What is Jump Scoring
Jump scoring is a technique used during the process of panelizing printed circuit boards. It is similar to v-scoring, but with a key difference. In v-scoring, a score line is created that extends from one end of the board to the other, allowing for easy separation of the individual PCBs. However, in jump scoring, the score line stops just before the end of the board, leaving the border largely intact.
Jump scoring aims to create a stronger and more rigid border, resulting in a stiffer and stronger assembly panel. By leaving the border intact, the structural integrity of the panel is enhanced, which is particularly important when dealing with heavy components or thin laminates. This technique helps to prevent the PCBs from breaking away prematurely during the assembly process.
To achieve jump scoring, the cutting blades used for scoring are lifted off the laminate before reaching the end of the panel. This is done through proper programming of the blades. As a result, a small graduated scoring is created in the waste area, where the blade lifts off the panel. While this may make it slightly more challenging to separate the panels, the benefits of a stronger and more rigid assembly panel outweigh this minor inconvenience.