Chapter 36: Successful Wafer Fabrication

Time flies, and it has been a full month since Xinghuo Technology purchased the Graphene Chip Research Institute from the Chinese Academy of Sciences.

Sure enough, as Academician Tian Kai said, Xingyu Technology only spent 500 million yuan to purchase this research institute in a package.

Zhou Yu handled the company's business remotely during this time, and has been studying graphene chips by Academician Tian Kai's side.

Today he was discussing the graphene wafer production plan with Feng Yunde, and his girlfriend Chen Jin came to the institute to find him.

Zhou Yu's face was covered with black ash, like a coal worker, and he showed his white teeth, only to notice that the smile on his face was getting thicker.

Chen Jin looked distressed and said, "How did you become like this."

She immediately took out a handkerchief and carefully wiped Zhou Yu's face.

"It's okay, it's all graphite powder, how do you have time to come here." Zhou Yu said with a smile.

"Today is the weekend, and I have my rotation off, and it happens to be June 1st, so I'll come and see you."

Chen Jin wiped Zhou Yu's face clean, took a plastic food box, and said, "Today is your birthday, I personally made a birthday cake for you, and the birthday of Children's Day is very easy to remember."

Zhou Yu took out the birthday cake and took a bite, and the crispy taste filled his mouth.

He said happily: "It's delicious, whatever food you do is delicious."

"Pay attention to the impact, we single dogs are getting 10,000 critical hits." Feng Yunde probed his head over and couldn't help but say.

He is 1.7 meters tall, a little thin, and his expression is very sluggish, looking dull.

"Feng Yunde, you're not a single dog either, aren't you chasing Jiang Weiwei now?" Zhou Yu teased.

"He's the ultimate ...... Dog ~ beast. ”

Chen Jin blurted out, and the words came to his lips and retracted them.

"You work! I'll go back and take care of the Bajie Education Network, and we'll talk again in the evening. Chen Jin said goodbye.

"Start work, record the 1648th experiment, observe the growth scheme of graphene transistors, and see if theoretical graphene wafers can be produced." Zhou Yu commanded loudly.

Feng Yunde's eyes became sharp, and he immediately observed the hologram of the reactor, and output data through the sensor to judge the situation in the reactor.

This reactor is his invention, and it is shaped much like an iron-making blast furnace.

Graphite is ionized into a carbon ion cluster by a high-energy electric field at the mouth of the furnace, and the carbon ion cluster becomes a graphene molecular colloid after being supplemented by an electron beam in the middle layer of the reactor, which is stacked into a wafer composed of billions of graphene transistors through a special magnetic field at the bottom of the reaction furnace.

This is the graphene wafer growth manufacturing process studied by Feng Yunde.

The graphene in the reactor quickly completed the reaction, Feng Yunde pulled out the wafer, and used the equipment to quickly judge whether the wafer met the requirements.

He shook his head in frustration and said: "This experiment has failed again, we have failed so many times in the processing materials of graphene chips and graphene wafers.

How long will it take for us to make graphene chips, and Weiwei said that if I become a level 9 expert in the company, she will consider marrying me. ”

Zhou Yu thought to himself that Jiang Weiwei was trying to escape the entanglement of the ultimate licking dog beast and said a goal that was difficult for him to accomplish.

"We started to summarize the data of this failure, and I believe that failure is the mother of success, and we will succeed very quickly." Zhou Yu encouraged.

He really knew that the graphene chip would soon succeed, because of the technology tree in Zhou Yu's mind, the leaf of the graphene chip was about to bloom.

Zhou Yu knew that he would sum up some experience again, and he would communicate more with Feng Yunde and Academician Tian Kai, and the graphene chip would definitely make a breakthrough.

Feng Yunde sorted out the data on the failure of graphene wafer production, and he and Zhou Yu went to Academician Tian Kai together.

They came to Academician Tian Kai's office and saw Tian Kai sitting on a chair, using a hologram image in front of him to display a graphene chip magnified tens of thousands of times.

He was constantly adjusting the positions of the different transistors on the graphene chip.

This work is the most critical coding work of graphene chips, and it is the core technology of chip design.

Tian Kai saw Zhou Yu coming, and he approved: "Mr. Zhou, you are the person I have met with the fastest learning efficiency, you have only studied with me for more than a month, and you have mastered most of the knowledge of graphene chips, which is richer than the knowledge of the researchers I took for a year before."

"Genius is always different, and it's really not difficult for me to learn it."

Zhou Yu showed a confident expression, thinking to himself, I have mastered a lot more graphene chip technology than you think.

He has now learned how to pretend to be a true scholar, and no matter what a genius makes, others will only be surprised and not doubted.

"Academician Tian, Dr. Feng and I have designed thousands of experiments to solve hundreds of difficulties in manufacturing graphene wafers, but there are still some details that have not been grasped well, so I will ask you." Zhou Yu said in a respectful tone.

He then recounted the problems found in the production of graphene wafers.

Tian Kai is worthy of being an academician, or an academician who studies graphene, after he read the data, he immediately found out what went wrong in the experiment, and discussed with Zhou Yu and Feng Yunde how to design a better experiment.

Zhou Yu listened to Tian Kai's explanation, and the golden raindrops of the science and technology tree continued to fall in his mind, and soon reached a critical point, the leaf of the graphene chip bloomed, and he harvested the manufacturing method of the graphene chip, including the manufacturing process of the graphene chip.

"Academician Tian, Dr. Feng, I think our theory is perfect enough, and the reason why we have failed many times is because of impurities mixed in graphene." Zhou Yu said in an affirmative tone.

"This is not possible, we use 99.9999% pure graphite, after ionization and magnetic field screening, the purity of graphene is already very high." Feng Yunde said in disbelief.

"The problem arises in the ionization step, where the graphite powder is ionized at the same time, the air is also ionized, and a large number of impurities are mixed into the graphite ion cluster." Zhou Yu hit the nail on the head.

Feng Yunde slapped his thigh and said with annoyance: "Why didn't I think of such a simple problem, graphite is ionized, and air can also be easily ionized."

"Let's go, let's conduct an experiment under a vacuum and see the results of the experiment."

Feng Yunde immediately ran out of the office, ready to verify the idea.

Zhou Yu was very confident, he didn't go to verify it with Feng Yunde, but asked Tian Kai: "Academician Tian, have the other processes of the graphene chip been completed?"

Tian Kai frowned and said, "The graphene chips I studied are different from ordinary silicon-based chips.

Considering that Huaxia chip processing is long in etching and short in lithography, I designed that the processing of graphene chips only needs to be etched, that is, the etching accuracy should be improved a lot.

Graphene wafers are processed into graphene chips, and the wafers need three main processes: etching, coding, and packaging.

By moving graphene transistors, the laboratory needs 500,000 yuan to manufacture a square millimeter graphene wafer, and a total of 5 million yuan is required to complete the wafer processing.

In the past month, I have spent 500 million yuan to verify only the two processes of successful coding and packaging, and the etching process is too demanding, but the theory does not need to be changed.

The verification chip I made in the lab, the etching step is slowly ground with a hydrogen atom beam.

Industrial processing is extremely difficult, and there is no etching machine in the world that meets the required accuracy. ”

Zhou Yu recalled the technical information etched on the science and technology tree, which also required the correction of a 1-nanometer graphene transistor with a 0.1-nanometer hydrogen atomic beam.

Feng Yunde pushed open the office door and said in surprise: "It's really the impact of impurities, let's take a look at the first batch of industrially processed graphene wafers."

"It worked." Tian Kai stood up with an excited face.

"It's good to be successful." Zhou Yu stood up calmly.

On their way to the laboratory, Feng Yunde chattered endlessly, telling about the process of his experiment.

"After listening to Mr. Zhou's speculation, I used vacuum ionization to process a batch of graphene wafers, and the graphene wafers that came out of the furnace have reached the usable level, but they are not theoretically perfect wafers.

I have also improved the magnetic field screening method to sieve out most of the impurities, and I will definitely be able to produce perfect graphene wafers. ”

Zhou Yu waited for the reactor reaction to be completed, and soon the reactor officially spit out a square meter of graphene wafers.

After Feng Yunde's detailed inspection, he clenched his fists and said excitedly: "The graphene wafer data is perfect, our experiment is successful, and we can directly use it to process graphene chips."