What is the status of Chinese chips On June 9, 2021, at the world semiconductor conference, Wu Hanming, an academician of the Chinese Academy of engineering, pointed out the current situation of China's chips: China still needs 8 SMIC's if it wants to complete the localization and replacement of chips. In short, now China needs 8 SMIC's
China business information network news: semiconductor is a kind of material with conductivity between conductor and insulator at normal temperature. It is also a material with controllable conductivity, ranging from insulator to conductor.
According to the number of microelectronic devices integrated on a chip, integrated circuits can be divided into the following categories:
High Density Interconnection (HDI) PCB is a kind of (technology) for the production of printed circuit boards. It is a circuit board with relatively high circuit distribution density using micro blind via and buried via technology.
It is generally considered that if the frequency of the digital logic circuit reaches or exceeds 45MHZ~50MHZ, and the circuit working above this frequency has accounted for a certain amount of the entire electronic system (for example, 1/3), it is called a high-speed circuit.
High Frequency PCB processing attention points.
