How to Increase Yield of PCB Assemblies

By getting an experienced PCB assembly manufacturer to handle your printed circuit board assemblies, it can help to save your company a significant amount of time and resources that would otherwise be spent trying to create this technology yourself. Plus, it can help you to achieve significantly higher-quality PCBs since these exceptional PCB assembly companies are going to know how to optimize the performance of these components.

One of the ways that they can help to do this is by increasing the yield of the printed circuit board assemblies. Here is how they are able to accomplish the process of increasing the yield of PCBs.

Use Solder Paste Wedges

Anyone who is even somewhat familiar with PCB assembly will likely know that one of the most common methods of applying solder paste to the PCB is going to involve applying it in the form of a rectangle. This is because the pads are likely going to be rectangular, which means that the average PCB assembly manufacturer is going to see applying the paste in this shape as being the best option.

However, this is not the case and using applying the solder paste in a rectangular shape can actually be just as limiting for the PCB performance as it would be if they applied too much or too little of the solder paste.

Why Solder Paste Wedges Increase Yield

When it comes to the paste shapes used on your PCBs, you need to use a shape that allows you to use as little paste as possible without having it reach the point where it begins to negatively impact the PCB performance.

By using rectangular paste shapes, it drastically increases the possibility of experiencing bridged leads as a result of there being too much paste on the pads. However, when someone decides to switch to wedge paste shapes, the amount of paste is decreased, which means there is very little chance of the PCB having bridged leads.

Using wedge paste shapes also has the benefit of increasing the amount of distance between the shapes, which is a big contributor to the amount of yield that the PCB has. Together, these reasons are what makes using solder paste wedges the most effective tool for increasing the yield of printed circuit board assemblies.

Make sure to get PCB assemblies with exceptional yield by getting us to handle your printed circuit board assemblies at Star Engineering.

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