Patent Publication Number: US-2023162923-A1

Title: Multilayer electronic component

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is the continuation application of U.S. patent application Ser. No. 17/733,068 filed on Apr. 29, 2022, which is the continuation application of U.S. patent application Ser. No. 16/834,346 filed on Mar. 30, 2020, now U.S. Pat. No. 11,393,630 issued on Jul. 19, 2022, which claims the benefit under 35 USC 119(a) of Korean Patent Application No. 10-2019-0110682 filed on Sep. 6, 2019 in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference for all purposes 
    
    
     BACKGROUND 
     1. Field 
     The present disclosure relates to a multilayer electronic component. 
     2. Description of Related Art 
     A multilayer ceramic capacitor (MLCC) is a type of multilayer electronic component, and may be a chip type capacitor mounted on the printed circuit boards of various electronic products such as imaging devices including liquid crystal displays (LCDs), plasma display panels (PDPs), and the like, and computers, smartphones, mobile phones, and the like, serving to charge or discharge electricity therein or therefrom. 
     Such multilayer ceramic capacitors may be used as components of various electronic devices due to their relatively small size, relatively high capacitance, and relative ease of mounting. As various electronic devices such as computers, mobile devices, or the like are miniaturized and increased in terms of output, demand for miniaturization and high capacitance of multilayer ceramic capacitors is increasing. 
     In addition, as recent interest in vehicle electric/electronic components has increased, multilayer ceramic capacitors have also come to require relatively high reliability and strength characteristics to be used in vehicle or infotainment systems. 
     In order to secure high-reliability and high-strength characteristics, a method of changing a conventional external electrode, including an electrode layer, to have a double-layer structure including an electrode layer and a conductive resin layer has been proposed. 
     In the double-layer structure including the electrode layer and the conductive resin layer, a resin composition, including a conductive material, is applied onto the electrode layer to absorb external impacts and to prevent permeation of plating liquid. As a result, reliability may be improved. 
     However, as electric vehicles, autonomous vehicles, and the like, have been developed in the automotive industry, a greater number of multilayer ceramic capacitors are required, and multilayer ceramic capacitors used in automobiles and the like are required to have stricter moisture resistance reliability and bending strength characteristics secured therein. 
     SUMMARY 
     An aspect of the present disclosure is to provide a multilayer electronic component capable of suppressing arc discharge. 
     An aspect of the present disclosure is to provide a multilayer electronic component having improved bending strength characteristics. 
     An aspect of the present disclosure is to provide a multilayer electronic component having improved moisture resistance characteristics. 
     An aspect of the present disclosure is to provide a multilayer electronic component in which electrical connectivity between an electrode layer and a conductive resin layer is improved, to allow for low equivalent series resistance (ESR). 
     However, the objects of the present disclosure are not limited to the above, and more generally include the concepts described below. 
     According to an aspect of the present disclosure, a multilayer electronic component includes a body having dielectric layers, and first internal electrodes and second internal electrodes alternately laminated with respective dielectric layers interposed therebetween, and having first and second surfaces opposing each other in a lamination direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other. A first external electrode includes a first electrode layer connected to the first internal electrodes and a first conductive resin layer disposed on the first electrode layer, and having a first connection portion disposed on the third surface of the body and a first band portion extending from the first connection portion to a portion of each of the first, second, fifth, and sixth surfaces, and a second external electrode includes a second electrode layer connected to the second internal electrodes and a second conductive resin layer disposed on the second electrode layer, and having a second connection portion disposed on the fourth surface of the body and a second band portion extending from the second connection portion to a portion of each of the first, second, fifth, and sixth surfaces. A non-conductive resin layer has a body cover portion disposed in a region of external surfaces of the body in which the first and second electrode layers are not disposed, a first extending portion disposed to extend from the body cover portion between the first electrode layer and the first conductive resin layer of the first band portion, and a second extending portion disposed to extend from the body cover portion between the second electrode layer and the second conductive resin layer of the second band portion. 
     According to another aspect of the present disclosure, a multilayer electronic component includes a body having first internal electrodes and second internal electrodes that are alternately stacked to overlap with each other and have dielectric layers interposed therebetween, and first and second external electrodes respectively connected to the first and second internal electrodes, each including an electrode layer connected to the first internal electrodes or the second internal electrodes, and each including a conductive resin layer disposed on the electrode layer. The first and second external electrodes are disposed on respective opposing external surfaces of the body, and each extend from the respective opposing external surface to an adjacent external surface of the body and a corner therebetween, and a non-conductive resin layer is disposed in a region of the external surfaces of the body in which the electrode layers of the first and second external electrodes are not disposed, and the non-conductive resin layer is disposed between the electrode layer and the conductive resin layer of each of the first and second external electrodes in each of the opposing external surfaces and adjacent external surfaces in which the first and second external electrodes are disposed. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The above and other aspects, features, and advantages of the present disclosure will be more clearly understood from the following detailed description, taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a schematic perspective view of a multilayer electronic component according to an embodiment of the present disclosure; 
         FIG.  2    is a cross-sectional view taken along line I-I′ in  FIG.  1   ; 
         FIG.  3    is a schematic exploded perspective view of a body, in which dielectric layers and internal electrodes are laminated, according to an embodiment of the present disclosure; 
         FIG.  4    is an enlarged view of region P in  FIG.  2   ; 
         FIG.  5    is a schematic perspective view of a multilayer electronic component according to another embodiment of the present disclosure; 
         FIG.  6    is a cross-sectional view taken along line II-II′ in  FIG.  5   ; 
         FIG.  7    illustrates measurements result of arc discharge tests on sample chips (Comparative Example) in which a non-conductive resin layer is not disposed; 
         FIG.  8    illustrates measurement results of arc discharge tests on sample chips (Inventive Example) in which a non-conductive resin layer is disposed, according to an embodiment of the present disclosure; and 
         FIG.  9    is a cross-sectional view taken along line I-I′ in  FIG.  1   , in case of adding plating layers. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, embodiments of the present disclosure will be described with reference to specific embodiments and the accompanying drawings. However, embodiments of the present disclosure may be modified to have various other forms, and the scope of the present disclosure is not limited to the embodiments described below. Further, embodiments of the present disclosure may be provided for a more complete description of the present disclosure to the ordinarily skilled artisan. Therefore, shapes and sizes of the elements in the drawings may be exaggerated for clarity of description, and the elements denoted by the same reference numerals in the drawings may be the same elements. 
     In the drawings, portions not related to the description will be omitted for clarification of the present disclosure, and a thickness may be enlarged to clearly show layers and regions. The same reference numerals will be used to designate the same components. Further, throughout the specification, when an element is referred to as “comprising” or “including” another element, it means that the element may further include other elements as well, without departing from the other elements, unless specifically stated otherwise. 
     In the drawing, an X direction may be defined as a second direction, an L direction, or a longitudinal direction; a Y direction may be defined as a third direction, a W direction, or a width direction; and a Z direction may be defined as a first direction, a stacking direction, a T direction, or a thickness direction. 
     Multilayer Electronic Component 
       FIG.  1    is a schematic perspective view of a multilayer electronic component according to an embodiment. 
       FIG.  2    is a cross-sectional view taken along line I-I′ in  FIG.  1   . 
       FIG.  3    is a schematic exploded perspective view of a body, in which dielectric layers and internal electrodes are laminated, according to an embodiment. 
       FIG.  4    is an enlarged view of region P in  FIG.  2   . 
     Hereinafter, a multilayer electronic component  100  according to an embodiment will be described with reference to  FIGS.  1  to  4   . 
     A multilayer electronic component  100  according to an embodiment may include a body  110  including dielectric layers  111 , and first and second internal electrodes  121  and  122  alternately laminated with respective dielectric layers  111  interposed therebetween, and having first and second surfaces  1  and  2  opposing each other in a lamination direction (a Z direction), third and fourth surfaces  3  and  4  connected to the first and second surfaces  1  and  2  and opposing each other, and fifth and sixth surfaces  5  and  6  connected to the first to fourth surfaces  1 ,  2 ,  3 , and  4  and opposing each other, a first external electrode  131  including a first electrode layer  131   a  connected to the first internal electrode(s)  121  and a first conductive resin layer  131   b  disposed on the first electrode layer  131   a , and having a first connection portion A 1  disposed on the third surface  3  of the body  110  and a first band portion B 1  extending from the first connection portion A 1  to a portion of each of the first, second, fifth, and sixth surfaces  1 ,  2 ,  5 , and  6 , a second external electrode  132  including a second electrode layer  132   a  connected to the second internal electrode(s)  122  and a second conductive resin layer  132   b  disposed on the second electrode layer  132   a , and having a second connection portion A 2  disposed on the fourth surface  4  of the body  110  and a second band portion B 2  extending from the second connection portion A 2  to a portion of each of the first, second, fifth, and sixth surfaces  1 ,  2 ,  5 , and  6 , and a non-conductive resin layer  140  having a body cover portion  143  disposed in a region of external surfaces of the body  110  in which the first and second electrode layers  131   a  and  132   a  are not disposed, a first extending portion  141  disposed to extend from the body cover portion  143  between the first electrode layer  131   a  and the first conductive resin layer  131   b  of the first band portion B 1 , and a second extending portion  142  disposed to extend from the body cover portion  143  between the second electrode layer  132   a  and the second conductive resin layer  132   b  of the second band portion B 2 . 
     In the body  110 , the dielectric layers  111  and the internal electrodes  121  and  122  are alternately laminated. 
     The body  110  is not limited in shape, but may have a hexahedral shape or a shape similar thereto. Due to shrinkage of ceramic powder particles included in the body  110  during sintering, the body  110  may have a substantially hexahedral shape rather than a hexahedral shape having complete straight lines or edges. 
     The body  110  may have the first and second surfaces  1  and  2  opposing each other in a thickness direction (a Z direction), the third and fourth surfaces  3  and  4  connected to the first and second surfaces  1  and  2  and opposing each other in a length direction (an X direction), and the fifth and sixth surfaces  5  and  6  connected to the first and second surfaces  1  and  2  and as well as to the third and fourth surfaces  3  and  4  and opposing each other in a width direction (a Y direction). 
     The plurality of dielectric layers  111 , constituting the body  110 , is in a sintered state and the dielectric layers  111  may be integrated with each other such that boundaries therebetween may not be readily apparent without using a scanning electron microscope (SEM). 
     According to an embodiment, a raw material forming the dielectric layer(s)  111  is not limited as long as sufficient capacitance may be obtained. For example, a barium titanate-based material, a lead composite perovskite-based material, a strontium titanate-based material, or the like, may be used. 
     Various ceramic additives, organic solvents, plasticizers, binders, dispersants, or the like may be added to the powder of barium titanate (BaTiO 3 ), and the like, according to the purpose of the present disclosure, as the material for forming the dielectric layer  111 . 
     The body  110  may have a capacitance forming portion disposed in the body  110  and including the first and second internal electrode layers  121  and  122 , alternately disposed to overlap each other with the dielectric layer(s)  111  interposed therebetween, to form capacitance, and upper and lower protective layers  112  and  113  disposed above and below the capacitance forming portion. 
     The capacitance forming portion may contribute to capacitance formation of a capacitor, and may be formed by repeatedly laminating the plurality of first and second internal electrode layers  121  and  122  with the dielectric layers  111  interposed therebetween. 
     The upper protective layer  112  and the lower protective layer  113  may be formed by laminating a single dielectric layer or two or more dielectric layers on upper and lower surfaces of the capacitance forming portion, respectively, in the vertical direction, and may basically play a role in preventing damage to the internal electrodes due to physical or chemical stress. 
     The upper protective layer  112  and the lower protective layer  113  may not include any internal electrode(s), and may include the same material as the dielectric layer  111 . 
     The plurality of internal electrodes  121  and  122  may be disposed to overlap each other with the dielectric layer(s)  111  interposed therebetween. 
     The internal electrodes  121  and  122  may include first and second internal electrodes  121  and  122  alternately disposed to overlap each other with respective dielectric layers interposed therebetween. 
     The first and second internal electrodes  121  and  122  may be exposed to the third and fourth surfaces  3  and  4 , respectively. 
     Referring to  FIG.  2   , the first internal electrode(s)  121  may be spaced apart from the fourth surface  4  and may be exposed through the third surface  3 , and the second internal electrode(s)  122  may be spaced apart from the third surface  3  and may be exposed through the fourth surface  4 . The first external electrode  131  may be disposed on the third surface  3  of the body  110  to be connected to the first internal electrode(s)  121 , and the second external electrode  132  may be disposed on the fourth surface  4  of the body  110  to be connected to the second internal electrode(s)  122 . 
     For example, the first internal electrode(s)  121  is/are not connected to the second external electrode  132  and is/are connected to the first external electrode  131 , and the second internal electrodes  122  is/are not connected to the first external electrode  131  and is/are connected to the second external electrode  132 . Thus, the first internal electrode(s)  121  is/are formed to be spaced apart from the fourth surface  4  by a predetermined distance, and the second internal electrode(s)  122  is/are formed to be spaced apart from the third surface  3  by a predetermined distance. 
     The first and second internal electrodes  121  and  122  may be electrically isolated from each other by the dielectric layer(s)  111  disposed therebetween. 
     Referring to  FIG.  3   , the body  110  may be formed by alternately laminating dielectric layer(s)  111  on which the first internal electrode  121  is printed and dielectric layer(s)  111  on which the second internal electrode  122  is printed, in a thickness direction (a Z direction) and sintering the alternately laminated dielectric layers  111 . 
     The material forming the first and second internal electrodes  121  and  122  is not limited. For example, the first and second internal electrodes  121  and  122  may be formed using a conductive paste containing a noble metal material such as palladium (Pd), a palladium-silver (Pd—Ag) alloy, or the like, nickel (Ni), and copper (Cu). 
     A method of printing the conductive paste may be a screen-printing method, a gravure printing method, or the like, but is not limited thereto. 
     The external electrodes  131  and  132  are disposed on the body  110  and include electrode layers  131   a  and  132   a  and conductive resin layers  131   b  and  132   b , respectively. 
     The external electrodes  131  and  132  may include first and second external electrodes  131  and  132 , respectively connected to the first and second internal electrodes  121  and  122 . 
     The first external electrode  131  includes a first electrode layer  131   a  and a first conductive resin layer  131   b , and the second external electrode  132  includes a second electrode layer  132   a  and a second conductive resin layer  132   b.    
     When the first external electrode  131  is divided with reference to  FIG.  2    depending on a position in which it is disposed, the first external electrode  131  has a first connection portion A 1 , disposed on the third surface  3  of the body, and a band portion B 1  extending from the first connection portion A 1  to a portion of the first, second, fifth, and sixth surfaces  1 ,  2 ,  5 , and  6 . 
     A region between the first connection portion A 1  and the first band portion B 1  may be defined as a first corner portion C 1 . 
     When the second external electrode  132  is divided depending on a position in which it is disposed, the second external electrode  132  has a second connection portion A 2 , disposed on the fourth surface  4  of the body, and a band portion B 2  extending from the second connection portion A 2  to a portion of the first, second, fifth, and sixth surfaces  1 ,  2 ,  5 , and  6 . 
     A region between the second connection portion A 2  and the second band portion B 2  may be defined as a second corner portion C 2 . 
     The first and second electrode layers  131   a  and  132   a  may be formed using any material as long as it is a material having electrical conductivity such as a metal or the like, and a specific material may be determined in consideration of electrical characteristics, structural stability, and the like. 
     For example, the first and second electrode layers  131   a  and  132   a  may include a conductive metal and glass. 
     A conductive metal, used for the electrode layers  131   a  and  132   a , is not limited as long as it may be electrically connected to the respective internal electrode(s) to form capacitance and may include at least one selected from the group consisting of, for example, copper (Cu), silver (Ag), nickel (Ni), and alloys thereof. 
     The electrode layers  131   a  and  132   a  may be formed by applying a conductive paste, prepared by adding a glass frit, to the conductive metal powder particles and sintering the conductive paste. 
     When the first and second electrode layers  131   a  and  132   a  include a conductive metal and glass, corner portions, at which the connection portions A 1  and A 2  and the band portions B 1  and B 2  meet, may be formed to be thin, or lifting may occur between ends of the band portions B 1  and B 2  and the body  110 . Therefore, since moisture resistance reliability may be problematic, an effect of improving the moisture reliability may be more effective when the first and second electrode layers  131   a  and  132   a  include a conductive metal and glass. 
     The first and second electrode layers  131   a  and  132   a  may be formed by means of atomic layer deposition (ALD), molecular layer deposition (MLD), chemical vapor deposition (CVD) sputtering, or the like. 
     In addition, the first and second electrode layers  131   a  and  132   a  may be formed by transferring a sheet, including a conductive metal, onto the body  110 . 
     The conductive resin layers  131   b  and  132   b  may include a conductive metal and a base resin. 
     The conductive metal, included in the conductive resin layers  131   b  and  132   b , serves to electrically connect the conductive resin layers  131   b  and  132   b  to first plating layers formed thereon. 
     The conductive metal, included in the conductive resin layers  131   b  and  132   b , is not limited as long as it may be electrically connected to the first plating layers and may include at least one selected from the group consisting of, for example, copper (Cu), silver (Ag), nickel (Ni), and alloys thereof. 
     The conductive metal, included in the conductive resin layers  131   b  and  132   b , may include at least one of spherical powder particles and flake powder particles. For example, the conductive metal may include only flake powder particles, or only spherical powder particles, or a mixture of flake powder particles and spherical powder particles. 
     The spherical powder particles may have an incompletely spherical shape and may have, for example, a shape in which a ratio of a length of a major axis to a length of a minor axis (the major axis/the minor axis) that is 1.45 or less. 
     The flake powder particles refer to powder particles, each having a flat and elongated shape, and is not limited to a specific shape and, for example, a ratio of a length of a major axis and a length of a minor axis (the major axis/the minor axis) may be 1.95 or more. 
     The lengths of the major axes and the minor axes of the spherical powder particles and the flake powder particles may be measured from an image obtained by scanning a cross section (an L-T cross section), taken from a central portion of a multilayer electronic component in a width (Y) direction, in X and Z directions with a scanning electron microscope (SEM). 
     The base resin, included in the conductive resin layers  131   b  and  132   b , serves to secure adhesion and to absorb impact. 
     The base resin, included in the conductive resin layers  131   b  and  132   b , is not limited as long as it has adhesion and impact absorption and is mixed with conductive metal powder particles to prepare a paste and may include, for example, an epoxy-based resin. 
     In addition, the conductive resin layer may include a plurality of metal particles, an intermetallic compound, and a base resin. 
     According to the present disclosure, a non-conductive resin layer (e.g.,  140 ) may be disposed to extend between an electrode layer (e.g.,  131   a  and  132   a ) and a conductive resin layer (e.g.,  131   b  and  132   b , respectively), or a plurality of island-shaped adhesive portions may be disposed on a first electrode layer of a first connection portion and a second electrode layer of a second connection portion. Therefore, a contact area between the electrode layer and the conductive resin layer may be reduced. As a result, electrical connectivity between the electrode layer and the conductive resin layer may be deteriorated. 
     However, according to an embodiment, when the conductive resin layer includes a plurality of metal particles, an intermetallic compound, and a base resin, stable electrical connectivity may be secured. 
     The intermetallic compound may serve to connect a plurality of metal particles to improve electrical connectivity, and may serve to surround and connect the plurality of metal particles to each other. 
     In this case, the intermetallic compound may include a metal having a melting point lower than curing temperature of the base resin. 
     For example, since the intermetallic compound includes a metal having a melting point lower than the curing temperature of the base resin, the metal having a melting point lower than the curing temperature of the base resin is melted during drying and curing processes, and form an intermetallic compound with a portion of the metal particles to surround the metal particles. In this case, the intermetallic compound may include, in detail, a metal having a low melting point of 300° C. or less. 
     For example, the intermetallic compound may include tin (Sn) having a melting point of 213 to 220° C. During the drying and curing processes, Sn is molten. The molten Sn wets metal particles having a high melting point such as Ag, Ni, or Cu due to capillarity, and reacts with a portion of Ag, Ni, or Cu metal particles to form an intermetallic compound such as Ag 3 Sn, Ni 3 Sn 4 , Cu 6 Sn 5 , Cu 3 Sn, or the like. Ag, Ni, or Cu, not participating in reaction, remains in the form of metal particles. 
     Accordingly, the plurality of metal particles may include one or more of Ag, Ni, and Cu, and the intermetallic compound may include one or more of Ag 3 Sn, Ni 3 Sn 4 , Cu 6 Sn 5 , and Cu 3 Sn. 
     Referring to  FIG.  9   , plating layers  131   c  and  132   c  may be additionally provided on the conductive resin layers  131   b  and  132   b , respectively, to improve mounting characteristics of the external electrodes  131  and  132 . 
     For example, the plating layers  131   c  and  132   c  may be Ni plating layers or Sn plating layers, or may include Ni plating layers and Sn plating layers, respectively and sequentially formed on the conductive resin layers. Alternatively, the plating layers  131   c  and  132   c  may include a plurality of Ni plating layers and/or a plurality of Sn plating layers. 
     The non-conductive resin layer  140  has a body cover portion  143  disposed in a region of the external surfaces of the body  110  in which the first and second electrode layers  131   a  and  132   a  are not disposed, a first extending portion  141  disposed to extend from the body cover portion  143  between the first electrode layer  131   a  and the first conductive resin layer  131   b  of the first band portion B 1 , and a second extending portion  142  disposed to extend from the body cover portion  143  between the second electrode layer  132   a  and the second conductive resin layer  132   b  of the second band portion B 2 . 
     The non-conductive resin layer  140  serves to prevent stress, generated when a substrate is deformed by thermal and physical impacts while the multilayer electronic component  100  is mounted on the substrate, from propagating to the body  110  and to prevent cracking. 
     In addition, the non-conductive resin layer  140  serves to improve moisture resistance by blocking moisture permeation paths. 
     The base resin, included in the conductive resin layers  131   b  and  132   b , also plays a role in absorbing impacts, but the role of the base resin is limited. 
     In addition, when lengths of the first and second conductive resin layers  131   b  and  132   b  are increased to enhance bending stress, short-circuit may occur between the first and second conductive resin layers  131   b  and  132   b  and arc discharge may occur between the band ends of the first and second resin layers  131   b  and  132   b  under a high voltage. 
     Meanwhile, since the body cover portion  143  has an insulating property, it is disposed in a region of the external surfaces of the body  110  in which the first and second electrode layers  131   a  and  132   a  are not disposed, and thus the body cover portion  143  is disposed in a wider region to be more effective in absorbing impact and suppressing stress propagation. 
     The body cover portion  143  may prevent moisture from permeating into the body  110  through the external surface of the body  100  by sealing fine pores or cracking of the body  110 . 
     In addition, the body cover portion  143  may suppress exposure of the surface of the body  110  to prevent arc discharge from occurring. 
     The first extending portion  141  is disposed to extend from the body cover portion  143  between the first electrode layer  131   a  and the first conductive resin layer  131   b  of the first band part B 1 , serving to suppress stress propagation to the body  110  and to prevent cracking. 
     In addition, the first extending portion  141  serves to suppress lifting between an end of the first electrode layer  131   a , disposed on the first band portion B 1 , and the body  110  to improve moisture resistance reliability. 
     The second extending portion  142  is disposed to extend from the body cover portion  143  between the second electrode layer  132   a  and the second conductive resin layer  132   b  of the second band portion B 2 , serving to suppress stress propagation to the body  110  and to prevent cracking. 
     In addition, the second extending portion  142  serves to improve moisture resistance reliability by suppressing lifting between an end of the second electrode layer  132   a , disposed in the second band portion B 2 , and the body  110 . 
     The non-conductive resin layer  140  may be formed by forming the first and second electrode layers  131   a  and  132   a  on the body  110  including dielectric layers and internal electrodes, forming a non-conductive resin layer  140  on an exposed external surface of the body  110  and on the first and second electrode layers  131   a  and  132   a , and removing the non-conductive resin layer  140  formed on the connection portions A 1  and A 2  of the first and second electrode layers  131   a  and  132   a.    
     A method of removing the non-conductive resin  140  may be, for example, laser processing, mechanical polishing, dry etching, wet etching, shadowing deposition using a tape protective layer, or the like. 
     The non-conductive resin layer  140  may include a base resin. 
     The base resin, included in the non-conductive resin layer  140 , is not limited as long as adhesion and impact absorption are provided thereby, and may be, for example, an epoxy-based resin. 
     The non-conductive resin layer  140  may include a base resin, and may include one or more of silica, alumina, glass, or zirconium dioxide (ZrO 2 ). 
     Silica, alumina, glass, and zirconium dioxide (ZrO 2 ) serve to improve an applying shape of the non-conductive resin layer  140 . In addition, silica, alumina, glass, and zirconium dioxide (ZrO 2 ) may also serve to improve thermal resistance. 
       FIG.  7    illustrates measurement results obtained by preparing a total of ten sample chips (Comparative Examples, #1 to #10), in which the non-conductive resin layer  140  is not disposed, and repeatedly measuring arc discharge occurrence voltages for the respective sample chips (Comparative Examples, #1 to #10) five times. 
       FIG.  8    illustrates measurement results obtained by preparing a total of ten sample chips (Inventive Examples, #11 to #20), in which the non-conductive resin layer  140  according to an embodiment is disposed, and repeatedly measuring arc discharge occurrence voltages for the respective sample chips (Inventive Examples, #11 to #20) five times. 
     Referring to  FIG.  7   , there were four cases in which arc discharge occurred at a voltage of 2 kV or less, and an average value of the arc discharge occurrence voltages was about 2.5 kV. 
     Meanwhile, referring to  FIG.  8   , in the case of Inventive Examples, there was no case in which arc discharge occurred up to a voltage of 2.5 kV, in a total of 50 experiments, and an average value of the arc discharge occurrence voltages was 3.0 kV or more. As a result, Inventive Examples were excellent in providing an arc discharge suppression effect. 
     The first extending portion  141  may be disposed to cover the first corner portion C 1  of the first electrode layer  131   a , and the second extending portion  142  may be disposed to cover the second corner portion C 2  of the second electrode layer  132   a.    
     When the electrode layers  131   a  and  132   a  include a conductive metal and glass, the electrode layers  131   a  and  132   a  of the corner portions C 1  and C 2  (e.g., in regions between the connection portions A 1  and A 2  and the band portions B 1  and B 2 ) may be formed to be thin. Therefore, the corner portions C 1  and C 2  may act as main moisture permeation paths to deteriorate moisture resistance reliability. 
     In this regard, the extending portions  141  and  142  may be disposed to cover the corner portions C 1  and C 2  of the electrode layers  131   a  and  132   a , and thus, may block the moisture permeation paths to improve the moisture resistance reliability. 
     Moreover, the first extending portion  141  may be disposed to extends to a portion between the first electrode layer  131   a  and the first conductive resin layer  131   b  of the first connection portion A 1 , and the second extending portion  142  may be disposed to extend to a portion between the second electrode layer  132   a  and the second conductive resin layer  132   b  of the second connection portion A 2 , and thus, may reliably block the moisture permeation paths to further improve the moisture resistance reliability. 
     Lengths of the first band portion B 1  of the first conductive resin layer  131   b  and of the second band portion B 2  of the second conductive resin layer  132   b  may each be 10 to 20% of a length of the body  110 . 
     Referring to  FIGS.  2  and  4   , a length of the body may refer to a distance between a third surface and a fourth surface of the body, a length of the first band portion B 1  of the first conductive resin layer  131   b  may be a distance B 1   b  from the third surface of the body to an end of the first conductive resin layer  131   b , and a length of the second band portion B 2  of the second conductive resin layer  132   b  may be a distance from the fourth surface of the body to an end of the conductive resin layer  131   b.    
     When the non-conductive resin layer  140  is not disposed, lengths of the first band portion B 1  of the first conductive resin layer  131   b  and of the second band portion B 2  of the second conductive resin layer  132   b  may each be maintained to be 20 to 30% of the length of the body  110  to secure the bending strength. 
     Meanwhile, when the non-conductive resin layer  140  is disposed according to an embodiment, sufficient bending strength may be secured even if the first band portion B 1  of the first conductive resin layer  131   b  and the second band portion B 2  of the second conductive resin layer  132   b  are each 10 to 20% of the length of the body  110 . Therefore, the arc discharge suppressing effect may be further improved. 
     In addition, to further improve the bending strength, the distance B 1   b  from the third surface of the body  110  to the end of the first conductive resin layer  131   b  may be greater than a distance B 1   a  from the third surface of the body  110  to an end of the first electrode layer  131   a . Similarly, a distance from the fourth side of the body  110  to an end of the second conductive resin layer  132   b  may be greater than a distance from the fourth side of the body  110  to an end of the second electrode layer  132   a.    
       FIG.  5    is a schematic perspective view of a multilayer electronic component according to another embodiment. 
       FIG.  6    is a cross-sectional view taken along line II-II′ in  FIG.  5   . 
     Hereinafter, a multilayer electronic component  100 ′ according to the other embodiment will be described with reference to  FIGS.  5  and  6   . However, descriptions common to the laminated electronic component  100  according to an embodiment will be omitted to avoid duplicate descriptions. 
     The multilayer electronic component  100 ′ according to another embodiment has a plurality of island-shaped adhesive portions  151  and  152  disposed on a first connecting portion A 1  of a first electrode layer  131   a  and on a second connecting portion A 2  of a second electrode layer  132   a.    
     Referring to  FIG.  6   , the plurality of island-shaped adhesive portions  151  and  152  may be disposed between the first electrode layer  131   a  and the first conductive resin layer  131   b  of the first connection portion A 1  and between the second electrode layer  132   a  and the second conductive resin layer  132   b  of the second connection portion A 2 . 
     The plurality of island-shaped adhesive portions  151  and  152  serves to improve adhesion between the electrode layer and the conductive resin layer. As the adhesion between the electrode layer and the conductive resin layer is improved, a defect such as electrode lifting, or the like, may be prevented. 
     Each of the plurality of island-shaped adhesive portions  151  and  152  may include abase resin, and may correspond to an isolated segment of adhesive portion spaced apart from other isolated segments of adhesive portion on the connection portions A 1  and A 2 . 
     The base resin, included in each of the plurality of island-shaped adhesive portions  151  and  152 , is not limited as long as adhesion and impact absorption are provided thereby, and may be, for example, an epoxy-based resin. 
     Each of the plurality of island-shaped adhesive portions  151  and  152  may include a base resin, and may include one or more of silica, alumina, glass, or zirconium dioxide (ZrO 2 ). Silica, alumina, glass, and zirconium dioxide (ZrO 2 ) may serve to improve an applying shape of each of the plurality of island-shaped adhesive portions  151  and  152  and to improve thermal resistance. 
     The plurality of island-shaped adhesive portions  151  and  152  may be formed by forming the first and second electrode layers  131   a  and  132   a  on the body  110  including dielectric layers and internal electrodes, forming a non-conductive resin layer  140  on an exposed external surface of the body  110  and the first and second electrode layers  131   a  and  132   a , and removing only a portion of the non-conductive resin layer  140  formed on the connection portions A 1  and A 2  of the first and second electrode layers  131   a  and  132   a.    
     Therefore, the plurality of island-shaped adhesive portions  151  and  152  may be formed of the same material as the non-conductive resin layer  140 . 
     An area of the plurality of island-shaped adhesive portions  151  may be 20 to 40% of an area of the first connection portion A 1  of the first electrode layer  131   a , or an area of the plurality of island-shaped adhesive portions  152  may be 20 to 40% of an area of the second connection portion A 2  of the second electrode layer  132   a.    
     Table 1 shows ESR and adhesion evaluation results depending on a ratio of an area S 2  of adhesive portions to an area S 1  of a connection portion of an electrode layer (S 2 /S 1 ). 
     The adhesion was evaluated by measuring energy needed to remove a conductive resin layer from the electrode layer using a bond tester. As compared with a case in which the area S 2  of the adhesive portion is 0, a case in which an adhesive force improvement effect was less than 5% was indicated by Δ, a case in which the effect was 5% or more to 20% or less was indicated by ∘, and a case in which the effect was 20% or more was indicated by ⊚. 
     ESR evaluation was performed by measuring ESR of 100 samples at a magnetic resonance frequency using an LCR meter. A case in which a coefficient of variation (CV) was more than or equal to 10% was indicated by Δ, a case in which the CV was 3% or more to less than 10% was indicated by ∘, and a case in which the CV was less than 3% was indicated by ⊚. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 1 
               
               
                   
                   
               
               
                   
                 No. 
                 S2/S1 
                 ESR 
                 Adhesion 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 1 
                 0.1 
                 ⊚ 
                 Δ 
               
               
                   
                 2 
                 0.2 
                 ◯ 
                 ◯ 
               
               
                   
                 3 
                 0.3 
                 ◯ 
                 ◯ 
               
               
                   
                 4 
                 0.4 
                 ◯ 
                 ◯ 
               
               
                   
                 5 
                 0.5 
                 Δ 
                 ⊚ 
               
               
                   
                   
               
            
           
         
       
     
     In the case of Test No. 1 in which the ratio of an area S 2  of an adhesive portion to an area S 1  of a connection portion of an electrode layer (S 2 /S 1 ) is 0.1, ESR characteristics are excellent but the adhesion is poor. 
     In the case of Test No. 5 in which the ratio of an area S 2  of an adhesive portion to an area S 1  of a connection portion of an electrode layer (S 2 /S 1 ) is 0.5, the adhesion is excellent but ESR characteristics are poor. 
     Therefore, the area of each of the plurality of island-shaped adhesive portions  151  and  152  may be set to 20 to 40% of the area of the first connection portion A 1  of the first electrode layer  131   a  or the area of the second connection portion A 2  of the second electrode layer  132   a , securing both excellent adhesion and excellent ESR characteristics. 
     As described above, a multilayer electronic component may include a non-conductive resin layer including a body cover portion disposed in a region of an external surface of a body in which an electrode layer is not disposed, and an extending portion extending from the body cover portion between an electrode layer and a conductive resin layer of external electrodes, and thus, may suppress arc discharge. 
     In addition, the non-conductive resin layer may be provided to improve bending strength characteristics. 
     While embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and variations could be made without departing from the scope of the present disclosure as defined by the appended claims.