PCB Blogger-China PCB Factory,HOYOGO

        Via plugged with resin can solve the problems that green oil plug holes can't solve, but the characteristics of the resin used in this process need to overcome many difficulties in production in order to obtain good quality resin products. So why do PCB   vias plugged with resin ?   Traditional BGA may make vias between pads to the back for routing.  If the BGA is too dense, it is impossible to route from the  vias   to the back, but you can drill directly from the pad to   other layers   for routing , then plug the  via s with resin, and plate copper to form the pad.   If only holes are made on the pads without resin plug holes,  it will easily lead to short circuit on the back and virtual   soldering   on the front.     The PCB vias plugged with resin process includes drilling, electroplating, plugging, baking, and grinding. The holes are drilled and copper plated, then the resin is plugged and baked, and the resin is ground flat by grinding. Because the ground resin doe

       Do you know why the importance of line width and line space in PCB cannot be ignored?  Because they will directly affect the performance, reliability, etc. of the circuit board. The following will take you to understand the importance of line width and line space in PCB:   1. Electrical   P erformance Line width and line spac e can   affect the electrical performance of the circuit board.   Line width determines the resistance of the wire, and line space affects signal crosstalk. The correct selection of line width and line space can ensures the signal integrity and stability of the circuit board.     2.  Power  T ransfer and  T hermal  M anagement Line width selection is critical for power transfer and thermal management.   Wider wires may be able to handle higher currents, but will also increase power losses. The choice of line width and line space also affects the distribution of heat on the circuit board and is critical to thermal management.     3.  Impedance   Control   M

       Reflow soldering and wave soldering are 2 common soldering methods in PCBA processing. What is their role in PCBA processing? What ’ s the differences?   What is Reflow Soldering? It is to heat and melt the solder paste pre-applied on the pad, and the electronic component pins or welding ends on the pad are electrically interconnected with the pad on the PCB, so as to achieve the purpose of soldering electronic components on the PCB board. Reflow soldering is generally divided into preheating zone, heating zone and cooling zone.     What is wave Soldering? It is to use a pump to spray the molten solder into a wave soldering, and then pass the pins of the electronic components to be soldered through the wave soldering to realize the electrical interconnection of the electronic components and the PCB board.  Wave soldering is divided into four parts: spraying, preheating, tin furnace and cooling.     The difference between wave soldering and reflow soldering: 1. Reflow soldering i

       In SMT patch processing, stencil and red glue are two commonly used items. Stencil   is used for solder paste on printed circuit boards, while red glue is used for glue on printed circuit boards.  Do you know the difference between these two item?   1. Stencil needs better support to ensure printing quality, so it is harder than red glue. The red glue needs to have better contact with the circuit board to ensure that the glue can be evenly coated, so the red glue is softer than the stencil.     2. Stencil is usually made of stainless steel because stainless steel not only has good strength and corrosion resistance, but also has a smooth surface and will not affect the printing quality. Red glue is usually made of polyester film because polyester film is soft and has good transparency and low temperature resistance. This material can ensure that the red glue is evenly coated and help processors better understand their operation process.     3.  The  stencil   needs to be placed d

       The mobile phone camera is one of the important parts of the mobile phone.   In the process of assembling mobile phone cameras, FPC is essential. Without the support of FPC, the camera of the mobile phone cannot take pictures and generate pictures. So what role does FPC play in the camera?   In the composition of the mobile phone camera, the FPC is the circuit connection part of the CMOS sensor.   One end of the FPC can be connected to the gold wire of the CMOS sensor, and the other end can be connected to the mainboard of the mobile phone, thereby realizing a complete circuit. In the camera of the mobile phone, the functions of the FPC are as follows: 1. Provide electrical characteristics and play the role of electrical connection; 2.  Provide mechanical properties to support the fixation and assembly of electronic components; 3.  It can realize automatic mounting, welding and testing between integrated circuits and electronic components.     The FPC in the mobile phone camera

  What is Red Glue? Red glue is a kind of polydilute compound, it will solidify after heating, the freezing point temperature is 150  ℃ , and the paste will become solid directly.       What is Solder Paste? Solder paste is a new type of soldering material that came into being with SMT.   It is a paste-like mixture formed by mixing solder powder, flux and other surfactants, thixotropic agents, etc.       The Difference between Solder Paste and Red Glue: 1. Red glue is red paste, and solder paste is gray paste.     2. The main function of the red glue is to fix the components on the PCB, so as to prevent the components from falling off during wave soldering. Red glue does not conduct electricity, it only plays a role in fixing. Solder paste is to solder the components on the PCB pads, and can complete the mechanical and electrical connection between the components and the PCB through the current.     3. The red glue is applied on the PCB solder mask between the two pads. The solder past

        In the PCBA factory , testing is required after PCBA processing is completed. Its purpose is to test whether each function can operate normally by simulating various operations and environments of the product in actual use. Do you know what tests are required after PCBA processing?   1.  Electric Test Testing personnel will use special testing instruments to check various circuit on the PCBA.  By applying the appropriate voltage and current, testing personnel can determine whether the circuit is connected correctly and whether the electrical performance is normal.  This step is essential to ensure the safety and stability of electronic products.     2.  Communication Test For electronic products that need to communicated with other devices, testing of communication functions is essential. Testing personnel simulate various communication scenarios, such as network, Bluetooth, WiFi, etc., to verify whether the product can communicate and transmit data normally in different commun

       In PCBA factories , the selection of equipment plays a vital role in ensuring the quality of PCBA. Correct selection and use of equipment can improve production efficiency, reduce defective rates, and ultimately provide customers with high-quality products. Do you know what equipment can ensure the quality of PCBA?   1.  SMT  M achine SMT machine is the one of the most important equipment.   Its main function is to pick up components from one location and place them accurately on the PCB board.   The accuracy and stability of the SMT machine are crucial to the quality of PCBA. High-precision SMT machines can accurately place components at designated locations to avoid errors and  error accumulatio n.  SMT machines with higher stability can maintain accuracy during high-speed production and improve production efficiency.  Therefore, when selecting a SMT machine, factors such as accuracy, stability, and production speed need to be considered to meet customer requirements for PCBA