Chapter 293 Ten Production Lines
Time has unknowingly come to April.

In the Tengger Desert, there was a sudden heavy rain.

That’s right, it was a heavy rainstorm.

In the newly installed farm office park, Shi Tiansheng, who was about to go to the farm, was stunned by the sudden heavy rain.

“It’s raining heavily.”

Li Wanli, a local, also stood at the door and lit a cigarette, puffing away slowly. Since cigarettes, lighters and other items that may cause fires were not allowed into the farm work area, he could only smoke one cigarette inside the office park.

“It’s really weird. There’s never been such heavy rain at this time of year in previous years.”

“Old Li, when the rain stops, you can take people to plant soybeans on the 153 acres of East 500.”

“Okay… huh…” A puff of smoke came out of Li Wanli’s nostrils.

Shi Tiansheng ignored him, but picked up his mobile phone and called Hu Yudong, the leader of the water management team.

beep…

“Hey, Shichang, what can I do for you?”

Shi Tiansheng didn’t talk nonsense and asked directly, “How is the situation of your underground reservoir?”

“Of the five underground reservoirs we planned, only two are now operational, and the remaining three are still under construction and are expected to be completed in July or August this year.”

“Alright! You guys hurry up and stock up on water!”

“I know. I have just instructed my subordinates to prepare emergency reserves.”

“That’s good.”

As a small town surrounded by desert, in order to solve the water problem, the farms in Hejiajing Town must build underground reservoirs to store water.

These underground reservoirs are built on one side of the five employee communities, and include underground reservoirs, temporary water storage tanks, sewage treatment rooms and water distribution rooms.

The construction of these underground reservoirs is actually very simple, because they cover a very large area and are composed of cubes with a side length of 10 meters.

Each reservoir has a total of 500 cubic containers, which are buried underground and can store about 50 cubic meters of fresh water. The five underground reservoirs can store 250 million cubic meters of fresh water.

The amount of water allocated to Hejiajing Town by Minqin County is only 300 million cubic meters per year.

Originally, the water was to be delivered in batches until next month, but there was a sudden heavy rain. When the sites of these five underground reservoirs were selected, consideration was given to collecting natural precipitation in the surrounding areas, so their locations are all in the surrounding low-lying areas.

Two of them are located next to the abandoned river channel of Shiyang River. With the sudden heavy rain, the abandoned river channel showed signs of flooding.

The pump is at full power.

The muddy water that gathers in the abandoned river channel is continuously pumped into the sedimentation tank, then processed through the water purifier, and the resulting pure water is stored in large tanks in the underground reservoir.

This time the heavy rain lasted for more than three hours.

The rainfall was about 87 mm.

Although it is not as heavy as the rainfall of several hundred millimeters in the south, it is already a very heavy rain for the Tengger Desert.

In fact, the sudden change in global climate has indeed affected East Asia.

However, East Asia is becoming hotter and wetter, especially in the previously dry and rainless areas such as southern Mobei, southeastern Gansu, and the Loess Plateau. Since April, several consecutive heavy rainstorms have occurred.

In the Yangtze River Basin in the south, the rainfall is also much higher than in previous years. If it weren’t for the good water conservancy projects in recent years, this heavy rain in the south would have easily caused problems.

The rain just stopped in the afternoon.

Shi Tiansheng drove to the east side of the farm.

The reason they came here was naturally because something happened on their farm.

The pickup truck drove on the compacted dirt road for about two hours.

When they stopped, the temporary dirt road they had previously rolled out with a roller had been washed away by water for several hundred meters, so they had no choice but to get off the car and walk.

The driver was surprised: “Damn! There’s a lake.”

Li Wanli looked at the sparkling lake in front of him and said, “This should be the ancient lake in the lower reaches of the Shiyang River.”

“Has the upstream reservoir released water?”

“I don’t think so! How could they just release water? If there is a flood, they can’t bear the responsibility.”

Shi Tiansheng observed the lake with a telescope. Several abandoned river channels that were floating were continuously inputting water from upstream.

He looked at the sky to the south. It was still covered with dark clouds. Obviously, it was still raining heavily there.

According to the weather forecast, the entire Minqin County will experience localized showers in the next three days, and the showers may suddenly bring heavy rain.

And the precipitation area is relatively large.

As Hejiajing Town is the end of the downstream, the rainwater that is not intercepted by the upstream will definitely converge into the nearby ancient lake ruins one after another.

The area of ​​the lake in front of us is not large, but looking at the continuous influx of river water, the area is expected to continue to expand.

He took out a map and looked through some historical research materials, and found that the maximum area of ​​this ancient lake was very large. At its largest, its area could reach 1.6 square kilometers.

Even in the early days of the founding of the People’s Republic of China, the remaining Qingtu Lake of the ancient lake had an area of ​​about 100 square kilometers. Then around 1959, Qingtu Lake completely dried up. Ecological restoration began in 2013, and the water area has now recovered to about 28 square kilometers.

Now this small lake is just a seasonal lake.

But if the rainfall in the northwest continues to remain the same as this year, Qingtu Lake may continue to expand.

He thought about it for a while and felt that he couldn’t just deal with the matter casually. After all, it was difficult to predict the future situation. If Qingtu Lake expanded rapidly in a dozen years, the low-lying areas of the farm near Qingtu Lake might be quickly submerged.

For example, on the road they just drove over, many of the sand-pressed roads were washed away by the heavy rain, which greatly affected farm operations.

He referred to the extreme lake area of ​​the ancient Qingtu Lake, took out the farm planning map, roughly drew the outline of the ancient Qingtu Lake on it, and then added several existing low-lying ancient river channels.

Took photos and videos with a drone.

“Let’s go!”

“it is good.”

Although the restoration of the ancient lake is a good thing, they must make some preparations in advance. After all, they must suspend the construction of farms near the ancient lake area to avoid being flooded.

Of course, Shi Tiansheng couldn’t make a decision on this matter alone. He had to rush back to write a report to Manager Li of the Liangzhou branch, asking them to communicate with the local authorities as soon as possible, and it would be best if they could replace the desert.

If Qingtu Lake really continues to expand, then the Qingtu Lake Nature Reserve will certainly expand as well, which will inevitably overlap with the farm area.

When the pickup truck returned to the farm office park in Hejiajing Town, outside the car window there was a scene of lonely smoke rising from the desert and the setting sun over the long river.

The soybeans that were planted earlier have already sprouted over a week ago. After today’s heavy rain, the sprouts are growing even more vigorously. …

In the Western High-tech Park of Minqin County.

The cooperation projects between Minqin Group and more than a dozen domestic semiconductor equipment manufacturers have also produced many results.

Thanks to the efforts of scientific researchers, the production line construction and adjustment of the 10-nanometer glue injection machine has been completed, and standards for various technologies and components have been established.

The first batch of 10-nanometer injection machines, totaling 10 units, are being transported directly to Jiangcheng, the headquarters of Yangtze Memory Technologies, by airship.

At the same time, other equipment and consumables for the semiconductor production line have also been completed, and can be assembled into about 10 chip production lines.

Jiangcheng, inside the factory building of Yangtze Memory Technologies’ headquarters.

Looking at the glue injection machine that had just been transferred from the nearby temporary airship airport, its chairman Chen Nanxian could hardly suppress his smile.

“Xiu Kun, can we install the equipment in the factory?”

Vice President Liu Xiukun replied very seriously: “Don’t worry, Mr. Chen, I have been watching the factory for more than a month and can install the equipment at any time.”

“Good! Very good!” Chen Nanxian clenched his fists and couldn’t wait any longer: “Start installing the equipment and complete the debugging work as soon as possible.”

“Yes.”

The integrated glue injection machine is smaller than a 20-foot container and can be placed inside a 20-foot container.

After falling off the tractor, the container door was opened and several staff members quickly released some of the gas in the cushioning airbags. Then a small tractor hooked the traction slot of the glue injector and carefully pulled the glue injector out.

The bottom of the glue injection machine has specially designed rolling pulleys and very good shock absorbers to prevent vibration from affecting the components inside the equipment.

Of course, the production process of the glue injection machine is not difficult, and the internal components are not too precise. The few components with relatively high requirements are mainly the silicon wafer and glue injection template positioning system. This system is related to whether the glue injection point array can be accurately dripped on a specific silicon wafer position, so the requirements are relatively high.

However, the glue injection template, which is the core component of the glue injection machine, was not delivered together with the glue injection machine.

The glue injection template is something that needs to be produced separately.

Currently, Yangtze Memory has built a factory specifically for the production of injection templates. This template requires the use of silicon carbide nanotubes with specific apertures, which are spliced ​​together one by one. In order to ensure precision and accuracy, various scanning equipment that can see nanometer dimensions must be used throughout the assembly process.

Therefore, the radiation level of this template assembly center is very large. In order to avoid unnecessary health effects on personnel, the assembly center adopts a relatively high level of automated assembly solution, and the control room is also wrapped with thick lead plates.

With ten glue injection machines in place.

The staff in the factory work in three shifts, debugging the production line day and night.

Of these ten production lines, five produce Yangtze Memory’s own new generation of memory chips, and the remaining five are used to test logic chips.

HiSilicon Semiconductor has sent people over to bring a high-performance communication chip they designed, and they are working with Yangtze Memory’s template assembly center to assemble the corresponding glue injection templates.

This communication chip is just a trial run. If it is confirmed that there are no major problems with the process, Huafen Company will immediately hand over the foundry of mobile phone chips to Yangtze Memory.

Both parties are very concerned about this test production, but the information has not been announced.

Obviously, both parties are aware that announcing the information in advance will not benefit either party at all and may even backfire.

After all, semiconductors are the only remaining advantageous industry for European and American forces.

If this industry fails again, the problem will be very serious and may even lead to a major economic collapse in America.

Therefore, Yangtze Memory has already told Huafen Company in advance to keep the information confidential internally and delay the leakage of the news as much as possible.

These days, Yangtze Memory has imported a large number of various semiconductor production equipment that cannot be produced domestically for the time being. At the same time, it has also required domestic semiconductor equipment manufacturers to complete the localization of related equipment as soon as possible.

For orders for these devices alone, foreign semiconductor equipment manufacturers received more than 20 billion yuan, while domestic semiconductor equipment manufacturers received nearly 30 billion yuan.

Fortunately, the most critical lithography machines and photoresists have been replaced by glue injection machines and magnetic photoresists. Although the performance of other domestic semiconductor equipment varies, if foreign supply is completely cut off, domestic production can still be replaced.

the end of April.

The production line debugging work, which lasted for nearly four weeks, has finally been completed.

Chen Nanxian, Yang Shining and several senior executives of Pollen Company were all in the office building on one side of the factory. Although they were talking and laughing, they were obviously absent-minded.

Time slips away quietly.

Until night falls, the entire factory is still brightly lit.

A burst of hurried footsteps sounded from outside the office. Everyone’s heart tightened and they held their breath.

bang bang bang…

“Come in.” Chen Nanxian took a deep breath.

The door slowly opened.

Li Bo, the factory manager in charge of chip production, walked in with a red face and said, “Chairman, the first batch of trial production of communication chips has been completed. This is the chip performance test report just completed by the testing team brought by Pollen Company. Please take a look.”

“So fast?” An executive of Pollen Company was a little surprised.

Yang Shining explained with a smile: “The new process is different from the previous photolithography process, especially this single-layer logic chip, the production speed is more than dozens of times faster than the old process.”

Others took the test report and read it carefully.

“What a high yield rate, around 90%?”

“The yield rate is so high at the beginning. After later debugging, it may be close to 95% or more.”

“Very good. The performance of the communication chip is better than expected.”

The communication chips they designed have a certain amount of redundancy in order to avoid defects in the chip production process that could render the chip completely scrapped.

This is also one of the advantages of the glue injection process.

After all, no matter how powerful the photolithography process is, various errors can easily occur when light waves hit the tin droplets, which can cause various defects in the circuit.

This is also why mobile phone chips are often divided into specifications such as i9, i8, and i7, because the core chips of mobile phones are often designed into a nine-square grid layout. Even if one of the grids has a problem, the other grids can still work normally, but the overall performance will decrease.

Chips produced by the injection molding process have fewer defects. As long as the injection molding template is well produced, the yield rate will generally not be lower than 95%.

The executive of the Pollen Company who led the team put down the report in his hand and said solemnly: “Mr. Chen, we have to take the chip and the report back to the headquarters immediately.”

Chen Nanxian was not surprised by this, he nodded immediately: “Okay, but please keep it confidential.”

“Please rest assured, Mr. Chen. The people who came here this time were carefully selected. We promise not to tell anyone about this. As soon as we return, we will immediately enter the fully enclosed factory area.”

“That’s good, I wish you a safe journey.”

The people from Pollen Company quickly rushed back to Pengcheng with the relevant reports and the batch of freshly-made chips.

(End of this chapter)