Tech House System

    After getting used to the university life, some students gradually began to skip classes. Especially the two courses of "Mental Health Education of College Students" and "Ideological and Moral Cultivation and Legal Foundation", for this boy who has escaped his age, listening to such boring lectures is simply torture. So as long as there are these two courses, there will always be fewer people in the class.

    Wei Shuxun is no exception. Yesterday, Liu Yongdong asked him to pick up transistors in the afternoon, but this morning, there are two courses in a row, namely, "Mental Health Education for College Students" and "Ideological and Moral Cultivation and Legal Basis". The three Wu Feng in the same dormitory went directly to the Internet cafe to play games. Wei Shuxun refused their invitation and went to Liu Yongdong.

    I knocked on the door twice, but no one responded, the door was left open, Wei Shuxun pushed open the door and asked, "Is anyone there?" No one answered, the room was full of piles Wei Shuxun was about to leave the various mechanical clutter on the console, when suddenly there was a sound of the door opening, Sun Yi walked out, saw Wei Shuxun standing at the door, stunned, and asked strangely, "Who are you? ,Is there a problem?"

    "...My name is Wei Shuxun." Wei Shuxun said, "You brought me here yesterday."

    "Ah, tantalum capacitor transistor?" Sun Yi thought for a while, and suddenly pointed at Wei Shuxun.

    "I don't call it a tantalum capacitor transistor." Wei Shuxun was expressionless.

    "Sorry, sorry." Sun Yi scratched his head: "I forgot about you yesterday. Haven't your tantalum capacitor transistor been ready yet?"

    "No, Liu Yongdong asked me to come over in the afternoon, I'm fine in the morning, come and see."

    "Liu Yongdong has class in the morning, so he may come later. If you need it urgently, I will help you." Stay, can't pull it off.

    "It doesn't matter, I'm not in a hurry." Wei Shuxun said, pointing to the middle of his finger: "Sorry, I heard something ringing..."

    "Ah, my signal...!"

    Sun Yi rushed into the room, Wei Shuxun followed him, saw him sitting on the computer after a while beating, and the computer displayed line by line data, Sun Yi sighed: "It's okay, the value It didn't explode."

    Wei Shuxun knocked on the door: "Have you disturbed your work, sorry, I'll go first."

    "Okay, please bring me a breakout board before leaving, it's on that white workbench."

    Wei Shuxun nodded. He still knew the breakout board. He walked to the workbench and looked at it. There are several different sizes of breakout boards. "I don't know which one do you want?"

    Sun Yi turned her head to take a look, took out one without comparing, turned it back to the computer, typed in a series of commands, pulled out the chip connected to the computer, picked up the T-plug, and said to Wei Shuxun: "By the way, help me get the banana head, 3.5mm is fine."

    What is a banana head?

     Wei Shuxun heard this name for the first time and wanted to ask, but Sun Yi had already turned on the electric soldering iron and concentrated on soldering the breakout board. Wei Shuxun knows that he must not be disturbed at this time. A little mistake will lead to the failure of the work, so he can only find it by himself.

    "Learning machine, what is a banana head?"

    An oval brass gadget pops up in the Void image of the Learning Machine: "Banana Head."

    This thing is too small, Wei Shuxun finally found it in a pile of spare parts and took it to Sun Yi. Sun Yi was already fully engaged in work at this time, and without raising his head, Wei Shuxun dropped the banana head and looked curiously at the semi-finished product on the table.

    That thing looks like a small plane? Looking at the messy tabletop, I saw four propellers.

    "Are you making a plane?"

    When Wei Shuxun was looking at it, Sun Yi had already branded the wire, took the banana head and connected it to the other end. "It's a quadcopter, and we're trying to add autopilot to it."

    "Sounds interesting, can I take a look?" Wei Shuxun asked with interest.

    "Yes, it's not finished anyway."

      Shuxun doesn't know all of them.

    "Learning machine, can you analyze what these are?"

    After the learning machine scans, the void screen pops up: "High-strength aluminum alloy frame; flight control board, brand: mwc; Ni-MH polymer battery, remote control module..."

    Every time the learning machine reports the same, a component is displayed on the screen. Originally, these components were assembled together, but Wei Shuxun couldn't understand it at all. He was disassembled and explained like a learning machine, and he understood it instantly.

    "Thanks, I didn't think the learning machine would be very useful!"

    "Small things." The learning machine has a flat and indifferent attitude. As long as it does not conflict with the task, the learning machine does not mind helping a little when there is nothing.

    Because the quadcopter was very interesting, Wei Shuxun moved a stool and sat next to Sun Yi, watching him install the components on the aircraft one by one.

    When the quadcopter was almost ready, there was a noise outside, Wei Shuxun looked up and saw Liu Yongdong who put down his backpack. He didn't forget the purpose of his visit today, so he stepped forward to say hello: "Hello, Liu Yongdong."

    "Wei Shuxun, you came so early?" Liu Yongdong looked surprised: "I haven't finished your transistor yet."

    "It's okay, I'm just here to take a look." Wei Shuxun waved his hand: "I'm not in a hurry, it doesn't matter if you're busy a few days later."

    "It's fine, this thing is not difficult to make." Liu Yongdong unscrewed the drawer, took out the broken tantalum capacitor transistor, and walked to the various components piled aside to find a few materials .

     Wei Shuxun saw that he was about to go to work, so he sat quietly beside him. He found that electronics were more interesting than he imagined. Obviously, they are inconspicuous accessories. After being processed and combined, they become another incredible product. Although I also made a permanent magnet isolator last time, I didn't have much sense of identification with the future products I had never seen before. I didn't really like it until I saw the prototype of a four-dimensional aircraft.

    Liu Yongdong took out two single crystal germanium and antimony **** and started sintering, Wei Shuxun watched quietly, and at the same time summoned the learning machine in his consciousness to explain.

    "Is this a task reward requirement?" the learning machine asked. Simply scanning objects is not a problem, and making commentaries is beyond the scope of the learning machine.

     "Okay, it's the quest reward, explaining how Liu Yongdong works." The reward for helping Lu Xin last time has not been extracted, and it is useless to keep it, Wei Shuxun simply uses it to learn.

      Libraries are oversimplified. But the learning machine still uses the electronic sound of the tablet to explain as much as possible: "Currently, the polysilicon layer and the dielectric layer are being etched to form the gate and gate dielectric layers... Masks are fabricated on the gate and sidewalls to form source and drain regions... "

    The learning machine explained the steps and principles of Liu Yongdong's work one by one, Wei Shuxun listened carefully, and his eyes were inseparable from Liu Yongdong's hands.

    "He made improvements to the transistor, implanting ions into the polysilicon layer, reducing the gate resistance and rc time constant of the transistor."

    The transistor has been basically completed, only the final processing is left, and the final summary of the learning machine tablet is completed. Wei Shuxun smiled and said in his consciousness, "Thank you, learning machine."

    It's obviously a completely untouched electronics. Under the neat explanation of the learning machine, I really fully understand it, not only the operation steps, but even the production principle. Now let him do it once. No problem, Wei Shuxun is naturally grateful for the learning machine.

    "It's done." Liu Yongdong handed the finished tantalum capacitor transistor to Wei Shuxun and smiled: "Was it boring to wait?"

    "No, it's very interesting." Wei Shuxun shook his head: "Thank you, how much should I give you?"

    "No, it doesn't take any materials." Liu Yongdong waved his hand indifferently: "If you thank you, next time you have military electronics, I'll send you a few samples, we have everything here, It's just okay to get military electronics."

    Wei Shuxun nodded solemnly: "I remember."

    It took half a day to re-install the permanent magnet isolator, and re-checked the various accessories again, and it was confirmed that there was no problem. Wei Shuxun put the music box in the suitcase under the bed, so as not to be damaged next time.

    Although electronic products are no longer needed, Wei Shuxun still remembers Sun Yi's half-built quadcopter, so he will run to Sun Yi in his spare time. He didn't talk much, he was very diligent in helping with errands and getting tools and accessories, and then he sat quietly by the side, never making a sound.

    So even though they came here without permission, the three people here did not dislike him at all, and even in their spare time, they would chat with him about various electronic principles and techniques. Although these high-tech Wei Shuxun did not understand, but out of the mentality of learning, he carefully wrote them down.