Patent ID: 9485867
Filing Date: 2016-11-01
CPC Classification: H01L,H05K

Claim Text:
1. A wiring board, comprising: an insulating board formed of ceramics, the insulating board having an upper surface, a lower surface opposite to the upper surface, and a side surface connected to the upper surface and the lower surface, the side surface including a first side surface part connected to the upper surface and a second side surface part connected to the lower surface; and a wiring conductor embedded in the insulating board and partly exposed from the first side surface part of the side surface of the insulating board, the side surface of the insulating board having a recess portion located between the wiring conductor exposed from the side surface of the insulating board and the lower surface of the insulating board, and the second side surface part located closer to a center in a lengthwise direction of the insulating board than the first side surface part to form the recess portion.