# US 11,309,467 B2 · Method for manufacturing light emitting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,467 B2 - Document ID: US11309467B2 - Status: Granted - Kind: B2 - Application number: 16/940,392 - Filed: 2020-07-28 - Published: 2020-11-12 - Granted: 2022-04-19 - Earliest claimed: 2016-11-01 - Assignees: Nichia Corporation - Applicants: Nichia Corporation - Inventors: Kenji Ozeki; Shimpei Maeda - Web page: https://patentgrep.com/patent/US11309467B2 ## CPC - H10H 20/856: Reflecting means - H10H 20/8515: {not being in contact with the bodies} - H10H 20/853: characterised by their shape - H10H 20/854: characterised by their material, e.g. epoxy or silicone resins - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10W 90/00: Package configurations - H10H 20/01: Manufacture or treatment - H10H 20/0361: {of wavelength conversion means} - H10H 20/0362: {of encapsulations} - H10H 20/0363: {of optical field-shaping means} - H10H 20/0364: {of interconnections} - 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 method for manufacturing a light emitting device includes preparing a light transmissive member block including a first light transmissive member block having a plate like shape and including a resin containing at least one phosphor and a second light transmissive member block including a material harder than a material of the first light transmissive member block. Grooves are formed on an upper face of the second light transmissive member block. The light transmissive member block is divided at the grooves to obtain a plurality of light transmissive members each having a first light transmissive member and a second light transmissive member. A lower face of the first light transmissive member and an upper face of a light emitting element are bonded together such that a lower face perimeter of the first light transmissive member is located outside of an upper face perimeter of the light emitting element. ## Claims ### Claim 1 A method for manufacturing a light emitting device, the method comprising: preparing a light transmissive member block having a plate like shape and comprising a first light transmissive member block and a second light transmissive member block, the first light transmissive member block having a plate like shape and comprising a resin containing at least one phosphor, the second light transmissive member block comprising a material harder than a material of the first light transmissive member block, an upper face of the first light transmissive member block being bonded to a lower face of the second light transmissive member block; forming grooves on an upper face of the second light transmissive member block of the light transmissive member block; dividing the light transmissive member block at the grooves to obtain a plurality of light transmissive members each having a first light transmissive member and a second light transmissive member; and bonding a lower face of the first light transmissive member and an upper face of a light emitting element together such that a lower face perimeter of the first light transmissive member is located outside of an upper face perimeter of the light emitting element, wherein the grooves each have an oblique part spreading out from an upper face side of the second light transmissive member to a lateral face of the second light transmissive member at a height above a lower face side of the second light transmissive member. ### Claim 2 (depends on 1) The method according to claim 1, wherein the second light transmissive member is formed with a glass material. ### Claim 3 (depends on 2) The method according to claim 2, wherein the glass material includes borosilicate glass or quartz glass. ### Claim 4 (depends on 1) The method according to claim 1, further comprising: mounting the light emitting element on a mounting base. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: disposing a reflective member that covers a lateral face of the second light transmissive member, a lateral face of the first light transmissive member, and a lateral face of the light emitting element. ### Claim 6 (depends on 1) The method according to claim 1, wherein the first light transmissive member includes a silicone resin. ### Claim 7 (depends on 1) The method according to claim 1, wherein the first light transmissive member is bonded to the light emitting element via a bonding material. ### Claim 8 (depends on 7) The method according to claim 7, wherein the bonding material covers a lateral face of the light emitting element. ### Claim 9 (depends on 1) The method according to claim 1, wherein the phosphor is localized on the lower face of the first light transmissive member. ### Claim 10 (depends on 1) The method according to claim 1, wherein an upper face of the second light transmissive member has an area smaller than an area of the upper face of the light emitting element. ### Claim 11 (depends on 1) The method according to claim 1, wherein in forming the grooves, the grooves do not reach the first light transmissive member block. ### Claim 12 (depends on 1) The method according to claim 1, wherein the oblique part is formed as a curved line when viewed in in cross section. ### Claim 13 (depends on 1) The method according to claim 1, wherein the oblique part is formed as a straight line when viewed in in cross section. ### Claim 14 (depends on 1) The method according to claim 1, wherein the lateral face of the second light transmissive member extends perpendicularly from the lower face side of the second light transmissive member.