Patent ID: 9119319
Filing Date: 2015-08-25
Classification: H01L,H05K

Abstract:
1. A wiring board, comprising: a first insulating layer containing a thermosetting resin; a first wiring layer stacked on an upper surface of the first insulating layer; a second insulating layer stacked on the upper surface of the first insulating layer, the second insulating layer containing a first photosensitive resin; a second wiring layer stacked on an upper surface of the second insulating layer, the second wiring layer electrically connecting to the first wiring layer; and a third insulating layer stacked on the upper surface of the second insulating layer, the third insulating layer containing the first photosensitive resin, wherein an outer side surface of the second insulating layer is flush with an outer side surface of the first insulating layer, an outer side surface of the third insulating layer is located inside the outer side surface of the second insulating layer in a plan view, and the upper surface of the second insulating layer connecting to the outer side surface of the second insulating layer is exposed from the third insulating layer.