Military Industry of Great Powers: Build the Strongest Flanker

Working with He Zhenhua were not only Jia Pengfei and others, but also members of the EDA software back-end physical design team Yang Bochao.

Back-end physical design is closely related to the chip manufacturing process, and the final result of the entire EDA software design is not the chip drawing, but the export of the mask drawing.

Teacher Xiao Zhao really doesn’t want Professor He to live a comfortable life, and hopes that he will work harder on technology exploration to help the core energy processing factory.

In the manufacturing workshop, Zhao Guoqing took out two pieces of paper.

He pointed to the paper placed on the table and said to Professor He: "This is the wafer to be exposed, and what I have in my hand is the mask."

Zhao Guoqing placed the mask on the wafer, followed the photolithography route, and drew a line on the paper below.

"This side is exposed 60%"

Put the mask on the other side again and draw a line on the paper below.

"The other side is exposed 60%"

Between the two lines, there is a long and thin line, which was pulled out by Zhao Guoqing with a fold line, and it is marked: "Exposure 120%."

What does it mean? He Zhenhua is a little confused. The exposure is 120%, which means it is completely exposed, and the photoresist next to it that is not fully exposed is still playing a protective role.

He Zhenhua realized that such a simple picture had something extraordinary. He asked doubtfully: "National Day, what does this... mean?"

Zhao Guoqing put an infinitesimal mark on the gap and said to He Zhenhua: "Taste it, taste it carefully!"

He Zhenhua's eyes gradually changed from confusion to clarity, and his breathing became a little heavier.

A simple painting directly breaks the shackles of light diffraction.

He Zhenhua spoke urgently, his face flushed with excitement, and said: "Through multiple uneven exposures, we can explore more advanced processes!"

Zhao Guoqing looked at He Zhenhua and didn't know what to say. His reaction was a bit slow, and he didn't know if he was qualified.

Zhao Guoqing said: "How's it going? Are you interested?"

He Zhenhua looked at Zhao Guoqing in disbelief and said, "You guy, you still have so much food in your stomach that you can't pour it out at once!"

Zhao Guoqing smiled and said: "Is it useful to pour it out? You guys at Qingda Microelectronics can't even apply the photoresist evenly. I don't even bother to talk about the photolithography machine. It's already in the 1980s. It still uses manual calibration. During the exposure process, You can’t measure it accurately, can you achieve 60% accuracy?”

He Zhenhua was very unconvinced and said: "No matter what, we have solved the one-micron process. The 386 released by Intel last year was still a 1.5-micron process, which is one generation behind us!"

"Just enjoy yourself!" Zhao Guoqing shook his head and said: "This is a commercial process, and the yield rate is not more than 90%. Your one-micron one is a laboratory process at most. Only one or two chips can be used per wafer. It is a good product. The rate is in single digits, the kind that rounds toward zero.”

Even Xineng can now make one-micron chips, but they are not comparable to Intel's 1.5-micron chips.

The types of transistors manufactured in the CPU structure such as registers, caches, and logical operation units are all different. The entire process requires dozens of processes, can be exposed dozens of times, etched several times, and can achieve a yield rate of 90%. This process has already Far beyond us.

Coupled with Intel's accumulation in chip design and manufacturing, and its support of 1.5 micron, the integrated transistors exceed our one-micron process chips.

"You must understand the gap and not be complacent. Professor He, I have given you a way. I am optimistic about you. You will definitely succeed!"

"..."

“Can I write a paper on this?”

Zhao Guoqing nodded and said: "You did the research, of course, but the second author, third author, corresponding author, etc., take your students with you, and if possible, get them a postgraduate degree from Tsinghua University or something? After all? People are interested in these now!”

He Zhenhua said: "Then yours, Director Zhao, I remember you are still a bachelor now!"

Zhao Guoqing took He Zhenhua's hand and said, "Professor He, why don't you take me with you and help me get a graduate degree from Tsinghua University? Will you be my tutor?"

"..."

He Zhenhua blushed as red as his butt and ran out of the door.

Zhao Guoqing shouted from behind: "Professor He, I have calculated that using multiple exposure technology, the manufacturing process can be improved to 180 nanometers, which is at the nanometer level..."

"..."

Zhao Guoqing shook his head. This academic qualification was really troublesome. None of the professors he knew were willing to take him as a student. His request was very simple, he just wanted to get a graduate diploma!

…………

Fast forward to March, and there are more personal matters, and he plans to take his parents over.

Zhao Guoqing discussed this matter specifically with Gao Changming.

"Director Gao, I'm here to recommend talents to you!"

Gao Changming smiled and said: "National Day, this is your first time doing something like this. Tell me, who makes you so interested!"

Zhao Guoqing said: "I was born in 1933, male. I am fifty-four years old this year. I have participated in the Korean War and received second-class merit. I am in good health. I know all the commonly used characters and can also write. Now I am working in the countryside. I think Recommended to the security department!”

"There is also a girl who was born in 1937. She is 50 years old this year. She learned to read from my father and knows most of the words. She has been working in farming. She is very hard-working. She can still do work such as cleaning."

Gao Changming looked at Zhao Guoqing and said, "Your father has learned how to read, Guoqing, the one you can't say is your father and mother, right?"

Zhao Guoqing nodded and said, "Director Gao, you really know the subtleties and guessed it so quickly."

"Bullshit, it's you who reported your family status, okay?"

Zhao Guoqing smiled and said, "Director Gao, that's what I think. Now that we have stabilized, it's easier to take care of them if we take them with us. They have nothing to do when they come here, and they are bored and panic. They always find something to do, isn't that right?" The idea is coming to you!"

"Okay, this matter is not a big deal, I agreed!"

"Thank you, Director Gao. They don't need a salary. Just give them my income. No establishment is required. I don't want to change their household registration. The miscellaneous taxes in rural areas are not much!"

Zhao Guoqing is serious about this. With more than 30,000 yuan a year, he is the richest person here.

Gao Changming said: "Don't worry about this matter. It's all work, and there are people who bully you. Uncles and aunts will be treated the same way others are treated. Our 14th Institute is the most fair..."

Uncle and aunt? What's going on? You are about the same age, okay, this matter is settled.

In terms of life, Zhao Guoqing is very concerned about it. The three-bedroom apartment in No. 14 has been renovated and installed with heating.

Zhao Guoqing bought a 17-inch TV. He must have a washing machine with a dehydration function, otherwise it will be too cold to wash clothes in winter. There is also a refrigerator, which is not easy to buy, and the air conditioner is not found at all, so I can only make do with an electric fan.

There are all pots and pans available, the beds are made of solid wood by carpenters, and the bedding is all ready-made.

After looking around for a few times, there was nothing missing. On March 18th, Zhao Guoqing was ready to embark on the journey back to his hometown...