The quality of your stencil design is affected by how well you understand the different stencil design rule and capabilities. Ensure you understand these rules and capabilities before you begin using your Pcb Stencil. This will allow you to have a high quality successful stencil design. Here are some of the major factors that affect the quality of your design.
The Size And Shape Of Your Stencil Aperture
The size and shape of your stencil aperture determines the uniformity, volume and definition of the material. Consider checking the size and shape of the apertures as this is critical to the success of the stencil design, specifically for the fine and ultra touch applications that require small amounts of material deposited with a greater precision.
Set The Right Final Aperture Size
Another major factor that affects the quality of design is the final size of the aperture. Keep in mind that the final size of the aperture will determine the volume of the solder paste that you will have printed on your Pcb Stencil. The thickness or height of the stencil will have a significant effect on the overall performance of the stencil. Therefore, you should consider using the correct specifications to avoid chances of rework while minimizing product defect rate.
Determine The Physics Laws
When using your Pcb Stencil determine whether it obeys the various physics laws. The different laws of Physics will effect how well the transfer of solder paste from the stencil to the stencil will be done. Make sure that the adhesion to the pad is greater than the stencils adhesion. Do not ignore to check other minor factors such as the wall roughness and the draft angle.
Stencil Dimensional Accuracy And Printing Position Accuracy
The dimensional accuracy of your stencil depends on the level of technology used to manufacture it, methods and the quality of the transferred data. On the other hand, the printing positional accuracy is affected by the alignment methods used. It is important that you have the right stencil which is fitted well so as to give you a high quality design. The PCB stencil is well manufactured with the right technology to give you successful stencil designs.
