• Post time: Jul-30-2020

    The uneven copper surface area on the circuit board will worsen the bending and warping of the board. The circuit boards are mostly multi-layer boards, and there will be vias between the layers. The vias are divided into through holes, blind holes and buried holes. The places where there are vias...Read more »

  • Post time: Jul-27-2020

    The rigid-flex board has both a rigid layer and a flexible layer. It is a multilayer printed circuit board.  However, due to the mixed use of multiple materials and multiple manufacturing steps, the processing time of the rigid-flex board is longer and the manufacturing cost is higher. The rigid-...Read more »

  • Post time: Jul-24-2020

    Immersion gold uses a chemical deposition method, which generates a layer of plating through a chemical oxidation-reduction reaction method. It is a kind of chemical nickel-gold layer deposition method, which can reach a thicker gold layer. There are the advantages of using immersion gold circuit...Read more »

  • Post time: Jul-21-2020

    Pollutants are generated during the manufacturing process of printed circuit boards, including residues of flux and adhesives and other contaminants such as dust and debris during the manufacturing process. If the PCB board cannot guarantee the clean surface, resistance and leakage will cause the...Read more »

  • Post time: Jul-18-2020

    There are the main features of the PCB using the gold-plated board. Why use Immersion Gold The crystal structure formed by immersion gold and gold board is different. Immersion gold will be golden yellow and yellower than gold board.The customers are more satisfied. Immersion gold is easier to we...Read more »

  • Post time: Jul-15-2020

    As the integration level of IC becomes higher and higher, IC pins also become denser and denser. The vertical soldering process is difficult to flatten the thin pads, which makes it difficult to mount SMT.  In addition, the shelf life of the soldering board is very short. The gold sheet just solv...Read more »

  • Post time: Jul-13-2020

    The surface treatment process of PCB board includes anti-oxidation, tin-spray, lead-free tin-spray, immersion gold, immersion tin, immersion silver, hard gold plating, full board gold plating, gold finger, nickel-palladium gold OSP and so on. The main requirements are lower cost, good solderabili...Read more »

  • Post time: Jul-09-2020

    Because the copper on the circuit board is mainly red copper, and the copper solder joints are oxidized in the air easily, which will cause conductivity. Poor tin eating and poor contact will reduce the performance of the circuit board and require surface treatment of copper solder joints. Immers...Read more »

  • Post time: Jul-07-2020

    A layer of metal plating is produced on the surface of the circuit board through chemical oxidation-reduction reaction.The nickel-gold coating deposited on the surface of the printed circuit with stable color, good brightness, smooth plating, and good solderability. Gold plating The vertical tin-...Read more »

  • Post time: Jul-02-2020

    In the process of producing six-layer PCB circuit boards, sometimes a large work board will exist at the same time, two and multiple PCB are put together. This is the PCB board assembly. So what do we need to pay special attention to when we do PCB assembly. Whether it is a six-layer PCB circuit ...Read more »

  • Post time: Jun-30-2020

    1. Chemical cleaning In order to obtain a good quality etched pattern, it is necessary to ensure that the resist layer is firmly combined with the substrate surface.It is required that the substrate surface is free of oxide layer, oil stains, dust, fingerprints and other contaminants. Therefore, ...Read more »

  • Post time: Jun-24-2020

    The ceramic substrate is made of high temperature co-fired alumina and aluminum nitride.The circuit boards are implemented in the engine compartment. PTFE PCB can withstand high frequencies and find their use in safety systems and radar technology. The metal core PCB consists of an aluminum base ...Read more »