Why doesn't Huawei produce its own chips?

The global chip market can only accommodate three or four large fabs with super-generation technology. One more, the order will not be enough, and all will close down at a loss. Moreover, building a wafer factory requires a lot of capital and technical input, and it can't be built at once. Therefore, Huawei chips are generally developed and designed by themselves, and mass production is handed over to professional manufacturers.

Today, Chinese mainland's fabs only have the highest process technology of 28 nanometers, and have just started mass production, which is at least three generations behind foreign countries. As a big producer and consumer of mobile phones, there is not even a large wafer factory, and the key technologies are controlled by people, which is not conducive to development. However, it is not Huawei's turn to produce chips.

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When producing chips, a production line involves about 50 industries, many of which are carried out in independent factories, and the equipment used also needs special equipment factories to manufacture; The complexity of the process also determines the high manufacturing cost, which makes many small manufacturing plants discouraged, which is also an important reason for the difficulty in chip manufacturing.

Wafer processing also includes two processes. The former process is divided into several modules-lithography, thin film, etching, cleaning and implantation. The latter process is mainly packaging-interconnection, wiring and sealing. Before and after the two processes and other cumbersome procedures, each process is indispensable, and each item is crucial.

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