Fraud?

Not so!

To be precise, it cannot be called fooling, at most it is a big cake!

Ning Xiangtian looked at his wife and daughter who had transformed into a melon-eating crowd and said quietly: "In your eyes, am I a big injustice? I want to fool me unless this kid can make me unable to understand!"

Ye Fan smacked his lips, picked up the kettle on the coffee table and poured a full cup of water, raised his head and drank it clean. "An important performance indicator that affects the accuracy of the lithography machine is the graphics resolution. The graphics resolution is to measure the two adjacent objects..."

"According to geometric optical theory, when there is no aberration of the optical system, each object point should produce a sharp point image. However, due to the existence of diffraction phenomenon, the actual imaging effect is always a finite-sized spot."

Speaking of this, Ye Fan paused and secretly observed the reactions of Ning Xiangtian and Lan Xi.

stupid?

That's right!

He felt relieved and continued to explain: "The two spots overlap. The closer the position of the central intensity maximum of the two, the more difficult it is to distinguish these two object points. In the manufacturing of advanced semiconductor integrated circuits, it is crucial to obtain high-integration device resolution."

"Lithographic resolution is an important parameter for any optical system and is critical for lithography because it is necessary to create extremely small device sizes on silicon wafers, and the actual size of the pattern forming on silicon wafers is the feature size..."

"stop!"

Ning Xiangtian's mouth twitched wildly, "You, what are you talking about?"

Ye Fan stopped dryly, "Uncle, didn't you and Sister Lan ask me to speak more professionally?"

"That's what you're talking about, is it the Book of Heaven?"

After Ning Xiangtian complained, he immediately waved his hand at Lan Xi, "This time it doesn't count. This kid definitely did it on purpose. Even if he says it like this, he won't understand!"

Lan Xi sneered, "If you don't understand, you won't understand. What's the point of pretending? Are you the same as me and Xiaoxi? Xiaoxi, what's right about it?"

"Who pretended?"

Ning Xiangtian had a calm face and refused to admit it.

At this moment, Ning Xi raised his hand weakly, "Mom and Dad, can I say I can understand it?"

Suddenly, Ning Xiangtian and Lanxi stayed in awkwardly.

Can my daughter understand?

Why can she understand it?

Ning Xiangtian frowned, "Xiaoxi, if you don't understand, you can't understand. What's the point of being embarrassed in front of your parents?"

Lan Xi didn't say anything, waiting for her daughter's next words.

Ning Xi curled her lips, "But... I can really understand."

"Can you understand?"

Ning Xiangtian smiled meaningfully, "Okay, you continue Xiaofan just now."

Ning Xi said with a whisper, soft voice: "My brother just talked about the actual size of the figure forming on the silicon wafer, which is the feature size. The smallest feature size is the key size. For the key size..."

"Stop!"

Ning Xiangtian stopped again and glared at Ye Fan angrily, "You continue to talk, just talk more plainly."

As he spoke, his face was hot and hot.

Too embarrassing!

Ning Xi whispered: "Dad, let me finish it first."

"What do you say?"

At this moment, Ning Xiangtian really wanted to question his daughter: Do I want to save face?!

But because my wife is still there, I can only think about this in my heart. Once I say it, I will definitely be ridiculed.

"Xiaofan said."

"well."

Ye Fan put his hands together, "Actually, if you want to improve the accuracy of the lithography machine, you can start from two aspects: one is to change the objective lens and the other is to change the light source. To complete the two, you can improve the accuracy of the lithography machine. The higher the completion degree, the higher the accuracy."

"Not?"

"It's gone."

"That's it?"

"That's it."

Ning Xiangtian asked coldly: "What can be explained clearly in just a few words? What were you talking about just now?"

Ye Fan had a "nothing" engraved on his left face and a "word" engraved on his right face.

"What are you looking at? Not convinced?"

Noting Ye Fan's gaze, Ning Xiangtian scolded: "Are I wrong about what I said?"

"shameless!"

Lan Xi spoke at the right time, "It was you who asked Xiaofan to say professionally just now, but now you are not ashamed to say such words?"

Ning Xizhen pointed the first point, gave a melon seed into his mouth, and spat hard, snuggling something silently.

"If you want to listen, be quiet."

Ning Xiangtian was a little embarrassed by his wife and daughter's dismantling him like this, so he had to change the topic as soon as possible, "Xiaofan, you just said that improving the accuracy of lithography machines can start from two aspects. So what is your plan?"

After careful consideration, Ye Fan gave an answer, "The improvement of the objective lens can certainly improve the accuracy of the lithography machine, but as the lithography size is increasing, the accuracy of the improvement of the objective lens is extremely limited, and it cannot make the accuracy of the lithography machine reach within 15 nanometers, let alone the top 5 nanometers."

"So if you want to improve the accuracy of lithography machines to the top international level, there is only one way to change the light source!"

“How to change?”

Ning Xiangtian asked, looking very serious.

Ye Fan smiled slightly, "Uncle, this is a bit troublesome and professional."

The implicit sound is to remind Ning Xiangtian not to ask again, and you can't understand it even if you say it.

Ning Xiangtian worked hard in the business world for many years and instantly heard the meaning of Ye Fan's words. He didn't ask tactfully. After changing his voice, he asked what he was most concerned about, "How long does it take to get the light source? After getting the light source, how much accuracy can the lithography machine be improved?"

Faced with these two questions, Ye Fan was very embarrassed, "Uncle, I can't give you an accurate answer. Even if I have confidence, I am not sure how long I can successfully upgrade the light source, and I am not sure how much wavelength the light source can be reduced after upgrading."

"You also know that it will be very smooth for scientific research to go smoothly, but once you encounter difficulties, you may be stuck at this point forever."

Ning Xiangtian nodded in understanding Ye Fan's words, and finally couldn't help but laugh and scold: "In other words, you've just talked to me for a long time and was just nonsense?"

"Be careful of the words."

Lan Xi kept reminding, "Can you be an elder in front of the children?"

Ning Xiangtian pointed at Ye Fan's nose, "Wife, you were there all the way just now, this kid is obviously fooling me."

Lan Xi laughed, "You still listen even though you know you are fooling you?"

Ning Xiangtianqing couldn't help but sigh, "I don't want to hear it either, but I feel that what this kid said makes sense."

Even though I knew it was a pit, I couldn't help but jump in!

I have to say that language is an art.

Ning Xi covered her mouth and chuckled, "Dad, I want to say a fair word for my brother. His words just now are not fooling you. In fact, if you want to improve the accuracy of the lithography machine, you can only start with the light source, but the possibility of success is extremely low."

"Of course I know this."

Ning Xiangtian sighed, "If it were simple, there would be no only Xueyang Kingdom's lithography machine accuracy in the world that can reach less than 10 nanometers, come on!"

Today's era can be called the intelligent era.

Mobile phones, computers, etc. all require high-precision chips, and lithography machines are the lifeblood of making chips.

A few days ago, after the firefight between Xueyang Kingdom and Xia Kingdom in the South China Sea, they immediately announced that they would stop providing chips to Xia Kingdom enterprises.

These days, the domestic economy has fluctuated significantly, and major electronic companies have few chip reserves. According to the current consumption, the chip reserves will be consumed in at most one month.

By then, these electronic companies will face chipless use.

Although Xia Guo has mastered the complete lithography machine technology at present, the accuracy is only 24 nanometers, and it is used on computers and mobile phones...

To put it nicely, it's hard to describe it!

To put it bluntly, performance junk!

The truth is not good, but that's the fact.

Ye Fan followed the recent news and also saw Ning Xiangtian's worry, "Uncle, don't worry too much, there will be a road before the car reaches the mountain."

"Hope so."

Ning Xiangtian nodded and patted Ye Fan on the shoulder half-jokingly, "Boy, if you can improve the accuracy of the lithography machine within one month, I have no objection to you and Xiaoxi getting married on the spot."

"dad!"

Ning Xi's eyes were filled with anger.

Ning Xiangtian grinned and sucked in the air conditioner, "Your mother beat me up, and now I'm sore all over; no, I have to lie upstairs for a while."

Lan Xi followed up the stairs. She was very ruthless just now, and she was indeed a little worried now.

After the two went upstairs, Ye Fan had no intention of getting up and lowered his head to ponder.

Ning Xi stepped on the coffee table barefoot and jumped to Ye Fan, "What are you thinking about brother?"
Chapter completed!