Super Copy of Great Power Technology

Chapter 184 Joint debugging of equipment (Part )

Qiao Ruida, Lin Mengsong, and Wang Chengye followed the first batch of wafers and slowly passed through one process after another. Lin Mengsong and Wang Chengye both had very serious expressions, and their eyes kept moving along with the wafers on the production line.

"Academician Wang, Dr. Lin, please relax. We have done all the work that needs to be done, and the parameters that need to be adjusted are all in place. This production test will definitely be successful."

Qiao Ruida said this not just to comfort the two of them. In fact, last night, the chip production line in the dimensional space had been successfully tested and the first qualified 28nm Bluetooth chip was produced. Although the product qualification rate is pitifully low, only in single digits, the entire production line has been run through, right? The parameter settings of all equipment in the real world are exactly the same as those in the dimensional space. There is a high probability that qualified chips will be produced during this test production.

Lin Mengsong shook his head and said: "Having said that, I still have no idea. This set of chip production equipment is so advanced that it contains almost all the top chip production equipment in the world. I work at TSMC and Four Star, I have never seen such a complete top-level production line. The experiences I have summarized in the past can only be used as a reference. I am not sure whether it can produce qualified chips."

Wang Chengye let out a breath and said: "Brother Lin has at least been exposed to DUV lithography machines at Four Star before. I have never even seen the shadow of DUV before. If you are not sure, I can't guarantee anything. If this If the first test and production are not successful, then we will continue to explore and debug, and sooner or later we will succeed."

The dust-free workshop that produces chips has very high requirements for cleanliness. The dust-free suits worn by Qiao Ruida and others are fully enclosed dust-free suits. It is very laborious and loud to talk to each other. Moreover, this kind of dust-free clothing is very difficult to put on and take off. If someone is in a hurry, it will take more than half an hour to go to the toilet, which is very inconvenient. In order to minimize the number of trips to the toilet, everyone needs to strictly control their daily drinking water intake. Occasionally, they need to ninja their bladders that are about to explode and continue to work, which is an uncomfortable group.

More than ten hours later, it was completely dark, and the operators on the production line had changed twice. However, Wang Chengye, Lin Mengsong, and Qiao Ruida were still holding on in the workshop. Except for the time when they went out to eat, the three of them had been working continuously in the dust-free workshop for at least ten hours. Even the young man Qiao Ruida was a little overwhelmed, let alone the old man Academician Wang. It was really relying on a belief In support.

Another half hour later, Qiao Ruida and the other three watched the first batch of eight-inch wafers come off the production line. Lin Mengsong walked forward excitedly, took a piece of wafer from the staff, held it in his hand, and looked at it carefully. The silicon wafer that has completed all photolithography, etching, doping, weather deposition and other processes will partially show colorful colors and look very beautiful.

"You can't tell anything with the naked eye. Let's take ten wafers, go to the test line in the next workshop, go through the test process, and then we'll know the results." Academician Wang stepped forward and patted Lin Mengsong on the shoulder. So said.

"I understand. Let's pack the wafers and take them for testing." After saying that, Lin Mengsong started to take action. He took a plastic box specially designed to store silicon wafers, then used a special clamp to pick up ten silicon wafers and put them in Put it in the box, carry it and walk out. Qiao Ruida and Academician Wang followed closely behind and walked towards the workshop door together.

There are also people on duty at the chip test line in the workshop next door, but the chip production line has just been opened. There is basically no work on the test line and packaging line, and there are only a few people on duty. After Lin Mengsong and his team arrived at the workshop next door, they immediately started cutting and testing the wafers. Due to the shortage of manpower, Qiao Ruida and the other three also personally operated the equipment. After half an hour of comprehensive testing, out of ten wafers and thousands of chips, only two qualified chips were found.

"Huh - finally a qualified chip has been produced. It's not easy." Lin Mengsong held two semi-finished chips that passed the test, his hands trembling with excitement. Academician Wang Chengye sat on the chair vacated by the testers and said: "Among the 1,200 chips, only two are qualified. The pass rate is only two thousandths, which is too low."

"Yes, the pass rate of two thousandths is really too low. If it is used for mass production of chips, it will cost us all our pants. In order to increase the pass rate, we still have a lot of work to do. This The two chip production lines will probably not generate any profit within half a year." As he spoke, Lin Mengsong's mood also dropped.

"In my opinion, it is very good if we can produce qualified chips. This is a 28nm chip, which is truly the most advanced process technology in the world. If we can do it, it is a breakthrough from zero to one. It is An achievement that can be recorded in history. Now that the entire chip production line has been run through, the pass rate is just a little lower, and the rest is to be slowly optimized. We have plenty of time, so don't be in a hurry." Qiao Ruida comforted everyone, he With the golden finger of replication at your side, as long as you have a sample chip, you can have as many identical chips as you want. So for Qiao Ruida, as long as the chip production line can produce qualified chips, it doesn't matter how low the pass rate is.

Perhaps Qiao Ruida's comfort had an effect. Lin Mengsong regained his energy, packed up the two qualified chips, took them to the No. 4 dust-free workshop, and carried out packaging. Then the three of them took the packaged chips and returned to the No. 1 dust-free workshop.

This time, only more than 90 silicon wafers were used for test production. When Qiao Ruida and the others returned to the No. dust-free workshop, these wafers had completed most of the processes. More than % of the operators are idle and standing at their workstations doing nothing.

Lin Mengsong handed the chip into Wang Chengye's hand and said, "Academician Wang, you are the oldest, so it is up to you to announce this good news."

Wang Chengye shook his head, handed the chip to Qiao Ruida, and said, "After all, this processing plant is owned by Qiao, and I'm just here to help. It's better for the boss, Qiao, to announce such exciting news."

Qiao Ruida took the chip and said helplessly: "Since neither of you wants to be in the limelight, let me announce it."

Qiao Ruida cleared her throat and said loudly: "Everyone, let me tell you some good news. After a week of debugging, our chip production line has produced the first batch of qualified chips."

After Qiao Ruida finished speaking, there was a sudden silence in the workshop, and then there was warm applause, "Hua Hua Hua, Hua Hua Hua".

(End of this chapter)