The current semiconductor manufacturing process has become more advanced, and the performance improvement of the chip is also very large, and many users have found that the smaller the process, the smaller the core area of the chip. It also produces great questions, why is the process becomes smaller, the area of the chip is also becoming smaller, why not use the same size chip to improve performance?
processor
Now the process of the chip is getting smaller and smaller, and the area of the chip is also constantly shrinking. The miniature and chip area of the process is constantly narrowing, the most important reason is cost savings. For semiconductor products, silicon wafers are a very expensive material, and the manufacturing chip must have a silicon wafer; however, the design cost is different, and the design cost will decrease with the increase of chip yield.
For example: The R & D cost of the 16NM process is $ 1 billion, and if the process has manufactured 10 million chips with this process, the cost is 100 dollars, but if it has created 100 million chips, the cost is only $ 10. Because the material is indispensable, but the design can be stared, which is why there will be reasons for improvement of the cost reduction.
An example is given, a 300mm diameter wafer can cut a 100-piece chip with a 16nm process, but if a 10nm process can be cut, a chip having a similar performance can be cut (smaller the chip area, the utilization of the corner angle. The higher it); the material cost will reduce half or more, and the product is naturally more competitive, the opportunity to profit and survival has increased. Furthermore, the etching of wafers is a very precise job, and the deteriorating product control of the wafer is also critical to the cost. Cutting into a small chip allows the chip to avoid a part of the flaw, so the smaller the chip is cut, the higher the good product of the chip. Of course, the large-scale chip is also, but the number is not much, and the price is expensive. The main reason is that the cost is too high, and the cost also increases with elevation.
semiconductor
So, the cost of a 14nm process is the same as the cost of making a Core i7, the answer is affirmative. Why do you say that their manufacturing cost is the same? Now the chip area of a dual-core Celeron and the area of 4 cores of Core i7 are the same, and the entire process has no difference. However, the reason why dual-core race and quad-core Core i7 are mainly due to the problem of core defects. The core of Core i7 does not have problems, and all aspects are also better, so it will become I7; but the race is different, and two cores are shielded in a piece of chip, which proves that these two cores are made up of certain defects or problems. (Do not exclude Intel will be partially shielded, making a medium and low-end processor for sale.)
Therefore, the big core processor is, but the cost is high, the demand is small, and naturally is rare.
Original link: https://www.eeboard.com/news/solver-2/2/
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