XC3S400AN-4FGG400C Manufacturers

PCB, the abbreviation of printedcircuit board, is translated into printed circuit board in Chinese. It includes single-sided, double-sided and multilayer printed boards with rigidity, flexibility and rigidity torsion combination.

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-speed PCB design‌ refers to circuit boards designed for transmitting high-speed signals, which are usually transmitted at speeds in GHz (gigahertz).

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.

HONTEC thanks everyone for your continued support and hopes that we can have better cooperation in the future.

Flow chart of single-sided FPC circuit board: engineering documents - copper foil - Pretreatment - press dry film - exposure - Development - etching - film stripping - AOI - Pretreatment - coating film (or ink printing) - pretreatment before electroplating - electroplating - post electroplating - reinforcement - appearance punching - electrical measurement - appearance inspection - shipment;