Halogen-free PCB board in the ammonia and phosphorus content is greater than the halogen content of ordinary halogen materials, so its monomer molecular weight and PCB Tq values are increased. In the case of heat, the mobility of its molecules will be lower than that of conventional epoxy resins, so the coefficient of thermal expansion of halogen-free PCB materials is relatively small.

With the advantages of high flatness, uniformity, solderability and corrosion resistance, the immersion gold process is widely used in the PCB surface treatment process of various electronic products.

Solder resist layer is the main protection layer of the board against corrosion and oxidation, without the protection of the solder layer, the performance of the PCB will degrade, shortening the normal working life of the equipment; more importantly, in the PCB assembly process, the solder resist layer provides a barrier between the solder joints and other conductive components of the printed circuit board, helping to prevent the formation of solder bridges.

PCB is a carrier for interconnected circuits, using conductors to form devices on an insulated substrate.

FR4 PCB material is epoxy resin laminated copper glass cloth PCB board, belongs to the all-glass fiber, generally used in the production of double-sided circuit boards and multilayer circuit boards.

Single-sided PCB require less material and are less expensive due to simpler design, less production time, and can be mass produced.

The factory production line has introduced precision circuit board production and inspection equipment, and has an experienced PCB production technology team, forming a perfect guarantee system and strict quality control.

2-layer PCB is the most common PCB circuit board with conductive graphics on both sides of the insulating substrate, which is widely used because both sides can be wired, greatly reducing the difficulty of wiring.

Thick copper PCB is suitable for strong electrical connections, imparting, and mixed connections of components. With the widespread use of PCB in automotive electronics and power communication modules, the functional requirements of thick copper PCB is increasing: PCB not only need to provide the necessary electrical connections and mechanical support for electronic components, but also need to be able to integrate power supplies, provide high currents and high reliability.

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PCB is a carrier for interconnected circuits, using conductors to form devices on an insulated substrate.

IC aging test board is used as a carrier for semiconductor IC. IC to be tested are connected to the IC aging test board through SOCKET or other means and put into the test machine to test the reliability of IC at different temperatures, voltages and signal lights.