# US 12,112,879 B2 · Coil component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,879 B2 - Document ID: US12112879B2 - Status: Granted - Kind: B2 - Application number: 17/116,094 - Filed: 2020-12-09 - Published: 2022-03-24 - Granted: 2024-10-08 - Earliest claimed: 2020-09-22 - Assignees: Samsung Electro-Mechanics Co., Ltd. - Applicants: Samsung Electro-Mechanics Co., Ltd. - Inventors: Chan Yoon; Dong Hwan Lee; Dong Jin Lee; Sang Soo Park - Web page: https://patentgrep.com/patent/US12112879B2 ## CPC - H01F 27/2804: {Printed windings} - H01F 27/2852: {Construction of conductive connections, of leads} - H01F 27/29: Terminals; Tapping arrangements {for signal inductances} - H01F 27/292: {Surface mounted devices} - H01F 41/041: {Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00)} - H01F 27/2809: {on stacked layers} - H01F 2017/048: {with encapsulating core, e.g. made of resin and magnetic powder} - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract A coil component includes a body, a coil portion disposed in the body, and first and second external electrodes disposed on the body to be spaced apart from each other, wherein A/C≥2.4 and B/C≥1.6 are satisfied, where a length, a width, and a thickness of the coil component are defined as ‘A’, ‘B’, and ‘C’, respectively, and a ratio of a thickness to a width of at least one turn of the coil portion is 1 or less, based on a cross-section of the coil component. ## Claims ### Claim 1 A coil component, comprising a body, a coil portion disposed in the body, and first and second external electrodes disposed on the body to be spaced apart from each other, wherein 2.4≥A/C≥6.4 and 1.6≥B/C≥5.0 are satisfied, where a length, a width, and a thickness of the coil component are defined as ‘A’, ‘B’, and ‘C’, respectively, the thickness (C) of the coil component being defined as a distance from a lowermost surface of the first and second external electrodes to an upper surface of the body, and a ratio of a thickness to a width of at least one turn of the coil portion is 1 or less, based on a cross-section of the coil component. ### Claim 2 (depends on 1) The coil component of claim 1, wherein the length (A) of the coil component is 1.2 mm or more and 3.2 mm or less. ### Claim 3 (depends on 1) The coil component of claim 1, wherein the width (B) of the coil component is 0.8 mm or more and 2.5 mm or less. ### Claim 4 (depends on 1) The coil component of claim 1, wherein the thickness (C) of the coil component is 0.5 mm. ### Claim 5 (depends on 1) The coil component of claim 1, further comprising a coating layer disposed on the coil portion and covering a surface of each turn of the coil portion. ### Claim 6 (depends on 5) The coil component of claim 5, wherein coating layers in adjacent turns of the coil portion are in contact with each other, respectively. ### Claim 7 (depends on 5) The coil component of claim 5, wherein the coil portion is formed by winding a metal wire comprising a conductive wire portion and the coating layer coating a surface of the conductive wire portion. ### Claim 8 (depends on 5) The coil component of claim 5, wherein coating layers in all adjacent turns of the coil portion stacked in a thickness direction of the coil component are in contact with each other, respectively. ### Claim 9 (depends on 1) The coil component of claim 1, further comprising a support substrate disposed in the body to support the coil portion, wherein the coil portion comprises: first and second coil patterns disposed on a first surface and a second surface of the support substrate, opposing each other, first and second lead-out patterns extending from the first and second coil patterns, respectively, and exposed to surfaces of the body, and a via passing through the support substrate and connecting innermost ends of the first and second coil patterns to each other. ### Claim 10 (depends on 9) The coil component of claim 9, further comprising an insulating film disposed between each of the coil portion and the body and between the support substrate and the body. ### Claim 11 (depends on 1) The coil component of claim 1, wherein the body has a lower surface, and a first end surface and a second end surface respectively connected to the lower surface and opposing each other in a length direction, wherein the first external electrode is disposed on the first end surface of the body, and extends to be disposed on the lower surface of the body, and the second external electrode is disposed on the second end surface of the body, and extends to be disposed on the lower surface of the body. ### Claim 12 (depends on 11) The coil component of claim 11, wherein the first and second external electrodes comprise first electrode layers contacting the body and second electrode layers disposed on the first electrode layers, respectively. ### Claim 13 (depends on 1) The coil component of claim 1, wherein the body includes a first end surface and a second end surface facing each other in a length direction, a first side surface and a second side surface facing each other in a width direction, and an upper surface and a lower surface facing each other in a thickness direction, and the first and second end surfaces and the first and second side surfaces correspond to wall surfaces of the body connecting the upper and lower surfaces. ### Claim 14 A coil component, comprising: a body including a first end surface and a second end surface facing each other in a length direction, a first side surface and a second side surface facing each other in a width direction, and an upper surface and a lower surface facing each other in a thickness direction; a coil portion disposed in the body; and first and second external electrodes disposed on the first and second end surfaces of the body, respectively, and connected to the coil portion in the length direction, wherein 2.4≥A/C≥6.4 and 1.6≥B/C≥5.0 are satisfied, where ‘A’ is a length of the coil component in the length direction, ‘B’ is a width of the coil component in the width direction, and ‘C’ is a thickness of the coil component in the thickness direction, the thickness (C) of the coil component being defined as a distance from a lowermost surface of the first and second external electrodes to the upper surface of the body, and a ratio of a thickness to a width of one turn of the coil portion is 1 or less, the thickness of the one turn being defined in the thickness direction of the body. ### Claim 15 (depends on 14) The coil component of claim 14, wherein the length (A) of the coil component is 1.2 mm or more and 3.2 mm or less. ### Claim 16 (depends on 14) The coil component of claim 14, wherein the width (B) of the coil component is 0.8 mm or more and 2.5 mm or less. ### Claim 17 (depends on 14) The coil component of claim 14, wherein the thickness (C) of the coil component is 0.5 mm. ### Claim 18 (depends on 14) The coil component of claim 14, wherein each turn of the coil portion includes a rectangular cross-sectional shape with corners each having a substantially right angle. ### Claim 19 (depends on 14) The coil component of claim 14, wherein each turn of the coil portion includes a rectangular cross-sectional shape with rounded corners. ### Claim 20 (depends on 14) The coil component of claim 14, wherein each turn of the coil portion has two side surfaces that are substantially flat.