Patent ID: 9433107
Filing Date: 2016-08-30
CPC Classification: H05K

Claim Text:
1. A printed circuit board, comprising: an insulating plate divided into an active region, a dummy region surrounding the active region, and an insulating region between the active region and the dummy region; first circuit patterns patterned on the active region of the insulating plate; an insulating layer on the active region, the dummy region, and the insulating region of the insulating plate; vias formed within the insulating layer corresponding to the active region of the insulating plate and connected to the first circuit patterns, respectively; second circuit patterns formed in circuit pattern grooves formed on a surface of the insulating layer corresponding to the active region of the insulating plate; and dummy patterns formed in dummy pattern grooves formed on a surface of the insulating layer corresponding to the dummy region of the insulating plate, wherein a shape of the dummy patterns is the same as that of the second circuit patterns, and wherein a printed circuit board unit includes only the active region and is formed by separating the active region from the dummy region by cutting.