Various devices and tools are used in the SMD board assembly process. One of the necessary equipment for SMD assembly is called SMD assembly template. This device is used in automatic assembly and manual assembly of electronic boards with SMT technology.
What is the SMD assembly template?
In order to perform soldering of SMD boards, it is necessary to place tin paste on the placement of electronic components so that the soldering process can be performed. The process of placing tin paste in SMD boards must be done carefully to avoid putting tin paste in places where the parts are not placed. Another point that is important in this process is the amount of tin paste placed on the board, which must be controlled. The SMD assembly template or SMD stencil template is responsible for placing the tin paste in the location of the components. The SMD assembly template is designed and produced separately for each board.
SMD assembly templates can be designed and produced in multiple numbers on one panel. By using these stencils, you can put solder paste on several printed circuit boards at the same time and increase the assembly speed of the board.
Type of Function Type of SMD Assembly
SMD assembly template is a flat plate that can be made of different materials. These plates are often metal and have holes on them. The holes on the SMD assembly template are made according to the type of board and its design. This template cannot be used to place tin paste on an SMD with a different design. The use of the SMD stencil is done by first placing the stencil on the board and then an operator pours tin paste on the stencil. Tin paste is spread on the surface of the stencil with non-conductive spatulas to make sure that the tin paste passes through all the holes of the stencil and is placed on the board.
The thickness of the SMD assembly template is determined according to the parts we want to place on the board. In places where electronic components with large dimensions are placed on the board and the height of the solder paste must be higher, stencils with greater thickness are used. Some electronic boards are a combination of SMD and DIP boards. In order to solder these boards, they first assemble the SMD parts, because with the placement of DIP parts, it is no longer possible to use the SMD assembly template.
Benefits of using SMD assembly templates
There are advantages to using an SMD assembly template that you should be familiar with. In the following, we will examine the advantages of SMD assembly templates.
Increasing the assembly speed: Using the SMD assembly template increases the speed of SMD board assembly, and in this regard it is much faster than Traditional methods are like silk screen printing.
Precise placement of tin paste in the location of electronic parts: Using the assembly stencil, the exact location of the electronic parts is smeared with tin paste. This reduces the wastage of tin paste and eliminates possible unevenness on the board surface.
Eliminating human error: In assembling the SMD board using stencil templates. The human errors that occur in the manual placement of tin paste are eliminated.
