PCB Blogger-China PCB Factory,HOYOGO

PCB prototype refers to the trial production of printed circuit boards before mass production. It is mainly for PCB engineers to design circuits and complete PCB layout, and then go to the factory for a small batch trial production process, that is, PCB prototype. The production quantity of PCB prototype usually has no specific boundaries. Generally, engineers call it PCB prototype before the product design is confirmed and tested. Nowadays, the prototyping market is mixed with various shoddy products, so how to choose a reliable   PCB prototype manufacturer   has become the most important consideration for students and designers. Precautions for PCB Prototype: 1.  Please choose the number of prototype carefully to effectively control the cost. 2.  Please specially confirm the device package to avoid prototype failure due to package error. 3.  Please conduct a comprehensive electrical inspection to improve the electrical performance of the PCB. 4. Please do a good job of signal size la

  In the screen printing process of the circuit board, it can be divided into 9 parts and 56 variables, which requires correct operating procedures or the following phenomenon will occur. 1. No matter how the screen is pulled, the screen cannot be pulled evenly, otherwise it will often break. 2. The screen cloth and screen frame are not firmly adhered, and dry slowly, or cannot be removed. 3. The screen of the mesh is easy to fall off or break automatically. It will break or fall when dry. 4. There are many meshes on the template, for example, translucent meshes. 5. The edge of the image on the template is serrated. 6. When the template image is washed, some parts of it may not be washed out, or all of them may be washed out. 7. The substrate is not aligned with the original film. 8. It is easy to stick the board during printing, or the image is not clear. 9. The line image on the template is curved like an earthworm. 10. When printing a single layer board, the printing number is small

The development of electronic products inevitably goes through the trial production process of the circuit board (PCB). The most commonly used method is to put the designed PCB file directly into a professional  circuit board factory  for direct production. The circuit board factory calls this process "proofing". This process usually takes 3 days to a week. Since time is the life cycle of the product during the product development process, the product development process usually goes through 3 to 5 times, and more than 10 changes make the developer unable to bear too much waiting. So in the laboratory environment, developers use various methods to achieve rapid board production. There are mainly physical methods and chemical methods.   Physical  M ethod: Through the use of various knives and power tools, etc., manually remove unnecessary copper on the circuit board. This method is laborious and has low accuracy. Only relatively simple circuits can be used.   The main disadvan

Circuit board impedance refers to the parameters of resistance and reactance in the circuit board, which mainly hinders the alternating current. In the process of circuit board production, impedance processing is inevitable.   1. The production process of the impedance circuit board should go through the process of plated though hole, electroplating tin, connector soldering and other processes. And the materials used in these links must ensure low resistivity to ensure that the total impedance of the circuit board is low, so as to meet product quality requirements and can work normally.     2. The tin plating of the impedance circuit board is the most prone to problems in the production of the entire circuit board, and is the key link that affects the impedance. The biggest defect is easy to change color, easy to oxidize or deliquesce, and poor solderability, which will cause the circuit board to be difficult to solder, high impedance, poor conductivity or unstable performance of the w

Copper deposition is an important part of PCB design. No matter what kind of PCB design software provides smart Copper clad function. So how to clad copper?     In fact, the so-called copper is to use the free space on the PCB as a reference plane, and then fill it with solid copper. These copper areas are also referred to as copper fills. The significance of copper plating is to reduce the impedance of the ground wire and improve the anti-interference ability. Reduce voltage drop and improve power efficiency; connecting to ground wire can also reduce loop area. In order to keep the PCB from deforming as much as possible, most PCB manufacturers will also require PCB designers to fill the copper area or grid-like ground wire in the open area of the PCB. If PCB has more grounding, such as SGND, AGND, GND, etc., how to clad copper? According to the different positions of PCB surface, we use the most important "ground" as the reference to clad copper independently, and separate d