Courtyard House: I'm an engineer, and a fairy godmother transferred me to a different position.

Under Liu Guangqi's careful guidance, they gradually mastered the essentials of the production line technology and were able to handle most of the problems in the workshop.

Occasionally, when a tricky problem arises, a phone call to Liu Guangqi will bring him to the scene to assist in handling it.

Gradually, Liu Guangqi visited the Hongxing Factory less and less.

He spent most of his time in the research department of the ministry, where affairs no longer required his constant attention.

The field of vision also broadened as a result.

An electric oven is just the first step.

What he is truly concerned about is the toughest challenge in the current domestic machine tool industry: high-precision CNC machine tools.

In this era of industrial boom, machine tools were called the "mother of industry" and were a key measure of a nation's manufacturing capabilities.

The higher the precision of a machine tool, the higher its technological ceiling in the industry.

The seemingly technical term "stereotransistor" is actually the core of high-precision CNC machine tools.

It can be said that to build truly cutting-edge machine tools, this technology must be mastered first.

If successful, the domestic machine tool manufacturing industry will leap to a whole new stage, and complex curved surfaces and precision machining will no longer be just theoretical concepts.

As a former mechanical engineering scholar, Liu Guangqi has a thorough understanding of the principles and technological development of 3D transistors.

But the difficulty lies in—

How can we use the existing technology and materials of this era to turn it from theory into reality?

As a researcher, he knows that many innovations cannot be achieved solely through knowledge and theory; the conditions of the times are often the most difficult barriers to overcome.

However, Liu Guangqi was not anxious.

He knew he was not yet in dire straits – at least the Model 2654 precision machine tools ordered from the northern neighbor had already been shipped.

He understood the significance of this equipment better than anyone else: it was a key piece of equipment in the other party's industrial system, and even decades later, it was still playing a role in many precision fields.

With it, not only can the processing accuracy of existing products be improved, but it will also provide crucial equipment support for the trial production of 3D transistors.

So, Liu Guangqi investigated the current situation of domestic machine tool factories, deduced a suitable transistor process path for the current conditions, and waited for the arrival of the 2654 model machine tool.

That morning, he had just stepped into the research department office when the phone rang.

The caller was Director Chen from the Foreign Trade Department, whose tone was clearly excited:

"Comrade Guangqi, the Model 2654 machine tool from the Russians has arrived and is being unloaded at the warehouse. Come and take a look!"

Several heavy trucks were parked outside the Ministry of Foreign Trade's warehouse, and workers were carefully unloading precision equipment from the truck beds.

The most eye-catching one is a large machine tool with a gray paint finish and the foreign serial number "2654" engraved on its body, as solid as a small metal mountain.

A number of technicians and officials who had come after hearing the news gathered around, whispering among themselves:

"This huge thing... is it their latest machine tool?"

"Don't just look at the appearance; there's real technology inside."

Liu Guangqi walked through the crowd and went straight to the machine tool.

He raised his hand and lightly touched the cool outer shell; the metallic texture emanated from his fingertips—

This is the Model 2654 precision machine tool he had been waiting for, and it is one of the most advanced machining equipment currently available.

At this moment, the head of the opposing delegation walked over with a smile on his face:

"Liu, the machine tool has arrived on schedule. I hope it will be helpful to your research."

After the machine tool was handed over, Liu Guangqi temporarily placed it in the experimental workshop of the First Ministry of Machine Building.

Two days later, the transistor design drawings were completed, and the next step was to prepare materials for trial production.

It must be said that times have changed. Before Liu Guangqi took this position, he had to go through layers of approval to push forward any project. Now, as the deputy director of the research department, the allocation of necessary materials and personnel is almost unimpeded. Only now does he truly understand what it means to control the lifeline of research and development in a region.

Before long, the materials and manpower coordinated by the ministry arrived one after another, and they even specially invited two senior scholars from Tsinghua University.

"Guangqi, oh dear, look at my memory, I should be calling you Director Liu!" Professor Yin, with his cheerful personality, greeted him with a smile and a joke, but his eyes revealed a deep curiosity.

Professor Wang, standing to the side, was much calmer. He adjusted his reading glasses and looked directly at the blueprints spread out on the table.

"Is this the 3D transistor you mentioned?"

At a single glance, the two professors' breathing tightened slightly. They had initially thought these were just novel ideas, but the structural concepts presented in the drawings completely defied the prevailing understanding in the academic community.

"Theoretically speaking, the possibility of it being realized is very high." Professor Wang leaned on the edge of the table, examining each page carefully, becoming increasingly alarmed with each turn. "Guangqi, this... did you really figure this out yourself?"

Liu Guangqi simply smiled and said nothing more.

"Professor Wang, Professor Yin, theory must eventually be put into practice. The reason we invited you two here is to work together to make it a reality."

"Do it! Of course we have to do it!" Researchers of this era are driven by a strong spirit. At a single command, the entire team gets to work quickly.

It must be said that the two professors from Tsinghua University already held this mechanical engineering graduate in high regard. After some discussion, they unanimously agreed that the idea was quite feasible.

These days, efficiency is paramount; as long as the direction is feasible, it's put into practice immediately. This trial production was once again personally led by Liu Guangqi—no one in the entire team understands the internal principles and key processes of 3D transistors better than him.

As it turned out, the research and development process led by Liu Guangqi progressed exceptionally smoothly. After all, he possessed cutting-edge experience and technology, essentially retracing a well-established path.

As a result, the preliminary preparations, which would normally take one or two months to complete, were finished in just one week with his involvement. It is no exaggeration to say that Liu Guangqi could almost spot every minor operational oversight in advance.

This saved a lot of time that would otherwise have been spent on trial and error, investigation, discussion, and revision. After several such trials, as everyone discovered that the facts repeatedly confirmed his predictions, their initial surprise gradually turned into shock, and finally into complete conviction.

The two professors were completely stunned.

"Old Wang," Professor Yin leaned close to Professor Wang's ear and lowered his voice, "I feel like...we're not here to help, but more like to give a lecture?"

"Haha, if we can really develop a stereo transistor, what's wrong with being a student for a few days?"

Even so, limited by the technological conditions at the time, the first few rounds of experiments did not go smoothly. Ultimately, a chasm called "era" separated theory from practice.

The first batch of prototype transistors burned out immediately after being powered on due to inaccurate control of doping concentration; although the second batch was more stable, the current amplification factor was far from expected.

The atmosphere in the research room gradually became somber. Professor Wang, noticing the undisguised fatigue on Liu Guangqi's brow, couldn't help but offer some words of comfort:

"Guangqi, could it be that we've set our goals too high? How about we lower our standards a bit, make a usable model first, and then gradually improve it?"

These words expressed the sentiments of many technicians. A series of setbacks had almost worn down their enthusiasm.

"no."

Liu Guangqi's voice was soft, but resolute. He pointed to the weak curve on the recorder, his tone calm but unwavering:

"Teachers, a slight difference can lead to a huge difference. High-precision CNC machine tools require transistors to have zero error. If we compromise even a little now, the precision of the machine tools will fall behind in the future."

After he finished speaking, the entire research room fell silent. Any hesitation in everyone's hearts was instantly washed away by a surge of burning passion.

Yes, what exactly are they busy with?

The tireless struggle day and night is never just about fulfilling a mission, but about pursuing and breaking through!

Liu Guangqi stayed up all night, reorganizing and adjusting the plan.

As dawn broke, the team members dragged their weary steps into the laboratory, only to find Liu Guangqi already standing there, holding a brand-new stack of papers in his hand.

His eyes were red, but his gaze burned like a flame.

"Let's continue with the seventh round of experiments."

This time, no one hesitated.

Immediately afterwards—

The moment the results were announced, no one bowed their head in despair.

"It's done!"

Someone shouted it out first, and the entire laboratory was instantly filled with cheers.

People high-fived and celebrated, and even the usually serious old professor broke into a smile.

Liu Guangqi gently picked up the sealed transistor and examined it closely against the light.

A smile flickered in his eyes: "Our hard work has paid off—from now on, our CNC machine tools have their own hearts."

The news didn't reach the ministries first; instead, it slipped into Tsinghua University's campus like a gust of wind.

It's unclear which professor let slip the secret, but the news attracted a group of unusual visitors overnight.

When the door to the First Ministry of Machine Building's laboratory was knocked on, several sprightly elderly men stood outside—the head of the Mechanical Engineering Department walked in front, followed by several professors from the Physics and Mechanical Engineering Departments.

The college leaders, who are rarely seen on ordinary days, all came to visit on this day.

"Director, Elder Duan, Elder Ding, what brings you all here?"

Liu Guangqi went out to greet them upon hearing the commotion, and upon seeing the scene, his heart stirred.

The department head smiled and waved his hand, but his gaze had already passed over him and was directed into the depths of the laboratory:

"Let's take a look at the talented individuals who have emerged from our Tsinghua University."

"Let's broaden our horizons too."

These words, though spoken gently, carried weight, and the professors beside him laughed in response.

Professor Duan from the physics department, who was impatient by nature, couldn't help but ask, "Guangqi, where is it?"

"Hurry up and bring it out, let us old men see it."

Liu Guangqi had no choice but to lead everyone to the worktable covered with anti-static cloth.

Shortly after, the president of Tsinghua University arrived with several professors.

When everyone entered the laboratory and saw the exquisite transistor, they couldn't help but exclaim in admiration:

"Guangqi, you've truly brought glory to Mizuki!"

"This 3D transistor fills a major gap in the field of technology."

The professor from the Mechanical Engineering department picked up the transistor and examined it carefully under the light:

"The packaging process is extremely sophisticated, and the electrode layout is more ingenious than the design in the north."

Despite the praise, Liu Guangqi remained calm.

He knew in his heart that he was merely bringing the results of the future to the present, and could not be said to have truly created something new.

"It is inseparable from the school's cultivation."

"I would especially like to thank Professors Wang and Yin for their support throughout the process."

Upon hearing this, the two elderly gentlemen standing nearby immediately showed expressions of satisfaction.

It is truly commendable that young people do not take all the credit and know how to respect their elders.

Meanwhile, it was the most leisurely time of day in the courtyard.

A gentle evening breeze swept away the day's heat.

The neighbors brought out their small stools and gathered under the old locust tree, chatting and fanning themselves. It was a day off, and everyone arrived unusually in full force.

Yi Zhonghai and Yan Bugui stood quietly to the side; their positions within the courtyard had long since been subtly reversed.

The second uncle had become the de facto head of the hospital.

This is not surprising, as everyone in the institute now respects him, after all, he has been promoted to deputy director of the workshop.

The conversation naturally turned to Liu Haizhong:

At last week's workshop meeting, he used the speech prepared by Liu Guangqi to present the production plan in a clear, inspiring and well-organized manner, winning the praise of the entire factory.

"Second Uncle is really something else; his speaking style changes completely once he becomes a leader!"

The third uncle, Yan Bugui, waved a palm-leaf fan, his tone full of flattery.

Qin Huairu also smiled and chimed in:

"That's right. Dongxu said when he got home that Second Uncle is becoming more and more like a leader."

Everyone chimed in with compliments about Liu Hai's hairstyle.

Yi Zhonghai sat alone in the corner, slowly fanning himself with a palm-leaf fan. What could he possibly say?

All we could do was clap along.

Just as they were chatting and laughing, a clear bicycle bell rang out from outside the courtyard gate.