# US 12,119,159 B2 · Method for manufacturing a passive electronic component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,119,159 B2 - Document ID: US12119159B2 - Status: Granted - Kind: B2 - Application number: 17/148,016 - Filed: 2021-01-13 - Published: 2021-05-06 - Granted: 2024-10-15 - Earliest claimed: 2016-08-31 - Assignees: Taiyo Yuden Co., Ltd. - Applicants: Taiyo Yuden Co., Ltd. - Inventors: Ryuichi Kondo; Satoshi Tokunaga; Yukihiro Saida - Web page: https://patentgrep.com/patent/US12119159B2 ## CPC - H01F 27/2804: {Printed windings} - H01F 17/0013: {with stacked layers} - H01F 27/29: Terminals; Tapping arrangements {for signal inductances} - H01F 27/292: {Surface mounted devices} - H01F 27/323: {Insulation between winding turns, between winding layers} - H01F 41/00: Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties - H01F 41/041: {Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00)} - H01F 41/122: {Insulating between turns or between winding layers} - H01F 27/2809: {on stacked layers} - H01G 4/30: Stacked capacitors (H01G4/33 takes precedence) - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10) ## Abstract There is provided a passive electronic component that achieves proper recognition of a marker portion thereof that indicates a winding start position and a winding direction of a coil conductor as well as a posture and an orientation of the component. The passive electronic component is a laminated type electronic component and has an insulator portion, a terminal electrode electrically connected to a conductor portion provided inside the insulator portion and formed on a surface of the insulator portion, and a marker portion for indicating a winding start position and a winding direction of a conductor or a posture and an orientation of the component. The marker portion is disposed in a recessed portion on the surface of the insulator portion. ## Claims ### Claim 1 A method for manufacturing a passive electronic component, the passive electronic component including an insulator portion, a conductor portion provided in the insulator portion, a terminal electrode electrically connected to the conductor portion and disposed on at least one of surfaces of the insulator portion, and at least one marker portion provided in at least one recessed portion of at least one of the surfaces of the insulator portion, the method comprising the steps of: stacking together a plurality of lamination sheets each containing a resin; disposing at least one marker portion on an uppermost lamination sheet and among the plurality of lamination sheets; press-bonding the plurality of lamination sheets stacked together, to obtain a laminate; and dicing the laminate into parts of a desired size and heating the parts, wherein the step to obtain the laminate includes pressing in the at least one marker portion disposed on the lamination sheets in a lamination direction of the plurality of lamination sheets, such that an upper surface of the at least one marker portion becomes concave from an upper surface of the uppermost lamination sheet. ### Claim 2 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein a material of a marker in the at least one marker portion is glass or an organic resin, and wherein the step of heating includes allowing thermal contraction of the marker. ### Claim 3 (depends on 2) The method for manufacturing a passive electronic component according to claim 2, wherein the material of the marker in the at least one marker portion is an organic resin, and wherein the organic resin has a larger coefficient of thermal contraction than the resin. ### Claim 4 (depends on 2) The method for manufacturing a passive electronic component according to claim 2, wherein the material of the marker in the at least one marker portion is glass. ### Claim 5 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion provided in the at least one recessed portion has such a depth as not to affect electrical characteristics of the conductor portion. ### Claim 6 (depends on 5) The method for manufacturing a passive electronic component according to claim 5, wherein the depth is smaller than 50% of a distance between the associated surface of the insulator portion and a portion of the conductor portion closest to the associated surface of the insulator portion. ### Claim 7 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein an area of the at least one marker portion provided in the at least one recessed portion is equal to or smaller than 40% of a surface area of one of the surfaces of the insulator portion having the at least one marker portion provided in the at least one recessed portion. ### Claim 8 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion provided in the at least one recessed portion is positioned so as not to contact with the terminal electrode. ### Claim 9 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion provided in the at least one recessed portion is outside a quadrangle formed by connecting midpoints of sides of the insulator portion. ### Claim 10 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion provided in the at least one recessed portion is elongated in a longitudinal direction of the insulator portion. ### Claim 11 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion provided in the at least one recessed portion has an asymmetrical shape. ### Claim 12 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion comprises a plurality of marker portions positioned in a plurality of recessed portions, and wherein a shape defined by arrangement of the plurality of marker portions is asymmetrical. ### Claim 13 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion represents at least one selected from the group consisting of a character and a reading code. ### Claim 14 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the at least one marker portion comprises at least two marker portions positioned in at least two recessed portions, and wherein the at least two marker portions are provided on two opposed surfaces of the insulator portion, respectively. ### Claim 15 (depends on 14) The method for manufacturing a passive electronic component according to claim 14, wherein positions of the at least two marker portions positioned in the at least two recessed portions are asymmetrical to each other. ### Claim 16 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the passive electronic component is a coil component, and wherein in a projective view from the surface having the at least one marker portion provided in the at least one recessed portion, the at least one marker portion is positioned so as not to overlap the conductor portion. ### Claim 17 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the passive electronic component is a coil component, and wherein the conductor portion includes a via portion connecting between layers of a conductor in the conductor portion, and in a projective view from the surface having the at least one marker portion provided in the at least one recessed portion, the at least one marker portion is positioned so as not to overlap the via portion. ### Claim 18 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the passive electronic component is a coil component, and wherein a position of the at least one marker portion provided in the at least one recessed portion, which position is within the associated surface of the insulator portion, indicates a winding start position and a winding direction of a conductor of the coil component. ### Claim 19 (depends on 1) The method for manufacturing a passive electronic component according to claim 1, wherein the passive electronic component is a coil component, and wherein a shape of the at least one marker portion provided in the at least one recessed portion indicates a winding start position and a winding direction of a conductor of the coil component. ### Claim 20 A method for manufacturing a passive electronic component, the passive electronic component including an insulator portion, a conductor portion provided in the insulator portion, a terminal electrode electrically connected to the conductor portion and disposed on at least one of surfaces of the insulator portion, and at least one marker portion provided in at least one recessed portion of at least one of the surfaces of the insulator portion, the method comprising the steps of: stacking together a plurality of lamination sheets each containing a resin; disposing at least one marker portion on a lowermost lamination sheet among the plurality of lamination sheets; press-bonding the plurality of lamination sheets stacked together, to obtain a laminate; and dicing the laminate into parts of a desired size and heating the parts, wherein the step to obtain the laminate includes pressing in the at least one marker portion disposed on the lamination sheets in a lamination direction of the plurality of lamination sheets, such that a lower surface of the at least one marker portion becomes concave from a lower surface of the lowermost lamination sheet.