Rebirth: Fight For Life

  Chapter 277 Academicians, Bulls and Dogs

   Liu Hanhao shook his head: "I slept every day, but I slept less. It's a critical stage."

  Ni Guangbei was concerned about the progress, so he hurriedly asked: "Which stage is it?"

   Liu Hanhao said excitedly: "DRC has passed, and now the LVS situation is not bad. Once this pass is over, the film can be sent to the factory."

   "Finally coming out?" Ni Guangbei hurriedly leaned over, "Let me see!"

   After such a long period of edification, Gu Song knew that a chip was to be designed. After determining the requirements, specifications and architecture, he first did the front-end design and various verifications; then he did the back-end design and continued various verifications. Front-end design is equivalent to purely drawing on paper, realizing requirements from a logical level. The back-end design needs to consider how the logic circuits designed by the front-end are wired during actual production, that is, how to realize the logic circuits under the planned production process standards.

   Every link is accompanied by a lot of verification.

   Now, even the back-end design has been completed, in the final verification link.

   As long as there is no problem in this link, it can be sent to the chip foundry for tapeout, that is, trial production, and then the actual chip can be obtained for further testing.

  Ni Guangbei excitedly looked at the current progress and asked, "Has the packaging plan been decided? What about PCB and application design?"

   "Of course it's all ready!" Liu Hanhao stared, "I'm an experienced person!"

  Gu Song watched the two big bosses discussing excitedly, and shook his head to see Lin Yaodong's state.

   He was having a good time in class.

   Looking back, this technical team needs to develop the entire system based on this new set of standards and technologies, so that the current network speed and hardware performance can also achieve a sufficient level of online video playback.

   He had a smile at the corner of his mouth. Once this website showed jaw-dropping effects on online video playback, countless interested people would immediately be tempted.

   The expansion of demand will force the timely follow-up of infrastructure construction. At that time, the idea will try to fuel the flames, and let the communication technology iterate as soon as possible.

  Gu Song ran to Liu Hanhao's office and sat there waiting for the two bosses to finish talking.

   After the boss for a while, Ni Guangbei came over thoughtfully.

   "What about Professor Liu? Can't come?" Gu Song asked with a smile.

   Ni Guangbei shook his head: "Let him be busy, it's the last critical moment."

   Sitting on the sofa, Ni Guangbei said with emotion: "When I was working on ASIC, why did I feel it was much more difficult than it is now."

   "There are more design tools than before, and," Gu Song said with a smile, "Mr. Ni, don't look at how much money I spent to speed up."

  Ni Guangbei asked curiously: "I heard from Xiao Liu that you provided him with a lot of technical information and ideas for this chip. You said it was obtained from Stanford. How much did it cost?"

   "Well... it cost a lot of money, the exact amount... I can't say."

   After Gu Song finished speaking in a veiled manner, he asked, "Lao Ni, is there anything else you need to do here today?"

Ni Guangbei nodded and said: "I just came back from the Ministry of Information Industry, and asked them to coordinate and promote this coding standard. After chatting and talking, he said that Godson's press conference was scheduled for the 28th, and I came over here to watch it. Look. Hey, having said that, I still hope that we can also start to enter the core chip research as soon as possible."

   "Actually..." Gu Song thought for a while, but still said, "I've been thinking about memory chips recently."

  Ni Guangbei asked stunned: "Memory chip? What's the next step?"

Gu Song shook his head: "It's not the next step. When the decoding chip comes out, the next task is the image processor. However, I want to study the memory chip in private to see if there are any ideas for improvement. I'm not starting this semester. Have you learned these lessons?"

  Ni Guangbei is speechless, in your basic microelectronics class, are you thinking about improving ideas for memory chips? Isn't this a cutting edge issue?

  Gu Song looked at his expression and said with a smile, "Old Ni, don't look down on me. I can think about my ideas, but if I have ideas, there is another place that can cooperate to verify."

   "How do they verify? The main limitation of memory chips is the process, they are just a design team in the laboratory."

Gu Song said: "There is also room for improvement in the circuit. In short, you know that this is not an overnight thing. What I am thinking about now is to see if there is a good idea and direction first, and then see what needs to be overcome in this direction. What are the difficulties, and then consider making this chip seriously."

Ni Guangbei smiled: "If you really have an idea, you will be blind. Unless you use a process technology that is inferior to others, you can make better products than others. How is this possible? If it is only in the field of low-end products, through Improvements have reduced costs a bit and have limited effect.”

  Gu Song smiled without saying a word, 3DNAND is just not limited by the process technology.

  The current chips are basically 2D. On a plane, the performance of the chip is limited by the order of magnitude of transistors. Therefore, logic chips such as CPUs can only pursue the process technology. From the 100-nanometer level to the 10-nanometer level, the performance will be greatly improved and the cost will be greatly reduced.

   But the memory chip is different, its circuit is much simpler than the logic circuit, and it is a massive repetition of the memory cell circuit. If you continue to take the 2D idea, of course, you will also pursue the process to improve performance. Of course, at that time, the promotion from SLC to MLC and even later TLC was to embroider finer flowers on embroidery needles.

   But 3DNAND is really another way.

  Strictly speaking, it is not an improvement in chip design and production, but a packaging technology.

  Since the limit of the number of memory cells on a plane is there, it is better to stack them layer by layer.

  I can't do your 100-nanometer process, it doesn't matter, I use a 200-nanometer process, are you afraid of me stacking 24 layers?

   That is, the storage circuit is relatively simple, and this idea can mature quickly.

   Of course, this does not mean that the packaging process of 3DNAND is very simple. On the contrary, this is a craft with a high threshold. Otherwise, it will not be time for Gu Song to read the file. Only four companies in the world have this ability.

  But now Gu Song has black technology in his mind, and he has such an awesome technology roadmap in his memory, so he naturally has to try it.

  To the worst, a pile of papers was scattered, and a pile of patents was accumulated into a patent pool. The level of craftsmanship is enough, do you want to use it? How to cooperate? That's something to talk about.

  Ni Guangbei looked at his expression, stared at him for a while, and said, "You must already have an idea! Just say it, I'll help!"

Gu Song touched his chin and thought for a while: "Otherwise, Mr. Ni, you and I, and Lin Yaodong, the three of us will set up a group first. I will sort out the ideas again, you can help me check and let Lin Yaodong do some specific work. Work, let's try it!"

   An academician god, a future bull, a grinning open-hanging dog.

  Gu Song grinned and looked like he had a lot of fighting power!

   Niubi chip punch duck! Thank you Datang Fenglin for the reward!

   (end of this chapter)