Chapter 578 "0001"

The expert group carefully checked the questionnaire and scoring documents, and only printed them out on the computer after they felt that there were no problems.

While fighting, one expert did not forget to praise Gao Zhendong: "Chief Engineer Gao, these things you made are really useful. It was not so convenient in the past."

"Haha, as long as it's convenient, as long as it's convenient. I think of so many ways, isn't it just to make it more convenient for everyone?"

After finishing the materials, the expert group returned to the venue and distributed the materials to everyone. However, to everyone's surprise, Gao Zhendong also sent the scoring criteria to all interested manufacturers.

"Mr. Gao, are we going to send this to them too?" In their opinion, this was simply sending all the answers to the candidates.

"Well, yes, it's an open-book exam. This is completely open, fair and just." Gao Zhendong explained simply.

This set of operations made the chief engineer of the 12th Ministry of Machine Building's eyes light up.

"Well, that's interesting. You should remember Comrade Zhendong's process. In future similar technical competitions, we will use a similar approach. This is much better than the chaos at the beginning of today."

As for economic competition, no one thought about it or mentioned it much at that time.

Soon, the manufacturers of the two products finished filling out the questionnaires and handed them back for everyone to score. The results were very clear.

When it comes to LED, 1218 is far ahead. Even though their silicon workshop has been taken away, the remaining semiconductor production capacity still far exceeds that of other factories.

Especially in the production of diodes, they won the Lightning Technology Award at the beginning of the year, which is very convincing.

There is nothing other factories can do about this result. They just can't compare. Unless the leaders want to make industrial layout or something, Factory 1218 is the most suitable one based on the hard conditions.

When the LED results came out, everyone had no objection and the leaders also breathed a sigh of relief. Gao Zhendong's method was good, fair, just and open. If they lost, they lost, and there was no room for trouble.

What if you want to deliberately tilt it when the work requires it? Then you can deal with it in the setting of conditions.

I have long known that Gao Zhendong is not only a technical expert, but also a good manager, and his reputation is well-deserved.

With a satisfied mood, everyone gave scores for the tape recorders. Unlike the LEDs, this time, the Haihekou Record Player Factory and the Cultural Audio-Visual Corporation were very close.

The Cultural Audiovisual Corporation is in the propaganda department. The main reason we invited them this time was because of the issue of tapes.

Both were large organizations in their respective professional fields and each had their own strengths when it came to the tape recorder issue. In the end, the leader of the 12th Ministry of Machine Building made the final decision.

The tape recorders were still produced by the Haihekou Record Player Factory, but the matter of magnetic tapes was handed over to the Cultural Audiovisual Corporation. To be honest, the 12th Ministry of Machine Building didn't want to touch things of this nature. It was better for the audiovisual company to have its own propaganda department to check them.

After dealing with this matter, Gao Zhendong was very happy. This meant that in addition to using the money himself, he now had two more ways to make some money. It was worth spending half a day on this matter.

Before he left the 1218th Ministry of Machine Building, the director of Factory came to greet him and thank him.
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A few days after this matter was dealt with, Factory 1274 called. The first formal full-process trial production of integrated circuit chips had reached the packaging stage, and Gao Zhendong was asked to preside over the bonding of the first pin, which was actually just the gesture of soldering a wire.

This is why Factory 1274 did not appear at the LED factory selection site. Since they already have integrated circuits, they have no interest in LEDs, and all their recent energy and resources have been spent on this matter.

And they also know that even if they are interested, it is impossible for the higher-ups to continue to let them make LEDs. It is impossible to put all eggs in one basket.

Ever since Gao Zhendong completed the last board of the photolithography machine in the first quarter and sent it to Factory 1274 along with the machine and the workers, the integrated circuit technology of Factory 1274 has been completely formed.

After a period of integration and debugging, just as the second quarter of 61 began, they had completed the entire integrated circuit process and started the first formal trial production.

After material preparation, P-area lithography, gate lithography, contact lithography, metal lithography, and pad lithography, and adding different oxidation, deposition, diffusion processes in between each lithography, as well as cleaning time, it is actually some time away from starting trial production.

The bonding of leads and pads, as well as the subsequent packaging, are the final steps in chip production and are also the iconic steps.

Therefore, Chief Engineer Gao must be in charge of bonding the first pin of the first chip, as he will not be needed in the future. It is estimated that his skills are not that good, and it will be troublesome for other comrades to modify it if he does too much.

After receiving the call, Gao Zhendong put down the IC principle circuit PCB board that had just been delivered from the electronic laboratory and ran downstairs. While walking, he happily called out to the driver to take him to 1274 quickly.

Seeing Gao Zhendong's happy face and running out in a hurry, Director Yan laughed out loud. Judging from Mr. Gao's expression, there must be some good news.

The driver was driving fast and steadily, but Gao Zhendong felt that the speed was a bit slow.

After much patience, the car stopped at the gate of Factory 1274. The security guard at the gate of Factory 1274 was very familiar with Gao Zhendong. When he saw his face, he immediately waved and let him pass.

The car drove straight to the outside of the integrated circuit process test workshop. Gao Zhendong got out of the car without even bothering to close the door. He hurried into the building in two steps at a time.

Director Lu and Chief Engineer Lu of 1274, along with a group of comrades in charge of integrated circuit technology, as well as Fang Yinghong, Yi Zhonghai, Ma Juan, Qin Huairu and others who came to support from the Third Rolling Mill, have already changed into protective clothing and are eagerly waiting.

Seeing Gao Zhendong rushing in, Director Lu laughed out loud: "Boss Gao, you're finally here! Everything is ready!"

Gao Zhendong shook hands with him and said, "I got the call and rushed here as fast as I could. Did I get anything done?"

Chief Engineer Lu smiled and said, "No, no, that's just right."

Director Lu waved his hand and said, "Change your clothes!"

They had already changed into protective clothing and were waiting. Gao Zhendong quickly changed his clothes and entered the production area of ​​the workshop. All the equipment was running. Although the first batch of the first piece was waiting for Gao Zhendong to take over the first line, the subsequent products of the test batch were still being produced on the assembly line.

Everyone came to the bonding machine. Although it was called a bonding machine, it was not as high-end and sophisticated as Gao Zhendong saw on the Internet later. To put it simply, it was a soldering station with a high-power magnifying glass.

It's fine as long as it works. The production efficiency of the entire process cannot be compared with the future, so manual work is enough.

Director Lu and Chief Engineer Lu extended their hands and said, "Chief Engineer Gao, please come in!"

Gao Zhendong is not modest and never shirks his responsibilities.

He asked the production worker next to him how to use the machine, then sat down at his workstation. Everyone looked at him with excitement.

After so much hard work, it seems that the fruits of our efforts are about to come.

Through a magnifying glass, the surface of the chip that has been fixed in the plastic base appears colorful and very beautiful.

On the edge of the chip, there are two rows of metal-deposited crimping blocks, corresponding to the pins on both sides of the package.

Gao Zhendong operated the equipment carefully, placed an enameled wire on a crimping block, and used his other hand to operate the welding equipment and press it onto the enameled wire.

A puff of smoke rose, and the enameled wire was firmly fixed on the crimping block.

Gao Zhendong followed the same method and soldered the other end of the wire to the pin of the chip package.

He stood up and said with a serious smile, "I have accomplished my mission! Come, check it out."

A worker stepped forward, looked through a magnifying glass, and announced loudly: "It passed the inspection!"

"Wow..."

The applause rang out like a tide, and everyone looked at Gao Zhendong, laughing and applauding.

This made Gao Zhendong feel a little embarrassed: "Haha, well, I just soldered a wire, it passed, it passed."

Thinking about my own actions, there is a serious suspicion that this is a show.

Director Lu applauded and said, "Boss Gao, without your long-term guidance and hard work, this wire would not be soldered. Don't you agree?"

“Yes~~~~~~”

All the comrades at the scene laughed.

Gao Zhendong himself laughed. What a great feeling!

However, only one wire was bonded, and the rest of the work was completed by the comrades from Factory 1274.

An experienced worker is an experienced worker. The comrades from Factory 1274 quickly connected the remaining dozen or so wires and then began to pour epoxy resin.

Since it has to be fixed anyway, it is better to directly inject glue. This is the solution thought up by the comrades from 1274. In this way, the chip itself is well reinforced.

They chose an insulating resin formula with good thermal conductivity and a thermal expansion coefficient that is consistent with that of the wire. After testing, the effect was very good.

Contrary to people's intuitive belief that glue potting will affect the heat dissipation of the circuit, glue potting is actually beneficial to heat dissipation. Without active heat dissipation, the thermal conductivity of air is extremely poor.

It’s just that this glue is a little bit particular. It has good thermal conductivity, which is more conducive to heat dissipation, and the thermal expansion coefficient is consistent with that of the wire, so the wire will not be pulled apart during thermal expansion and contraction.

After filling the glue, the workers also glued the package cover on. In this way, after the glue solidifies, the chip will be as solid as a rock.

On the front of the packaged chip, the first line reads "SZ61000", which is a four-two-input NAND gate.

The second line is 6114, which is the production date, indicating that it was produced in the 1961th week of 14.

As a bulk digital circuit chip, the entire SZ61 series does not have a production serial number, but this one is different.

The skillful worker hand-carved the third line of numbers on the surface of the chip.

"0001".

This is the only one of the SZ61 series digital logic ICs produced in billions that has a production serial number.

This chip has never been used and was later displayed in the "Information Industry Museum" with a very simple introduction.

"my country's first integrated circuit chip."

(End of this chapter)