PCB knowledge

    In the 50+ years since printed circuits have become commonplace, the complexity and density of interconnect offered has increased markedly. For example, tracks that were 1mm wide successively became 0.25mm and 150µm, and 100µm is nowadays achievable in volume, although prudence suggests that such densities are not used for large areas. And holes, which used to be 0.9–1.2mm diameter for through-hole connectors, are now typically 0.35mm or less for vias. In other words, conventional printed circuit technology is still capable of meeting many of today’s requirements. Yet there is a grouping of products referred to as “High Density [...]

    High Density Interconnect or HDI boards are already one of the fastest growing technologies in PCB as it contains of blind and buried vias with microvias of.006 or less in diameter. They have a higher circuitry density than traditional circuit boards. Specialty equipment and trained technicians follow the process closely to achieve the perfect hidden via.   You can find 6 different types of HDI boards: Through vias from surface to surface With buried vias and through vias Two or more hdi layer with through vias Passive substrate with no electrical connection Coreless construction using layer pairs Alternate [...]

    Hitech Circuits is the most professional China PCB manufacturer, which is specialized in producing high quality and low cost High Density Interconnect PCB, Quick Turn PCB, Rigid-flex PCB, Flexible PCB, High Frequency PCB, Heavy Copper PCB and Metal Core PCB. Today Hitech Circuits is going to share the Common PCB board layout requirements with us.   In the common printed circuit board type, the layout design should pay attention to details are as follows: 1) single panel: In the case of low cost requirements typically use this type of panel. In the layout design, it is sometimes necessary to use components or [...]

        As is known to all, via is one of the important parts of multilayer PCB. The cost of drilling usually makes up 30%~40% of the cost of PCB manufacture.   Simply speaking, every hole on High Density Interconnect PCB may be called via.   Functionally, via can be divided into two types: firstly, used for electro-connection among layers; secondly, used for fixing components.   Technically, it may also be divided into three types: blind via, buried via and though hole. Blind via is located on the top and bottom surfaces of the PCB, deep and used for connection [...]

    If you and your company need a printed circuit board (PCB), you can order a prototype PCB from Hitech Circuits, which is the best china PCB manufacturer, in quantities as small as just one or two. You can make your own PCB by etching a laminated board, but with prices decreasing on commercially made PCB prototypes, you may find it more practical to order a PCB prototype for $50 or less.   Let me tell you how to get PCB prototype online： Decide what specifications you'll need, and look for companies online who offer those as basic options [...]

    As one of the most professional China PCB manufacturer, Hitech Circuits is specialized in manufacturing best quality and cheap price Quick Turn PCB, Rigid-flex PCB, High frequency PCB, Heavy copper PCB Metal core PCB and High Density Interconnect PCB.   Material selection for the construction of a printed circuit board is a critical step towards the final product. Global Circuits can assist you with material selection to ensure the proper materials for your boards applications while providing the best materials for your project budget. We have created a simple guideline to help you make the proper evaluation of [...]

    Printed circuit boards also call PCBs, PCB is composed of microminiature electronics, including resistors, capacitors and integrated wiring. These circuit boards are found in practically every electronic device, including VCRs, DVDs, stereos, televisions, computers, stereos and cameras. If you are building a computer from scratch or attempting to repair an electronic device, you may have to test PCBs. Today professional China PCB manufacturer Hitech Circuits is going to teach you how to test PCBs. 1. Inspect the PCB for visible flaws such as broken component connections or disjointed solder connections. Also, look over the entire board for corrosion [...]

    In accordance with the pad is designed to meet the requirements of the smallest diameter, the diameter of at least the terminal than the welding large diameter flange hole 0.5mm.  Must be in accordance with ANSI / IPC 2221 nodes required to provide testing for all pads. Node is between two or more components of the electrical connections. A test pad requires a signal names (node signal names), printed circuit board with the relevant reference point, and test pad xy axis coordinate position (note pads in the printed circuit board test which side). SMT fixtures need to provide [...]

      Hitech Circuits is a professional China PCB manufacturer, which is specialized in manufacturing high quality and low price High Density Interconnect PCB, Quick Turn PCB, Rigid-flex PCB, High frequency PCB, Heavy copper PCB and Metal core PCB. We always like to share some manufacturing, care and maintenance knowledge about PCBs. Today we are going to teach you how to remove metals from PCB.   A PCB is typically made by attaching a copper sheet to a substrate board, sometimes on both sides. The PCB manufacturer then creates the circuits by removing copper so that only the required [...]