Chapter 84: One Hundred Secrets Must Be Missing
The next morning, when Kangchi came to the silicon wafer equipment R&D center, he found that Yan Hui had already arrived at the company, and even transported the polishing machine to the assembly workshop in advance, and was dismantling the shell.
Kang Chi walked up to them with a smile and greeted them, "Why did you come so early?" ”
Yan Hui glanced back at Kang Chi: "What do you say?" ”
"Uh......" Kang Chi looked at the panda eyes on Yan Hui's face, and said a little speechlessly, "You haven't slept all night?" ”
"The main thing is that you sold it yesterday was too big." Yan Hui smiled bitterly, and then led Kang Chi to the polishing machine, "Let's dismantle the shell soon, let's see if we will dismantle all of them next, or only a certain part?" ”
"Well, I'll take a look first."
After Kangchi finished speaking, he took a flashlight and carefully observed the internal structure of this polishing machine.
In fact, the structural design of the polishing machine is very similar, the difference is mainly in whether the precision is done well or not, if this machine is like Yan Hui said, even every part has been accurately imitated, then it should be no problem.
Half an hour later, after Kang Chi briefly understood the structure, he pulled a stool and sat down to take a breath, and at the same time asked Yan Hui: "So you draw a scoop according to the gourd, how many techniques have you eaten inside?" ”
Yan Hui thought for a moment before replying, "Seventy or eighty percent." ”
"Oh, if I'm right, you're in luck." Kangchi pointed to the polishing blade, "Remove the grinding table of the polishing machine." ”
Yan Hui, who got the instruction, immediately started working with a technical team of more than ten people.
Looking at this scene in front of him, Kangchi was almost moved to tears.
If it was before, he could only do it by himself by disassembling and assembling this kind of precision equipment, and it was estimated that it would take a day to disassemble the grinding table.
But now, he only needs to sit comfortably and watch it, and he can feel the rapid movement of the progress bar.
It's just wonderful.
With the close cooperation of more than a dozen people, two hours later, the grinding table of the polisher was dismantled and placed on the workbench upside down, revealing the various parts underneath.
Kang Chi immediately walked up, and after a brief observation, he pointed to a small black cylindrical part and asked Yan Hui, "Do you know what this is?" ”
"Strong magnetic coils."
"What does it do?"
"Stationary grinding table?"
"Then why not just use screws?"
"Hmm...... Screws may come loose, causing the countertop to vibrate? ”
"Then why don't they just weld it to death?"
"This ......" Yan Hui was stumped at this time and began to fall into deep thought.
In fact, Yan Hui can't be blamed for this, there are so many parts in a polishing machine, and they usually work in reverse, all of which are analyzed and understood by the core components first, and these non-core parts are analyzed and manufactured by middle and low-level researchers.
You can't even let Yan Hui think about the principle of shell design......
"Let me remind you again, apart from these sixteen strong magnetic coils on the edges around the grinding table, is there any other magnetic coil in this polishing machine?"
"Of course there is, and there are a lot of them." Yan Hui said without thinking, "Each robotic arm has to be driven by a motor, especially the largest grinding disc, which has a big ......."
As he spoke, he stopped abruptly, as if thinking of something.
"What do you mean......"
"That's right, this thing definitely doesn't just play the role of strong magnetic adsorption and fixing the countertop." "It probably also involves adjusting the magnetic field of the entire machine to limit the slight vibrations caused by the grinding disc drive motor!" ”
"Now you have the software engineer check the drivers again and find the voltage setting programs for these 16 strong magnetic coils, and if my guess is correct, their voltage values must be different."
With Kang Chi's explanation, Yan Hui's heart beat faster and faster, and even the green tendons on his forehead bulged a little......
He had a strong premonition,
Kangchi is right,
They are getting closer and closer to the truth!
Yan Huiqiang couldn't hold back his excitement, turned his head to a researcher and said, "Zhang Gong, hurry up and call the software engineering team over!" ”
"Hmm."
Soon, the software engineers rushed over with a bunch of equipment, and then, under the command of Yan Hui, began to analyze and find the drivers of the equipment.
The volume of the work was a bit large, and it wasn't until around four o'clock in the afternoon that they finally found a line of code hidden in a small corner.
"The voltage values are really different!"
"This ...... Could it really be the reason for this set of electromagnetic circles!? ”
"Mr. Kang, you are too godly!"
“……”
Hearing the surprised discussion of the engineers, Yan Hui couldn't help but look at Kangchi with a complicated expression.
"Congratulations, you already have the answer." Kangchi said with a smile, "The next thing you have to do is to quickly analyze the magnetic field of the equipment, and then debug the voltage of these 16 groups of strong electromagnetic circles." ”
Yan Hui nodded: "I didn't expect the problem to appear here......"
Kang Chi patted him on the shoulder and comforted: "There must be a mistake in a hundred secrets, especially with this kind of precision equipment, every screw may contain a mystery, and you can't do it all." ”
"But didn't you do it?" Yan Hui smiled a little bitterly, "In just three experiments, the key to the problem has been discovered...... No wonder they all say you're a demon......"
Kangchi just smiled and didn't make much excuse in this matter.
Otherwise, the blow to Yan Hui will be even greater......
In fact, even if there is no Kangchi, this problem may be discovered by Yan Hui sooner or later, it may be tomorrow, it may be next month, or it may be two years......
Research this kind of thing is so metaphysical, sometimes the problem that you think is not critical happens to be the core problem, and researchers often waste a lot of time and energy on it......
Once you have a goal and direction, the rest is simple.
Kangchi once again realized the importance of a professional team, and originally thought that when he came to Sixin, he would have to start from hand-rubbing parts and reassemble a polishing machine as before.
As a result, the research and development of the polishing machine has reached the point where it is almost a kick, and as long as Kangchi pushes lightly, the matter is easily solved.
And all he has to do is sit next to him and supervise (touch the fish)......
Under the hard work of Yan Hui's team day and night, it only took two days to complete the overall magnetic field debugging of the polishing machine and start the actual test after debugging.
As the robotic arm places the coarsely ground wafer into the six grinding discs, the wafer begins to rotate rapidly and makes contact with the grinding table.
The whole polishing process, which lasts about ten minutes, is then cleaned and begins to be inspected.
At this moment, the entire R&D team couldn't help but hold their breath and stared at the inspector tightly.
"No scratches above 0.14nm were found on the surface of any silicon wafers."
"Wafer surface flatness...... 1.22nm RMS! ”
As the inspector's voice trembled and the test results were reported, the whole laboratory suddenly boiled!
(End of chapter)