A "jump score" or "jump V-score/V-groove" is a specific type of V-scoring used in panelized PCB design and fabrication. Similar to a standard V-Score panelization, a jump score etches a "V" shaped groove along a straight line marked on the PCB surface. The depth of this cut is controlled so that a third of the PCB thickness is removed from the top and another third from the bottom, leaving a thin layer of material that keeps the boards connected but allows them to be separated after assembly.

While a standard V-score typically runs continuously along the entire marked line on the board, a jump V-score features segmented cuts, creating a discontinuous line. This segmented approach provides additional stability and flexibility in certain manufacturing and assembly processes, enhancing control over the separation process. This becomes important when a board is large or includes heavy components close to the edges of the board, as a standard V-score may cause issues during assembly, such as causing an uneven sagging of the board, leading to improper soldering in reflow soldering machines. A jump V-score allows the boards to be scored while maintaining rigidity under these conditions.

Incorporating jump V-scoring into your design also minimizes material waste and increases the efficiency of rails. The segmented cuts from jump V-scoring allow for precise scoring in necessary areas while leaving more of the PCB intact, thereby reducing waste and optimizing the use of rails.

As jump V-scoring requires precise control and added complexity, an account manager must manually quote this special requirement. If this is a requirement you have, please feel free to contact us and send your Gerber files (RS274X format) to sales@7pcb.com or call us toll-free at 1-888-812-1949. We will respond within one business day.

Related Articles:

• V-Score Panelization
• The Sizes and Usable Areas of PCB Panels
• PCB Outline Layer And Keep-out Polygon Clearance
• PCB Panelization and Depanelization
• Panelizing Small Sized PCBs