Smt Socket Adapters

Written by Rylee Newton
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SMT socket adapters are similar to pin connectors, while adding additional capabilities to the system itself. While a pin connector features a pin grid array (PGA) as its method of interfacing with the printed circuit board, socket adapters contain a PGA, plus an additional ball grid array (BGA), capable of connecting to a different type of component.

A BGA carries out the same duties as a PGA, but, instead of pins, it features rounded bits of solder for connecting to the PCB. The BGA device is aligned with the PCB, and its rounded solder receptors are aligned with a small copper pad. The device is then heated, causing the solder balls to become pliable and melt, due to surface tension. As the solder begins to melt, it is fused with the copper pad affixed to the printed control board, creating a permanent and sturdy link between the two.

Comparing the Major SMT Adapters

Ball grid technology was designed to alleviate problems that may arise from the use of pin connectors created with an increasingly excessive amount of pins. Although the interlocking of the pin connector to the printed circuit board is enhanced by additional pins in the PGA, it eventually proves too difficult to align and manage. As a result, ball connectors were designed to be permanently attached to the PCB, providing the highest level of efficiency yet. Whereas the complicated PGA layout of pin connectors required a precise alignment, and might still be damaged by excessive heat in the device, the ball connector is created to melt when aligned with the correct point-of-contact, allowing it to become an extension of the printed circuit board itself.

There are situations when pin connectors are preferable to ball. This is especially true when transmitting data from sophisticated semiconductors, such as microprocessors and memory chips, to the printed control board. While both connectors are equal when it comes to energy transmission, pin connectors seem to have the edge when it comes to relating data.


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