US 11,877,385 B1
Noise suppression structure for differential pair
Ching-Shan Chang, Taoyuan (TW); Kun-Tao Tang, Taoyuan (TW); Tsung-Ting Tsai, Taoyuan (TW); and Chien-Lin Chen, Taoyuan (TW)
Assigned to FIRST HI-TEC ENTERPRISE CO., LTD., Taoyuan (TW)
Filed by FIRST HI-TEC ENTERPRISE Co., Ltd., Taoyuan (TW)
Filed on Jul. 14, 2022, as Appl. No. 17/864,396.
Int. Cl. H05K 1/02 (2006.01); H05K 1/11 (2006.01)
CPC H05K 1/0228 (2013.01) [H05K 1/025 (2013.01); H05K 1/111 (2013.01); H05K 2201/09236 (2013.01); H05K 2201/09545 (2013.01); H05K 2201/09718 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A noise suppression structure for differential pair, comprises:
a substrate having
a first side and a second side opposite to the first side;
a first plated through hole (PTH), and
a second plated through hole (PTH);
on the first side of the substrate, there being
a first metal pad surrounding the first PTH,
a second metal pad surrounding the second PTH;
a first metal trace having a first straight portion and a first bridging portion,
a second metal trace having a second straight portion and a second bridging portion, wherein
the first straight portion being paralleled with the second straight portion,
the first bridging portion electrically coupling the first straight portion to the first metal pad, and
the second bridging portion electrically coupling the second straight portion to the second metal pad;
on the second side of the substrate, there being
a metal ground having a clearance, the clearance being configured overlapping with at least partial of the first metal pad and the second metal pad, wherein
the metal ground has a metal area fully overlapping with the first bridging portion and the second bridging portion in a projection view.