the package, Tang Fei was happy, guessed what it was, and hurriedly opened one of them.

That's right, it's really a USB flash drive, a USB flash drive with a storage capacity of 2G. From our current point of view, the storage capacity of 2G seems to be a little small, but in the case of 1.44 trillion floppy disks, the storage capacity of 2G is already very huge.

Such a USB flash drive is almost worth 1,500 3.5-inch floppy disks. Tang Fei was suddenly excited, picked up this USB flash drive and inserted it into his computer, and stored some files in this USB flash drive.

The read and write speeds are blazing, and there is no mechanical clicking sound like a floppy disk, well, this thing is really good. With its advent , the 3.5-inch floppy disk, which is currently widely used by everyone, will soon be obsolete.

This Britt is really a caring person, and he actually sent me ten USB flash drives. Tang Fei thought in his heart, well, keep a few for yourself, and the other few can be used to give away.

So, not long after, Wang Hailong, Zhao Ke and others all had such a USB flash drive, and even Li Xueyan also had one, and it was still a pink USB flash drive.

Tang Fei specially picked from many colors of USB flash drive, knowing that girls like pink, and sure enough, Li Xueyan was very happy to receive this gift.

When she was in the office, Sister Zhang had an electronic file to copy to Li Xueyan, but there were several megabytes of the file, and a 3.5-inch floppy disk obviously couldn't fit it, and Sister Zhang was worried.

Li Xueyan took out her USB flash drive, plugged it into Sister Zhang's computer, and easily copied the file, leaving Sister Zhang stunned.

After reacting, Sister Zhang seemed to have discovered a new continent, and hurriedly chased after Li Xueyan with curiosity and asked what it was.

Li Xueyan took out her USB flash drive and happily introduced it to Sister Zhang, and suddenly, all the colleagues in the office knew that Li Xueyan had this strange thing.

Some colleagues even asked where they bought it, and they wanted to buy one too. However, there should be no such thing in China for the time being.

This is just a small episode.

In the blink of an eye, it has been more than two months since the first DJ4 electric locomotive of the Red Star Plant entered the car, and the assembly progress is good, and several major systems are being assembled, such as the traction motor system on the locomotive, the control system, the transformer system and so on.

Xie Zhenhua was very busy, and took his technicians to guide the workers in the assembly together with the technicians of Siemens, and also worked hard to absorb and digest the technology on the DJ4 electric locomotive, hoping to lay the foundation for independent research and development in the future.

He didn't have time to pay too much attention to Jiuzhou Industrial Co., Ltd., and even in his impression, it seemed that he hadn't seen Tang Fei for a long time.

Sometimes, Xie Zhenhua also wonders what happened to the DJ4 traction motor system of Jiuzhou Industrial Co., Ltd. and how happened to their control cabinet.

Tang Fei seems to be going to be IGBT, he hasn't seen anyone else for so long, is he really burying his head in IGBT, thinking about it in his heart, Xie Zhenhua will shake his head, he knows that it is too difficult to do IGBT, maybe after Tang Fei hits a wall, he will give up his plan to do IGBT.

During these days, Tang Fei was indeed immersed in the research and development of his first IGBT, and two months were about to pass in a blink of an eye.

The design work finally came to an end, and Sun Xu and Tang Zhonghua personally sent the final design materials to Tang Fei's desk.

The chief designer of this 6500V IBGT should be regarded as Tang Fei, and some important design technical information will also be handed over to Tang Fei for final review.

Picking up the pen, Tang Fei carefully reviewed these technical materials, Sun Xu and Tang Zhonghua quietly retreated, and gently closed the office door.

It took more than an hour, Tang Fei finally reviewed this part of the technical information, but he didn't find anything wrong, Sun Xu and Tang Zhonghua really had two brushes, and they fully implemented their original design intentions.

This is a veritable fifth-generation IGBT, and it is still in the 6500V class. Generally speaking, the higher the voltage level, the more technically difficult.

After reviewing, Tang Fei picked up the pen and signed his name, and the design and development of this IGBT basically came to an end.

That is, the design is almost complete. The compilation of manufacturing process data can be carried out, and if there is supporting manufacturing equipment, then production and manufacturing can be carried out.

It's just that there is a shortage of these production equipment.

The moment Tang Fei finished signing his name, he breathed a long sigh of relief, and at the same time, a "ding" sounded in his mind, and then the sound of the system.

"Congratulations to the host, complete the quest, please pay attention to check the rewards. ”

Then there is the sound of gold coins arriving in your account, and completing this task will reward a total of 1600 gold coins, in addition to a mystery pack.

It seems that the system fully approved Tang Fei's design, otherwise, the task would not have been completed immediately the moment Tang Fei finished signing.

Haha, a total of 1700 gold coins, you can summon another technical talent. The current system is level three, with two summons at the first level, four summons at the second level, and eight summons at the third level.

Seven had already been used up before, and there was still a summoning slot.

What Tang Fei wanted to do most was not to summon an elite subordinate, but to be a little eager to see what was in the mystery package!

So, Tang Fei immediately checked this mysterious gift package, and when he saw the contents clearly, Tang Fei shouted "ah", at this moment, Tang Fei was completely out of shape!

………

Today's three watches, the first one is sent!