Off topic:minimum nucleotide in a cluster of the illumina sequencing to get stable signals

Question

[Shicheng Guo]

Hi All,

minimum nucleotide in a cluster of the illumina sequencing to get stable signals? I mean, one template will form a cluster by bridge-duplication. I wonder what's the minimum nucleotide or duplication NGS need to get stable image information to provided A,T,C,G?

Best regards,