EP3C40U484I7N Manufacturers

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.

There are many forms of matter, such as solid, liquid, gas, plasma and so on. We usually call materials with poor conductivity, such as coal, artificial crystal, amber, ceramics and so on, insulators. Metals with good conductivity, such as gold, silver, copper, iron, tin and aluminum, are called conductors. The material between conductor and insulator can be simply called semiconductor. Compared with conductors and insulators, the discovery of semiconductor materials is the latest. Until the 1930s, when the purification technology of materials was improved, the existence of semiconductors was really recognized by the academic community.

The US Government Accountability Office (GAO) released a technology assessment and analysis report entitled "5G Wireless Technology" (hereinafter "Report"), which outlines the basic situation of 5G, summarizes the opportunities that 5G can bring, and finally analyzes the United States. Challenges in deploying 5G.

Heavy copper PCBs are manufactured with 4 ounces or more of copper on each layer. 4 ounce copper PCBs are most commonly used in commercial products. The concentration of copper can be as high as 200 ounces per square foot.

According to the relevant person in charge of the management committee of Dongbao Industrial Park, the park has officially entered 6 companies, including Meidian, Weide, and Jiuxiang have been put into production, Jinrun Dingsheng is debugging equipment, Hongxin Huayin, Yongchuangxin are under construction Plant.

Faced with the increasingly high integration of hardware platforms and more and more complex electronic systems, the PCB layout should have a modular thinking, which requires the use of modularity in the design of hardware schematics and PCB wiring. , Structured design method. As a hardware engineer, on the premise of understanding the overall architecture of the system, first of all, we should consciously merge modular design ideas in the schematic diagram and PCB wiring design, combined with the actual situation of the PCB, plan the basic idea of PCB layout.