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PCB Spliced Board Skills

The main problem of spliced board is to save production cost. For PCB panel width ≤260mm~300mm, the cost varies according to different production lines. Because there may be a lot of materials. Generally one material gun corresponds to one module in our processing equipment, so if the spliced board exceeds the range of the module, the processing speed will become very slow.

 

The outer frame (clamping side) of the PCB panel should be carefully considered to ensure that the PCB panel will not be deformed after being fixed to the fixture (generally, it is not allowed to open V grooves on this side). The orientation should be the same. And there can be no mirror image, which will cause the coordinate positioning problem of the processing.

 

Secondly, at the edge (between the outer frame of the jigsaw panel and the internal small board, and between two small boards), the situation that the connector can not be extended occurs. If this situation exists, it will prevent the tool from separating after the welding is completed.

 

In order to ensure the position and level of the inspection board, we need to set more than three positioning points on the edge of the board. By optically detecting these three points, the reference coordinates of the entire processing and the level of the board can be obtained.

 

The correct approach is 5mm away from the edge. The distance is different when the direction of advancing is inconsistent (to distinguish the direction of entry). When setting the reference positioning point, usually leave a 1.5 mm non-resistance area around the positioning point. There can be no similar pads.

 

There must be at least three positioning holes in each small board. 3≤aperture≤6 mm, no wiring or patching within 1mm of the edge positioning hole (to prevent misjudgment).

 

PCB spliced board is mainly to save production and processing costs (which will make the machine processing speed several times faster). Unreasonable design will make the later period full of problems. You can take a closer look to prevent problems.

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XPCB Limited is a premium PCB & PCBA manufacturer based in China.

We specialize in multilayer flexible circuits, rigid-flex PCB, HDI PCB, and Rogers PCB.

Quick-turn PCB prototyping is our specialty.  Demanding project is our advantage.

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Email : [email protected]

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PCB Blog

Electromagnetic Compatibility Design of Mobile Phone PCB (1)

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The PCB Circuit Design of LED Switching Power Supply

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Electromagnetic Compatibility Design of Mobile Phone PCB (2)

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