Chapter 108 Clean Room
"We have done this quartz crucible coating before." Yao Dao's master Bai Zhimo said while drinking a wine: "We used quartz coating technology to build quartz heating pipes. The Y991 coating used is also to improve high temperature resistance. The technical difficulty here lies in the ratio of aqueous solution and spraying technology. The ratio of aqueous solution directly affects the performance of the crucible, and a lot of repeated tests are required here. As for spraying-"
Bai Zhimo smacked his lips and sighed: "If you want to produce a quartz crucible for electronic-grade single crystal furnace, the surface of the spray coating must be very flat and even. This requires that you must isolate impurities and dust in the air. There may be no other way except for the clean room."
Zhou Shuo was stunned for a moment, not expecting that even the production of quartz crucibles was so difficult, and sighed: "The electronics industry is really the industry closest to the laboratory, and Wuchen is simply the most basic production condition."
The so-called clean room, that is, dust-free workshop, is mainly designed and built to produce products that are sensitive to environmental pollution. Of course, this does not mean that there is absolutely no dust in the clean room, but that the dust is less than a certain level. According to the amount of dust in each cubic meter, the clean room is divided into six levels to distinguish the dust-free level.
Zhou Shuo nodded fiercely and said, "It just so happened that the monocrystalline silicon workshop also requires the use of a clean room. One sheep is to drive, and two sheep are also to put it in. Master Bai, you first do some research on the aqueous solution ratio of barium hydroxide. I am responsible for the construction of the clean workshop. However, we can't make the decision at the Huaguang Factory at present, so we can only apologize for you to conduct the experiment in the keyboard factory."
Bai Zhimo smiled discontently and nodded in agreement.
Zhou Shuo turned to Yao Dao again and said, "Although there is no hurry to imitate the single crystal furnace, it is important to seize the time to produce electronic-grade single crystal silicon, which is the key to whether we can acquire Huaguang Factory. The technicians sent by Japan will arrive next week. Whether we can fully understand the technology depends entirely on Yao Gong."
Yao Dao sat upright and said, "Don't worry, I will definitely not pull the back of Principal Zhou."
Zhou Shuo patted his shoulder and said affirmatively: "I believe in Yao Gong's promise."
Although the two were twice as old, no one felt that such words were inconsistent from his mouth.
The plane on Ono Daiura slowly stopped at Taoxian International Airport in Bohai Provincial Capital. He pushed four large suitcases and walked out of the pick-up channel with difficulty.
"Onosang, we're meeting again!" Zhou Shuo shook his arms and attracted his attention.
"Zhou Sang, I haven't seen you for a long time!" Ono Oura bowed slightly and cheered up, "I'll give you more advice on the next work."
Zhou Shuo waved his hand and smiled, "I'm asking Ono Sanduoduo for advice."
As he said that, he pointed to the people around him and said, "This is Mr. Yao Dao. He will cooperate specifically with your work. I hope you can cooperate happily." Zhou Shuo pointed to a woman in her forties and said, "This Ms. Wang Di will be your translator during this period in China."
"Yao Daosang, Ms. Wang Di, hello!" Ono Oura greeted the two of them one by one.
Wang Di followed and translated a sentence. Yao Dao immediately grabbed Ono Oura's hand enthusiastically and shook it twice. He said excitedly: "Mr. Ono, I have been waiting for you for a long time. If you have any questions in your future work, please give me some advice!"
Ono Oura felt Yao Dao's enthusiasm and couldn't help but smile: "Please rest assured Yao Sang, we will definitely have a happy cooperation."
The three of them exchanged greetings for a while, Zhou Shuo and Yao Dao saluted Ono Oura. Yao Dao whispered as she walked: "I think this Ono Japanese is quite easy to talk to, and they are very polite."
Zhou Shuo secretly looked at Ono Daura, shook his head, and said nothing indifferently.
After returning from the provincial capital, Zhou Shuo directly pulled the person next to Huaguang Factory. As the district party secretary, Wu Changgeng would never refuse to attract investment. Moreover, he and Zhou Shuo were also tacitly in line with each other. Before the New Year, Zhou Shuo asked him to approve a piece of land next to Huaguang Factory to prepare for the construction of a monocrystalline silicon production workshop.
Ono Oura looked at the factory area where the construction was being built in full swing and said, "Zhou Sang, your factory has not been built yet, and my installation and debugging work cannot be carried out!"
Zhou Shuo led the way from the front and smiled: "Please rest assured ono Sang, the construction of other facilities is currently under construction, and the factory building of the single crystal furnace has been built."
Ono Oura said seriously: "The factory building of the single crystal furnace must be built on a earthquake-proof foundation. If the quality of the single crystal furnace product is affected due to the construction conditions, I cannot be responsible!"
"Please rest assured that our building specifications are absolutely up to standard." Zhou Shuo led him behind a wall, and the brand new steel structure factory building had already stood up. Although the hasty details can still be seen, the entire main project has indeed been completed.
Fortunately, his equipment only has ten single crystal furnaces. If it were the scale of two or three hundred single crystal furnaces like the photovoltaic industry in later generations, even if it worked overtime, the factory would definitely not be able to be built in more than half a month before and after the Chinese New Year.
This factory is not big, with an area of only about 300 square meters in total, but the decoration here is very good. The high ceiling is inlaid with long fluorescent tubes, an epoxy resin floor poured with cement, a large fully enclosed glass window and a low buzzing central air conditioner.
After the air conditioning, lighting, dust removal and transmission equipment were fully equipped, Zhou Shuo spent more than 600,000 yuan on such a workshop alone.
Even with Ono Oura's picky vision, after testing various data, he had to nod and said: "Yes, Zhou Sang's workshop has indeed been built according to technical requirements and has met the basic requirements for monocrystalline silicon production."
"What are you waiting for? Let's install a single crystal furnace as soon as possible?" Yao Dao said impatiently.
Wang Di translated Yao Dao's words, Ono Daura nodded, took out a set of equipment from his suitcase, and started working on his own.
Yao Dao quickly shouted at the door, waved his hand, and ran over fourteen or fifteen young men from outside.
As soon as these people entered the workshop, they surrounded Oura Ono.
"What are you doing?" Ono Oura was startled and asked quickly.
Yao Dao snatched off the equipment in Ono Oura's hand and said with a smile: "Mr. Ono, you are a distinguished guest, a distinguished guest! Let us do all physical work, just give me some advice!"
Ono Oura was stunned for a moment, and was happy to be idle, so he nodded and said, "Okay, but these devices are very sensitive, you should be careful when using them."
"Don't worry!" Yao Dao exposed the equipment to the person next to him in a place where Ono Oura's sight was out of sight, and someone took paper and pen and started copying the nameplate on the equipment.
Under the command of Ono Daiura, more than a dozen workers began to conduct environmental testing in an orderly manner. Depending on the location of the clean room, the dust-free conditions are also different. The workshop must be arranged according to the specific situation and the single crystal furnace is installed in the cleanest work area. Then, the transportation area, preparation area, clean area and other different areas must be divided according to the direction of the airflow.
As the measurement work was completed, the equipment was transported in one by one. Although the five single crystal furnaces of the 908 project were booked out, a specific agreement has not been reached after all. With Zhou Shuowu's personality of making the best use of it, he is not afraid to use it first.
"Reducer, manufactured by Tsubaki." Yao Dao took the list of goods and began to count them one by one.
"Ball screw, THK; push rod, RPC; furnace body flange, KOREA..."
Yao Dao frowned the more he saw Zhou Shuo coming, and when he saw Zhou Shuo coming, he couldn't help but say angrily: "Toshiba Ceramics is really not a thing, he is a system integrator, and the mechanical parts of the single crystal furnace are not the same as they made. But if you turn it over, you will have to make ten times the profits. It's really a tm black!"
Zhou Shuo shook his head and said seriously: "These hardware devices are just that. It is not impossible to find alternatives in China. But if Yao Gong despises them for this reason, it would be a big mistake. The key here is Toshiba Ceramics' software. After the system is integrated, how to analyze the thermal field of this equipment, how long to heat, how high the temperature, how fast the push rod rotates, how much lifting speed, the dynamic and static balance of seed crystals, the impact of nitrogen concentration and airflow on crystallization rate..."
He couldn't help but sigh: "In the electronics industry, you can bring in technology without opening your mouth. If you don't work hard to study, what you get will always be just a production line."
The more Yao Dao heard the more serious his expression became, paused and nodded, "I understand Principal Zhou's meaning. We must not only know how to do it, but also why we do it. Don't worry, I will never put him back if I don't squeeze the oil and water in Xiaoye's belly!"
Zhou Shuo patted his shoulder and smiled with relief: "If Mr. Yao has this determination, I will wait for your good news."
After saying that, he suddenly thought of something and asked, "Mr. Yao, don't you care about your affairs in Huaguang Factory?"
"Hi, don't mention it." Yao Dao said hatefully: "I had a big fight with Director Niu a few years ago. I have been suspended from my salary."
"Yes, yes, I will definitely do a stable job in the factory. Please rest assured Mayor Jiang!" Director Niu hung up the phone with a sweat, and wiped his sleeves 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 quickly took off his woolen coat from the hanger and hurriedly chased after him.
"Manager, your coat!"
When Director Niu heard the call, he slowed down. When the young man caught up with him, he put on his coat with both hands.
The young young man asked curiously: "Manager, why are you so busy?"
Chapter completed!