Super Copy of Great Power Technology

Chapter 183 Joint debugging of equipment (Part )

Lin Mengsong wiped the sweat from his forehead with his gloves and said happily: "Mr. Qiao, all the equipment has been installed. The production line can be started tomorrow for joint debugging."

Hearing the good news, Qiao Ruida was also quite happy, "Dr. Lin, thank you for your hard work. How long do you estimate it will take for joint debugging? When can our chip production line be ready for production testing?"

Lin Mengsong pondered for a while and said: "Actually, after the equipment is installed in place, the entire production line can be fully operational. The process of joint debugging is also the process of producing chips. However, there are too many parameters to explore in the early stage, and the product qualification rate is likely to be zero. . The first qualified chip will appear within about half a month, and the chip qualification rate can be increased to about 20% within a month. After that, it will be a long time to optimize the process flow. Within one to two years, the qualified chip can be If the rate increases to over 90%, it will be considered a success.”

Qiao Ruida continued to ask: "So that's it. Can we produce 28nm process chips during the joint debugging period? Our Ruida Technology designed a 28nm Bluetooth chip some time ago. We want to conduct tape-out testing and have searched all domestic chip manufacturers. There are many foundries, but they can’t process it. If our own production line can do it, I won’t go to TSMC for OEM.”

"This chip production line is equipped with the latest DUV lithography machine. The minimum processing accuracy is 28nm. It only requires one exposure to produce 28nm chips. The chips designed by your Reda Technology can be brought here for tape-out testing. It's just We do not have mask processing equipment here, so you need to go to other companies or laboratories to customize several sets of masks."

"I'll finish the mask and send it to you in two days. I'll leave the rest of the work to Dr. Lin." In Qiao Ruida's dimensional space, there is a set of chip production equipment copied from the Peking University Integrated Circuit Laboratory. Among them are equipment for processing chip masks. The masks used to produce this new Bluetooth chip are barely enough.

"Mr. Qiao, you're welcome. As a matter of loyalty and entrustment to others, I will adjust the production line as soon as possible and strive to produce qualified 28nm Bluetooth chips as soon as possible."

In the following time, Qiao Ruida entered the four dust-free workshops one by one, opened the golden finger, and photographed all the installed chip production lines, chip test lines, and chip packaging lines. That night, after returning home, Qiao Ruida sank her consciousness into the dimensional space, turned on the golden finger, and copied all the equipment photographed during the day in the dimensional space. The installation positions and connections of all equipment were all connected to the outside world. Exactly the same. After that, Qiao Ruida mobilized a large number of dimensional projections to work on this new production line.

Qiao Ruida first found a design drawing of a 28nm Bluetooth chip, gave instructions to some dimensional projections, and produced four sets of Bluetooth chip masks according to the design drawing. Then Qiao Ruida took out a set of masks and installed them on the photolithography machine. This latest chip production line is much more advanced than the original antique production line in the dimensional space. The silicon wafers used have been increased from six inches to eight inches, and the photoresist and doping materials used have also changed. different. Fortunately, Qiao Ruida has prepared these raw materials. If anything is missing, she only needs to open the corresponding photos and copy them in batches, and she will have as many as she wants.

Before going to bed, Qiao Ruida gave Dimension Projection an order to mass produce 28nm Bluetooth chips. I saw that all the equipment on the production line was running, and all the dimensional projections were also busy. The entire chip production process has hundreds of processes, and it takes at least ten hours to complete them all. Qiao Ruida looked in the dimensional space for a while and felt a little sleepy, so her consciousness exited the dimensional projection, turned over, and fell asleep.

The next morning, the biological clock woke up Qiao Ruida on time. Before getting up, his consciousness entered the dimensional space for a look. After a night of work, Dimensional Projection has produced a large number of semi-finished chips. However, after subsequent testing, these chips were all scrapped products, and none of them were usable. With a thought, two semi-finished chips appeared in Qiao Ruida's hand. She opened the gold finger and took photos and analysis of the two chips. The results are not optimistic. There are countless defects, large and small, on these two semi-finished chips. Either the wafer photolithography is not in place, the etching is not complete, or the photoresist is applied unevenly, causing defects in local areas. Exposed, the doping process is also full of errors and omissions. With so many flaws out there, it would be damned if the chip worked properly.

Qiao Ruida opened her eyes and murmured to herself: "It seems that advanced equipment alone cannot produce qualified chips. Some capable people must fully debug the production line. No wonder Intel was so awesome in the previous life The company has also been unable to grasp the 7nm process technology, so it needs to hand over its most advanced processors to TSMC."

After breakfast, Qiao Ruida drove to the Ruida Electronics Factory, and then followed the team of Lin Mengsong and Wang Chengye into the dust-free workshop to start up and debug the installed chip production line. Lin Mengsong and Wang Chengye, one is a foreign technology expert, and the other is an authority in domestic integrated circuits. Both have rich experience in chip production and are familiar with setting the parameters of these equipment. Qiao Ruida followed the two of them and carefully watched the debugging process of the learning equipment. When he encountered something he didn't understand, he would ask questions on the spot. Due to Qiao Ruida's identity, they would probably give the reason for such a setting. But there are also some parameters that are obtained purely through the accumulation of experience, and there are no specific calculation formulas. Qiao Ruida had to take out a small notebook and record these empirical parameters.

While watching and studying, Qiao Ruida made synchronous adjustments to the chip production equipment in the dimensional space to ensure that the internal and external equipment parameters were completely consistent.

For the next few days, everyone stayed in the dust-free workshop No. 1, working at least ten hours a day. During this period, the entire production line was turned on and tested and produced twice. As a result, all products were wiped out and the pass rate was zero. A week later, all the staff put on dust-free clothes and entered the No. 1 dust-free workshop. After getting into their positions, with Qiao Ruida's order, the third test of the chip production line began. All machinery and equipment began to operate normally, the crane began to fly in the air, the staff began to be busy in an orderly manner, and the wafers began to move forward along the conveyor belt.

(End of this chapter)