Patent ID: 9613935
Date: 2017-04-04
CPC Classifications: H01L,H05K

Claim:
1. An LED module comprising: a substrate including rectangular main and rear surfaces which are opposite each other, each of the main and rear surfaces having a longer side and a shorter side; a side surface being a mounting surface and connecting the longer sides of the main and rear surfaces; one or more LED chips supported by the main surface of the substrate; and wirings which are formed on the substrate and make electrical conduction with the LED chips, wherein the substrate includes one or more through holes penetrating from the main surface to the rear surface, wherein the wirings include pads which are formed on the main surface and make electrical conduction with the LED chips, rear surface electrodes which are formed on the rear surface, and through wirings which make electrical conduction between the pads and the rear surface electrodes and are formed on the inner sides of the through holes, wherein three spaced LED chips are arranged along a longitudinal direction of the main surface, and wherein the substrate includes three through holes and the wirings include three through wirings; wherein the substrate includes a pair of lateral sides connecting the main surface and the rear surface in both ends of the substrate in the longitudinal direction and two corner grooves which are interposed between the lateral sides and the side surface, and reach the main surface and the rear surface in a thickness direction of the substrate, and wherein the wirings include two corner groove wirings formed on the inner sides of the two corner grooves.