The ups and downs of life in the Siheyuan

Due to current conditions, the mask plate is carved from alloy copper.

The circuit board does not have high requirements for circuits, so the 1:1 mask board is directly used without enlarging or shrinking.

The size is large enough, so ordinary people can also make masks.

That is to cover the drawn drawings on the alloy copper plate, trace the outline with a graver, and then trace the lines.

Of course, no one in the repair shop can carve such a fine mask now. This one was carved by Li Yuan.

The circuit diagram is the calculation module of the anti-artillery radar.

"Old boy, this is the mask board, which is the circuit diagram of the anti-artillery radar."

. . . . . .

"This is development"

. . . . . .

"The last step is hot air leveling."

. . . . . . .

For 2 hours, Representative Tong remained interested, watching, listening and asking questions carefully.

"Okay, this is the circuit board. In the future, when components are soldered to it, it will be the small box you have seen.

By the way, how is the metal shell processed? "

"Don't worry, production has been arranged, and all the people arranged are elite soldiers and strong generals."

“It must be produced according to my drawings, and the design cannot be changed at will.

Don’t underestimate those small designs. Although they increase the process, they can ensure the shielding effect.”

"Don't worry, I'll keep an eye on it!"

Representative Tong looked at the circuit board curiously, his eyes full of inquiry.

Senior Brother Gong didn't stay long. After finishing his work, he returned to the laboratory.

Representative Tong took the circuit board and began to look at the equipment. The most complicated ones were the exposure, development, and thermal leveling equipment. The others were just pots and pans.

"It's amazing. This is much more efficient than wire welding, and how much easier it is to maintain!"

"I charge you 5 yuan a piece, isn't it expensive?"

"It's not expensive, huh?! How much did you say?"

"5 yuan!"

"You might as well go and grab it. I saw it just now. It's just a few things and the process is not complicated. You just charge me 5 yuan?"

Li Yuan looked at him seriously.

“Old Tong, you know the nature of our laboratory, which relies entirely on state investment, and all output is provided to the state free of charge.

We need to apply to our superiors for every project. Fortunately, our leaders are very supportive of us.

What if one day the new leader does not support our work or no longer approves new projects because the superiors no longer have the budget.

What will we do then? "

Representative Tong fell into deep thought.

“So, we want leaders to see that our laboratory will not only provide free technology, but also hand over profits.

In this way, we can continue to develop healthily.

Our laboratory has invested a lot in researching circuit board technology, and these investments are also costs, so is it still expensive to charge you 5 yuan? "

"It seems, probably, okay."

"How much does a transistor cost? The price abroad is 10 U.S. dollars, which should be 24.6 yuan when converted into soft currency.

Li Lou has more than 2000 COMS, which is equivalent to more than 4000 transistors, which is a US dollar. Converted into soft sister coins, it’s 98.4.”

Li Yuan deliberately ignored the packaging and only counted the number of transistors.

Upon hearing Li Yuan's algorithm, Representative Tong took a deep breath.

"Then how much do you sell us a piece?"

"98.4 yuan"

"You really want it! No, it's not 98.4 yuan, is it yuan?"

Li Yuan nodded, "I don't want 98W, I don't want 9, and I don't want 8. If you want 9800, you can take it home."

"Hahaha, okay, 98 is good."

The price contrast is so huge that Representative Tong has been fooled by Li Yuan.

In fact, Li Yuan did not fool him. In 1960, an engineer in America designed a chip integrating two transistors, which sold for as much as $2.

The current 98 yuan chip, and it is such a high-end chip, 98 yuan is definitely a bargain price.

If the West were to know that China possesses such advanced chips, they would be shocked and it would bring about a series of serious consequences.

Of course, the higher-ups are also aware of these situations, and when they are used in the future, there will be a dedicated person responsible for destroying the small box in case of danger.

Taking the quotation and circuit board, Representative Tong left.

Li Yuan's next work focused on the design of photolithography machines.

One month later, the ranks of all personnel involved in circuit board manufacturing technology research were raised by one level.

Li Yuan also rose one level to level 15, Senior Brother Gong was promoted to level 16, and the other four people also rose one level.

Others in the laboratory are a little jealous, which also stimulates their enthusiasm for work and looks forward to producing results as soon as possible.

The reason why Li Yuan upgraded is actually not entirely because of the circuit board manufacturing technology, but because of the small box.

Someone originally suggested that he be promoted to three levels in a row, or simply be named a member of the academic department.

However, after careful consideration, his superiors decided to seal up his achievements for the time being, and when the conditions are ripe, he can cash them in with interest.

They were promoted too quickly and they were afraid of exposing Li Yuan.

In fact, Li Yuan doesn't care much about these. If he needs money, he can make a lot of money by just finding a project after the project is re-opened in the future.

He doesn't even care about his official position. Studying technology and studying technology freely is his greatest preference.

The functions of the system are more conducive to his technological breakthroughs.

Next, Li Yuan's life was very fulfilling.

During the day, he guides the construction of circuit board production lines in a repair shop, then goes to the laboratory to participate in the research of photolithography machines, and takes his work home with him after get off work.

Every night, Li Yuan draws pictures and writes documents.

Yang Ting was nestled beside him, either working as a female celebrity or reading a book.

The relationship between the two became sweeter and sweeter. Under the nourishment of her inner breath, her skin changed greatly, making friends around her surprised by her changes.

Time soon entered June, the weather became hot, and everyone changed into single clothes.

In the laboratory, everyone looked at one of the dust-free workshops with excitement.

There was a device the size of a double-door refrigerator inside, with Li Yuan and Gong Liming standing next to it.

This is a semi-automatic photolithography machine.

It mainly consists of three parts: light source, lens group and tray.

The light source is a high pressure mercury lamp.

Lens group for masking pattern microcosms and projecting light onto the wafer on the tray.

The movable pallet is more like an automatic precision lathe with two axes of plane movement.

The pallet can hold wafers up to 8 inches.

With the starting point fixed, he can move one space regularly based on the set data.

The specific size of a grid can be set.

Therefore, except that the pallet movement is automatic, all other processes need to be completed manually.

Everyone looked at this machine with the unique luster of aluminum alloy in their eyes, and their eyes were full of obsession.

It's so beautiful, and the whole design looks completely different from all current devices.

In order to reflect industrial beauty, Li Yuan incorporated industrial aesthetics into the appearance design.

All my years of aesthetic training have been put to use today.

In this era that only focuses on function and practicality, HB-GKJ100 is definitely an epoch-making product.

The two made concessions, and finally Senior Brother Gong stepped forward and started the machine.

Suddenly a beam of light passes through the mask, enters the lens group, and is projected onto the wafer.

After 30 seconds, the light is blocked, the wafer automatically moves one frame, and the light continues to be projected.

The lithography machine was working normally, and Li Yuan made a gesture to the people outside the glass.

The people in the laboratory burst into cheers.