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When designing a four layer PCB circuit board, how to design the stack? Theoretically, there can be three schemes

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

PCB is mainly composed of pad, through hole, mounting hole, wire, component, connector, filling

According to functional classification, it can be divided into four types, mainly memory chips, microprocessors, standard chips, and complex systems on chip (SoCs). According to the types of integrated circuits, they can be divided into three categories: digital chips, analog chips, and hybrid chips.

In the production of electronic products, there will be a production process of printed circuit board. Printed circuit boards are used in electronic products in all industries. It is the carrier of electronic schematic diagram that can realize the design function and turn the design into physical products

According to the news from zhidongxi on June 28, according to money DJ in Taiwan, China, the cumulative sales of semiconductor equipment in Japan exceeded RMB 75.6 billion in May this year, the highest in the same period over the years