While the complete failure of a joint immediately has been made is bad enough, a latent or intermittent failure can be worse as it will cause the equipment to fail once it is in service. This article provides readers with detailed information about dry solder joints, their effects, and their...
A solder joint assembly technique applies controlled volumes of solder to pads of both package and substrate (31, 32). The two units are positioned adjacent each other with the pads and solder deposits mechanically maintained in registration with each other (34, 35). The assembly is reflowed ...
Although visual inspection can be used to find out some exterior cavities of solder joints, the cavities made during the soldering process will become such a huge threat that it is difficult to expose them out. However, cavities are formed due to a series of natural processes, which means ...
The wave soldering is a solder wave in which a molten liquid solder is formed into a specific shape on the liquid surface of the solder bath by the action of the pump, and the soldering end of the component can be realized, and the nitrogen can be formedby injecting nitrogen into the ...
Why is Solder Flux Used in Soldering?The main function or use of flux in any Printed Circuit Board Assembly or rework is to clean and remove any oxide and impurities from the board. These oxides deposited on the board may not permit good solder joints. If the solder joint is poor, there...
Through changing peripheral leads mode applied by traditional packages, BGA contains solder balls which are actually Pb/Sn solder bumped joints playing a role as leads under its base. Compared with traditional packaging mode, BGA features advantages of numerous I/O per unit area, low lead ...
Unfortunately, lead is also a very useful metal, and it was chosen as the go-to metal for soldering because of its low melting point and ability to create great solder joints. With the adverse effects of leaded soldering known, some key individuals and countries decided it was best to not...
The next step is to take out the soldering iron, then allow the solder to cool down on its own (naturally). Avoid blowing on the solder; this will lead to a bad solder joint, and what we want is to create great solder joints. Immediately it cools, you can go ahead to snip that ...
First, clean the PCB joints well using a blade or knife to remove dirt and corroded materials. If the joint is dirty, the solder joints will be loose. Clean the leads of components before placing them on the PCB. The leads will project out from the copper track side of PCB. Place resi...
or damaged, it may be necessary to replace the component to completely solve the problem. When dealing with this, you also need to make sure that the solder joints are clean by using appropriate tools such as a soft bristle brush or compressed air to remove dust and debris from the board...