Chapter 69: Wafers

Seeing Alison's suggestion that Ambrera set up a wafer fabrication factory, Ling Shizhe was not surprised at all, and signed and agreed to Alison's suggestion without any consideration.

Call Christopher and give him a copy of the technical information on the process preparation of 24-inch silicon wafers.

This set of 24-inch silicon wafer process preparation technology is the most familiar process technology that Ling Shizhe has been exposed to in his previous life, and the process of each process, the working principle of each equipment, the composition and structure of the equipment, the materials used, important process parameters, etc., are clearly marked on the data.

After reading the information carefully, Christopher said to Ling Shizhe: "Boss, I don't understand, why do we still want to participate in the production of monocrystalline silicon raw materials?" The company's development mode of the whole industry chain will distract the group too much, and focusing on a certain item is our best choice. ”

"Jim, don't care whether the company's development method is beneficial or unprofitable, you first look at this process, can it all be realized with our current technology?" Jim is a shortened name for Christopher.

"BOSS, your production technology is completely subversive in terms of monocrystalline silicon process technology on the market, and it is completely different from the traditional wafer process thinking, BOSS If you insist, then we first need to set up a wafer material laboratory, which has a lot of blank data and needs to be completed by experiments, even the data you mentioned need to be verified through experiments.

However, the whole technical idea you mentioned is very novel, and I think it is theoretical...... There shouldn't be any big problems, the key points of the technology, the boss you have pointed out, which makes us take a lot of detours. However, boss, in order to ensure the smooth progress of this plan, I still suggest that it is better to find experts to demonstrate whether your process theory is correct, which is conducive to our better clear direction, if the idea is correct, we can do it in just one year, and we can achieve commercial production in two years.

There is no technical problem with the manufacturing process of the production equipment involved in this process, although its process requirements are very high, but with the strength of our machinery processing plants in Hong Kong and the United States, I believe that this will not be difficult for them, which is much simpler than IPS etching machine. There is no problem with the materials, the materials used above can be bought on the market, and the price is not very expensive.

However, boss, although we can make it, I dare not guarantee that the purity of monocrystalline silicon can achieve 100% of the standard of 18 9s, I will try to reach 12 9s as much as possible, and we will slowly improve its purity in the future; In addition, the 24-inch silicon wafer, I don't have the slightest certainty, after all, its requirements are too high, I try to ensure that it is in the range of 12 inches, and then, we are trying to find a way to increase its size area, do this, boss, what do you think? ”

Ling Shizhe nodded, when he handed over this set of monocrystalline silicon production process, he had already thought that with the current manufacturing technology, the purity of monocrystalline silicon and the size of the wafer may not be able to meet the process requirements on the drawings, as long as the purity can reach more than ten 9s and more than ten inches, it is a victory, and in the future, the production process will be slowly improved, and the design requirements will be fully met.

After all, the production process of this set of silicon wafers is a standard production process of 18 monocrystalline silicon with a purity of 18 9,24 inches, as long as these equipment can be manufactured according to the requirements, the purity and size requirements of the wafers are only a matter of time.

Christopher went down, he didn't mention anything about the focus development model, and Ling Shizhe was very satisfied with him at this time.

It's normal for Christopher to have this point of view, buying wafer raw materials from wafer factories and processing them into integrated circuits, which is a common development method adopted by all microelectronics factories around the world, they do not produce monocrystalline silicon raw materials themselves, they buy them from wafer manufacturers, and then process them, but this method is not suitable for the development of Ambrera.

Ling Shizhe can't disagree with Alison's opinion, because monocrystalline silicon is an indispensable basic material in the modern electronic manufacturing process, but the price of monocrystalline silicon raw materials at this time is too high, and the purity of monocrystalline silicon is not very ideal, the value has reached six 9, and now it is just barely meeting his process requirements, but after a few years of development to large-scale or even ultra-large-scale integrated circuits, only six 9 purity monocrystalline silicon can not meet his needs.

Large-scale integrated circuits have extremely high requirements for the purity of monocrystalline silicon, which must reach nine nines, and before he crossed, people have been able to produce monocrystalline silicon with a purity of eighteen nines.

Ling Shizhe upgraded the integration of Ambrera's chip factory as the first technical indicator of the factory, which to a certain extent, greatly accelerated the development of semiconductor process technology, if the purity of monocrystalline silicon could not keep up, the development of his semiconductor empire would inevitably be greatly affected.

In addition to purity, light is the size of the wafer is also one of the factors restricting the development of semiconductors, and even the most critical factor, because of cost and yield.

In the production of chips, the larger the size of the wafer, the better, and the larger the size, the more chips will be produced per wafer. For example Using a 0.13 micron process on a 200mm wafer can produce about 179 processor cores, while using a 300mm wafer can produce about 427 processor cores, the area of a 300mm diameter wafer is 2.25 quilts of the area of a 200mm diameter wafer, and the number of processors produced is 2.385 times that of the latter, in terms of price, a 300mm wafer is not much higher than a 200mm wafer, so this exponential increase in productivity can greatly reduce the manufacturing cost of chips, which is obviously liked by all chip manufacturers.

However, one feature of wafers that restricts manufacturers from increasing the size of wafers at will is that the farther away from the center of the wafer, the more likely it is to have dead pixels, and the farther away from the center of the wafer, the greater the number of dead pixels.

Wafers with dead pixels are unusable, and after receiving Alison's fax, Ling Shizhe thought for a long time whether he should take out the monocrystalline silicon production technology with a purity of 18 9s and a size of 24 inches in advance? If you take it out, will it have any adverse effects on him?

After thinking about it for a long time, he still decided to get it out in advance, and he will talk about any adverse effects later.

The chip output of Canada's chip industrial park has reached the standard of 30 million pieces per year, and with the emergence of blade servers and PC computers and solid-state drives, the demand for chips will become larger and larger, and the output of 30 million will not be able to meet the market demand in the future.

With the gradual upgrading of the semiconductor integration process, it is conceivable that in the future, the construction cost of the chip factory will be as high as possible, which will greatly increase the manufacturing cost of the chip, but what if the area of the wafer is increased from the current three inches to 24 inches? With the same number of factories, how much will the output of chips increase and how much will the cost be reduced? An annual output of 100 million chips? It's just a small problem, and it can be easily reached.

In the face of huge interests, Ling Shizhe didn't care about anything, and directly took out the 24-inch wafer process in advance, the two key indicators of output and cost, the temptation for him is too great, starve the timid, support the bold, afraid of a yarn, even if it causes a sensation, what will happen? I'm a genius, who am I afraid of, they will really slice me? I'm a cow, how to drop? If you don't accept that you make an area of ninety-nine inches, I will obey you.