Manual inspection involves human errors, for example there aren’t certain references, it’s impos-sible to check apertures’ size in the order of few micron and it’s not possible to verify the rough-ness of stencil aperture wall, the dimension and the tension of the stencil. According to the industry statistical analysis: the current SMT 70% disqualification is caused by the unqualified printing and the main reason of the poor printing is related to the bad quality of the stencil. How to effectively control the quality of stencil aperture? Sunmenta has developed an intelligent optical inspection system capable to find many problems related to the stencil management by a pixel to pixel Gerber comparison, such as the inspection of the area, position, tension, offset, burr, foreign bodies and other defeats that are difficult or impossibile to detect. Once the inspection is completed, the AOI stencil inspection system, automatically generates a full report that can be linked to the MES organization of the company. The test results can be analyzed and shared with the quality and production management. See more on our Youtube Channel: