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A chip refers to a silicon chip containing integrated circuits, which is small in size and is a part of a mobile phone, computer, or other electronic device. If the most important organ of the human body is the brain, then chips are the "brain" of electronic devices. A chip is an integrated circuit, also known as a microelectronic chip, composed of many electronic devices, circuit components, organic matter, etc., packaged on a single silicon chip, and is one of the foundations of modern electronic technology. Because of its small size, low power consumption, high manufacturing difficulty, and high reliability

At present, most of the holes drilled in the double-sided flexible printed board are still drilled by the NC drilling machine. The NC drilling machine is basically the same as that used in the rigid printed board, but the drilling conditions are different. Because the flexible printed board is very thin, multiple pieces can be overlapped for drilling. If the drilling conditions are good, 10 ~ 15 pieces can be overlapped for drilling.

At present, the dividend ceiling of smart phones is gradually emerging, especially the competition in the Chinese market is particularly fierce. In January, Huawei's sales were 4.72 million units, a slight decrease of 0.4%, and sales were 10.89 billion yuan, a decrease of 1.5%.

Hong Hai cooperates with Sharp, and the outside world is most concerned about in the field of display panels, but the level of cooperation between the two parties is not only this.

The following five aspects are introduced to you: 1. Brief introduction of circuit board 2. Introduction of circuit board base materil 3. Basic stack structure of circuit board 4. Circuit board production process

Multi-layer PCBs are used as the "core main force" in the fields of communications, medical treatment, industrial control, security, automobiles, electric power, aviation, military industry, and computer peripherals. Product functions are getting higher and higher, and PCBs are getting more and more sophisticated, so relative to the difficulty of production Also getting bigger.