Rebirth: I carry a desktop computer inside me

The first negotiations on cooperation were not successful.

But the heart of cooperation, the left wing is there.

Because Yu Xinran said well, although in terms of technology, Al's balance bike is also good, and the quality control is also very good, but in this time period, the market is very niche.

After SEG was acquired, it was clear that there was more money to develop new balance bikes.

The traditional approach of rice is cost-effective.

Perhaps, when the time comes, there will be another 1999 yuan balance car, which is really a Japanese dog.

Don't you really want a little profit?

Therefore, Zuo Feng's words did not say death, the two sides dispersed in friendship, and Yu Xinran said that he would let Zhang Jing continue to follow up the negotiations.

The thing in the shopping mall, that's it, many times it is impossible to be so smooth, all of a sudden acquisition, or investment, need to negotiate slowly.

After sending Zhang Jing and the others back to Kyoto, Yu Xinran took Lin Yun to the magic capital.

Jiang Cheng, but he has been there for several days.

The newlywed just parted, and I miss it very much.

---づ♡ど---

At this time, Jiang Cheng, who was in the magic capital, was busy with the research and development of the whole machine for five or six days.

Keyu light source's laser, although not very perfect, but basically able to emit 193nm excimer laser, this component, under the leadership of vice president Jiang Lei, preliminary rectification, has been sent to Modu Microelectronics.

The objective lens system of Changchun Guangji Institute has also been transported.

Today, Jiang Cheng is taking Lian Guanghao, the head of lithography machine research and development, and other engineers to carry out centralized assembly and verification.

If it was just them, it was estimated that assembly would be a problem, but Jiang Cheng was there, and they felt that things were much smoother.

Any component, where it should be assembled, the connection lines of various systems, how to layout, in Jiang Cheng's heart, there are numbers, so that everyone has something they don't understand and have questions, Jiang Cheng just said.

Under the dim light, Jiang Cheng and others wore dust-free suits and began the prototype experiment that had just been assembled.

This is the first prototype, and it is more used as a complete machine assembly test and verification function.

"Is the control system of the double workpiece table OK?" Looking at the behemoth in front of him, Jiang Cheng was also agitated in his heart.

The engineer of the control system raised his hand and compared it to an OK.

The system, which has been developed and tested since the arrival of the double workpiece station at the beginning of the year, has been continuously improved during the assembly of the complete machine to accommodate completely new components.

Jiang Cheng looked at Lian Guanghao, "Okay, let's start the machine and try."

Lian Guanghao clenched his fists and turned on nervously.

After powering on, the humble console screen on the side slowly boots up.

The whole machine, although there is no beautiful appearance, but the basic parts are complete.

Seven or eight people guarded, recording the data according to their respective division of labor arrangements.

The function of each component and system needs to be used normally.

The tester took two 12-inch wafers and put them on, and the equipment operator began the operation.

In the process of lithography, there are few places where labor is required.

Before that, the photoresist had been spin-coated in the spin coater, and after soft drying, it was waiting for the photolithography to be exposed.

The laser is excited, passes through the light mask, illuminates the pattern above, enters the objective lens, and then projects it on the photoresist on the wafer.

Because it was still a preliminary test of the whole machine, Jiang Cheng did not add the immersion system.

The photoresist is very sensitive to deep ultraviolet light, and after irradiation, a photodecomposition reaction is produced to form a "ravine", and then through development, drying and other operations, it can be etched.

The test is a simple test circuit pattern, under the control system, the double workpiece table moves quickly and slightly, piece by piece exposure.

A 12-inch wafer can lithography different numbers of chips depending on the size of the die.

As is currently being tested, nearly 200 pieces can be cut.

Soon, the pattern on the mask was lithographed.

The tester takes out the wafer, develops, dries, etchs.

During this period, it is also necessary to use a lot of ultrapure water, and use this water to clean the impurities on the wafer.

It's a boring lithography process, but it's really magical.

Through lithography, the pattern is engraved on the wafer, tens of nanometers line width, without passing through the microscope, it cannot be seen at all.

Then, through operation, copper and other metals are allowed to grow epitaxically in the etched area to make nanoscale circuits.

In a small chip, the circuit is densely clothed.

After three hours, the wafer of the test was ready, and the parameters were tested by personnel at each step before, and then detailed testing and verification began.

“...... The process reaches up to 45nm! Although he was blindfolded, Lian Guanghao looked at the parameters on this detection instrument and jumped up excitedly!

This is still dry lithography, if through immersion lithography, can it break through 28nm?

Even through multiple exposures, achieve a higher process ?!

Lian Guanghao's words made the people on the field immediately cheer!

"Really? We actually succeeded?!

"Oh my God, we got it!"

"Jiang Dong is awesome!"

......

Jiang Cheng shook his head and smiled, these young men are still too young, he just watched it (simulated by the way), and found that only a few of the gates had a minimum line width of 45nm, and they were extremely uneven.

Here, both the lithography process is not perfect, and there may be defects in some subsequent processes.

However, at this time, everyone is excited, they have been busy for more than half a year, and there is such good news to stimulate them.

"This is a huge step forward and one step closer to our immersion lithography machine." Jiang Cheng spoke, "However, don't relax, we still have a lot to improve." Jiang Cheng reminded.

Not only that, immersion lithography is not so easy.

In addition to ultrapure water, supporting process technology is also required.

This piece needs the assistance of engineers who start the headset.

And they will need a few days to bring people over.

In addition, now is the research and development test stage, ultrapure water these, purchase can be. But the real production line, which needs mass production, needs more ultrapure water, and must be equipped with circulating ultrapure water preparation and storage equipment!

In this area, the technology is in the hands of Japan and other countries.

Lian Guanghao said happily, "Understand, Jiang Dong, under your leadership, we believe that in another month or two, we will definitely be able to get the immersion lithography machine out!"

"Well, it's good to have faith. Now that they are almost off work, everyone will sort out and collect the data, in addition, confidentiality requirements, relevant test conditions, data parameters, can not be transmitted. Jiang Cheng finally reminded.

"I know."

"Understood!"

Hearing the news of the end of work, everyone breathed a sigh of relief and replied unanimously, and only then began to leave.

Jiang Cheng took a closer look, and then left the dust-free workshop.

After changing his clothes, Jiang Cheng got his mobile phone.

On the mobile phone, there are two missed calls from Yu Xinran.

"Hey, Xinran?"

"Jiang Cheng, are you busy?" On the other end of the phone, Yu Xinran's voice was very happy.

"Yes, just came out of the lab. What about you, what are you up to?

"Me, guess where I am?" Yu Xinran said with a smile.

Jiang Cheng was stunned, "You came to the magic capital?" "

Uh-huh!" Yu Xinran nodded happily and replied, and then his voice became quieter, "I missed you..."