Chapter 264 K chip
"See this figure in this picture for the front-end chip design process of the satellite navigation terminal. After the chip circuit design and the pre-imitation are completed, the circuit layout is provided. The layout design is essentially a process, which is used for physical description, with the purpose of creating an engineering netlist, so it has high requirements for its accuracy. It must comply with the constraints imposed by the manufacturing process, the design process and the performance requirements that prove feasible through simulation. Therefore, it will carry out 3 processes next..."
It's still the same conference room, and the people.
Lu Yao took his complete model to explain the PPT and stood in the conference room and talked endlessly.
He said everyone was listening carefully.
Except for Zheng Xiaofan, who just covered his mouth and yawned.
He really doesn't understand.
I even felt a little anxious to urinate and wanted to go to the bathroom.
I looked at the time speechlessly... It was already past 4 pm.
The report started at 2:30 and has lasted for nearly 2 hours.
Lu Yao seems to be not finished yet.
From his initial design ideas to various simulation data... it seems that's what he called it?
There are also a lot of formulas and various charts, talking one by one, talking one by one.
This kid is so eloquent.
How can we keep going for more than an hour?
But this time is too difficult.
Or it is terrible that intellectuals are, how did they create these high-tech things against these boring numbers and charts?
Tsk tsk...
He sighed, bored.
Until... when he was about five o'clock, he finally heard Lu Yao say:
"So, in general, the Beidou satellite navigation system is my country's main strategic infrastructure and a reflection of the country's comprehensive strength. It not only affects the national security issues, but also penetrates into the daily lives of the people. It is a typical military-civilian integration industry. At present, the country is vigorously developing the integrated circuit industry, which shows that integrated circuits will flourish in the next few decades and realize independent innovation in the field of integrated circuits.
Therefore, in such a general environment, the RF transmission front-end chip designed for the Beidou third-generation satellite navigation terminal is a general trend and is of great significance to the application of Beidou navigation terminal. This model is based on the most advanced CMOS process at present. Thanks to its perfect integration with digital baseband, it is designed with the core idea of "low obstacles, low power consumption, high integration, strong penetration and fast reaction".
At the same time, I believe that with the advanced technology in the future, its cutoff frequency will become higher and higher. This system-on-chip system that integrates RF and baseband will be a key research direction in the field of integrated circuits..."
Zheng Xiaofan was excited.
Is this a summary right?
Is it over?
Just as he was thinking, he suddenly saw another PPT with various numerical symbols written on the curtain.
"The data in the figure is a highly integrated transmitter chip parameter designed for Beidou third-generation satellite navigation terminal applications based on COMS technology. The chip integrates LPF, ModulationMixer, VGA and DA. The main work is as follows..."
His mouth twitched.
besides! ?
Brother, you're not finished?
But the facts proved that it was not over.
After Lu Yao spent nearly 15 minutes, he introduced the various sections of the chip collection with the numerical parameters obtained after simulation, and said:
"I think there is still a lot of room for improvement for this model. First of all, during the previous imitation process, the linearity of the chip needs to be improved, so it needs to be further optimized.
Secondly, during the post-imitation process, the two performance parameters of the modulation mixer's third harmonic suppression and local oscillator suppression are quite different from the previous imitation results, and must continue to be optimized.
Furthermore, compared with the previous imitation, the subsequent imitation of the linearity of the variable gain amplifier and the drive amplifier has also deteriorated a lot, and further parameter adjustment and optimization is required.
Finally, only the design and simulation of each module have been completed, so the next step is to complete the system-level simulation verification of the chip and then perform the chip processing. After the processing is completed, various indicators of the RF emission front-end chip need to be tested to verify the chip-related performance through the test. After the test is completed, a test report is made to summarize the problems existing in the chip and find out the reasons to provide a basis for the next chip optimization design. ”
Speaking of this, PPT jumps again.
But this time there is no content on it, and there are four big words "Report ends". And below are the thanks.
Sun Liqiang's name is first, Bai Yao followed by it, the third is Li Xiang, and the fourth is Shi Ming.
He wrote all the participants in this project, including Wang Tianshu, who were also ranked behind Shi Ming.
And with the emergence of this page of PPT, Lu Yao nodded:
"My report is over, thank you everyone."
“…”
“…”
“…”
No one applauded.
In fact, this is normal. After all, everyone did not come to cheer with him.
After listening to the 3-hour report, I was frankly speaking, the amount of information was too large and many people needed to digest it.
And verify the authenticity and accuracy of this report in your own unit.
So, after more than ten seconds of quieting, the leader of the Guoan whom Lu Yao met last time said:
"So, Lu Yao, can I understand that this model has been designed now?"
"The initial model has been designed. The next step is to verify the theory, then send it to the die, and after the chip comes out, physical tests will be conducted, including a series of environmental tests..."
Speaking of this, he paused, and his eyebrows became brighter.
"To be honest, I have confidence in my model. Although it is only the first edition, I believe that all leaders can feel its value after verification. Next, if possible, I will apply for scientific research funds with the school to further deepen the model. However, at this point, more professionals need to do it. I am really a little..."
He smiled bitterly:
"The workload is too great. This model has been studied since I started systematically learning semiconductor design last year. Until now... it can be said that it took a whole year to complete this prototype. If I continue, it is really not something I can do alone. Fortunately, the prototype has already existed, and the next thing is only needed to verify."
When he said this, his mind was full of days and nights of fighting for this model.
Every code, every data, past memories and present intertwined, old problems and new problems appear intersect, solve, verify, think...
It was only after everything was built that this RF chip was built that was at least six years ahead of schedule.
Make navigation more accurate, positioning more accurately, penetrating more powerfully, and signal more stable... All these cross-age research finally appeared in your own hands.
Obviously, the day before yesterday, on October 13, he was not so excited when he got the post-imitation data.
But now, standing in front of these people, his tone gradually began to tremble.
Trembling, he sighed and said sincerely:
"I'm going to hide it from you, I'm really tired to complete this job by myself. I'm so tired..."
Hearing his words, many people raised their heads from the thirty-page report in front of them.
Including Zheng Xiaofan, he suddenly realized... the young man in front of him, strictly speaking, was less than 20 years old.
He is indeed a genius.
But behind the genius...
But it was the whole year of day and night behind these more than thirty pages of reports.
Indeed...thank you...thank you so hard.
Seeing him holding the table with his hands at the moment, his face full of fatigue, the middle-aged man in Guoan thought for a while and said:
"Do you have anything else to ask? If not, let Lu Yao go and have a rest first."
“…”
“…”
“…”
No one has any objection.
So, after receiving the instructions from the leader, Zheng Xiaofan took Lu Yao back to his office.
One cup of tea, two cups of tea, and finally Lu Yao took a paper cup and poured two more cups of water. He leaned on the sofa and closed his eyes directly.
“…”
Zheng Xiaofan glanced at him, thought for a while, and closed the report on the computer about the recent movements of the twins and Luo Xuewei.
I originally wanted to talk to him about this, but now... let him have a good rest.
Sure enough, Lu Yao snored just after one minute.
Going asleep.
He was even more speechless, but he also knew that it was only two o'clock that people could reach the point where they could fall asleep while sitting.
Either use your brain too much or your body is too tired.
He is really tired.
So he took out the pillow from his cabinet for the night in the office, and after laying it out, he helped Lu Yao lie on the sofa.
I waited until the leader came in.
He stood up subconsciously.
The middle-aged man waved his hand, turned his head to look at Lu Yao, and asked:
"Tired?"
"It should be, extremely tired. This is a deep sleep."
Hearing this, the middle-aged man nodded:
"His research data has been taken away by these units. After a while, he woke up. You told him to let him have a good rest in the near future. I just asked, it seems that it will take about two or three months to make a chip and test the service life. It is October now, and according to his statement, it will be next year to set up a project to continue researching."
"Okay... I originally wanted to talk to him about Vesna Luo." "Don't talk."
Middle-aged man waves his hand:
"Let's talk about it in a few days. His brain is a baby. He is really exhausted. If you don't mention anything else, we can't stand it if the people from Fuhua come to cause trouble. After a while, wait for someone to wake up and take him a good meal. As for research, you tell him to let him wait."
"Okay."
After Zheng Xiaofan nodded and agreed, the middle-aged man left.
He was not in a hurry to have a meal, just busy with the work at hand while listening to Lu Yao snoring.
In their industry, overtime is normal and not very strange.
But after finishing the work at hand, he found that Lu Yao was not awake yet, and he was speechless.
After looking at the time, I found that it was already past 8 o'clock.
He guessed why the other party had enough rest for the time being. If he really wanted to rest, he would find a place to have a good vacation.
So he got up and walked to Lu Yao:
"Lu Yao."
The newest ⊥Xiao⊥Speak⊥Send⊥Six⊥9⊥Book⊥⊥⊥⊥Back⊥⊥⊥⊥!
"Hurry..."
"Lu Yao, wake up, stop sleeping."
"Hurry..."
Seeing Lu Yao's morality while sleeping and snoring, he was speechless and decided to help the person up directly to let him wake up.
And under his operation, Lu Yao opened his eyes in a daze.
After looking at Zheng Xiaofan...
"Ah?"
"...Go home to sleep, are you hungry? Do you eat or not?"
After hearing Zheng Xiaofan's words, Lu Yao's confused consciousness gradually returned.
After realizing it, he thought about his words and then shook his head:
"I don't eat anymore, I'm tired, I want to go home to sleep."
"Okay. I'll give it to you."
"Yeah."
After barely standing up, he felt that he was head-heavy and was confused all the way with Zheng Xiaofan. When he opened his eyes again, he had already arrived downstairs of his house.
“…Why is this?”
He was stunned.
Zheng Xiaofan said in wonder:
"Then where do you want to go? Isn't this your home?"
"It's my family...but aren't my mom and my dad on a business trip again?"
My dad didn't mention it, he and Mr. Chen have been in Yanjing for almost the past few months.
My mother was transferred to Kunshan with intentional arrangements.
Ms. Chen was actually quite speechless about this sudden equilibrium, but... after she was transferred out, she was promoted.
After many considerations, Ms. Chen finally accepted the transfer, and because Kunshan is too far from the city of the Magic City, she cannot run for commuting and can only live there.
This is actually contrary to Ms. Chen's expectations of keeping her husband and children every day.
But... people, that's it.
When I don’t have it, I want to have it, but after I have it, I feel it’s nothing.
It was because the road was windy and rainy every day was because I had to drive a big car. But now it is different. Although my husband doesn’t come back often on business trips, it is actually no different for her from her first half of her life. Besides, the child is older and not only becomes independent, but the most important thing is that he has inexplicably started to make money. The band that a few children made... I went to perform in other places every week during the weekend, and I could actually get 20,000 or 30,000 a month...
After Ms. Chen gradually adapted to this rhythm, she accepted the mobilization.
Although the family has dispersed, it’s good that the heart is not dispersed.
So, in the past few months, Lu Yao's home has actually changed a lot.
Although... they are all very good, they lose the ordinary fireworks they once were.
So much so that he hasn't come back much in the past few months. He either lives in Xu Ruochu's place or sleeps in the senior sister every day... It's really a long time since he came back.
Looking at Zheng Xiaofan's speechless gaze, Lu Yao was so tired that he was no longer worried and got off the bus:
"Brother Fan, I won't give it to you."
"Go back and rest quickly."
So, when the two parted, Lu Yao climbed up the stairs with some staggering steps and returned home.
The house is empty, but all the furnishings are particularly familiar.
He didn't even take a shower and hit the bed directly.
And this sleep... I really slept until the sky was dark.
I slept until after 12 noon on October 16th, and I never woke up except to go to the toilet.
When he woke up, he did not feel any refreshed, but instead felt that he was sore everywhere, as if he had been beaten by someone else.
After arching on the bed for a while, he walked into the bathroom with his cell phone.
Sitting on the toilet, I started to look at my phone.
There are many people who sent messages on their phones, such as senior sister. She asked him if he had finished last night, asked him this morning why he didn't come, and asked him an hour ago if he got up.
For example, Xu Ruochu asked him if he wanted to have a meal together tonight.
For example, the twins asked him if he was free today and came to the bar to play.
During this period, there were several messages from QQ groups, all of which were tagged him and told him about his next performance.
Yang Ying also sent a text message saying that she was going back tomorrow and wanted to meet her.
The most rare thing is that Shen Wan actually sent a message asking about the school exam.
Then there were other people, You Run, Mr. Xu and others shouting out the news of their trip.
But in his opinion, the news about these people was not as important as Hu Li.
"Baby, are you busy?"
"Reply to me after I finish my work."
“…I haven’t finished my work yet?”
"Are you asleep?"
"Okay, let me tell you, I will take my grandma back at the end of October, go back to my hometown to stay for a few days, and take her to Sanya for winter when the weather is cold."
Seeing these messages, he felt completely better unconsciously and replied:
"I was so tired yesterday, so I fell asleep at Brother Fan. Call me when you wake up."
Hu Li didn't reply. It was 4 a.m. in London time now, so she must be resting.
After replying to her message, Lu Yao sat on the sofa and became stunned.
The RF chip model has come to an end for the time being after yesterday's step.
The time was shorter than he expected.
However, from this perspective... it actually reflects Fuhua's resources from the side, which are indeed stronger than DTD.
Especially for the supercomputing quota, they are really very convenient in computing when they are in the Supercomputing Center of the Magic City.
What's more, the tutor gave himself a green light all the way.
And now... my work has come to an end, and the next time I will apply for funds for further in-depth research. But there should be no other way this year. The approval of such projects is very slow, and it will start at least half a year. No matter what, it will be next year.
Then...
He thought about it.
During dinner last month, the instructor said that he had a project on hand and was working with Huawei.
What's the call?
K chips, right?
Then, the question is here. Huawei should launch K3V2 next year and then face a failure. Although K3V2+ was launched by 13, it is also an upgrade developed by inheriting the basic K3V2 market.
K chip...
Is it K3V2 or KIRIN910?
He rubbed his chin.
(This chapter ends)