Printing: Its function is to leak solder paste or patch adhesive onto the solder pads of the PCB, preparing for the soldering of components. The equipment used is a printing machine (solder paste printing machine) located at the forefront of the SMT production line....

The soldering of surface mount resistors is actually the same for all surface mount capacitors and resistors. The basic steps for soldering most of these components are: selecting the PCB board, first fixing one pin of the solder patch component, and then soldering the other side. The following figure lists these steps; For more detailed information, please follow the following:...

SMT is a surface mount technology, which is currently the most popular technology and process in the electronic assembly industry. SMT surface mount processing mainly refers to attaching components to PCBs printed with adhesive or solder paste through mounting equipment, and then passing them through a soldering furnace. SMT surface mount processing has been recognized by manufacturers for its advantages such as high assembly density, small size of electronic products, and good high-frequency ch...

SMT tends to work at temperatures similar to hot soldering irons (about 375 ℃), making things faster and requiring fine pitch IC soldering techniques to work. The actual temperature setting will vary for each iron, but it may be between 330 ° C and 626 ° F to 380 ° C/716 ° F (although some inexpensive temperature controlled soldering irons may not have accurate temperature settings if they do not function properly, so try to set them higher)....

As usual, paying attention to some details can eliminate defects, such as solder paste printing errors and removing solidified solder paste from the board. Our goal is to deposit an appropriate amount of solder paste at the desired location. Dirty tools, dried solder paste, and misalignment between templates and boards can all result in residual solder paste on the bottom surface of the template or even during assembly....