Film and Television Time Travel: Why Do I Always End Up in Romance Dramas?

By mid-October, Jiangning was already feeling cool.

Yu Chen is in a video conference.

The middle-aged man on the screen wore a relieved smile. "Mr. Yu, thank you so much this time."

"Mr. Wang, you're too kind. It's good that the solution can be used."

My phone on the table vibrated; a bank deposit notification popped up.

The final payment of 24,000 yuan has been received.

Yu Chen turned off the camera.

He only took 6 days from order placement to delivery for this business.

This included three remote diagnostics, an 18-page process optimization report, and two late-night technical Q&A sessions.

That's really something.

However, the reward he values ​​is never cash.

[Ding! The technical service project "Optimization of Texturing Process for Zhejiang Yongxin Photovoltaic" has been completed.]

[Achievement Points +300.]

Current Achievement Points: 4280

The system notification sounded in his mind. Yu Chen leaned back in his chair and rubbed his temples.

Achievement points are the driving force for him to keep going every day.

Yu Chen got up, made himself a cup of instant coffee, and sat back down in front of his computer.

The system panel interface is still displayed on the screen.

He refreshed the daily shop during the meeting, but he hasn't had a chance to check it yet.

[The system shop refreshes automatically daily...]

Today's product list has been updated:

1. [Photovoltaic Cell Defect Atlas]: Includes high-resolution microscopic images of 27 common defects, along with cause analysis and a solution index.

Price: 1200 Achievement Points.

2. [Industry Connections (Random)] x1: After use, you will randomly receive one connection related to the photovoltaic industry in the Yangtze River Delta region.

Price: 800 Achievement Points.

3. [Energy Boosting Potion] x3.

Price: 200 Achievement Points.

4. [Analysis of the Manufacturing Challenges of N-type TOPCon Cells (In-depth Report)]: This report details the seven major process bottlenecks in the mass production of N-type TOPCon cells, and includes a comparison of the problem-solving approaches taken by major domestic and international manufacturers.

Price: 1500 Achievement Points.

5. [Enhanced Language Affinity (Effective within 24 hours)]: Slightly enhances the host's language persuasiveness and appeal, helping to improve communication efficiency in business negotiations, technical exchanges, and other situations.

Price: 500 Achievement Points.

Yu Chen's gaze fell on the fourth item.

N-type TOPCon.

It was a full eight years ahead of its time.

It is also one of the popular routes for next-generation high-efficiency battery technology.

Theoretically, its conversion efficiency can be more than 1.5 percentage points higher than that of the current mainstream P-type PERC cells.

However, mass production is extremely difficult, and improving yield is a common challenge in the industry.

Among the clients he has contacted in the past month, three large-scale component manufacturers have already started to deploy their products, but they are all stuck on the issue of low mass production yield.

If we could thoroughly understand this technology in advance...

Purchase the "Analysis of Manufacturing Challenges in N-Type TOPCon Solar Cells (In-Depth Report)".

[Consuming 1500 achievement points.]

[Current remaining achievement points: 2780 points.]

A massive influx of information flooded my mind, more than ever before.

Yu Chen closed his eyes, leaned back in his chair, and began to process the information.

When he opened his eyes again, he felt that his understanding of photovoltaic technology had deepened.

No, it's several floors.

If before he was just looking at the scenery from the mountainside, now it feels like he has already climbed Mount Everest.

Suddenly, the phone rang.

It was a landline number from Suzhou. Yu Chen glanced at the time; it was 1 a.m.

Work calls at this hour are either urgent or the caller doesn't care about work hours at all.

"Hello, this is Morningstar Technical Consulting."

"Is this Engineer Yu? This is Hua Xiangyang, the technical director of Shuangyuan Photovoltaic." The voice on the other end of the phone was steady and powerful.

Yu Chen felt a slight stirring in his heart; he was very familiar with this name.

"Hello, Mr. Hua."

Hua Xiangyang, Shuangyuan's core technology.

He holds a PhD in materials science from the Chinese Academy of Sciences and has worked in the photovoltaic industry for ten years, rising from a research and development engineer to a technical director, holding more than a dozen patents.

At Shuangyuan, he was one of the few people who dared to slam his fist on the table with the general manager.

"I'm sorry to bother you so late." Hua Xiangyang spoke frankly, "I learned about you through Lao Liu from Trina Solar and Engineer Sun from JA Solar. They both said that you have unique insights into process optimization, especially in improving the yield of wet cleaning and texturing processes, and you have practical examples."

Yu Chen didn't say anything polite, he just listened quietly.

He knew that someone of Hua Xiangyang's stature would never make a phone call late at night just for small talk.

Sure enough, Hua Xiangyang got straight to the point in his next sentence: "I have a new N-type TOPCon pilot line here. The equipment is a hybrid of Centrotherm and Roth & Rau, and the process follows the LPCVD + phosphorus diffusion route."

"Currently, the mass production yield is stuck at 87%, while the theoretical value should be above 92%."

"We investigated for two months. The problem may lie in the doping uniformity of the polysilicon layer or the interface state density of the tunnel oxide layer, but the team has different opinions on which specific link it is and how to optimize it."

He paused, his tone clearly showing confusion and urgency: "Engineer Yu, have you been involved with TOPCon's mass production line? Do you have any ideas regarding interface state control and passivation layer quality?"

The question was very specific and went into the details of the process.

Yu Chen did not answer immediately.

He got up, walked to the whiteboard, picked up a marker, and quickly recalled the in-depth report he had just absorbed.

Combining the intuition gained from [Technology Insights], several key points quickly emerged.

"Hua Zong,"

"You mentioned the LPCVD route, so the deposition temperature should be set between 620-650 degrees Celsius, right?"

Yu Chen spoke slowly, but every word was clear.

"Yes, our current temperature is 635 degrees."

"Within this temperature range, the grain size and orientation of polycrystalline silicon will directly affect the uniformity of subsequent phosphorus diffusion."

"I assume you've already done SEM and XRD analysis. Is the grain size distribution too wide? And is there an excessively high proportion of different orientations?"

There was a three-second silence on the other end of the phone.

Then came the sound of paper turning over, and a soft gasp.

"How did you know?" Hua Xiangyang's voice carried a clear surprise for the first time. "We just did the test last week, and the report hasn't been released yet. The standard deviation of the grain size distribution is indeed 0.8 points larger than the ideal value, and the orientation percentage... has reached 62%."

"Because of temperature." Yu Chen drew a simple temperature-grain size curve on the whiteboard. "635 degrees is a delicate critical point."

"As for the tunneling oxide layer, if you are using dry oxidation and controlling the thickness to 1.2-1.5 nanometers, then the reason for the high interface state density may not be the oxide layer itself, but the pretreatment process of the silicon wafer surface below."

There was complete silence on the other end of the phone, with only the faint sound of breathing.

A silence that lasted ten seconds.

Then, Hua Xiangyang's voice rang out again.

This time, there was no scrutiny, but rather a strong interest, even excitement: "Engineer Yu, Lao Liu and Engineer Sun are right, you really are... different."

He paused, his tone becoming serious: "Discussing technology over the phone always creates a barrier. Mr. Yu, would it be convenient for you to come to Suzhou soon? Come and see our R&D center in person; we'll cover the costs according to top industry standards! If it truly solves the problem, Shuangyuan will definitely not let our friend down!"

Yu Chen knew the time was right and the value he had demonstrated had been recognized.

He readily accepted: "It's my honor to be invited by Mr. Hua. How about Wednesday afternoon, the day after tomorrow?"

"Okay! I'll send a car to pick you up Wednesday afternoon! I look forward to meeting you to discuss the details!"

After hanging up the phone, Yu Chen smiled slightly.

This is not only a potential order, but also an excellent opportunity to enter the core technology circle of Shuangyuan, observe the upcoming turmoil up close, and even potentially affect Nie Xiguang at a critical moment.

Moreover, this trip to Shuangyuan might allow me to run into Nie Xiguang and give her a surprise.

[Important Side Quest Triggered: Recognition from a Technical Authority]

[Objective: To gain high praise from Hua Xiangyang and successfully pinpoint the core issues of the dual-line production line.]

[Reward: Achievement Points +1500.]

On Wednesday afternoon, Yu Chen arrived at Shuangyuan Photovoltaic Plant on time.

Hua Xiangyang's assistant was already waiting and took him directly to the research and development center.

The next few hours were filled with intense technical exchanges.

With his solid foundation and insight enhanced by the system, Yu Chen not only accurately identified the problem, but also discovered two overlooked risk points.

Hua Xiangyang and several key technical personnel listened attentively, nodding frequently, their eyes growing increasingly fervent.

That evening, Hua Xiangyang hosted a banquet for them at the factory's small canteen.

During the gathering, the conversation naturally turned to industry trends.

With his forward-thinking insights, Yu Chen speaks eloquently and always manages to impress people with his insightful remarks.

Hua Xiangyang nodded repeatedly as he listened, clearly regarding Yu Chen as a rare "technical confidant".

"Engineer Yu, we're having an internal technical seminar tomorrow morning, you absolutely must attend and give another presentation to our engineers!" Hua Xiangyang said, holding Yu Chen's hand with great enthusiasm.

This means that Yu Chen will spend another morning in Shuangyuan tomorrow.

The opportunity is here.

The next day, Thursday at noon.

Nie Xiguang, Yin Jie, and Wan Yuhua ate together in the staff canteen.

The three of them had just finished getting their food and sat down when Yin Jie, with her sharp eyes, nudged Nie Xiguang: "Xiguang, look over there! It's Director Hua from the R&D center! Who's that guy next to him? A new expert? I've never seen him before."

Nie Xiguang followed her gaze and was instantly stunned.

At a table not far away, Hua Xiangyang was having a lively conversation with someone.

And that person, wearing a simple light blue shirt, with a tall and straight posture and a clear profile, who else could it be but Yu Chen?!

How did he end up here?

He also spent time with Hua Zong, the "pillar of strength" in the company.

Just as she was lost in thought, Yu Chen seemed to sense her gaze and turned his head.

Eyes facing each other.

A perfectly timed "surprise" also flashed in Yu Chen's eyes.

He then gave her a gentle and familiar smile, whispered something to Hua Xiangyang, and got up to walk towards their table.

"Senior? What a coincidence." Yu Chen walked to the desk, a hint of surprise in her eyes. "You work here too?"

He knew Nie Xiguang was here, but this chance encounter needed to be acted out naturally.

Nie Xiguang was still in shock: "Yu Chen? You... how could you..."

"Oh, I just came over to discuss some technical issues with Mr. Hua," Yu Chen said casually, as if he were just dropping by.

Yin Jie's eyes widened in surprise, and Wan Yuhua also showed a look of astonishment.

Is the "expert" whom Hua Zong personally accompanied to discuss the technology a friend of Xi Guang?

So young?

"Who is this?" Hua Xiangyang also walked over, looking at Yu Chen and Nie Xiguang with curiosity.

He usually spends all his time in the laboratory, so naturally he doesn't know Nie Xiguang.

"Boss Hua, this is Nie Xiguang, a friend of mine from Suzhou," Yu Chen introduced calmly, then said to Nie Xiguang, "Xiguang, this is Boss Hua."

"Hello, Mr. Hua." Nie Xiguang quickly greeted him.

"Little Nie, hello, hello!" Hua Xiangyang smiled broadly, clearly in a very good mood. "Engineer Yu is young and promising, with exceptional technical insight! You two chat, you two chat!"

He patted Yu Chen on the shoulder and left first.

As soon as Hua Zong left, Yin Jie couldn't hold back any longer: "Xi Guang! What's going on? Your friend is Hua Zong's honored guest? He's really hiding his true abilities!"

Nie Xiguang looked at Yu Chen, her mind filled with countless questions, but ultimately her expression turned into a helpless yet slightly amused one: "Yu Chen, just how many more surprises do you have that I don't know about?"

Yu Chen smiled, pulled out a chair and sat down: "Just finished working, want to eat together? Aren't you going to introduce your colleague?"

At this moment, the noise of the cafeteria seemed to fade away.

As Nie Xiguang looked at the boy in front of her who always appeared in unexpected places and brought unexpected information, that subtle feeling welled up in her heart again.

He's like a book that can never be fully turned; every time you think you're close to the answer, you discover there are even more exciting chapters to come.

All of this was witnessed by Lin Yusen, the newly appointed vice president, who had just entered the cafeteria and was preparing to have a quick meal before holding a mid-level meeting.

Lin Yusen stood at the entrance of the cafeteria, his gaze passing through the crowd and landing precisely on that somewhat familiar face that evoked mixed feelings in him.

Nie Xiguang.

She was chatting and laughing with a strange young man, surrounded by two other female employees. The technical director, Hua Xiangyang, had just left the table, his smile still lingering on his face.

Lin Yusen frowned slightly.

Who is that young man?

Why was Hua Xiangyang personally accompanying someone who wasn't a company employee?

And he seems to be quite familiar with Nie Xiguang?

His eyes were deep and unfathomable. Suppressing the inexplicable displeasure in his heart, he said to his assistant in a deep voice, "Notify all departments to assemble in the conference room in half an hour."

After saying that, he turned and left the cafeteria without lingering.