BGA pad

Types of PCB Pads: Essential PCB Knowledge and Basic Information – Wellcircuits

What is a PCB PadA pad is the exposed area of copper on a circuit board where the component lead is soldered The electrical connection of all components is made via pads The design and placement o

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Quality Issues with Lead-Free Soldering in FR4 PCBs

The causes of voids in solder joints on FR4 PCBs include unequal volume ratios of solder alloy and organic materials, formation of voids in BGA pad solder joints, surface treatment films, oxidation of tin powder and flux, solder pad rejection, and absorption of water by the solder paste.

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