Patent attributes
According to various embodiments, an article including a glass or glass-ceramic substrate having a first major surface and a second major surface, and a via extending through the substrate from the first major surface to the second major surface over an axial length, L, the via defining a first axial portion, a third axial portion, and a second axial portion disposed between the first and third axial portions. The article further includes a helium hermetic adhesion layer disposed on the interior surface in the first and/or third axial portions and a metal connector disposed within the via, the metal connector being adhered to the helium hermetic adhesion layer. The metal connector fully fills the via over the axial length, L, the via has a maximum diameter, Φmax, of less than or equal to 30 μm, and the axial length, L, and the maximum diameter, Φmax, satisfy an equation:
