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Chapter 145: New process semiconductor silicon wafer passed the test!

With the materials and equipment, and the leadership of Feng Chengming, an academician of lithography, the chip lithography process is extremely fast.

Before photolithography of five domestic silicon wafers, they need to go through cleaning steps to remove dust, contaminants and residues on the surface.

The specific method is to first clean it with wet method, then clean it with deionized water, and finally fumigate it with hexamethyldisilazane gas to completely dehydrate the surface of the silicon wafer.

Only after two cleaning steps and one fumigation step can the semiconductor silicon wafer reach its own 11N purity, which is also the key before photolithography.

Even though the operators are all students, sometimes students can operate more rigorously

Not to mention that with Feng Chengming supervising the work, they didn’t dare to be lazy at all.

After the fumigation, the five semiconductor wafers were put into the transfer machine and sent to the lithography area inside the lithography machine.

Feng Chengming also changed the first photomask early. As the equipment was started, the gluing equipment began to automatically apply glue to the silicon wafer and perform edge glue correction.

The chip production steps are roughly divided into cleaning, glue coating, baking, photolithography exposure, PEB post-baking, pattern dissolution, etc.

Because”multiple exposure technology” needs to be used, the production steps have to be repeated, which greatly increases the complexity.

but!

Feng Chengming is considered a proficient person, and the production steps are not difficult for him at all.

After all, he also learned from Lin Tian, a red-quality lithography talent, and he can be regarded as a”personal disciple””

An hour and a half later, the five 12-inch semiconductor silicon wafers were all engraved with circuit patterns and were waiting to be sliced and packaged.

After using professional equipment to divide the slices, a student in charge of chip testing immediately used the testing equipment to test

a moment later

His expression changed, and he quickly came to Feng Chengming and said,”Teacher, there seems to be something wrong with these semiconductor silicon wafers!”

“What?”

Feng Chengming’s eyes widened

He ignored the frightened students and hurriedly came to the testing equipment to check the specific values. He was stunned for three seconds and said in disbelief:

“Oh my God! With the same production steps, why does the power consumption of Qingzhou chips decrease but the performance increases? Chen Xing, what improvements have you made to the semiconductor silicon wafers?”

did not expect!

No one expected it!

These five 11N purity, 12-inch semiconductor silicon wafers have such effects. This is a new technology that subverts their understanding.

It is no exaggeration to say that if this matter spreads, bloggers in the field of chip production can use this as a thesis topic and successfully complete the thesis defense.

unprecedented!

Far ahead!

Feng Chengming took a deep breath, looked at the doctoral students around him, and said seriously:”This matter cannot be spread, and my mouth will be sewn shut. If the news leaks out, you will have no choice but to obtain a master’s degree.””

Threat, naked threat!

But he had no choice. This matter was of great importance, and he must not let the West know even a little bit of information until it was clear.

Once the West learns that Longguo Enterprise has completed the manufacturing of 12-inch semiconductor silicon wafers and has also used some unknown technology to further improve the performance of the chips, they will definitely be full of trouble and go to war.

“Got it, teacher”

“Don’t worry, we are very strict with our mouths.”

“Yeah!”

Several doctoral students quickly assured that it would be difficult for them to graduate, but if they were still stuck as academicians, their studies would naturally come to an end.

“Um”

Feng Chengming nodded and continued:”Let’s continue working. After the packaging is completed, we will also calculate the single-chip yield rate.”

……

the other side

Modu Huakai Ecological Park

Hundreds of Loongson International engineers are having a barbecue at the moment, because only a few people know why there is a team building tonight, and they can let go and have fun.

As for the dozen or so Dutch”living surveillance” engineers, Gao Yongming and the two vice presidents personally entertained and chatted with them.

Several hours passed, and a Dutch engineer vaguely noticed that something was wrong, and whispered to his companions to discuss it.

“Brother, have you noticed that Gao Yongming seems to be a little abnormal tonight? He drank until he couldn’t stand still and kept drinking.”

“like…”

Another Dutch engineer who was asked paused and quickly reacted:”He does seem to be a little abnormal.”

“And usually he doesn’t have a good look towards us, but tonight he was extra enthusiastic and even asked us to have a drink by name.”

“Will it…”

“It’s not about whether it will be, it should be!”

“Shall I go back?”

“If you leave secretly, it’s best to catch the current situation. You should understand what I mean, right?”

“i know what to do”

Several Dutch engineers conspired and began to delay quietly. One of them sneaked away under the pretense of going to the toilet.

In order to hold back this group of”living surveillance”, Gao Yongming has forgotten how much he drank. If he were asked to walk in a straight line now, he would definitely not be able to complete it, but his head is extremely clear.

The Dutch engineer just wanted to use urine to escape, but before he had taken a few steps, he was stared at by Vice President Li Zhengde, who quickly shouted:”Where is Mr. Stanley going? The public toilet is not in this direction.”

Stanley was stunned for half a second, turned around and pretended to be staggering:”I think I can’t drink anymore and need to go home and rest.””

“Shall I take you to a nearby hotel in person?”

“No, I’d better go home and rest, so I won’t bother Vice President Li.”

“Why! But you can’t say this. How can I trust you to go home alone when you are in such a dazed state? How about I drive you back in person?”

The more Li Zhengde behaves like this, the more Stanley feels there is something wrong

He simply stopped pretending and said straight to the point:”Since the vice president strongly requested it, let’s do this. You can send me back to the company. I have a document left at the production factory.”

The voice fell

The situation suddenly became passive

Feng Chengming hasn’t sent a message to Gao Yongming yet. He may still be in labor. He can’t let Stanley go back now.

He didn’t drink at all tonight, just in case the Dutch engineer wanted to leave.

“Look at the sky…”

“No!”

Before Li Zhengde finished speaking, Stanley shook his head and said:”That document is very important. Since Vice President Li wants to send it to me, why not be a good person and do it to the end? Let’s go back to the company together.”

Li Zhengde, who was passive, was a little panicked. Now Loongson International’s production factory is secretly producing chips. If he is caught, all efforts will be in vain.

Seeing Li Zhengde’s appearance, Stanley had already determined that there was something abnormal in the factory, and without waiting to express his opinion, he went straight to take a taxi and left.

Seeing that he couldn’t stop him, Li Zhengde quickly reported it to Gao Yongming, who was still drinking. Hearing this, the latter’s brain suddenly sobered up.

“go back!”

“Go back immediately!”

all of a sudden

Gao Yongming said goodbye in a hurry

Other Dutch engineers also noticed the anomaly. Almost instantly, the senior management rushed to the production factory.

Gao Yongming called Feng Chengming several times, but there was no answer. He was probably still producing chips in the clean room.

loadAdv(7,3);

“problem occurs!”

“What do we do now?”

Li Zhengde, who acted as the driver, quickly asked

Gao Yongming’s eyes flashed with a stern look, and he said in a deep voice:”Now I can only sacrifice your driver’s license and rush back to the production factory as quickly as possible. I will take responsibility for anything that happens.””

Domestic alliances such as Longxing Technology, Kunpeng Company, and Beiji Group are all working hard, and Loongson International must not hold back.

When Li Zhengde heard this, he didn’t care anymore. He stepped on the accelerator and started racing. He was a racing driver when he was young.

less than fifteen minutes

They were the first to arrive at the production plant

However, as soon as he walked in, another Dutch engineer who was on sick leave arrived at the factory in less than a minute.

Originally, he was sick and took three days off to rest. But now something happened suddenly and Stanley called him back to the production factory to check.

Two waves of people, one in front and one behind

Li Zhengde, who was guarding the door, saw the sick Tuqi suddenly appear and quickly stepped forward to stop him, but was pushed away brutally.

“You cunning Longguo people are the ones who produce chips for Longxing Technology, right?”

Tucci strode inside

Dutch engineers are all tall and powerful. When they were sent to Longguo Enterprise, the Dutch company ASML considered this situation.

Unable to stop him once, Li Zhengde stepped forward again to stop him, but was pushed to the ground. His body size was not at the same level.

A small engineer doesn’t take the vice president of a company with a market capitalization of 100 billion at all. Loongson International is truly the only one.

But there is no way

The equipment has been choked by others.

One after another, more than a dozen Dutch engineers arrived at the production factory. They all went straight to the various exits of the production factory to prevent people inside from coming out.

Because he drank too much, Gao Yongming staggered and fell several times. He was very embarrassed and was easily caught up by Tucci.

“Mr. Gao left in such a hurry. Could it be that there was a thief in the factory?”

Tucci has a slightly playful taste

Gao Yongming shook his head to sober up, but the alcohol made him just want to fall asleep, but his willpower told him not to sleep.

Longxing Technology can withstand the pressure and develop 12-inch semiconductor silicon wafers. Chen Xing also dares to be beaten at the front. Why can’t he, Gao Yongming of Loongson International?

Determined, he bit the tip of his tongue hard. A stinging pain made him wake up instantly. He stood up staggeringly and said,”I…I have a document. No, I forgot to turn off the device.””

“oh?��

Tucci sneered and continued:”In that case, let’s go in together and help Mr. Gao turn off the equipment.”

Gao Yongming felt sad, but had no choice but to walk into the production factory together.

Tuqi saw Gao Yongming’s ugly face and had concluded that Loongson International had used the photolithography machine privately. As long as he reported it to the headquarters, perhaps the mystery of Qingzhou chip production would be solved.

When he walked into the dressing room, put on his dustproof clothes and opened the isolation door of the clean room of the lithography machine, he was stunned for a few seconds.

Empty!

The devices are all powered off

“how so?”

Tucci couldn’t believe his eyes and walked in to check the equipment.

Lithography machine has no production temperature

Production materials have not been reduced

The historical data of each equipment also shows that there was no production during this period.

Gao Yongming silently exited the clean room, returned to the locker room and took out his mobile phone. There were three WeChat messages from Feng Chengming on the notification bar.

It turned out that when they entered the park, Feng Chengming had just finished packaging the bare chips and had packed up the place.

When Li Zhengde stopped Tucci, one of Feng Chengming’s students was in the monitoring room, saw the picture and ran to report

After learning the news, Feng Chengming led the students to another exit and went straight to Gao Yongming’s office.

Li Zhengde and Gao Yongming’s short delay allowed them to escape smoothly

Fortunately, it was winter, and there were only five semiconductor silicon wafers. The temperature of the equipment quickly cooled down when it was running, and Tucci did not notice any abnormalities.

Seeing that Tucci could not find any clues, more than a dozen Dutch engineers also walked into the clean room to look for the missing areas.

Tonight’s Loongson International was too suspicious, they had to focus on checking

But after checking around, I found that the lithography machine did not start tonight, and the raw materials were not lost, and even the hexamethyldisilazane gas was not reduced.

“this…”

Because he was justified, Gao Yongming snorted coldly and said:”Mr. Tucci, I think you need to give me a perfect explanation. There is no sign of illness in your current appearance.””

“Boss, Vice President Li was sent to the hospital. I just checked the surveillance system and found that Engineer Tucci pushed him to the ground and knocked him on the head.”

Another vice president quickly reported

While speaking, he winked at Gao Yongming, which made the latter immediately realize that he was just putting on a show.

We can take this opportunity to put pressure on the Dutch ASML company to clear up these dozen live surveillance personnel.

Tucci’s face instantly turned pale, and the other Dutch engineers were also confused. They pushed the person to the hospital. Do you want to be so violent?

“Mr. Gao, please listen to my explanation…” Tucci was about to explain, but Gao Yongming snorted:”No need to explain, I will explain the situation to your boss. I am drunk and need to rest. If you like to check, then you can continue to check.”

After finding an excuse, he immediately returned to his office

Because he is a Qianyi Group, his office has a private room, and no one will doubt his motives for returning to the office.

Returning to his boss’s office, he immediately locked the door. Feng Chengming, who was hiding in the back room, saw that it was Gao Yongming and quickly came out to announce the good news:

“Done! The yield rate of these five semiconductor silicon wafers produced by Longxing Technology has increased by 11% to 97%, and the performance of the bare wafers produced has been slightly improved. The power consumption has dropped by 1W and the performance has increased by 10%. This is unprecedented. An improved version of semiconductor silicon wafer!”

“What? ? ?”

Gao Yongming raised his voice���ask

He had drunk too much tonight, and now he was completely groggy

Hearing that the yield rate is 97% and that chip performance can be improved through silicon wafers, he is now even more confused.

“Shh!”

Feng Chengming made a shushing gesture and continued:”It’s true, we have tested it, and the performance of this batch of chips is not an exception, but has improved.””

“I guess…”

“The problem comes from the semiconductor silicon chip!”

“Grass!”

Gao Yongming was completely drunk with alcohol and continued to shout:”New process semiconductor silicon wafers, Chen Xing, you are so awesome.”……”

“Plop——”

After only half of the last awesome words, he couldn’t bear it anymore and fell to the ground and fell asleep, still muttering:

“New process silicon wafer…”

“Chen Xing, I want to order one million tablets, no, no, I want ten million… I want… I want… I want to continue to order……”

(End of this chapter)