Hammer of Technology

From time to time, school professors would borrow these devices, so Chen Diancheng, the president of the Ning Society, was naturally qualified to float.

Let's put it this way, in the school now, Chen Diancheng and the three vice presidents of the Ning Society are already more famous than the general professors in the school.Not only the school, but even the bosses of many technology companies in the society hope to establish a good relationship with the leadership of Ningshe.

Of course, this is not to say that Ningshe and his group can really walk sideways. For example, Chen Diancheng, in the research center, never lets those juniors and girls call him the president, because every time Director Ning glances at him, he can make him Soul tremors.

It's really not because Ning Wei is too strict on weekdays, it's simply because after learning to a certain level, Chen Diancheng realized how unfathomable Director Ning's research in the direction of mathematics and artificial intelligence is...

Let's put it this way, outsiders feel that Ningshe is extremely beautiful, and almost all the algorithms designed have led the market trend. Those extremely difficult algorithms seem to be nothing in the minds of genius children like Ningshe. Do it, and it will come out.

But only the children who have participated in the design process of these algorithms know how many problems they have encountered, such as recursive infinite loops, errors in defining the optimal value, and failure to converge even though the convergence conditions are clearly set, or unable to converge to the optimal position. ...

There are many kinds of problems, high-level and low-level, and all kinds of problems have been encountered. When they can't think about it, a group of people start to grind the professors, and then find that the fastest and correct way to solve it is to find Director Ning, no matter how troublesome it is. The problem is always that you can get feedback and suggestions the next day, and then think in the direction of the suggestion. Generally, the problem can be solved within three days.

So Ning Wei also has a nickname "Ning Shubai" in the hearts of the children in Ningshe.The translation is an encyclopedia of algorithms.

So for those who dare to question Ning Wei on the Internet, Chen Diancheng only thinks that these people are really ignorant and fearless.It's like if two people have an IQ gap of 20 or more, it's reasonable to think that each other looks like an idiot. People who haven't reached that level of knowledge, at most, just see someone's achievements on the news and think that this person is very powerful, but I really don't know what is so great about this guy.

But the children in Ning's class understood it all too well, so naturally Ning Wei also strengthened his idol status in the hearts of these children through the little things.

Especially for the children who have passed the B test, Director Ning, who is normally amiable, can turn into a nightmare in their hearts. In addition to respect, he also has a little more fear.

too difficult……

Especially what Ning Wei said when taking the B-paper exam at the end of the course "Artificial Intelligence and Mathematical Analysis" for the first time.

"In view of the attitudes you show in your usual studies, this final exam will directly use the B paper. If you can get [-] points, I am willing to indulge your usual little pride. If you can't even get [-] points, please consciously put you away Those little prides, don't be complacent just because you made an algorithm, and feel that you are number one in the world!"

Really, Chen Diancheng was still very unconvinced when he was sitting in the examination room. After all, he felt that he had mastered the course well and had practical experience. A score of 90 is too small, but when he saw the paper, he was completely overwhelmed. He was speechless.

There are ten big questions in total, and each question is ten points.How to say the title, it can't be said that it is difficult for the sake of difficulty. If you really want to say that it is all some solutions in the design of artificial intelligence related algorithms, but it is very tricky, how to say it?Chen Diancheng still clearly remembers the feeling at that time. At first glance, each question seemed to be not difficult, but when he really started to think deeply, when he tried to solve the problem, he would find that his brain seemed too simple...

In the last exam, Chen Diancheng still took the first place in the class. Unfortunately, he only scored 71 points, and the lowest score in the class was only 16 points. , In the case of 1 points, after all, a single-digit score is too shocking.

If it's just that the topic is difficult, that's all.

The key point is that after the exam, Ning Wei directly gave everyone three solutions to each question, and each of them can actually be connected with what they have learned in the textbook.

Ning Wei's various actions have led to the current consequences.As long as Director Ning is not around, these little geniuses are not afraid of everything, and if Director Ning appears, they can behave more honestly than a newborn kitten.If Director Ning loses his temper in the WeChat group, a group of little guys will behave cautiously in the research center for several days in a row, not even daring to breathe.

Chen Diancheng's walking posture today shows that Director Ning is in a better mood recently, at least he hasn't lost his temper with his students.

"Hey, Brother Ji, is Director Ning in the office?"

Walking through the corridor, as soon as he walked into Ning Ban's exclusive courtyard, Chen Diancheng saw Ji Mingzhi walking outside with his head down, holding a book between his hands.

"Director Ning hasn't returned yet. He said that the cpu has reached the critical stage, and the second tape-out will begin soon. Director Ning has gone to the laboratory for analysis."

"Oh, by the way, Senior Brother Ji, where are you going?"

"Today, Director Yu has a lecture on the technical analysis of the transition from missile informatization to intelligence. I have to listen to it."

"Oh, Director Yu? Is it Yu Xingwei who came to Ningban to give a lecture last time?"

"Yeah, but you weren't there last time, right? It seems that Director Ning took you to the laboratory."

"I heard about it when I came back. I also heard Mr. Ning say that the multi-mode autonomous navigation technology hosted by Senior Brother Yu has made a breakthrough. The adaptive navigation filtering algorithm researched can realize multi-sensor plug-and-play and reconstruction. of."

"Senior Brother Yu? Let Director Ning hear it, and you will be reprimanded again!" Ji Mingzhi glared at Chen Diancheng.

"Hehe, slip of the tongue, slip of the tongue, it's Teacher Yu. Senior Brother Ji, go quickly, I'll go to Professor Lu first." After speaking, Chen Diancheng shrank his head, brushed past Ji Mingzhi, and walked into the small courtyard.

In fact, after the outstanding students in Ning's class began to get along with Ning Wei, they got on well with the first batch of direct doctoral students under Ning Wei's leadership.The main reason is that everyone doesn't dare to make any big conflicts.

There is no way, the main reason is that the instructor is too strong.

"Wait, Professor Lu isn't here either."

"Huh? Professor Lu also went to the laboratory?"

"No, Professor Lu won an award for his research combining particle swarm adaptive variable neighborhood genetic algorithm, and was invited by the Academy of Sciences to give a report." Ji Mingzhi explained.

"Professor Lu has won another award? I'm afraid we will have more academicians in our yard in two years' time?" Chen Diancheng said with a smack of his mouth.

"It shouldn't take another two years. Next year we will probably be called Academician Lu."

"Hey, why don't you say that Professor Lu doesn't bring his own graduate students?"

"Probably because he helped Director Ning to stare at you enough."

"No, Brother Ji, if you talk like that, you might lose me as a good friend."

"Hehe...Xiao Chen, when I went to give a report to Director Ning last time, I heard Director Ning sigh that you feel that you are doing well recently!"

"Am... Really? Brother Ji, don't scare me. When did you report? I've been very honest recently. I went to class quietly every day and didn't do anything!"

"You know what you have done! Do you really think Director Ning doesn't know your social account? You fight with others online all day long. Director Ning said that you must have been idle because he was too busy recently. Wait for him I'm done with my busy schedule, and I'll take a good look at your recent homework."

"I... no, Brother Ji, that is a normal academic discussion, how can it be considered a quarrel? Isn't it normal to have academic disputes? We have made so much effort on general-purpose hardware, and now we are still talking about special-purpose development. , Isn’t this the trick of trying to cheat money with academics? Is it unreasonable for me to refute? Senior Brother Ji, you have to say something nice for me.”

"Hehe... You can go and explain to Director Ning yourself. Director Yu's lecture is about to start, so I'll leave first. Besides, there are no classes this afternoon, and the only tutor on duty in the courtyard is Professor Ron, except for Senior Brother Meng, Senior Brother Lu and Zhuo The senior brother was taken to the laboratory by Director Ning, and your other senior brothers and sisters are all there. If you want to find someone to help you intercede in front of Director Ning, you can go to your senior brothers and sisters. If you have academic issues to discuss, go to Luo Professor En. Let's go."

……

Standing at the gate of the courtyard, Chen Diancheng hesitated for a moment, and then decided to go to the library to study by himself.

In fact, he planned to talk to Director Ning or Professor Lu this time, and then go to the laboratory for a while in the name of scientific research.Because he is still in his first year of graduate school, in other words, he still has to attend classes.

Student Chen didn't want to go to class anymore, and spending time in the lab with Director Ning was his favorite thing to do.

If Director Ning was there, he could argue for it in front of Director Ning, and if Professor Lu was there, he could also ask Professor Lu to help him speak well in front of Director Ning.Both of them were gone, and he didn't bother to go in and find someone.

It wasn't that Chen Diancheng looked down on his senior brothers and sisters. None of these people had the courage and face to speak well of him.As for Professor Lucy Rowan...

Forget it.

The whole courtyard knew that Director Ning and Professor Ron were born at odds, and when the two discussed issues together, they would quarrel in [-]% of the cases.However, Professor Ron obviously couldn't quarrel with Director Ning, and he had to challenge his limits every time, becoming a typical example of "food and love" in the minds of all children.

Of course, this "food and love" is simply talking about quarreling.Everyone still likes Lucy Ron's academic level and personality. Of course, there must be beauty in it. In this era where beauty is justice, high IQ cannot be completely exempt from vulgarity.Not to mention that Lucy Ron is not only good-looking, but also has a high IQ, so everyone is very emotional, how can Director Ning talk about it—so willing to scold...

In short, as long as you hear Professor Ron's roar in the yard, you must have quarreled with Director Ning, because it is almost impossible for others to make Professor Ron lose his temper.

But then again, this is probably the reason why my wife is so loved. After all, my wife is always gentle and gentle to them, and she is very patient. Compared with Ron's temper that explodes at a little bit, he has gone to another extreme. The teacher's wife and Professor Ron are still very good best friends, and Professor Ron even recognized Xiao Ningke as his goddaughter.

Well, these are just floating clouds. Anyway, it is highly unlikely that Professor Ron can speak up for him.

Chen Diancheng didn't want the two of them to quarrel over his affairs, and then turn the flames on him.

Before entering the yard, he walked out of the yard dejectedly.

Thinking that the purpose of going to the laboratory was not achieved, and also learned from Senior Brother Ji that Director Ning felt that he had drifted away again recently, Chen Diancheng only felt sad from the bottom of his heart.

bored...

Didn't he just quarrel with those people online?Why did Director Ning notice it?It is probably impossible to go to the laboratory to help out now, and maybe he will be reprimanded.

Hey... he, the president of the Ning Society, can be impressive outside, but he is still just a junior in the yard. It makes me aggrieved to think about it.

Depressed in my heart, I unconsciously walked a lot more honestly.

The people here hadn't walked out of the yard when the phone vibrated again in their pockets.

Chen Diancheng took out the phone, glanced at it, and saw that Old Jiang was calling.

As one of the Seven Gods of the Ningshe period, Lao Jiang's development after that was not so satisfactory. For example, he had finished his junior year, and he hadn't earned enough credits, so he had to continue to complete his senior year courses in the Ning class.

It sounds like a failure, but in fact, the original 40-member Ningban only had 17 members in his senior year.Except for four people who graduated ahead of schedule, the other 19 people have been diverted to the School of Mathematics, a small number continue to study theoretical mathematics, and some are scattered in applied mathematics and financial mathematics.Although the future of everyone is still very bright, no matter which direction you continue to study, most of them have already been booked by various large enterprises and financial institutions, but those who are diverted from Ning’s class are definitely not eligible to apply for Ning’s graduate students, which is very embarrassing. People are sad.

Although Jiang Wenhan failed to graduate early, his grades are still at the top level in the Ning class. At least one of the postgraduate quotas for Director Ning has been confirmed and he will definitely be reserved for him. This is already the highest achievement of the Ning class.

Of course, apart from these, Lao Jiang also has other achievements. For example, he formed a team with Chen Diancheng and Qiu Wenhan and won the first prize in the Huaxia College Student Mathematical Modeling Contest. After winning the award, the three of them signed up for the mcm/icm competition and won the f prize.

Probably because when Ningshe was first established, because they didn't have so much money on hand, when they asked their family to ask for it, the parents directly sent the matter to Director Zhou, which almost caused Ningshe to have a miscarriage. It's very low-key.

This made him become good friends with Chen Diancheng, who is very high-profile and eccentric.In addition, Lao Jiang's temperament is relatively calm. He not only has the right to vote in projects in Ningshe, but also takes care of the duties of the supervisory committee.

This is not a bad job. You must know that the two accountants specially hired by the Supervisory Committee from the Accounting Department of Guanghua College are quite good-looking...

"Hey, Old Jiang, what are you unhappy about, are you going to make me happy?"

"...Well, Diancheng, let me tell you something...the monitoring system issued an alarm just now, there may be commercial spies in our Ning Society..."

"Pfft... what are you talking about? Our Ning Society? Commercial espionage?"

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Open a chapter to explain

The content span has been skipped for three years, mainly because - I really can't understand the paper...

That's right, it's a paper on the field of chip manufacturing. The three-dimensional silicon structure belongs to a heterogeneous chip. Specifically, it uses silicon as the upper and lower connection structures, and the middle is a carbon nanostructure. This thing must ensure heat dissipation and performance. The circuit layout at the nanometer level is all a new field. There are some researches and papers, but those papers are too esoteric, especially when it comes to the preparation process. I found that my IQ is not enough to understand those academic papers. Ideas from the big guys.

This is especially true for the manufacturing process. Think about it, the transistors on the carbon nanotubes are grown according to the pre-made design. The technical difficulty of this is too difficult to write!Don't I know how to express it after seeing it...

So I admitted that I was defeated. When I read the paper, I saw he vomited blood, but I still couldn’t understand it...so I jumped forward for three years.

In fact, if we really want to do it, three years is definitely not enough. In order to ensure the integrity of the story, three years should be used.

While studying these cutting-edge technologies, I really admire the current scientists so much. I really don’t know how they stuff so many things into their heads.

Of course, the biggest advantage of writing this book is that I have a little understanding of many cutting-edge scientific fields. Although most of them are trivial, I am really happy.

At least I know how difficult it is for brothers and sisters who are really doing scientific research...

In addition, the following plot is going to go to science fiction...

In other words, there are mostly brain holes and fantasies.

Finally, thank you for your concern. This book is not finished yet...

As everyone said, it's not good to open such a big plug-in, just get a chip, and there are still stars and seas to conquer...

that's all!

Finally, I would like to thank all the book friends of Hammer of Technology again, and wish everyone an early year!

Love you guys!

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366 Chip Conundrum

In the Huaxia Future Intelligence Research Center, Ning Wei is leading his students to do the final verification in a special laboratory.

Speaking of it, because the complexity of 70.00D silicon-through-silicon chip technology has basically reached the pinnacle of modern chip design, chip verification even accounts for [-]% of the entire chip design process.

Especially four months ago, after the first tape-out failed, Ning Wei took a group of students to Ning Si's laboratory in Jiangcheng for a three-day meeting.And witnessed with my own eyes the leaders in charge of all aspects actively launched criticism and self-criticism...

Ning Si's laboratory moved from Shencheng to Jiangcheng two years ago.It's not just Ning Wei's suggestion, but the main reason is that the conditions offered by Jiangcheng are indeed good, and it seems that Huawei is a little bit unable to hold on.

Although Ning Wei never cared about how much money was spent on designing a [-]D silicon-through-silicon tube CPU, it is certain that the investment was huge.

So much so that this project has only been carried out for one year, and Huawei had to introduce a third-party strategic investor.So Ningsi Laboratory was separated from the 2012 laboratory as a whole, and then Jitu Group and Huaxia Precision joined Ningsi and took 37% of the laboratory's shares.

When Mr. Yan called him to report the incident, Ning Wei was also very impressed, and asked a few more words about how to introduce strategic investors at this time, and then made Ning Wei a little ashamed with his strict explanation.

Probably the group has made calculations. If the chip under design can be mass-produced in five years, then based on the investment in this year, without affecting the normal investment in research and development of other businesses, Huawei will probably only be able to support it for a year. In a year and a half, if the R&D of other businesses is suspended and Ningsi Lab's research is fully guaranteed, and most of the credits granted by major banks are used up, it will probably only last for another two and a half years...

And it has to be guaranteed that it will be mass-produced in two and a half years.

This does not include the various systemic impacts of suspending R&D investment in other businesses and the impact on performance.

It is not a simple matter to know that a laboratory has stopped and then resumed, let alone the main project research and development pause.

As the company's decision-maker, there is no choice but to plan ahead and introduce strategic investors.

At that time, these words stunned Ning Wei...

Well, at that time, Ning Wei really didn’t realize that Ning Si had developed into a large R&D team with more than 1.2 people around the world in a year. These teams almost all cooperated with his understanding of chips, sketched and verified The structure and function of [-]D chips.

In addition, in order to better cooperate with Ningsi Lab, the investment in minimalist eda has also begun to increase exponentially.

No way, now there is no eda software that can support circuit design on a three-dimensional structure except the minimalist eda, and everything is groping from scratch, and most of the previous experience and design composition are not available.

In other words, everyone has invested heavily, and the pressure can be imagined.

Especially the first tape-out not only failed, but also exposed many problems. For example, the finished chip has a serious stability problem in the high-frequency state, and the em fails, there is a risk of unstable chip life, and the lvs stress test fails. Stable, pin test is always open...

Seriously hit everyone's morale.

This also forced Ningwei to devote all his experience to the chip in the past few months, and began to check the reasons for so many problems.In the end, the conclusion is also very appropriate. The chip inspection team still lacks an understanding of the three-dimensional structure. All tests are based on past experience. Various problems can arise.

For example, in the eyes of lvs, the reason why the test is unstable is that a test port layer is directly connected to the operation layer, but not connected to the interface inside the chip and the chip package.Under normal circumstances, it should be the signal inside the chip. For example, the 1.2v signal should be converted from 1.2v to 3.3v after passing through the interface, then enter the pad opening, and then connect to the package through the bonding gold wire, and finally reach the chip and solder on the pcb the pins.

During the design inspection, because the gold wire connection in the [-]D design is too complicated, this error was not found according to the conventional chip inspection method, which led to problems in the final tape-out.