Unless the datasheet of the TQFP part mentions a keep-out area, a safe minimum distance would be such that there is solder resistance at least as long as the track is thick, preferably twice that much, between the TQFP and the capacitors.
This would ensure that solder surface tension does not drag the cap right into the TQFP pin’s solder pool and cause misaligned or bad connections.
Lee mas: Diseño y diseño de PCB
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