1991start from the Core

Here I briefly talk about the possibility of creating EDA in 1991, which can be regarded as a distant reply. 1: Don't use the standards of EDA software in 2020 to view the difficulty of development in 1991. 2: Just like, don't use the development difficulty of Win10 to benchmark the difficulty of developing win3.0 - It only takes 6M to install win3.0, And the installation disk is only 4 floppy disks. 3: It was around 1990 that the automatic wiring system came out. Before that, I used to draw lines manually, which was a vector drawing tool, in the style of Windows picture book. 4: In 1991, ARCSYS had only four people when it was founded, and then only a dozen or so people. However, the challenge was the core technology of CADENCE: chip layout and wiring P&R. 5: The reason why it was so weak at that time was because there were no elementary algorithm textbooks until 1990. Algorithms did not develop much, and EDA was the most algorithm-hungry. Repeat, algorithm. Add another barrier: physics. 6: At that time, there was almost no integration between EDA and the wafer factory. It was expressed on the layout through hardware description language and then handed over to the wafer factory - you can even think of it as a cutting plotter, of course, the premise is that you must comply with the wafer factory's process. 7: The 30 years of programming development are actually 30 years of wheel advancement and design thinking progress. The wheel contains the algorithm. 8: The protagonist has developed simulation tools and mastered algorithms. For example, I still know A-star (finding the shortest distance on a static road network, hanging up and walking). 9: In 1991, the difficulty in developing EDA in China was that we didn't know how to develop it, and that we had no ideas at all. It was not that there was no cooperation from the wafer factory, nor was it incapable. (Of course, the programming level at that time was very weak.) It was not that IQ was inferior to others. 10: I have developed programs (written and crashed), so I know that the most important thing in developing a program is the idea. 11: At least in 1991, EDA was not mysterious at all. In the final analysis, its attributes are more inclined to a CAD drawing software. 12: So I recruited dozens of masters and Ph. D. S majoring in computer science, including Tsinghua University and Peking University, and even a returnee Ph. D. Who specializes in algorithms, plus a time traveler to work on it, to give it face. 13: That's it. I don't want to hear any more condescending questions from "industry insiders". Unless you are someone with 30 years of EDA development experience.

"Start from the core" means "start over", which means that we can start over, and start over from this chip. We can get rid of being ridiculed that this technology is low, and become the one at the top. This is also to make the country a better place.

First of all, I have to admit that this is a newly opened vest. My long-term contract has not expired before the creation of the world... So I can only open the vest here. Then talk about this book. Some readers left a message saying that it is difficult to write about semiconductors. If you don't brag and don't criticize, it is indeed difficult if you don't open the system, and it is as difficult as climbing to the sky. The more I understand the history of the semiconductor industry, the more I know that all steps in this industry from EDA to final tape-out are controlled by others. Photoresist, silicon ingot, wafer, CVD, mask, photolithography, etching, ion implantation, metal layer, interconnection... Finally packaging, testing and listing. After the entire assembly line, apart from the fact that we are very proficient in the listing, the rest is really hard to describe. In the book, the Jiangyin Transistor Factory, which is Changdian Electronics Co., Ltd., Which is currently the best packaging and testing company in the country, is ranked third in the world - but in the winner-take-all chip and even the entire high-tech industry, there is no difference between third place and tenth. To be honest, I have been working on computers for more than ten years. I can install computers and solder motherboards. I am responsible for important customers who cannot reinstall computers. I once took the CCNA exam. Even when it comes to programming, I know how to VB (showing my age), and I once wrote a fully automatic hang-up for a game with 10,000 lines of code. Among the authors, I am relatively knowledgeable about software and hardware. But even so, after two years of preparation, I still feel that my knowledge is lacking - it is the most high-end industry so far! How can non-professional authors like us dare to try to see the whole picture after just a glimpse? However, I still started writing. On the one hand, everyone knows the recent events, so it is just a necessity. On the other hand, I have found a more suitable entry point. After careful simulation and thinking, it was determined that the protagonist could complete a counterattack from certain angles while "only showing" the upper limit of human strength. As for the angle and method, I will write it out slowly. I am the kind of obsessive-compulsive writer who must understand an industry when writing about it, and once a bug caused by "ignorance" occurs, I will be very upset and regretful, so writing this book was really tiring. But the subject matter is determined not to be random... Therefore, I really hope everyone can support me. Thank you all.

Are there any book friends who have read for 8000+ hours? Let's have a round of mutual relations

Most of the 80% shares sold in EDA software are still in the hands of foreign chip companies. It was also said that members of the newly formed board of directors unanimously decided to entrust voting rights to the founder team. Since voting rights can be delegated, they can also be withdrawn, and the controlling rights are also lost. The male protagonist has always been afraid of U. S. Sanctions, and has always wanted to rely on EDA to check and balance U. S. Sanctions. When the U. S. Really wants to sanction you, these foreign companies will unite to take back the entrustment rights, and lose the controlling stake. Let me see what you do.

Su Yuanshan is considered an elite figure in this industry. When he traveled to 1991, the first thing he thought of was that he could bring the previous technology to the world in advance, so that he could avoid the things that others laughed at during his previous research.

Why not cooperate more with domestic companies? Even if the domestic technology is not good, there is still capital, right? If there is an opportunity to make money, the only option is to cooperate with Sony, and suffer the loss for fear that Sony will not develop. Wouldn't it be better to attract more good domestic companies?

Is America fair enough now? The United States has the final say on other people's money. If it doesn't belong to you, it doesn't belong to you. Companies in other countries say that if you violate laws and regulations, you must be investigated and sold. . If someone else's things are confiscated, they will be confiscated! I also saw a video today where the American police came to the house and shot the homeowner to death! What does it mean that private property is sacrosanct? Someone else's house costs hundreds of thousands of dollars, and sells it for 30,000! Is this a fair and just open market in the United States? After a game with the big boss, all the ghosts in the United States surfaced. Including NATO! How funny.

That's enough of your naming! Su Xinghe, Xiao Yuanshan

I have read this book for a long time. I remember that the first time I saw this book was when I secretly read it in a professional class. Every time I read it, I yearn for Yuanxin in the book. I can't help but think about what it would be like if our country could really have such a top-notch company in the industry. Maybe the company in the book has come to reality, and our employment situation will not be like it is now with closed eyes and looking for jobs, but I am really excited to have a company that can support the backbone. I just applied for a graduate degree at Xidian University and hope to make some contribution to the country.