Patent ID: 8604357
Filing Date: 2013-12-10
Classification: H05K,Y10T

Abstract:
1. A method forming, in a wiring board having a plurality of wiring layers, a first via and a second via that electrically connect a first wiring layer and a second wiring layer of the plurality of wiring layers to each other, comprising: disposing a first land and a second land on one surface of said wiring board in such a manner that the first land and the second land partially overlap with each other; forming said first via associated with said first land; forming said second via associated with said second land; forming a separator that consists of a single circular hole that separates said first land and said second land from each other; and forming one or more stubs that are part of one or more of the first via and the second via, the one or more stubs being components of the wiring board other than components of the wiring board between the first wiring layer and the second wiring layer, at least one of the one or more stubs extending from the second wiring layer to a surface of the wiring board, wherein each stub is an extra region that does not contribute to signal transmission, wherein the method further comprises removing said stubs.