Today, let's share how the 7nnm and 14nm process technology involved in chip processing is defined.

The 7nm and 14nm in the chip refer to the process of the chip. Everyone has learned about the nanometer. It is a unit of length. 1 nanometer = 10 minus 9 square meters. The smaller the number in front of nm, the higher the level of chip processing technology. The performance of the chip is better.

So how do you understand the process of the chip? Listen to me slowly.

A CPU chip, the raw material is originally extracted from silicon dioxide (sand), purified, processed, cut, and then engraved with billions or even tens of billions of transistors, and then sealed and tested to form a chip. The processing power and high-speed operation of the device are essentially realized through these transistors. The more transistors, the more powerful the computing power, operating speed, and performance, and the power consumption will also increase.

Nowadays, the performance requirements of chips are constantly improving, and people do not want to increase the number of transistors while increasing the number of transistors, so they can only reduce the size of the mos tube, so that the size of the final product can be adjusted under the premise that the size of the chip remains unchanged. will not increase. A simple analogy is that if you buy a TV and tell you that the performance is doubled and the size is doubled, you will definitely not agree!

XX nm refers to the width of the gate of the complementary oxide metal semiconductor field effect transistor (the aforementioned mos tube) formed on the CPU, also known as the gate length.

The current flows from the Source (source) into the Drain (drain), and the Gate (gate) is equivalent to the gate. The on-off of the source and drain at both ends is controlled by the voltage applied to the gate, and there will be current when the circuit is turned on. flow through, forming a loop. The width of the gate determines the loss when the current passes through, which is reflected in the heat generation and power consumption of the product. The narrower the width, the lower the required control voltage and the lower the power consumption. The minimum width of the gate (gate length) is the value in the XX nm process.

With the development of chips today, hundreds of millions of transistors have been integrated into a chip smaller than a thumb. The Apple A10 Fusion chip uses TSMC's 16nm manufacturing process and integrates about 3.3 billion transistors.

Reviewing Editor: Liu Qing

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