How to avoid the PCB tombstone in PCBA process?

How to avoid the PCB tombstone in PCBA process

The PCB tombstone , also known as the Manhattan or drawbridge effect, is a chip (passive) component assembly defect situation. The cause of the PCB tombstone is that the melting time of the solder paste at both ends of the part is inconsistent, resulting in uneven force at both ends of the chip component, which is relatively light in mass and will cause one side to roll up under the action of stress.

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Analysis of PCB selective soldering technology

Analysis-of-PCB-selective-soldering-technology

You will gain knowledge about selective soldering by reading this article. The technique known as selective soldering is used to attach components to printed circuit boards (PCBs) in a way that causes little or no harm. When precision is of the utmost importance or when working with components that are too small to be soldered using more conventional wave soldering methods, this technique is frequently used.

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