A semiconductor package device includes a first conductive wall, a second conductive wall, a first insulation wall, a dielectric layer, a first electrode, and a second electrode. The first insulation wall is disposed between the first and second conductive walls. The dielectric layer has a first portion covering a bottom surface of the first conductive wall, a bottom surface of the second conductive wall and a bottom surface of the first insulation wall. The first electrode is electrically connected to the first conductive wall. The second electrode is electrically connected to the second conductive wall.