Circuit board design and correction method determining a difference between groupings of layers

A board design aid method comprising:

• grouping a plurality of layers in a multi-layer board having a plurality of layers stacked therein into a plurality of pairs of layers based on design information of the multi-layer board, and deriving a difference of total amounts in respect to a board design element, each of the total amounts being related to each layer of a pair of layers of the plurality of pairs of layers, the board design element being related to a warp of the multi-layer board;
• and
• correcting, based on the difference of the total amounts, an amount of the board design element for at least one of layers among at least one of the plurality of the pairs of layers so that the difference of the total amounts of the board design element is maintained within a certain range.

A computer-readable recording medium having stored therein a program for causing a computer to execute a process, the process comprising:

• grouping a plurality of layers in a multi-layer board having a plurality of layers stacked therein into a plurality of pairs of layers based on design information of the multi-layer board, and deriving a difference of total amounts in respect to a board design element, each of the total amounts being related to each layer of a pair of layers of the plurality of pairs of layers, the board design element being related to a warp of the multi-layer board;
• and
• correcting, based on the difference of the total amounts, an amount of the board design element for at least one of layers among at least one of the plurality of the pairs of layers so that the difference of the total amounts of the board design element is maintained within a certain range.