Side hole punching tool and side hole punching method

The invention relates to the technical field of semiconductor part processing, and discloses a side hole punching tool and a side hole punching method. The side hole punching tool comprises a limiting base, a fixing piece and an adjusting piece, the limiting base and the fixing piece are used for containing and abutting against the multiple to-be-punched pieces correspondingly, the limiting base and the fixing piece are connected through the adjusting piece, the distance between the limiting base and the fixing piece is adjusted, systematic punching is achieved, and the adaptation consistency is improved. A plurality of to-be-punched pieces are placed on a limiting base in an annular array mode, meanwhile, the plurality of to-be-punched pieces are combined into a regular circular outer contour, and punching positions are better and evenly divided; then a fixing piece is placed above the to-be-punched pieces, the fixing piece evenly abuts against the to-be-punched pieces at the same time, the fixing piece and