After a few days of exams, Joey finally let go of his hanging heart, and just packed the materials into Lili, Xu Chule came to knock on Joey's door, and he walked up to Joey happily with a bouquet of flowers.

"Yours."

Joey took the flower and smelled it, the fragrance of the flower was refreshing, it was the white tulip she liked.

Xu Chule continued: "Happy birthday! ”

Joey has had so many birthdays since he was a child, and this time is indeed the loneliest, and no one has asked until now, and Xu Chule is the first. It's impossible to say that you don't mind, everyone has an emotional side in their hearts.

It is human nature to feel lonely in the face of an empty home, jealous when you see someone else glamorous, and sad to be left out in the cold.

She didn't know how to react, but responded with a stiff smile, "Thank you." ”

He still said very blandly: "We are friends, and this is how it should be." ”

The eyes were bright and gentle at first, but after speaking, they suddenly made people feel very uncomfortable, a kind of unknown emptiness.

It's like when you meet your partner who has been separated for many years, and you ask her how she is doing? She said that she was very good that she was married and was now preparing to have children. She asks you how you are, and you smile and respond, "I'm also fine, I've found a suitable other half." ”

Just looking at the back of her leaving, you will be sad instantly, because you didn't find the other half, because you still love her, but you said words of blessing her.

Xu Chule is the kind of person who hides his love deeply, even if everyone can see that he likes Joey. But he will always be a friend, and he will only pluck himself very calmly.

Maybe he thinks that if he stays by someone's side for a long time, these forms of things are not important, in fact, love can also be well water and not river water. Watching her smile and growing up with her made him very satisfied, and he didn't ask for anything else.

He broke the silence for a second, "I've ordered a cake for you, let's go." ”

Joey had no reason to refuse, so he went with him, and after simply carrying his bag, he followed him out.

It's their last night here, and they're going back to school tomorrow. Everything here is Xu Chule's dots, and he is diligent like a housekeeper.

The two of them go to the movies together in their free time in the evenings, but it's nothing more than a science fiction movie. We've also visited the neighborhood bar together, but they're all newbies and have never been to this kind of place, just sitting on the sidelines and drinking silly.

The most enthusiastic is of course to go to the most prestigious marine science and technology museum in city A, with the aquarium underground and the science and technology museum on the ground. There Joey saw the whale, only through one side of glass. The beautiful legend of whale fall is a story that every girl will be excited about.

She remembered a sentence, "I see a deer when the forest is deep, a whale when the sea is blue, and I see you when I wake up in a dream." “

Her hand was on the glass and she felt the aftermath of passing by, she seemed to be able to hear some inner voices, and Xu Chule filmed this scene very carefully.

Looking at the negatives he was satisfied, he didn't tell Joey that he wanted to keep it quietly by himself.

In the science and technology museum, they observed the development process of lithography machines, and the mobile phone chips used now are basically produced by EUV lithography machines of the Dutch company Esmail. EUV lithography uses extreme ultraviolet light (EUV) technology with a wavelength of only 13 nanometers.

There are only two countries that can produce high-end lithography machines, the Netherlands and Japan. The lithography machine is known as the crown jewel of the world's semiconductor industry and is the crystallization of today's human industrial civilization and wisdom. It contains the essence of mathematics, optics, fluid mechanics, machinery, precision instruments, polymer physics and chemistry, automation, image recognition and many other disciplines.

What is the concept of 7nm machining accuracy of Acemail's fifth-generation EUV lithography machine? It is equivalent to two large planes from take-off to landing always go hand in hand, one plane stretches out a knife to engrave words on the rice grains of the other plane, and it can't be carved.

Behind this lithography machine is the concentrated embodiment of the top engineering technology, material technology and design level of the entire West for hundreds of years.

American engineers have been adjusting one of the parts for decades, and Germany has to polish an optical lens millions of times, so Esmael once said that even if the drawings are made public, others will not be able to build a lithography machine as strong. It is more difficult to manufacture than an aircraft carrier, because no country can produce it alone.

The accuracy of China's self-produced lithography machine is 90 nanometers, and there is a technical gap of at least one generation (15 years) with EUV lithography machine.

And the Dutch lithography machine cannot be made by the Netherlands alone, 90% of the components are from other countries. Germany offers state-of-the-art machinery as well as world-class ZEISS lenses. The optical material comes from Japan. Process distribution technology is provided by Intel, TSMC, and Samsung. There are also Swedish bearing shafts, French valves. They are all shareholders of ASMAL and have the right of first refusal to supply lithography machines, and other countries can only wait if they want to order.

The core of the chip industry, or the scientific and technological progress of mankind in the last three decades, depends on the classic Moore's law.

To put it simply, chips are getting smaller and smaller because of Moore's Law, so we can basically realize the functions that can only be achieved by desktop computers ten years ago in a small mobile phone, and Moore's Law has touched the ceiling.

Each time the chip is made smaller, the capital expenditure and R&D expenses will grow rapidly geometrically. For example, in a factory that produces 14-nanometer chips, the construction cost of a factory will be as high as more than 10 billion US dollars, while the 3-nanometer process that TSMC is developing will have R&D expenses plus capital expenditures at least at the level of 100 billion US dollars. And only the huge demand from the consumer side can guarantee the massive R&D costs.

It was only with China's accession to the WTO in 2001 that Moore's Law, which had been repeatedly questioned decades ago and hit a technological bottleneck, was able to continue to break through the bottleneck and operate until now.

The short film ends with U.S. sanctions on China's high technology, the last one that did not surrender was the Soviet Union, which split into a Ukraine. The last one to surrender was Japan, and with the signing of the Japan-US semiconductor agreement, Japan's semiconductor industry collapsed and never returned to its former glory. Can we win against the United States again in this new era?

One of their favorite quotes:

Thinking of his grandfather, the frost dew cut the thorns. With a land of size, the descendants do not pity it, and give it to others, like abandoning grass mustard. Cut five cities today, cut ten cities tomorrow, and then sleep peacefully. However, the land of China is limited, and the US imperialists are insatiable. The enshrinement is complicated, and the invasion is more urgent. The remnants of Zhongxing are still left on the south bank, and now the butcher's knife is here again. Let's ask Brother Hua, what do you want to do? Step on the lighthouse and smash the blockade! If you don't go back, your body will be broken, and your soul will return!

Xu Chule took Joey to a local cake shop with a special character, and they were in the box on the second floor at this time. It's very big here, the scene is very warm, and you can sing in the box, the only shortcoming is that it looks deserted.

Xu Chule opened the packaged cake on the table, and a line of words was written on it, "I wish Joey forever young." ”

Under the multicolored lights, Joey was very excited. They had a lot of fun that night, and she forced Xu Chule to sing a lot of songs, although they didn't sound good. In fact, she doesn't sing very well, but Xu Chule always applauds enthusiastically like a loyal fan, and pretends to be obsessed.

She wiped the cream on his face, and she kept receiving blessings and greetings from relatives and friends during the fight. It turns out that there are still many people who care about her silently, and this kind of afterthought warmth is better than the feeling of being hit by a jackpot. It's just that she waited for a long time, and she didn't wait for news from a person.

If no one pays attention to you in the first place, the first person to act will always be impressed. Again, many people have cared that the person who can't wait will make you even more sad. She wished everyone hadn't shown up like that person.

She remembered that in high school, she would always silently stuff his birthday present into his drawer that day, but never leave a name. She seems afraid of being known that she likes him. Because they don't look like people with results no matter how they look at it, but she still can't help but like him.

She was stunned when she thought of these times, and Xu Chule called her a few times before she reacted.

"Let's go back, are you happy today?"

Xu Chule had been turned beyond recognition by the cream at this time, which made Joey can't help but want to laugh when he sees it, "Well, happy, thank you for accompanying me." ”

Xu Chule smiled sunnyly, "Can I accompany you in the future?" ”

This sentence made Joey hesitate for a long time, not knowing how to answer.

And Xu Chule seemed to notice that something was wrong with Joey and hurriedly explained: "I'm talking about accompanying you for your birthday." ”

Joey took a deep breath, "yes, of course. ”

Far away in another city, I looked at the stars and remembered that someone in high school would sneak a gift into my drawer on my birthday. Each time, a popular album of the time was delivered, along with a few postcards of the singer. That person will write a beautiful sentence on the postcard.

For example: "Cherish today, cherish the present, who knows tomorrow or the unexpected, which one will come first." ”

Everything seemed seamless, but when she copied my homework, her handwriting revealed herself.

I didn't reveal the secret, and I've been expecting her to write every time since, but I've never thought about it, I just thought it was fun.

I followed her example in giving her gifts, and in order not to make the same mistake as her, I deliberately wrote with my left hand. and deliberately coaxed her when she sat down, "Who gave you the things in your drawer?" It can't be someone who has a crush on you, right? ”

She usually didn't pay much attention to me, just gave me a blank look, and then went to get ready for the class books. We spent three years like this cold, and I tried to make her happy many times, but it ended in failure, so that's why I never thought she would like me.

The first few times I messaged her, she didn't reply once. I don't know how she's doing, I don't know where she is, I don't know if I'm supposed to make that call.

In the end, I didn't fight, I put the gift in my closet, in fact, if I gave it to her, the good memories of high school would be solved, and I thought it would be better to let it become an unknown secret.