BGA
Processors · 3 specs
Direct Answer
BGA (Ball Grid Array) solders the chip directly to the board using an array of solder balls -- not a removable socket connection at all. It's common in laptops, ultra-compact devices, and embedded/mobile processors where board space and thinness matter more than the ability to swap the chip later.
Source: Surface-mount packaging technology · Last reviewed Aug 28, 2026
Specs
| Mounting | Solder balls, permanently attached to the board |
| Upgradability | None -- requires specialized rework equipment to replace |
| Typical Use | Laptops, ultra-compact devices, embedded and mobile processors |
No Socket At All
Unlike LGA and PGA, which both connect to a removable socket, BGA packaging solders the chip directly to the circuit board via an array of small solder balls on its underside -- surface tension during the soldering process pulls the package into precise alignment as the solder cools. Using the whole bottom surface of the package for connections, rather than just its perimeter as older packages did, packs far more connections into a smaller footprint, and the very short distance between the package and the board gives BGA genuinely better electrical performance (lower lead inductance) than socketed alternatives.
That direct-solder connection is also BGA's defining limitation: once installed, the chip cannot be removed or replaced without specialized rework equipment, and hand-soldering a BGA package reliably is extremely difficult. That permanence is an acceptable tradeoff -- often a deliberate advantage for space and thinness -- in laptops, ultra-compact desktops, and embedded or mobile processors, where upgradability matters far less than fitting the most capability into the smallest, thinnest space.