PCB News - ​Reliability of PCB boards and PCB components

Reliability of PCB boards and PCB components
PCB is becoming more and more important, and the reliability of assembly has become an important manifestation of the competitiveness of electronic products.
Electrons are the components of atoms, and their use is called electrons, which play an important role in many household appliances. Basic electronics includes the smallest "electronic components" that form part of everyday electronic equipment. These electronic components include resistors, transistors, capacitors, diodes, inductors and transformers. They are powered by batteries and work according to certain laws and principles of physics. Basic electronics also involves the measurement of voltage, current (electron flow) and resistance in the assembled working "circuit".
Principles of Electronics
All electronic devices follow a basic physical principle called Ohm's Law, that is, the voltage contained in the circuit is proportional to the current and resistance encountered in the circuit. The circuit is composed of electronic components, also called circuit components, connected to the battery by wires and designed according to Ohm's law.

1 Introduction
With the rapid development of information technology, especially the content and status of modern weapon systems has become a key factor in determining the overall strength of weapons and equipment, and the quality of electronic products directly determines the effectiveness of weapons and equipment on the battlefield. Therefore, it is extremely urgent to improve the assembly quality of electronic products, especially the reliability of PCB board assembly.
2. Reasonable selection and design of components
Reasonable selection and design of components is a key link in PCB board-level assembly. According to the requirements of the process, equipment and overall design, according to the electrical performance and function of the determined components, the SMC/SMD package form and structure are selected, which is decisive for the circuit design density, productivity, testability and reliability [1] The role of. At present, the specifications and structures of SMT components are diverse, and integrated circuits that achieve the same function may have multiple packaging forms; in the design of the circuit PCB, it should be based on the specifications of the components provided by the market supplier and the capacity of the existing production equipment And precision make a reasonable choice.
3. Selection and design of PCB substrate
The performance of the substrate is an important part of the PCB module, which will greatly affect the electrical performance, mechanical performance and reliability of the electronic components, so it must be carefully selected.
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