Chapter 264 K Chip
“The design process of the satellite navigation terminal launch front-end chip is shown in this figure. After the chip circuit design and pre-simulation are completed, the circuit layout is provided. Layout design is essentially a process that is used for physical description in order to create an engineering netlist, so its accuracy is highly required. It must comply with the constraints imposed by the manufacturing process, design process, and performance requirements proven feasible through simulation. Therefore, it will go through three processes next…”

It’s the same conference room, the same people.

Lu Yao held his complete model and explained the PPT, standing in the conference room and talking incessantly.

He said everyone was listening carefully.

Except for Zheng Xiaofan who just covered his mouth and yawned.

He really didn’t understand.

I even felt a little urgent and wanted to go to the toilet.

I looked at the time speechlessly…it was already past 4pm.

The report started at 2:2 and lasted for nearly hours.

Lu Yao seemed not to have finished yet.

From the initial design ideas to various simulation data…I think that’s what it’s called?

There are also a lot of formulas and various charts, which are explained one by one.

This boy is so eloquent.

How on earth did they manage to do it for more than an hour without stopping?

But this time is too hard to bear.

Or maybe it’s just that intellectuals are terrible. How on earth do they come up with all these high-tech things using these boring numbers and charts?
Gee…

He sighed, feeling bored.

Until… a little after five o’clock, he finally heard Lu Yao say:

“So, in summary, the Beidou satellite navigation system is my country’s main strategic infrastructure and a reflection of the country’s comprehensive strength. It is not only related to national security issues, but also permeates into people’s daily lives. It is a typical military-civilian integration industry. At present, the country is vigorously developing the integrated circuit industry. It can be seen that integrated circuits will flourish in the next few decades and realize independent innovation in the field of integrated circuits.

Therefore, in such an environment, the RF transmission front-end chip designed for Beidou-3 satellite navigation terminals is the general trend and has important significance for the application of Beidou navigation terminals. This model is based on the most advanced CMOS technology, thanks to its perfect integration with the digital baseband, and is designed with “low obstruction, low power consumption, high integration, strong penetration, and fast response” as the core idea.

At the same time, I believe that with the advancement of technology in the future, the cutoff frequency will become higher and higher. This system-on-chip that integrates RF and baseband will be a key research direction in the field of integrated circuits…”

Zheng Xiaofan cheered up.

That’s the summary, right?

Is it over?

As he was thinking, he suddenly saw another PPT with various digital symbols written on it appear on the screen.

“The data in the figure are the parameters of a highly integrated transmitter chip designed for Beidou-3 satellite navigation terminal applications based on COMS technology. The chip integrates LPF, Modulation Mixer, VGA and DA. The main functions are as follows…”

The corner of his mouth twitched.

besides! ?
Bro, are you not done yet?

And it turns out that it’s not over yet.

Lu Yao spent nearly 15 minutes introducing the various modules of the chip set again using the numerical parameters obtained after simulation, and then said:
“I think there is still a lot of room for improvement in this model. First of all, in the process of pre-simulation, the linearity of the chip needs to be improved, so its linearity needs to be further optimized.

Secondly, in the post-simulation process, the performance parameters of the modulation mixer, third harmonic suppression and local oscillator suppression, are quite different from the pre-simulation results and need to be further optimized.

Furthermore, compared with the pre-simulation, the post-simulation results of the variable gain amplifier and the driver amplifier linearity also deteriorated a lot, and further parameter adjustment and optimization are required.

Finally, we have only completed the design and simulation of each module, so the next step is to complete the system-level simulation verification of the chip, and then proceed to tape-out. After the processing is completed, it is necessary to test the various indicators of the RF transmission front-end chip to verify the relevant performance of the chip. After the test is completed, a test report is prepared to summarize the problems of the chip and find out the reasons to provide a basis for the next chip optimization design. “

Having said that, the PPT jumps again.

But this time there was no content on it, just four big characters on top: “End of Report” and below that was a thank you.

Sun Liqiang’s name comes first, followed by Bai Yao, third is Li Xiang, and fourth is Shi Ming.

He wrote down all the participants of this project, including Wang Tianshu, who was ranked after Shi Ming.

As this page of PPT appeared, Lu Yao nodded:
“My report is over, thank you everyone.”

“…”

“…”

“…”

No one applauded.

In fact, this is normal. After all, no one is here to cheer for him.

After listening to the three-hour report, to be honest, the amount of information was too much and many people needed to digest it.

And verify the authenticity and accuracy of this report in your own unit.

So, after a dozen seconds of silence, the leader of the National Security Bureau that Lu Yao had met last time said:

“So, Luyao, am I to understand that the model has been designed?”

“The initial model has been designed. The next step is to verify the theory and then send it out for tape-out. After the chip comes out, physical testing will be carried out, including a series of environmental tests…”

Having said this, he paused, and his brows became bright.

“To be honest, I have confidence in my model. Although it is only the first version, I believe that the leaders will feel its value after verification. And next, if possible, I will apply for scientific research funds from the school to further deepen the model. However, at this stage, more professional people are needed to do it, and I am really a little…”

He smiled bitterly:
“It’s a huge workload. I started researching this model last year after I started systematically studying semiconductor design. It took me a whole year to complete this prototype. If I continue, it really won’t be something I can do alone. But fortunately, the prototype is already there, and the next step is just verification.”

When he said this, his mind was filled with the days and nights he had worked hard on this model.

Every code, every piece of data, the memory of the past is intertwined with the present, old problems and new problems appear in an intertwined manner, and are solved, verified, and thought about…

All of this was done to build this RF chip, which was developed at least six years ahead of schedule.

Make navigation more accurate, positioning more precise, penetration stronger, signals more stable…all this epoch-making research finally appeared in our hands.

He was not so excited even the day before yesterday, on October 10, when he got the imitation data.

But now, standing in front of this group of people, his voice gradually began to tremble.

Trembling, he sighed deeply and said sincerely:

“To be honest, completing this job by myself is… really tiring. Too tiring…”

Hearing his words, many people looked up from the more than 30-page report in the notebooks in front of them.

Including Zheng Xiaofan, everyone suddenly realized… the young man in front of them was, strictly speaking, not even 20 years old.

He is indeed a genius.

But behind the genius…

But behind this report of more than 30 pages is a whole year of hard work day and night.

Indeed…this kid…has worked hard.

Seeing him leaning on the table with his hands and looking exhausted, the middle-aged man from Guoan thought for a moment and said:
“Does anyone have anything else to ask? If not, let Lu Yao go down and rest for a while.”

“…”

“…”

“…”

No one has an opinion.

So, after getting a signal from his leader, Zheng Xiaofan took Lu Yao back to his office.

One cup of tea, two cups of tea, and finally Lu Yao simply gulped down two more cups of water from a paper cup. Then he leaned back on the sofa and closed his eyes.

“…”

Zheng Xiaofan glanced at him, thought about it, and closed the report on the twins and Luo Xuewei’s recent movements on the computer.

I originally wanted to talk to him about this, but now… just let him have a good rest.

Sure enough, Lu Yao started snoring a minute later.

Fell asleep.

He was even more speechless, but he also knew that there were only two reasons why a person could fall asleep as soon as he sat down.

Either the brain is overworked or the body is too tired.

He was really tired.

So he took out the pillow he used when he spent the night in the office from his cabinet, laid it out, and helped Lu Yao lie down on the sofa.

I waited until the leader came in.

He stood up subconsciously.

The middle-aged man waved his hand, turned his head and glanced at Lu Yao, then asked:
“tired?”

“It should be. Extremely tired. I am in deep sleep now.”

Hearing this, the middle-aged man nodded:
“His research data has been taken away by these companies. When he wakes up, tell him to have a good rest for a while. I just asked, and it seems that it will take about two or three months to make the chip and test its service life. It is October now, and according to what he said, it will take until next year to set up a project to continue research.”

“Well… I wanted to talk to him about Vesna Luo.” “Don’t talk about it.”

The middle-aged man waved his hand:
“Let’s talk about it in a few days. His brain is precious. If it is really exhausted, we will not be able to handle the trouble caused by Fuhua. Wait until he wakes up and take him to a good meal. As for the research, you can tell him to wait.”

“Ok.”

After Zheng Xiaofan nodded in agreement, the middle-aged man left.

He was not in a hurry to eat. He was just busy with the work at hand while listening to Lu Yao’s snoring.

In their line of work, overtime is the norm and not uncommon.

But after finishing the work at hand, he found that Lu Yao had not woken up yet, and he was speechless.

I looked at the time and found it was already past 8 o’clock.

He guessed that the other party had had enough rest for the time being, and if he really wanted to rest, he could just find a place to have a good vacation.

So he stood up and walked to Lu Yao:

“Lu Yao.”

“Snoring…”

“Lu Yao, wake up, don’t sleep anymore.”

“Snoring…”

Seeing Lu Yao still sleeping and snoring, he was speechless and decided to help him up and wake him up.

Under his operation, Lu Yao finally opened his eyes in a daze.

After looking at Zheng Xiaofan…

“what?”

“…Go home and sleep. Are you hungry? Do you want to eat?”

After hearing Zheng Xiaofan’s words, Lu Yao’s hazy consciousness gradually returned.

After thinking about his words belatedly, she shook her head:

“I don’t want to eat anymore. I’m tired and want to go home and sleep.”

“Okay. I’ll take you there.”

“Ah.”

After struggling to stand up, he felt dizzy and followed Zheng Xiaofan in a daze. When he opened his eyes again, he had already arrived downstairs of his home.

“…Why is it here?”

He was stunned.

Zheng Xiaofan said puzzledly:

“So where do you want to go? This isn’t your home?”

“It’s my home…but aren’t my mom and dad on a business trip again?”

Dad didn’t mention it, but he and Mr. Chen have been in Yanjing for almost the past few months.

My mother was transferred to Kunshan under deliberate arrangement.

Ms. Chen was actually quite speechless about this sudden lateral transfer, but what could she do…after the lateral transfer, she was promoted.

After much consideration, Ms. Chen finally accepted the transfer. And because Kunshan was too far from the main city of Shanghai, she could not commute and had to live there.

This is actually contrary to Ms. Chen’s expectation of taking care of her husband and children every day.

But… that’s how people are.

When you don’t have it, you want to have it, but after you have it, you feel it’s nothing.

At first, she was worried about the wind and rain because she had to drive a long truck. But now it is different. Although her husband doesn’t come back often when he is on a business trip, for her, it is actually no different from the first half of her life. Besides, the children are grown up and not only independent, but most importantly, they have started to make money inexplicably. The band formed by the children… goes to other places to perform every weekend, and can make 20,000 to 30,000 yuan a month…

After Ms. Chen gradually adapted to this rhythm, she accepted the transfer.

Even though the family members are separated physically, as long as their hearts remain together.

So, in the past few months, a lot of changes actually took place in Lu Yao’s family.

Although… everything is good, it has lost the ordinary atmosphere of the past.

As a result, he rarely came back in the past few months. Every day he either stayed at Xu Ruochu’s place or slept with his senior… It has been a long time since he came back.

Seeing Zheng Xiaofan’s speechless eyes, Lu Yao, who was really tired at the moment, didn’t bother about it anymore and got out of the car directly:

“Brother Fan, I won’t send you off.”

“Go back and rest quickly.”

So the two of them parted ways, and Lu Yao climbed the stairs with a somewhat unsteady step and returned home.

The house was empty, but all the furnishings were exceptionally familiar.

He didn’t even take a shower and just fell headfirst onto the bed.

And this sleep… was really a deep sleep.

I slept until about 10 noon on October 16th, and during that time I did not wake up except to go to the toilet.

When he woke up, he did not feel refreshed at all. Instead, he felt sore all over, as if he had been beaten up by someone.

After lying on the bed for a while, he walked into the bathroom with his cell phone.

Sitting on the toilet, he started looking at his phone.

There are quite a lot of people sending messages on my phone, such as my senior, who asked him if he was done last night, asked him why he didn’t come this morning, and asked me if I got up an hour ago.

For example, Xu Ruochu, asked him if he wanted to have dinner together in the evening.

For example, the twins are asked if they are free today to come to the bar.

During this period, there were several messages in the QQ group, all of which tagged him and told him about his next performance.

Yang Ying also sent a text message, saying that she would go back the day after tomorrow… oh no, it should be tomorrow, and wanted to meet him.

The most surprising thing was that Shen Wan actually sent a message asking about the school exams.

Then came the news that other people, You Run, Xu Gongzi and others were shouting about going out to play.

But in his opinion, the information from these people was not as important as that from Hu Li.

“Baby, are you busy?”

“Reply to me when you’re done.”

“…haven’t you finished yet?”

“are you asleep?”

“Okay, let me tell you something. I’ll take my grandma back at the end of October and stay in my hometown for a few days. When the weather gets cold, I’ll take her to Sanya to spend the winter.”

After seeing these messages, he unconsciously felt better and replied:
“I was so tired yesterday that I fell asleep at Brother Fan’s place. Call me when you wake up.”

Hu Li didn’t reply. It was already 4 a.m. London time, so she must be resting.

After replying to her message, Lu Yao just sat on the sofa and started to daydream.

The RF chip model has come to a temporary end after yesterday’s step.

The time was shorter than he expected.

However, from this perspective…it actually also reflects from the side that Fuhua’s resources are indeed stronger than those of the TV University.

Especially the supercomputing quota, it is really convenient for them to have computing resources as they are based in the Shanghai Supercomputing Center.

What’s more, my mentor gave me the green light all the way.

And now… my work has come to an end, and next time I should apply for funds for further in-depth research. But this year I probably can’t do it, the approval of this kind of project is very slow, at least half a year to get started, at least next year.

So……

He thought about it.

While having dinner last month, my mentor told me that he had a project on hand that was a collaboration with Huawei.

what do you say that is?

K chip, right?

So, here comes the question. Huawei should launch K3V2 next year, and then face a failure. K3V2+, although launched in 13, is also an upgrade based on the basic foundation of K3V2.

K chip…

Is it K3V2 or KIRIN910?
He rubbed his chin.

(End of this chapter)