SNLA426 june 2023 DS320PR1601 , DS320PR410
When multiple vias are required, proper placement of the vias becomes important for current return path. Vias need to be staggered and not placed in a vertically- or horizontally- aligned fashion. The issue with aligned vias is that the current return path becomes blocked. The common analogy used as explanation is the river and logs story. If you have multiple logs aligned, suddenly the flow of water becomes impaired given the water will hit all logs at once. The same idea applies here, multiple aligned vias will impede the current return path.