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Chapter 218 Star Photoresist

Why is it such a high market share in the world?

It is entirely because this photoresist can be used in the manufacture of 5nm chips, and other photoresists cannot meet the requirements. Of course, this photoresist can also be used on 8nm and 10nm. As for the future 15nm, Needless to say, 20 nanometers
But most people would not use such a low-level chip, because it is a waste of resources.

It's a shame to waste it, and ArF photoresists don't come cheap.

Think about it too, can something that can be in a monopoly position be cheap?
It is because of the ability to produce such excellent photoresists that the island country has a very high status in the chip industry, just like ASML's status in the chip industry.

are in a position to dominate the entire industry.

Since Zhang Xingchen wants to enter the chip industry, it is impossible to let go of the photoresist. After all, Xingchen has conquered the photoresist now, so how could it let go of the photoresist.

"You guys have made a lot of money these years, and you're living a good life." Zhang Xingchen murmured.

Photoresist is a liquid material, which contains many things, such as photosensitive agent, such as resin, such as solvent, etc. Many things are mixed together in a certain proportion to form photoresist.

And the photoresist is very sensitive to light.

In the photoresist, the role of the resin is to play the role of glue, that is, to bond various materials together, so that it becomes a whole, so that the photoresist has certain chemical properties and mechanical properties.

Sensitizer, as the name suggests, is a compound that is very sensitive to light, that is, has a very strong photoactivity, and a chemical reaction occurs when it is exposed to light.

In photoresist, the ratio of photosensitive agent to resin is almost 1.8 to 1.

The ratio of different photoresists is different, but the approximate number is this, there may be a slight difference, but it will not be too large, and it is within the allowable range.

The photoresist also contains a solvent, which is like water and contains everything. This is the main material.

The solvent makes the photoresist have a certain fluidity.

As for other additives, photoresists can have certain special chemical properties.

In fact, photoresists are not only used in the manufacture of chips, but also widely used in other industries, such as micro-electromechanical systems, such as solar photovoltaics, which all need photoresists.

In fact, there are many types of photoresists.

According to different applications, we can divide it into three categories.

One is panel photoresist, one is PCB photoresist, and the other is semiconductor photoresist.

According to the wavelength of exposure, we can divide it into three types of photoresists.

The wavelength is around 15 nanometers.We call it extreme ultraviolet photoresist, if the wavelength of exposure is between 160nm and 270nm, we call it deep ultraviolet photoresist, and if the wavelength of exposure is between 290nm and 460nm, it is called ultraviolet Photoresist.

In addition, there are atomic photoresists, molecular beam photoresists, ion beam photoresists, X-ray photoresists, molecular photoresists, etc., but on the whole, we divide photoresists into Positive photoresist and negative photoresist.

Negative photoresist starts out as a soluble liquid, but after exposure to light, it becomes insoluble.

As for the positive photoresist, it is naturally the opposite of the negative photoresist. It is an insoluble liquid at first, but it becomes a soluble liquid after being exposed to light.

After Zhang Xingchen selected the photoresist, a small piece of transparent liquid appeared on the screen in his mind, and there was no doubt that it was filled with photoresist.

Without hesitation, Zhang Cheng grabbed the photoresist with one hand and looked around. No one drank the photoresist directly, and he drank it like plain water.

In fact, this is the materialization of knowledge, and it cannot be the real photoresist. No matter how you absorb it, you can absorb it into your mind, whether it is eating, drinking, or touching with your hands to make the photoresist flow into the body. In your own body, the effect is actually the same.

All roads lead to Rome.

Well, after Zhang Jiancheng drank this bottle of photoresist.Those piles of posture knowledge were slowly integrated into Mr. Zhang's mind,

With the absorption of photoresist knowledge more, Zhang Xingchen has a deeper understanding of photoresist.

"It turns out that photoresist is made like this."

As he absorbed more, Zhang Xingchen became more and more confident, believing that he could definitely produce photoresist, and making photoresist was definitely not a dream.

"I am confident that I can manufacture the bald glue used in one-nanometer chips." After Zhang Xingchen absorbed the knowledge of photoresists, he clenched his fists and said.

Just do what you say, Zhang Xingchen started to work with Xiaobai based on his acquired knowledge, Zhang Xingchen was more instructive, and Xiaobai was the practical type.

With Zhang Xingchen's knowledge, Xiaobai kept adjusting the ratio.Constantly tweaked recipes, constant experimentation.And check the photoresist performance one by one.

It is such repeated and boring work that makes the photoresist produced by Xiaobai get closer and closer to the ideal value.

About a month later, Xiaobai held a small test tube filled with an unknown liquid, which was undoubtedly photoresist.

Xiaobai said excitedly: "We have finally manufactured photoresist, which can be used in the manufacture of one-nanometer chips."

His assay performance and mechanical performance are very good, especially the optical performance of the detector is extraordinary.The ability to absorb light is very strong.
After being irradiated by light, it can quickly absorb light, making the possibility of light diffusion to the outside world very small, and the absorption rate of light is almost 100%.

This makes the manufactured chips more stable and less error-prone.

"The photoresist we manufactured is also very resistant to infection, and it is difficult to be affected by external factors, such as temperature. There is a slight difference in temperature, and the effect on the photoresist is minimal. It can be said that there will be no Influence."

"Furthermore, the chips manufactured using our photoresist have a very good circuit pattern forming effect, which can fully meet our design requirements."

"It can deal with various complex situations. Even if we apply a thin layer of photoresist, in this case, there will be no defects such as pinholes and bubbles."

"If the photoresist is applied thickly, the effect of the circuit diagram formed in this way will not be affected in the slightest, because our work can maintain the resolution at a very good level, and the edges of the manufactured circuit diagram will not appear jagged. phenomenon, the edges are very straight."

“This is the most advanced photoresist we can make, and we call it star photoresist.”

(End of this chapter)