# US 10,873,016 B2 · Light-emitting device and method for manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,016 B2 - Document ID: US10873016B2 - Status: Granted - Kind: B2 - Application number: 16/306,508 - Filed: 2017-05-02 - Published: 2019-05-23 - Granted: 2020-12-22 - Earliest claimed: 2016-05-31 - Assignees: Dexerials Corporation - Applicants: Dexerials Corporation - Inventors: Hidetsugu Namiki; Keiji Honjo; Yasuyuki Higuchi - Web page: https://patentgrep.com/patent/US10873016B2 ## CPC - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10W 90/00: Package configurations - H10H 20/0364: {of interconnections} - H10H 20/853: characterised by their shape - H10H 20/854: characterised by their material, e.g. epoxy or silicone resins - H10H 20/882: {Scattering means (H10H20/82 takes precedence)} - H10W 72/073: {of die-attach connectors} - H10W 74/15: on active surfaces of flip-chip devices, e.g. underfills - H10W 90/724: {between a chip and a stacked insulating package substrate, interposer or RDL} - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A light-emitting device and a method for manufacturing the same capable of suppressing connection defects of light-emitting elements and improving electrical connectivity. A substrate includes a first mounting region for mounting a first light-emitting element, a second mounting region for mounting a second light-emitting element, a first electrode connected to one electrode of the first light-emitting element and one electrode of the second light-emitting element, a second electrode formed in the first mounting region and connected to the other electrode of the first light-emitting element, and a third electrode formed in the second mounting region and connected to the other electrode of the second light-emitting element. In the first electrode, a groove is formed between the first mounting region and the second mounting region. ## Claims ### Claim 1 A light-emitting device comprising: a first light-emitting element and a second light-emitting element each having a pair of electrodes on one surface; a substrate having a first mounting region on which the first light-emitting element is mounted, a second mounting region on which the second light-emitting element is mounted, a first electrode having a groove formed between the first mounting region and the second mounting region and connected to one electrode of the first light-emitting element and one electrode of the second light-emitting element, a second electrode formed in the first mounting region and connected to the other electrode of the first light-emitting element, and a third electrode formed in the second mounting region and connected to the other electrode of the second light-emitting element; a first anisotropic conductive film connecting the first light-emitting element to the first electrode and the second electrode; and a second anisotropic conductive film connecting the second light-emitting element to the first electrode and the third electrode. ### Claim 2 (depends on 1) The light-emitting device according to claim 1, wherein the first anisotropic conductive film contains light-reflective electrically insulating particles and is filled in at least a portion of the groove formed in the first electrode. ### Claim 3 (depends on 2) The light-emitting device according to claim 2, wherein the first mounting region and the second mounting region are rectangular regions, and wherein the groove formed in the first electrode is longer than a side of the first mounting region adjacent to the second mounting region. ### Claim 4 (depends on 2) The light-emitting device according to claim 2, wherein the first light-emitting element and the second light-emitting element have different heights. ### Claim 5 (depends on 1) The light-emitting device according to claim 1, wherein the first mounting region and the second mounting region are rectangular regions, and wherein the groove formed in the first electrode is longer than a side of the first mounting region adjacent to the second mounting region. ### Claim 6 (depends on 5) The light-emitting device according to claim 5, wherein the first light-emitting element and the second light-emitting element have different heights. ### Claim 7 (depends on 1) The light-emitting device according to claim 1, wherein the first light-emitting element and the second light-emitting element have different heights. ### Claim 8 A method for manufacturing a light-emitting device comprising: a preparing step of preparing a first light-emitting element and a second light-emitting element each having a pair of electrodes on one surface, and a substrate having a first mounting region on which the first light-emitting element is to be mounted, a second mounting region on which the second light-emitting element is to be mounted, a first electrode having a groove formed between the first mounting region and the second mounting region, the first electrode to be connected to one electrode of the first light-emitting element and to one electrode of the second light-emitting element, a second electrode formed in the first mounting region, the second electrode to be connected to the other electrode of the first light-emitting element, and a third electrode formed in the second mounting region, the third electrode to be connected to the other electrode of the second light-emitting element; a first mounting step of mounting the first light-emitting element onto the first mounting region using a first anisotropic conductive paste; and a second mounting step of mounting the second light-emitting element onto the second mounting region using a second anisotropic conductive paste. ### Claim 9 (depends on 8) The method for manufacturing a light-emitting device according to claim 8, wherein the first anisotropic conductive film contains light-reflective electrically insulating particles, and wherein the first mounting step includes filling the first anisotropic conductive paste into at least a portion of the groove formed in the first electrode. ### Claim 10 (depends on 9) The method for manufacturing a light-emitting device according to claim 9, wherein the first mounting region and the second mounting region are rectangular regions, and wherein the groove formed in the first electrode is longer than a side of the first mounting region adjacent to the second mounting region. ### Claim 11 (depends on 9) The method for manufacturing a light-emitting device according to claim 9, wherein the first light-emitting element and the second light-emitting element have different heights. ### Claim 12 (depends on 8) The method for manufacturing a light-emitting device according to claim 8, wherein the first mounting region and the second mounting region are rectangular regions, and wherein the groove formed in the first electrode is longer than a side of the first mounting region adjacent to the second mounting region. ### Claim 13 (depends on 12) The method for manufacturing a light-emitting device according to claim 12, wherein the first light-emitting element and the second light-emitting element have different heights. ### Claim 14 (depends on 8) The method for manufacturing a light-emitting device according to claim 8, wherein the first light-emitting element and the second light-emitting element have different heights.