Chapter 320: Hand-Drawn MS6502

Jiang University of Science and Technology, bypassing the black cinder sports field and boiling water room, is the red brick wall of Jiang University of Science and Technology Experimental Building.

"Xiao He, it's not right for you to do this, obviously you can form a logic circuit gate in this way, you will only do this more, you have to learn to plan each line reasonably......

When he arrived at the door of the semiconductor laboratory, Zheng Nan heard Professor Zhou teaching his students inside.

"Senior sister, we're here!" Li Xing happily pushed the door in.

Zheng Nan also respectfully shouted Professor Zhou.

Zhou Minde raised his head: "Director Zheng is here, the research and development of the second-generation chip you explained before has entered the final stage, as long as it is tested for a maximum of half a month to confirm that there are no hidden defects, it can be put into production."

However, Zhou then said that the second-generation chip is much more complex than the first-generation: "The millimeter-scale chip cannot support such large-scale computing, so I designed two solutions, one is to use the micrometer-scale process, and the other is to use the segmentation algorithm."

The first scheme is easy to understand, which is Moore's Law, where the number of transistors on a chip increases, in exchange for the performance of the chip, a simple and crude addition.

What surprised Zheng Nan was that the second set of schemes, although it is still the logic of increasing transistors, is not as simple and crude as the first one, but considering the current chip production level of the radio factory, a set of two millimeter-level chips in series is designed.

"Although it is still a millimeter-level chip, two chips working at the same time can barely achieve the effect of a micron chip." Zhou Minde explained.

"Amazing, Professor Zhou, you are really amazing, this is the architecture design of the dual-core chip, you have been ahead of the world for fifteen years!" Zheng Nan exclaimed excitedly.

It's no wonder that Zheng Nan is so excited, although Zheng Nan doesn't understand the chip logic circuit, but Zheng Nan knows very well that making two chips work at the same time is far from being as simple as one plus one equals two, and even because the homogeneity of the two chips is too high, it is easy to waste resources and grab each other's buses.

Otherwise, if this is not the case, it will not be half a century after the invention of the chip, and the dual-core will not be used for the first time.

But now in 90 years, in the semiconductor laboratory of Jiangxi University of Science and Technology, Zhou Minde actually developed it?

Although Zhou Minde shook his head again and again to emphasize that this is not a dual-core chip in the real sense, Zheng Nan still thinks that this is a great initiative.

"Both sets of solutions can continue to be studied, especially the dual-core architecture, Professor Zhou, you must not give up, I have a hunch that he will be able to shine in the future, and maybe even four cores and eight cores and more cores!"

Zheng Nan encouraged Zhou Minde and asked her to find herself at any time if she needed anything.

Zhou Minde was embarrassed to say that he was embarrassed: "Director Zheng, you have invested almost 1 million in the laboratory before and after, if I can't make some achievements, then I'm sorry for your trust."

These words made Zheng Nan feel a lot of emotion.

That is, Professor Zhou Minde, that is, in this era, she can give you a dual-core chip for one million, which will be placed in the future generations, let alone a million, even ten billion may not be able to make a splash.

Later, Zheng Nan told Zhou Minde that he did not come this time for these chips, but had a new research and development task: "Professor Zhou, do you know the MS6502 chip?"

Zhou Minde nodded unexpectedly: "This is a classic chip launched by MS Technology Company fifteen years ago, and I have had the privilege of doing some joint research work on this chip."

Zhou Minde said as he pulled out a drawing paper in the bookcase next to him.

It is said to be drawing paper, but it looks full of vicissitudes, not to mention that the paper is completely yellowed, and even a lot of newspapers and calendar paper are pasted on the back, but there are still various creases, as if you can tear it apart lightly.

Zhou Minde told Zheng Nan that this was the chip drawing of the MS6502, and then spread it out on the desk.

The drawings were so large that the standard desk was less than one-sixth the size of the drawings.

But Rao is so big that the drawing paper is so big, and the various route diagrams on it are still dense and dizzy.

Li Xing proudly told Zheng Nan, "This is my sister's most proud masterpiece, which she hand-painted based on her research on MS6502."

Originally, it was incredible to see the design drawings, but Li Xing's words were even more surprising: This is actually hand-drawn?

If you think about it carefully, this is normal, although MS6502 is a classic chip, but it is also a trade secret of MS Technology and Intel and MT chip companies, it is impossible to really put out the design drawings, Professor Zhou Minde's drawings can only be drawn by her hand according to research.

You can know it, but when you see such a design drawing really in front of you, you are still numb by the scalp of the big guy show.

I thought I had to find a way to get a few MS6502 chips back to do reverse engineering, but I didn't expect Professor Zhou Minde to directly move out the whole set of drawings.

However, before Zheng Nan had time to be happy, Zhou Minde poured a basin of cold water.

"Although I don't know what products you plan to produce, Director Zheng, even if you have a whole set of drawings, you can't make it."

"Don't look at his chip fifteen years ago, but he also uses an 8-micron process, which is a level of precision, except for a few specific factories in Yandu and Ninghai, ordinary factories can't do it at all."

Zheng Nan gasped, this was indeed beyond his expectations, originally Zheng Nan thought that since the chip was outdated, he could use it to some extent, but who would have thought that even fifteen years ago, it still entered the single-digit micron process field, and his VCD chip was still millimeter-level.

However, Zheng Nan did not give up because of this, he thought about it carefully and asked, "Professor Zhou, can this chip be streamlined?" Because I know that there is a part of the chip that can be discarded, and we don't need that much performance."

Zhou Minde nodded and said, "Generally, there are some test lines on the chip, which can be streamlined, and some of them can be rearranged as redundancy, but even so, it still requires a process below 18 microns."

From 8 microns to 18 microns, it can be said that Zhou Minde has tried his best to streamline, but this is still a fantasy for Zheng Nan.

You must know that 1 millimeter is equal to 1000 microns, Zheng Nan saw with his own eyes that the chip engineers in the radio factory used a carving knife to make the chip mask, this kind of small workshop-style hand-rubbing process, the millimeter level is no problem, maybe a few hundred microns can barely do it, but 18 microns is ......

At this time, it was Li Xing who stood up and gave Zheng Nan confidence: "Director Zheng is fine, leave the technical matters to me!"

Looking at Li Xing's firm eyes, Zheng Nan nodded and said yes.