Abstract: One embodiment of the present invention is a production method for a three-dimensional shaped article, the method comprising the following: a mixing step for obtaining a dissimilar metal mixed powder by mixing a first metal powder (P1) and a second metal powder (P2) different from the first metal powder (P1); and a shaping step for sintering, or melting and solidifying, the dissimilar metal mixed powder obtained in the mixing step. Based on the part of the three-dimensional shaped article to be produced, the mixing ratio of the first metal powder (P1) and the second metal powder (P2) is changed in the mixing step.

Abstract: In an extension area of a transmission member composed of (4m+a) signal lines, a medium value DMe1 of the center-to-center distance Dk between each signal line belonging to a first partial group composed of m signal lines and a neighboring signal line thereof and a medium value DMe2 of the center-to-center distance Dk between each signal line belonging to a second partial group composed of m signal lines and a neighboring signal line thereof are smaller than a medium value DMe3 of the center-to-center distance Dk between mutually neighboring signal lines belonging to a third partial group composed of (2m+a) signal lines.