Patent ID: 8273994
Filing Date: 2012-09-25
Classification: H05K

Abstract:
1. A printed circuit board (PCB), including a ball grid array (BGA), comprising: a first BGA pad having a circular shape; a first via having a circular shape, the circular shape of the first via overlapping a portion of the circular shape of the first BGA pad and a center of the first via being rotated diagonally relative to a center of the first BGA pad such that the center of the first via relative to the center of the first BGA pad is at a first angle with respect to a first axis that crosses the center of the first via and at a second angle with respect to a second axis that crosses the center of the first via, the first angle and the second angle both being greater than zero degrees and less than ninety degrees; a second BGA pad having a circular shape; and a second via having a circular shape, the circular shape of the second via overlapping a portion of the circular shape of the second BGA pad and a center of the second via being rotated diagonally relative to a center of the second BGA pad such that the center of the second via relative to the center of the second BGA pad is at the first angle with respect to a first axis that crosses the center of the second via and at the second angle with respect to a second axis that crosses the center of the second via, and the center of the second via being located at a first distance from the center of the first via and at a third angle relative to the center of the first via.