Patent ID: 7441221
Filing Date: 2008-10-21
Classification: G06F,H05K

Abstract:
1. A computer-readable recording medium that stores therein a computer program for generating design information related to a via hole that passes through predetermined layers of a multilayer wiring board and to a plurality of lands to be formed around the via hole on the predetermined layers, wherein the computer program causes a computer to execute: storing first information on a first shape and a first size of an internal layer land to be provided around a via hole on an internal layer and second information on a second shape and a second size of a surface layer land to be provided around a via hole on a surface layer, the second size being smaller than the first size; generating the design information, when designing a via hole that passes through a plurality of internal layers of the wiring board and designing a plurality of lands to be formed around the via hole on the plurality of internal layers, by applying the first information to each of the internal layers through which the via hole passes; and generating the design information, when designing a via hole that passes through the surface layer and at least one internal layer of the wiring board and designing a plurality of lands to be formed around the via hole on both the surface layer and the at least one internal laver by applying the first information to each of the at least one of the internal layers through which the via hole passes and applying the second information to the surface layer through which the via hole passes.