A nation's industrial development begins with junior engineers.

It must be said that the term "national destiny" is quite mysterious.

Just like the motherland in the past, it could always find a glimmer of hope in the cracks when it was being surrounded and blocked.

Now, that mysterious, predestined luck has reappeared.

The little tuft of feathers flapping its wings vigorously, tinkering with the transistor computer and the futuristic modem, should have alerted both the bald eagle and the bear.

But at this strange juncture, while the East Hans cat kept running westward, the Russian bear, who believed in "great strength makes bricks fly," slapped his forehead and thought: You want to run away? I'll just build a wall to block you, and so the plan for that wall was started.

On the other hand, the large-scale exodus of Eastern Hansmiao led the Western camp, led by the United States, to ridicule the United States. Enraged, the United States unilaterally tore up the three-year nuclear test ban agreement between the two countries and began to tinker with the "Big Tsar Bomba" again.

The bald eagle saw that everyone had the same thing, so it decided that if they played it, they would play it too. In an instant, the tension between the two sides reached an unprecedented level, and the related competition entered a new climax.

The ripples created by China, a relatively insignificant country, have been perfectly concealed beneath the turbulent waves of the global situation.

It's perfect, so you can do whatever you want with it.

The bigger the storm, the more expensive the fish!

Moreover, no one could have imagined that this fish would one day become a being like the Kunpeng.

However, becoming a Kunpeng comes at a price.

Just like now, in a conference room of this underground electronics factory, the people inside are clearly divided into two factions.

"Why can't bipolar semiconductors work? We've even developed a high-performance variant. Unlike ordinary PN junction isolation, this heterojunction bipolar transistor has obvious advantages in high frequency and high speed!" Dr. Lan Ying proudly held up a glass tube in her hand and proudly showed it to Dr. Xi De in front of her.

"Can you make small ones? Can you mass-produce them?" Dr. Sid asked, his hands tucked into the large pocket of his white coat, feeling around for something.

"Hmph! We have the upper hand when it comes to bipolar integrated logic gates!"

"Oh, can you make small batches? Can you produce large batches?"

"Bipolar types are fast! Once a circuit is formed, the highest speed reached was 35MHz!"

"Oh! Yes..."

"Stop! Can we not talk about large quantities first?" Dr. Lan Ying looked at Dr. Sid, her teeth itching with anger.

“Well, let’s talk about the circuit design. If you’re changing the circuit design for a bipolar circuit, you’ll need to change the process parameters, such as doping concentration, etching temperature, diffusion time, and oh, and the diffusion source… Tsk tsk, let’s not even talk about the temperature, just the time, how are you going to solve that?” Dr. Sid pulled out a small notebook from his pocket and went through the items listed on it one by one.

"Hmph! It's just a technical challenge! A long journey is nothing to us, we are not afraid of any difficulties!" Dr. Lan Ying waved her hand at her comrades behind her, her tone firm!

This time it's Dr. Sid's turn to grind his teeth. Lan Ying, you with your thick eyebrows and big eyes, you've actually managed to incite the masses.

"Hey, suddenly remembering something," Dr. Lan Ying's eyes lit up: "Hey, you've been arguing with me for so long, so why don't you show me the metal-oxide-semiconductor product you've been hyping up!"

"Hmph! Look what this is!" Dr. Sid rummaged around and pulled out a small black board with several crisscrossing gold lines on it.

"No way, you actually developed MOS technology into a finished product?"

"Well, it's only half-finished! But our team has already taken a big step forward!"

"Ha! After all this talk, you're arguing with me about a half-finished product?" Dr. Lan Ying tossed the shiny transistor in her hand back and forth.

"Hmph! MOS has a simple manufacturing process and can be mass-produced. It doesn't require the isolation PN junction of a bipolar transistor, so integrated circuits made with MOS inherently have a higher integration density than bipolar transistor circuits of the same size!"

"You don't have a finished product!"

"Although the circuit board made of MOS has a lower frequency, 20MHz is enough to meet the current needs of Big Yellow! In fact, Big Yellow doesn't even need such a high speed right now!"

"You don't have a finished product!"

"Can we talk this out properly? MOS is the best way to mass-produce integrated circuits!"

"Okay, Dr. Sid. Although you've improved my silicon crystal pulling process, you still don't have a finished product!"

"Ah~~"

This time, it was Dr. Sid's turn to go crazy...

……

In the corner outside the conference room, Lao Wang and Jiang Xia huddled together in a small group.

"Seriously? Researchers are this passionate about their work? You seemed to have drawn up the blueprints so easily?"

"That's because I'm standing on the shoulders of giants. That's the essence of scientific research—constant trial and error, constant discussion... Scientific research isn't easy. Just choosing a research path is enough to make people struggle..." Little Ao Mao sighed with emotion as he looked at the crowd still arguing inside.

"Hey, camera! Take a picture, take a picture. If your son wants Mr. Sid to write a recommendation letter, you can't rely on connections, but if you take out this photo, maybe it'll work..." Little Doe smiled slyly as he looked at Mr. Sid and Ms. Lan Ying's unseemly demeanor.

Old Wang looked puzzled.

what?

"Smack!" A big potsticker landed on Jiang Xia's head, while Teacher Pei Shu stood behind them with a half-smile.

"You're in the mood to make sarcastic remarks, so it seems you're quite confident about this debate over craftsmanship?"

"Well, to be honest, there are some. But I think both of them are right!"

Jiang Xia's ear was pinched rudely by Teacher Pei Shu: "Are you a master of balancing things? Wanting both sides, isn't that being hypocritical?"

Jiang Xia cried for Xi Xi...

This isn't Jiang Xia being biased. Although later generations, based on technical and economic perspectives, unanimously embraced MOS technology, bipolar transistors still have their own advantages for certain specific circuits.

"Teacher Peishu, please take a moment, let me think about it some more..."

"Don't drag this out too long... These two groups have been arguing for a while now. As the chief designer of the transistor computer, you still need to take responsibility!"

"Although it's difficult!"

After saying that, Teacher Peishu stuffed a large pile of documents into Jiang Xia's arms.

"These are data summaries of the two teachers' different technical solutions. Show us a way out, we're in a very tight time!"

……

Is it urgent? Of course it is. Although it wasn't explicitly stated, Jiang Xia knew that the choice of this route would determine the direction of national investment over the next five years.

Should we continue using the already successful bipolar transistor process, or take a big leap and risk making things worse by directly researching MOS?

Here's a little-known fact: the theory behind MOSFET field effects was proposed as early as 1930. Just like the concept of electric vehicles was proposed in the early 20th century, but they weren't widely adopted because the manufacturing process couldn't keep up!

The craftsmanship is also a source of dilemma for Jiangxia.

Thanks to the chip wars of later generations, many bloggers online have been working hard to popularize lithography machines and related chip manufacturing processes, which has allowed Jiang Xia, a mechanical engineer, to understand that there are PMOS/NMOS/CMOS within MOS.

They know the masterpieces of these techniques perfectly, but how to actually implement them is a bit of a mystery...

Jiang Xia held his head, trying hard to recall the science videos he had watched.

"What were the key steps again? After the wafer fabrication was completed, there seemed to be some oxide layer growth, then photolithography, ion implantation..."

"It's so frustrating! I know the names of these steps and the functions they need to achieve, but I don't seem to have remembered any of how to implement them!"

"Alright, just say as much as you remember. Maybe there will be an unexpected surprise. That way, the grand show put on in front of you seniors won't have been in vain..."

Teacher Peishu opened his mouth in surprise.

"Did you see it?"