Printed wiring board manufacturing method and processing system

A method for manufacturing a printed wiring board, comprising:

• placing, on a table of a processing system comprising a laser processing machine and a control device, an intermediate substrate comprising an insulating layer, a conductor layer including a plurality of conductor circuits formed on the insulating layer, and a first resin insulating layer formed on the insulating layer and covering the conductor layer;
• inputting, to the control device of the processing system, processing data including classification of the plurality of conductor circuits in the conductor laver under a plurality of positions at which the plurality of openings is to be formed in the intermediate substrate, and a plurality of shot numbers for forming the plurality of openings determined based on the classification of the plurality of conductor circuits in the conductor layer;
• and
• applying a laser upon the first resin insulating layer of the intermediate substrate using the laser processing machine of the processing system based on the processing data including the plurality of positions and the plurality of shot numbers such that the plurality of openings is formed in the intermediate substrate,
• wherein the plurality of conductor circuits in the conductor layer includes a plurality of power supply conductor circuits, a plurality of ground conductor circuits, and a plurality of signal conductor circuits, the classification includes stratifying the plurality of conductor circuits into a first category and a second category such that the plurality of power supply conductor circuits and the plurality of ground conductor circuits belong to the first category and that the plurality of signal conductor circuits belongs to the second category, and the inputting the processing data includes setting a shot number for forming the openings reaching the conductor circuits belonging to the first category smaller than a shot number for forming the openings reaching the conductor circuits belonging to the second category.