The stamp - hole process is a specialized technique used in PCB manufacturing that involves creating a series of small holes, resembling stamps, around the perimeter of the PCB. PCB boards with the stamp - hole process offer unique advantages, especially in applications where easy separation, mechanical strength, and component attachment flexibility are required.

One of the main purposes of the stamp - hole process is to facilitate the separation of PCBs from a larger panel. Similar to the V - CUT process, it allows multiple PCBs to be manufactured as a single panel, reducing production costs and increasing efficiency. However, unlike V - CUT, which creates a continuous groove, the stamp - hole process uses a series of discrete holes. These holes are typically drilled or punched in a pattern around the edge of the PCB. When it's time to separate the individual PCBs, the board can be easily broken along the line of these holes. The size and spacing of the stamp holes are carefully designed to ensure that the separation is clean and does not cause damage to the PCB's internal traces or components.

In addition to separation, stamp - hole PCBs also offer enhanced mechanical strength. The presence of the holes around the perimeter can act as stress relievers, reducing the likelihood of cracking or breaking at the edges, especially during handling and assembly. This is particularly beneficial for PCBs that are used in applications where they may be subject to mechanical stress, such as in portable electronic devices or in industrial environments with vibrations.

The stamp - hole process also provides flexibility in component attachment. Some components, such as connectors or sensors, can be mounted directly onto the stamp - hole area. The holes can serve as mounting points or for passing wires through, allowing for a more versatile and space - efficient design. The design of the stamp - hole pattern needs to be coordinated with the overall PCB layout, ensuring that it does not interfere with the routing of traces or the placement of other components. During the manufacturing process, precise control over the drilling or punching of the stamp holes is required to ensure consistent quality. The holes should be of the correct size, shape, and depth, and their alignment should be accurate. PCB boards with the stamp - hole process are used in a variety of applications, including consumer electronics, medical devices, and IoT products, where their unique features contribute to the efficient manufacturing, reliable performance, and flexible design of electronic products.