Chapter 108: Clean Room

"This quartz crucible coating, we've done it before." Yao Dao's master, Bai Zhimo, drank a little wine and said: "When we first made quartz heating pipes, we used quartz coating techniques. The Y991 coating used is also to improve the high temperature resistance. The difficulty of this technique lies in the ratio of aqueous solution and spraying technique. The ratio of aqueous solution directly affects the performance of the crucible, and a large number of repeated tests are required here. As for sprayingβ€”"

Bai Zhimo smacked his lips and sighed: "If you want to produce quartz crucibles for electronic-grade single crystal furnaces, the surface of the spray coating must be very flat and uniform. This requires that impurities and fine dust in the air must be isolated, and there is probably no other way than a clean room. ”

Zhou Shuo was stunned, he didn't expect that even the production of quartz crucibles would be so difficult, and sighed: "The electronics industry is really the closest industry to the laboratory, and dust-free is simply the most basic production condition." ”

The so-called clean room, that is, the dust-free workshop, is mainly designed and built for the production of products that are sensitive to environmental pollution. Of course, this is not to say that the clean room is absolutely dust-free, but that there is a certain amount of dust less. According to the amount of fine dust in each cubic meter, the clean room is divided into six levels to distinguish the degree of dust-free.

Zhou Shuo nodded vigorously and said: "It just so happens that the monocrystalline silicon workshop also requires the use of a clean room, one sheep is to drive, and two sheep are also to be released." Master Bai, you first do some research on the aqueous solution ratio of barium hydroxide, and I am responsible for the construction of the clean workshop. However, Huaguang Factory can't be the master at present, so we can only grieve you to test it in the keyboard factory. ”

Bai Zhimo smiled disapprovingly, nodded and agreed.

Zhou Shuo turned his head to Yao Dao and said: "Although the imitation of the monocrystalline furnace is not in a hurry, it is the key to determine whether we can acquire Huaguang Factory by seizing the time to produce electronic-grade monocrystalline silicon." The technicians sent by the Japanese side will arrive next week, and whether they can thoroughly understand the techniques depends on Yao Gong. ”

Yao Dao sat up straight and said hesitantly: "Don't worry, I will definitely not pull Principal Zhou's back." ”

Zhou Shuo patted him on the shoulder and said affirmatively: "I believe in Yao Gong's promise. ”

Although the age difference between the two was doubled, no one felt that such words came out of his mouth at this time, and there was a trace of disobedience.

Ono Oura's plane slowly docked at Taoxian International Airport in Bohai Province, and he pushed four large suitcases and walked out of the pick-up channel with great difficulty.

"Ono-san, let's meet again!" Zhou Shuo shook his arm, drawing his attention.

"Zhou Sang, long time no see!" Ono Oura bowed slightly, cheered up and said, "I will ask you for more advice on the next work." ”

Zhou Shuo waved his hand and said with a smile: "It's to ask Ono Sanduo to ask for advice." ”

As he spoke, he pointed to the people around him and said, "This is Mr. Yao Dao, he will cooperate with your work specifically, and I hope you can cooperate happily." Zhou Shuo pointed to a woman in her forties next to him and said, "This Ms. Wang Yu will be your translator in China during this time." ”

"Yao Daosang, Ms. Wang Yu, hello!" Ono Oura greeted the two of them one by one.

Wang Yu followed by and translated, and Yao Dao immediately grabbed Ono Oura's hand enthusiastically and shook it twice. Excitedly: "Mr. Ono, I've been waiting for you for a long time. If you have any problems with your work in the future, please give me more advice! ”

Ono Oura felt Yao Dao's enthusiasm, and couldn't help but smile: "Please rest assured Yao Sang, we will definitely cooperate happily." ”

The three of them exchanged pleasantries for a while, and Zhou Shuo and Yao Dao saluted Ono Oura. Yao Dao whispered as he walked: "I think this little wild devil is quite easy to talk to, and he is also very polite." ”

Zhou Shuo peeked at Ono Oura, shook his head, and was indifferent.

Coming back from the provincial capital, Zhou Shuo directly pulled people to the side of Huaguang Factory. Wu Changgeng, as the secretary of the district party committee, will never refuse to attract investment regardless of whether Huaguang Factory is the most popular. What's more, he and Zhou Shuo also have a tacit understanding, and Zhou Shuo asked him to approve a piece of land next to Huaguang Factory a year ago, ready to be used to build a monocrystalline silicon production workshop.

Ono Oura looked at the factory area that was under construction, and said: "Zhou Sang, your plant has not been built yet, and my installation and commissioning work cannot be carried out!" ”

Zhou Shuo led the way from the front and said with a smile: "Ono-san, please rest assured, what is currently under construction is other facilities, and the plant of the monocrystalline furnace has already been built." ”

Ono Oura said solemnly: "The monocrystalline furnace plant is built on an earthquake-proof foundation, and if the quality of the monocrystalline furnace is affected due to the construction conditions, I can't be responsible!" ”

"Rest assured, Ono-san, our building specifications are absolutely up to standard." Zhou Shuo led him behind a wall, and the brand-new steel structure factory building had been erected. Although the hasty details can still be seen, the entire main project has indeed been completed.

Fortunately, his equipment only has ten monocrystalline furnaces, which is often two or three hundred monocrystalline furnaces like the photovoltaic industry in later generations. Even if you work overtime, the factory will never be able to build in the more than half a month before and after the Chinese New Year.

This factory is not big, with a total area of only about 300 square meters, but the decoration inside is very good. The ceilings are topped with long fluorescent tubes, epoxy floors poured with cement, large windows that are fully enclosed, and a muffled, humming central air-conditioning.

After the air conditioning, lighting, dust removal and conveying equipment are complete, such a workshop alone cost Zhou Shuo more than 600,000 yuan.

Even with Ono Oura's critical eye, after measuring various data, he had to nod and say: "Yes, Zhou Sang's workshop has indeed been built in accordance with the technical requirements, and has met the basic requirements of monocrystalline silicon production. ”

"Then what are you waiting for, let's hurry up and install a single crystal furnace, shall we?" Yao Dao said impatiently on the side.

Wang Yu translated Yao Dao's words, Ono Oura nodded, took out a set of equipment from the suitcase, and started to work on his own.

Yao Dao hurriedly shouted at the door, beckoned, and hula ran over from outside.

As soon as these people entered the workshop, they surrounded Ono Oura.

"What are you doing here?" Ono Oura was startled and hurriedly asked.

Yao Daoyi snatched the equipment from Ono Oura's hand, and said with a hippie smile: "Mr. Ono, you are a distinguished guest, distinguished guest!" Let's do the physical work or something, you can just give a few words of advice! ”

Ono Oura was stunned, but he was also happy, so he nodded and said, "Okay, but these devices are very sensitive, you should be careful with them." ”

"Don't worry!" As soon as Yao Dao showed the device to the people next to him out of Ono Oura's sight, someone took a pen and paper and began to copy the nameplate on the device.

Under the command of Ono Oura, more than a dozen workers began to conduct environmental tests in an orderly manner. Depending on the location of the clean room, the dust-free conditions are also different. The workshop must be arranged on a case-by-case basis, with the monocrystalline furnace installed in the cleanest working area. Then, according to the direction of the airflow, it is necessary to divide the transportation area, the preparation area, the clean area and so on.

With the completion of the measurement work, the equipment was also transported in piece by piece. Although the five monocrystalline furnaces of the 908 project have been booked, after all, no specific agreement has been reached.

"Reducer, Tsubaki manufacturing." Yao Dao took the list of goods and began to count them one by one.

"Ball screws, THK; Putters, RPCs; Furnace flange, KOREA......"

The more Yao Dao looked at it, the more he frowned, and when he saw Zhou Shuo coming over, he couldn't help but say angrily: "Toshiba ceramics are really not a thing, they are a system integrator, and none of the mechanical parts of the single crystal furnace are made by them at all." But if you change hands, you will earn us ten times the profit, which is really TM black! ”

Zhou Shuo shook his head when he heard this, and said seriously: "These hardware devices are just like that, it's not that they can't find alternatives in China." But if Yao Gong despised them because of this, it would be a big mistake. After the system is integrated, how to analyze the thermal field of this set of equipment, how long to heat, how high the temperature, how much speed of the pusher, what is the speed of lifting, the dynamic and static balance of the seed crystal, the influence of nitrogen concentration and air flow on the crystallization rate......"

He couldn't help but sigh: "In the electronics industry, there has never been an open mouth to introduce technology." If you don't work hard, you'll always get just a production line. ”

The more Yao Dao listened, the more serious his expression became, he paused, nodded and said, "I understand what Principal Zhou means, we not only have to know what Lu Dao does, but also know what Lu Dao does for Lu Dao." Don't worry, if you don't drain the oil and water from this little wild belly, I will never put him back! ”

Zhou Shuo patted him on the shoulder and smiled with relief: "Yao Gong can have this determination, I will wait for your good news." ”

After speaking, he suddenly thought of something and asked, "Yao Gong, don't you have to worry about things in Huaguang Factory?" ”

"Hey, don't mention it." Yao Dao said hatefully: "I had a quarrel with the head of the cattle factory a few years ago, and I have been suspended from my job by him. ”

"Yes, yes, I will definitely do a good job of stabilizing the factory, please rest assured Mayor Jiang!" The head of the cattle factory hung up the phone in a sweat, wiped his sleeve on his forehead and ran out.

The young man who had just been assigned to the factory director's office saw him running out, and hurriedly took down his woolen coat from the hanger and hurriedly chased after him.

"Director, your coat!"

When the cattle factory heard the call, he slowed down. When the young man caught up with him, he stretched out his hands and put on his coat.

The young man asked curiously: "Factory director, why are you so busy?" ”

The head of the cattle factory said angrily: "What are you doing? Go put out the fire! ”