Abstract: There are provided a substrate strip, a substrate panel, and a manufacturing method of a substrate strip. The substrate strip includes: a plurality of unit substrates including a glass core; and a glass core cover part disclosed on a side surface of the substrate strip on which the glass core is exposed.

Abstract: A printed circuit board and a manufacturing method thereof. According to one embodiment, a printed circuit board may include a core part; and a conductor pattern disposed on at least one surface of the core part, the core part includes a glass core having a side portion that is polished or thinner than a central portion of the core. According to another embodiment, a method of manufacturing the printed circuit board may include cutting a glass plate to form a glass core; and removing cracks from at least one side surface of the cut glass core.