Know More about BGA

Dated:2017-08-07      Popularity:983


BGA, or Ball Grid Array, is a small package on a printed circuit board that is used to mount or hold microprocessors, completing integrated circuits. This article will tell you strengths and weaknesses of BGAs.

Strengths of BGAs
There are several different systems in place in order to mount devices in an integrated circuit. One of the earliest is the PGA, or Pin Grid Array, which had many pins to connect the circuit as opposed to pads, which the BGA system has. Although the PGA worked for several years, as technology advanced the pins were more and more compacted together and were not as efficient as BGA, which uses pads that conform to the circuit through solder, which is heated and then melted onto the board. BGA is also efficient when it comes to overheating, as it is able to release heat extremely well preventing the temperature of the circuit rising. This is due to lower thermal resistance of the mounting package. BGAs, because they are so close to the printed circuit board they reside on, have better electrical performance.

Weaknesses of BGAs
As with every piece of technology, there are some unfortunate disadvantages that the BGA has which is your job to prevent any problems as a result of these drawbacks. BGAs are less flexible than previous iterations of grid arrays, meaning that bending or breakage may occur in a non-stabilized environment. Similarly, if you have a BGA under extreme conditions, such as extreme heat or extreme pressure, the solder on the BGA can fail to connect the components of the package. If you keep your BGAs in a stable system when manufacturing or working with them, then most of these problems will not affect you.


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