Countercurrent 1982

Chapter 1244 Successful Trial Production

December 12st is a day worth celebrating for Tianyin Chip Factory.

At this time, in the production workshop of the chip factory, more than 60 management and technical personnel gathered together to witness the birth of the first finished chip of the chip factory.

Wu Gang and other technicians carefully operated the machine and started a complete chip production process.

The chip production line introduced by Duan Yun has a complete silicon wafer production capacity. After the silicon dioxide is purified, it is sliced ​​to obtain silicon wafers, and then enters the next stage of production.

With the silicon wafer, under the operation of the staff, a layer of photoresist is coated on the wafer, and then it is irradiated, corroded, infiltrated, irradiated, corroded, infiltrated, and repeated continuously, building a complex structure like building a house. Integrated circuits, this is the process of the birth of a chip.

At this time, in the huge production workshop, dozens of people all looked dignified, held their breath, and kept their eyes on the operation of the machine, making the atmosphere very tense.

"Clap."

With a clear sound, when Wu Gang took out the processed chip wafer from the machine, everyone at the scene immediately surrounded him.

Although the finished product has been produced, it does not mean that the chip has been successfully produced. Next, chip mounting, bonding, plastic packaging, electroplating, coding, and the final electrical test and aging test of the finished product are required.

But no matter what, when everyone saw the first chip produced, everyone was very excited. For this chip, the technicians of Tianyin Electronics have gathered too much time and effort, and now it has finally come to fruition stage.

"Take it for testing right away." Duan Yun picked up a chip and glanced at it, then gently put it in the dustproof box, and said something to Wu Gang beside him.

"Okay." Wu Gang responded, and immediately took the first batch of chip wafers produced, put them in a dustproof box, and headed to the laboratory.

Duan Yuncai currently uses a 5-inch, 3-micron process technology. The thickness of each silicon wafer is 625 microns and the area is 112 square centimeters. It can engrave 74 chips at the same time. Unqualified products, so each wafer can produce about 58 chips.

In addition, if the processing technology is not up to standard, chips with unqualified performance can only be treated as waste products, which will undoubtedly increase production costs.

The competition of chips is actually the competition of performance and cost. The official production line is just the first step. How to improve the production process to improve the pass rate and reduce the production cost is the key to the survival of a chip company.

However, in chip companies, it is very difficult to maintain a high pass rate of finished chip products.

As far as Duan Yun currently has mastered the three-micron chip manufacturing technology, each chip needs to go through at least nearly 1000 steps to complete.

If a certain step has a 99% pass rate, such as engraving a hole, the diameter of the lower bottom cannot be less than one-tenth of the top diameter, and if it is smaller, it is not qualified.If the pass rate of each step reaches 99%, the pass rate after processing 1000 times is basically zero.

If the pass rate is 99.9% each time, then 0.999 to the thousandth power becomes 52%. This is not acceptable. A chip production company must achieve a pass rate of 80% to 85% to make money, and a pass rate of less than 80% will lose money. .

The passing rate of each step must be 99.99%, and it can only reach 90% after a thousand times.

Now the most advanced chip production line can achieve a pass rate of 92%. That is to say, on the other hand, there are more than 1000 steps, and each step requires 99.99%. It is unimaginable that each hole must be cut to the accuracy of 100/1 to 10/[-] of a hair.

The R&D personnel present also understood this truth, so no one celebrated loudly at this moment, but planned to see the performance and pass rate of the finished product.

Duan Yun's chip testing room is definitely the highest level in China, with a full set of equipment imported from Japan's Toshiba. Compared with the production line, the chip testing equipment that Toshiba handed over to Duan Yun is currently the most advanced in the world. Toshiba itself is also using this A set of testing equipment, high efficiency, and very accurate.

In the testing room, the lights were bright, the instrument was beeping, the operation panel was flickering, and everyone around held their breath again.

Soon on the display screen of the testing instrument, a meta-crystal pattern appeared. The blue part is a qualified chip, and the black area is an unqualified chip. The data below shows that there are 58 complete chip parts in the entire wafer. , 49 chips were qualified, and the pass rate reached 84%!

"Clap clap clap!"

After seeing this data, everyone at the scene immediately applauded and cheered. There is no doubt that this is a very good pass rate, which is basically the same as the pass rate given by the original Toshiba factory in Japan. The debugging is successful, and the conditions for formal production have been met.

"Everyone be quiet!" Duan Yun suddenly smiled and signaled everyone to stop applauding, and then said: "Today is a historic day for our factory. With everyone's unremitting efforts and solidarity and cooperation, the first The trial production of the block chip was successful, and the pass rate was as high as 1%. It is not easy to achieve such a result, and it also proves that our team is a team with wisdom, ability and combat effectiveness!"

When Duan Yun said this, there was another round of applause at the scene.

"...However, I need to remind everyone that the successful production of the first chip today is only the first step in the long march of our business. In the future, we will not only occupy the domestic market, but also compete with those multinational companies internationally. wrist, so there is still a long way to go in the future, and it will be very difficult..." Duan Yun paused, and then said: "The competition in the chip industry is quality, performance and cost, so in these three aspects, we must work hard. Improve the production process technology, catch up with the world's leading level, and strive to make our Tianyin chip factory stand at the pinnacle of the world's chip field!"

"it is good!"

Wu Gang was the first to say hello, and the warm applause rang out again, while Huang Lingyi, Jiang Mingwei and others had slightly moist eye sockets at this time.

Tianyin Chip Factory successfully produced the first chip. This is not only a victory for a company, but also of great significance to China's chip industry, which makes them ahead of the "1 task" issued by the Ministry of Electronics Industry last year. , an important step to catch up with the international leading level.

It can also be said that the current Tianyin chip factory already represents the highest level of China's chip industry, and the gap with foreign countries is only about three to five years. Everyone present is looking forward to launching an impact towards the pinnacle of the chip industry...

(End of this chapter)