How can we identify the BGA area of PCB?

Hear about BGA PCB Assembly service, but I never order it. How can we identify the BGA area of PCB? Just very curious.

BGA stands for Ball Grid Array. It is a style of component footprint. These footprints appear as a rectangular array of small circles – one where each “ball” of the component is attached.

There will generally be a rectangular outline around the array that corresponds to the edges of the component’s package, and probably also some silkscreen (written) information identifying the component.

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Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.
Picture of Oliver Smith

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

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How can I remove tenting on vias after assembly for debugging?

I have two BGA parts on a PCB, with a 32 bit wide bus with a few control lines and a clock line connecting them. Almost all of these traces are only on internal layers. There looks like a signal integrity problem on the bus. The good news is that the board only has parts on one side, and all the vias are through-all. Can anyone suggest good ways to remove the tenting over the vias so they could be probed with an oscilloscope, or at least be able to solder 30 gauge wire to them?

Is saving through-hole components viable?

I recently got my hands on some old electronics. After getting some to work and failing to get others to work. My Question-Is desoldering and salvaging through-hole and surface-mount PCB components viable, or should I just buy the components online?

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