SMT passive component and PCB design target structure

What do we need to know about some passive components processed by SMT? Here you can fully understand the following aspects:

1： Inductor: The ability of a coil to store energy in a magnetic field is called an inductor, and this coil is called an inductor. Inductors are mainly used to prevent electromagnetic interference and filter noise in current. They are widely used. However, the technology and scale of chip inductance production in China are still insufficient, and there is no manufacturer specializing in inductor production.

Resistors: The function of resistors is to adjust the voltage and current in the circuit. They can be divided into three categories according to materials and product packaging.

2： Capacitor: When two conductive materials are separated by a medium to store the static electricity that may be generated, it is called a capacitor. There are many kinds of capacitors, which can be divided into more than 30 types according to the materials used. Domestic manufacturers mainly produce aluminum electrolytic capacitors, ceramic capacitors and plastic film capacitors.

3： What the investor Z often sees in the report is one kind of ceramic capacitors - MLCC. Basically, ceramic capacitors can be divided into two categories, one is single-layer ceramic capacitors, and the other is multilayer ceramic capacitors (MLCC). Because of its small size, large relative capacitance, low loss rate in high-frequency use and high stability, MLCC has a promising prospect in the light, thin and short future of electronic products, mainly used in motherboards, notebook computers, mobile phones, scanners, optical drives, modulation demodulators, etc

Goal and structure of PCB design

The PCB proofing manufacturer will tell you the PCB design goals, structure, operation steps and precautions

Electrical principle and mechanical structure design, determine the size and structure shape of PCB according to the overall structure. Draw the outline process diagram of SMT printed circuit board, mark the length, width and thickness of PCB, the position and size of structural parts and assembly holes, and reserve the edge size, so that the circuit designer can carry out wiring design within the effective range. The selection of assembly form depends on the type of components in the circuit, the size of the circuit board, and the equipment conditions of the production line.

PCB board proofing shares the selection principles of PCB assembly form for you: follow the principles of optimizing process, reducing cost and improving product quality. First determine the overall objectives of PCB product function, performance indicators, cost and overall dimensions of the whole machine. When developing new products, first position the performance, quality and cost of the product In general, any product design requires tradeoffs and compromises between performance, manufacturability and cost, so the purpose and grade of the product should be positioned first during design.