Connectors Compatible With Micro Via
A micro via is a small hole in a circuit board that can be used to connect layers. This technology is an essential tool for PCB designers. It allows for greater wiring density and can reduce internal noise by shortening the distance signals have to travel. It can also eliminate parasitic loads and stubs in the wiring, which improves signal quality and strength. However, there are some challenges when using this technology in high-density printed circuit boards.
The main challenge is that using new HDI technologies increases the cost of manufacturing. The reason is that the technology requires more steps and materials than older techniques. However, the increased wiring density more than offsets this increase in cost.
Another challenge is that microvias require careful design to avoid problems with voiding, which can cause failure in the long term. This is because the plating process tends to form a copper void in the middle of the barrel. This is caused by the way the plating solution curves inward into the micro via body, concentrating stress on that area. This stress can cause the via to fail in a relatively short time under certain conditions, such as thermal cycling and mechanical shock.
Types of Connectors Compatible With Micro Via
To avoid this, a designer must choose the right via size and use the proper plating technique. The best way to do this is to use a combination of conformal and pulsed plating, which will fill the entire body of the via with solid copper and prevent voids. It is also important to keep in mind that the copper plating thickness at the butt joint of a microvia should be at least half as thick as that of the surrounding copper.
In addition, the dimensions of the microvias must be carefully designed to fit the maximum mating dimension of the connectors being used. This will help ensure that the connectors are able to sit in place and be connected without interference from the PCB’s frame. This is especially important for fine pitch board-to-board connectors, such as BGA, which have very small solder balls and therefore need to have a smaller diameter than standard pin connectors.
There are a few different types of connectors that can be used with micro via. The most common are circular connectors. These are often used for power, ground, and signal connections between circuit boards. They can be found in many electronics devices, including laptops, tablets, and phones. Common types of circular connectors include the DB9 male connector, DA15 female connector, and a newer type called the USB C connector.
Another type of connector that can be used with micro via are ball-in-hole (BiH) connectors. These are commonly used for power and signal connections between devices, but they can also be used to connect memory modules or expansion slots to a motherboard. BGA connectors have the benefit of being able to handle power, data, and signals at the same time, making them ideal for high-speed applications.
