Capacitor mounting board

A capacitor mounting board comprising:

• a substrate including a first substrate main surface on which an integrated circuit (IC) is to be mounted and a second substrate main surface on which a power ball grid array (BGA) to connect with a motherboard is provided;
• (M×N) power lands for the power BGA on the second substrate main surface of the substrate two-dimensionally in a first direction and a second direction that intersect each other, where M and N are integers greater than or equal to 2;
• and
• (M−1)×(N−1)capacitors, as seen from the second substrate main surface of the substrate, each in a region surrounded by (2×2) power lands, among the (M×N) power lands, that are adjacent to each other in the first direction and the second direction;
• wherein
• the substrate includes a core layer and two buildup layers respectively provided on the first substrate main surface side and the second substrate main surface side of the core layer and each of which includes a power wiring layer;
• each of the (M−1)×(N−1)capacitors:
• is embedded in the core layer of the substrate;
• includes a first capacitor main surface facing the buildup layer on the first substrate main surface side of the substrate, a second capacitor main surface facing away from the first capacitor main surface, a first capacitor side surface and a third capacitor side surface facing away from each other, and a second capacitor side surface and a fourth capacitor side surface facing away from each other;
• includes a plurality of electrode terminals on at least the first capacitor main surface and connected to the power wiring layer of the buildup layer on the first substrate main surface side of the substrate;
• has a rectangular or substantially rectangular shape at the first capacitor main surface and the second capacitor main surface;
• and
• is arranged such that an edge of the first capacitor main surface on the first capacitor side surface side and an edge of the first capacitor main surface on the third capacitor side surface side are inclined at about 45±5 degrees with respect to a straight line extending in the first direction on the second substrate main surface of the substrate.