What types of pcb boards can be classified？
2023-08-03 11:26:24
PCBs, or printed circuit boards, are one of the most important components in electronic devices.
The first printed circuit boards used were paper-based copper-clad printed boards. Since the emergence of semiconductor transistors in the 1950s, the demand for printed circuit boards has risen dramatically. In particular, the rapid development and widespread application of integrated circuits, so that the volume of electronic equipment is getting smaller and smaller, circuit wiring density and difficulty, which requires the printed circuit board to be constantly updated. Currently the varieties of printed circuit boards have developed from a single panel to double-sided panels, multi-layer boards and flexible boards; structure and quality has also developed to ultra-high density, miniaturization and high reliability; new design methods, design supplies and materials for boards, board manufacturing process continues to emerge. In recent years, a variety of computer-aided design (CAD) printed circuit board application software has been popularized and promoted in the industry, in the specialization of printed circuit board manufacturers, mechanized, automated production has completely replaced the manual operation.
According to different ways of categorization, PCB boards can be classified into various types. Here are a few common types of PCB boards：
- Classification according to structure
Single-panel: single-panel only one side of the conductive path, the other side of the insulating substrate. This type of PCB is simple to make and less expensive, but it is not possible to realize double-sided wiring. Commonly used in applications that do not require high circuitry.
Dual-sided boards: Dual-sided boards are PCBs that have conductive paths on both sides. The two sides are connected by holes or pads. This PCB board can realize double-sided wiring, but the production is more complex, the cost is relatively high. Commonly used in general electronic equipment.
Multilayer boards: Multilayer boards are PCBs consisting of multiple layers of conductive paths and insulated substrates. This PCB can provide more wiring space, with higher reliability and stability. Commonly used in high precision electronic equipment and computers.
- Classification according to use
Signal boards: Signal boards are PCBs whose main function is to transmit signals. This type of PCB usually contains a large number of transmission lines, connectors, resistors and capacitors, and other components used to realize circuit functions.
Power supply board: Power supply board refers to the power distribution and voltage stabilization as the main function of the PCB board. This PCB usually contains power converters, filters, voltage regulators and other components used to provide a stable power supply to electronic devices.
Interface board: interface board refers to the interface conversion and communication as the main function of the PCB board. This PCB board usually contains various interface circuits (such as USB, RS232, Ethernet, etc.) and communication chips, used to realize the data transmission and communication between different devices.
RF board: RF board refers to the PCB board with RF signal processing as the main function. Such PCB boards usually contain components such as RF transceivers, filters, mixers, etc., and are used to realize RF signal processing in wireless communications, radar, radio, and other applications.
Sensor boards: Sensor boards are PCB boards whose main function is sensor signal processing. This PCB board usually contains a variety of sensors (e.g., temperature sensors, pressure sensors, light sensors, etc.) and signal processing circuits for monitoring environmental parameters or realizing automation control.
- Classification according to material
Paper boards: Paper boards are PCBs that use paper pulp as an insulating substrate. This kind of PCB board is low cost, but low strength, not suitable for high reliability applications. Commonly used in some low-cost simple electronic products.
Fiberglass boards: Fiberglass boards are PCB boards with glass fibers as the insulating substrate. This PCB has high strength and high temperature resistance, but the cost is higher. Commonly used in electronic products that require high reliability.
Epoxy resin board: Epoxy resin board is a PCB board with epoxy resin as the insulating substrate. This PCB has high strength and heat resistance, but the cost is relatively high. Commonly used in high-reliability electronic products.
Polyimide boards: Polyimide boards are PCBs with polyimide as the insulating substrate. This PCB has extremely high heat resistance and reliability, but the cost is very high. Commonly used in high temperature and high reliability requirements of electronic products, such as aerospace and military fields.
- Classification according to the production process
Organic board: Organic board refers to the use of organic materials made of PCBs. This PCB board production process is relatively simple, low cost, but lower strength, high temperature resistance is poor. Commonly used in some low-cost electronic products.
Inorganic board: inorganic board refers to the use of inorganic materials made from the PCB board inorganic board production process is more complex, higher costs, but has a higher strength and high temperature performance. Commonly used in high-reliability electronic products, such as aerospace and military fields.
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