# US 9,041,016 B2 · LED module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,041,016 B2 - Document ID: US9041016B2 - Status: Granted - Kind: B2 - Application number: 13/369,571 - Filed: 2012-02-09 - Published: 2012-08-16 - Granted: 2015-05-26 - Earliest claimed: 2011-02-10 - Assignees: Rohm Co., Ltd. - Applicants: Masahiko Kobayakawa; Takashi Moriguchi - Inventors: Masahiko Kobayakawa; Takashi Moriguchi - Web page: https://patentgrep.com/patent/US9041016B2 ## CPC - H10W 90/00: Package configurations - H10H 20/8506: {Containers} - H10H 20/853: characterised by their shape - H10H 20/856: Reflecting means - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10W 90/754: {between a chip and a stacked insulating package substrate, interposer or RDL} - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS ## Abstract An LED module includes a substrate, one or more LED chips supported by a main surface of the substrate, and wirings. The substrate has one or more through holes penetrating from the main surface to a rear surface. The wirings are formed on the substrate and make electrical conduction with the LED chips. 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. ## Claims ### 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 and being perpendicular to said main surface and said rear surface; one or more LED chips supported by the main surface of the substrate; a light transmitting resin formed on the main surface of the substrate, the light transmitting resin having a surface flush with the side 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, wherein the substrate includes two through holes and the wirings include two through wirings, wherein the substrate has 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. ### Claim 2 (depends on 1) The LED module of claim 1, wherein the wirings expose the entirety of the side surface of the substrate. ### Claim 3 (depends on 1) The LED module of claim 1, wherein the two through wirings deviate from the LED chips making electrical conduction with the two through wirings in the longitudinal direction and overlap with the LED chips in a transverse direction of the main surface. ### Claim 4 (depends on 1) The LED module of claim 1, wherein the rear surface electrodes respectively include two individual electrodes making electrical conduction with the through wirings. ### Claim 5 (depends on 4) The LED module of claim 4, wherein the two through holes are disposed in a portion in the substrate opposite the side surface in the transverse direction. ### Claim 6 (depends on 1) The LED module of claim 1, wherein one of the two corner groove wirings makes electrical conduction with a plurality of LED chips and the rear surface electrodes include an end common electrode connected to the corner groove wiring. ### Claim 7 (depends on 6) The LED module of claim 6, wherein the other of the two corner groove wirings makes electrical conduction with one of the plurality of LED chips and the rear surface electrodes include an end individual electrode connected to the corner groove wiring. ### Claim 8 (depends on 1) The LED module of claim 1, wherein the corner grooves have a quadrant-circular section. ### Claim 9 (depends on 6) The LED module of claim 6, wherein the wirings include a main surface interconnection wiring which is placed near the side surface in the transverse direction with respect to the LED chips, the main surface interconnection wiring extending in the longitudinal direction and connected to the corner groove wiring making electrical conduction with the end common electrode, a branch-like wiring extending from the main surface interconnection wiring between two LED chips, and a wire connecting the two LED chips and the branch-like wiring. ### Claim 10 (depends on 4) The LED module of claim 4, further comprising an insulating film which is provided near the rear surface and covers at least a portion of the individual electrodes and the through holes. ### Claim 11 (depends on 1) The LED module of claim 1, wherein the light transmitting resin covers the three LED chips. ### Claim 12 (depends on 11) The LED module of claim 11, wherein the light transmitting resin has a trapezoidal section perpendicular to the transverse direction. ### Claim 13 (depends on 12) The LED module of claim 12, wherein the light transmitting resin has a rectangular section perpendicular to the longitudinal direction.