Designing for Selective Robotic Conformal Coating Processing: Rule 3 “Grouping Components”
Robot systems are generally not intelligent unless you pay for very sophisticated software based systems with clever sensing systems. All of these options cost money and time. To keep costs down consider that PCBs are 3D objects and considering the layout of the components and where you want conformal coating to be applied can save considerable problems.
Try and group all components of similar heights within the same general area of the assembly. This minimises the changes in dispensing height, enabling the machine to run efficiently at optimum speeds and give you the best coating coverage.
The Rules for Selective Conformal Coating are straightforward. Follow them and you can save money and time in your application process. However, if the Rules are not followed, the resultant circuit board design can challenge even the most sophisticated conformal coating system and its operator to achieve the finish desired.
Click Designing Circuit Boards for Selective Robotic Conformal Coating for further Rules.