Patent Publication Number: US-2023156965-A1

Title: Heat-dissipating structure and electronic device comprising the heat-dissipating structure

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Application No. PCT/KR2021/009379 designating the United States, filed on Jul. 21, 2021, in the Korean Intellectual Property Receiving Office and claiming priority to Korean Patent Application No. 10-2020-0090629, filed on Jul. 21, 2020, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     Field 
     The disclosure relates to a heat-dissipating structure and an electronic device including the heat-dissipating structure. 
     Description of Related Art 
     An electronic device (e.g., a smartphone) may include electronic components (e.g., a CPU) for performing various functions. Such electronic components may operate to execute a function (e.g., video playback) of the electronic device, and may generate heat during the operation. In addition, when the electronic components generate excessive heat, the performance of the electronic device may be deteriorated. Accordingly, the electronic device may include a heat-dissipating structure (e.g., a vapor chamber and/or a heat-pipe) to dissipate (e.g., radiate to the outside) heat generated in the electronic components. 
     An electronic device may have a reduced size to increase aesthetic perfection or reduce the cost thereof, beyond convenient portability. Accordingly, the size of a component (e.g., a wick) of a heat-dissipating structure disposed in the electronic device is also required to be reduced. 
     In the heat-dissipating structure, the size (e.g., a diameter) of multiple wires, which are components of a wick, is reduced in order to reduce the size of the wick, and the size of an opening formed between the multiple wires is also reduced, so that an internal pressure of the wick may be increased. In this case, in the heat-dissipating structure, considering the characteristics (e.g., high density and viscosity) of a working fluid in the electronic device which consumes relatively low power, the internal pressure of the wick may be increased as the size of the opening is reduced. The increased internal pressure of the wick may act as an obstacle factor to the flow of the working fluid having the above characteristics. 
     SUMMARY 
     Embodiments of the disclosure may provide a heat-dissipating structure which dissipates heat generated in electronic components (e.g., radiates to the outside) while reducing the size of a component (e.g., a wick) of the heat-dissipating structure included in an electronic device. 
     Embodiments of the disclosure may provide a heat-dissipating structure and an electronic device including the heat-dissipating structure, wherein the size of an opening of a wick is determined such that a working fluid passing through the wick of the heat-dissipating structure smoothly flows. 
     A heat-dissipating structure according to an example embodiment disclosed herein may include: a case including: a first body and a second body spaced apart from each other, a wick disposed in a space between the first body and the second body and including multiple wires disposed in a first direction and in a second direction intersecting the first direction, a passage of a working fluid, the passage being formed along at least one opening formed between the multiple wires, and a channel formed between the first body and the wick and configured to move the working fluid through the at least one opening according to a change in a state of the working fluid, wherein the at least one opening is configured such that a size thereof is determined based on an internal pressure of the wick and a flow resistance of the working fluid. 
     In addition, an electronic device according to an example embodiment disclosed herein may include: a housing, a printed circuit board disposed inside the housing and including an electronic component, and a heat-dissipating structure disposed adjacent to the electronic component, wherein the heat-dissipating structure includes: a case including: a first body and a second body spaced apart from each other wherein the second body is in contact with the electronic component, a wick disposed in a space between the first body and the second body and including multiple wires disposed in a first direction and in a second direction intersecting the first direction, a passage of a working fluid, the passage being formed along at least one opening formed between the multiple wires, and a channel formed between the first body and the wick and configured to move the working fluid through the at least one opening according to a change in a state of the working fluid, and the at least one opening is configured such that a size thereof is determined based on an internal pressure of the wick and a flow resistance of the working fluid. 
     In a heat-dissipating structure and an electronic device including the heat-dissipating structure according to various example embodiments disclosed herein, the size of an opening of a wick is determined such that a working fluid passing through the wick of the heat-dissipating structure smoothly flows, so that the size of the heat-dissipating structure and the size of the electronic device may be reduced in a state of maintaining a heat-dissipating effect (e.g., emission to the outside) of the heat-dissipating structure. 
     Various other effects directly or indirectly identified through this disclosure may be provided. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features and advantages of certain embodiments of the present disclosure will be more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a front perspective view illustrating a front surface of an electronic device according to various embodiments; 
         FIG.  2    is a rear perspective view illustrating a rear surface of the electronic device of  FIG.  1    according to various embodiments; 
         FIG.  3    is an exploded perspective view of the electronic device of  FIG.  1    according to various embodiments; 
         FIG.  4    is a diagram illustrating a heat-dissipating structure disposed in an electronic device according to various embodiments; 
         FIG.  5 A  is a cross-sectional view illustrating a part of a heat-dissipating structure according to various embodiments; 
         FIG.  5 B  is a cross-sectional view illustrating a part of a heat-dissipating structure according to various embodiments; 
         FIG.  5 C  is a cross-sectional view illustrating a part of an electronic device according to various embodiments; 
         FIG.  6    is a diagram illustrating an example heat-dissipating structure according to various embodiments; 
         FIG.  7    is a diagram illustrating an example wick of a heat-dissipating structure according to various embodiments; 
         FIG.  8    is a graph illustrating a relationship between an internal pressure of a wick and a flow resistance of a working fluid according to the size of an opening of a heat-dissipating structure according to various embodiments; 
         FIG.  9    is a diagram illustrating a heat-dissipating structure disposed in an electronic device according to various embodiments; and 
         FIG.  10    is a diagram illustrating an example electronic device in a network environment according to various embodiments. 
     
    
    
     In relation to the description of the drawings, the same reference numerals may be assigned to the same or corresponding components. 
     DETAILED DESCRIPTION 
     Hereinafter, various example embodiments of the disclosure are described with reference to the accompanying drawings. However, this is not intended to limit the disclosure to specific embodiments, and should be understood to include various modifications, equivalents, and/or alternatives to embodiments of the disclosure. 
       FIG.  1    is a front perspective view illustrating a front surface of an electronic device according to various embodiments.  FIG.  2    is a rear perspective view illustrating a rear surface of the electronic device of  FIG.  1    according to various embodiments. 
     Referring to  FIGS.  1  and  2   , an electronic device  100  according to an embodiment may include a housing  110  including a first surface (or a front surface)  110 A, a second surface (or a rear surface)  110 B, and a lateral surface  110 C surrounding the space between the first surface  110 A and the second surface  110 B. In an embodiment (not illustrated), the housing may refer to a structure which forms a part of the first surface  110 A, the second surface  110 B, and the lateral surface  110 C of  FIG.  1   . According to an embodiment, the first surface  110 A may be configured by a front plate  102  (e.g., a polymer plate or a glass plate including various coating layers), at least a part of which is substantially transparent. The second surface  110 B may be configured by a rear plate  111  which is substantially opaque. The rear plate  111  may be formed of, for example, coated or colored glass, ceramic, a polymer, or a metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of two or more of the above materials. The lateral surface  110 C may be configured by a lateral bezel structure (or a “lateral member”)  118  coupled to the front plate  102  and the rear plate  111  and including a metal and/or a polymer. In various embodiments, the rear plate  111  and the lateral bezel structure  118  may be integrally configured and may include the same material (e.g., a metal material such as aluminum). 
     In the illustrated embodiment, the front plate  102  may include, at opposite long edges of the front plate  102 , two first areas  110 D which are bent and seamlessly extend from the first surface  110 A toward the rear plate  111 . In the illustrated embodiment (see  FIG.  2   ), the rear plate  111  may include, at opposite long edges thereof, two second areas  110 E which are bent and seamlessly extend from the second surface  110 B toward the front plate  102 . In various embodiments, the front plate  102  (or the rear plate  111 ) may include only one of the first areas  110 D (or the second areas  110 E). In an embodiment, some of the first areas  110 D and the second areas  110 E may not be included. In the above embodiments, when viewed from a lateral side of the electronic device  100 , the lateral bezel structure  118  may have a first thickness (or width) on the lateral surface where the first areas  110 D or the second areas  110 E are not included, and may have a second thickness, which is thinner than the first thickness, on the lateral surface where the first areas  110 D or the second areas  110 E are included. 
     According to an embodiment, the electronic device  100  may include at least one of a display  101 , audio modules  103 ,  107 , and  114 , sensor modules  104 ,  116 , and  119 , camera modules  105  and  112 , a key input device  117 , a light-emitting element  106 , and connector holes  108  and  109 . In various embodiments, at least one (e.g., the key input device  117  or the light-emitting element  106 ) of the components may be omitted from the electronic device  100 , or the electronic device  100  may additionally include other components. 
     For example, the display  101  may be visible through a significant part of the front plate  102 . In various embodiments, at least a part of the display  101  may be visible through the front plate  102  forming the first areas  110 D of the lateral surface  110 C and the first surface  110 A. In various embodiments, the edges of the display  101  may be configured to be substantially the same as the outer contour shape of the front plate  102  adjacent thereto. In an embodiment (not illustrated), the distance between the outer contour of the display  101  and the outer contour of the front plate  102  may be substantially constant in order to enlarge a visible or viewable area of the display  101 . 
     In an embodiment (not illustrated), a recess or an opening is configured in a part of a screen display area of the display  101 , and at least one of the audio module  114 , the sensor module  104 , the camera module  105 , and the light-emitting element  106  aligned with the recess or the opening may be included. In an embodiment (not illustrated), at least one of the audio module  114 , the sensor module  104 , the camera module  105 , a fingerprint sensor  116 , and the light-emitting element  106  may be included on a rear surface of the screen display area of the display  101 . In an embodiment (not illustrated), the display  101  may be coupled to or disposed adjacent to a touch-sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a digitizer which detects a magnetic field-type stylus pen. In various embodiments, at least a part of the sensor modules  104  and  119  and/or at least a part of the key input device  117  may be disposed in the first areas  110 D and/or the second areas  110 E. 
     The audio modules  103 ,  107 , and  114  may include a microphone hole  103  and speaker holes  107  and  114 . The microphone hole  103  may include a microphone disposed therein so as to acquire external sound, and in various embodiments, multiple microphones may be disposed therein so as to detect the direction of sound. The speaker holes  107  and  114  may include an external speaker hole  107  and a phone call receiver hole  114 . In various embodiments, the speaker holes  107  and  114  and the microphone hole  103  may be implemented as a single hole, or a speaker may be included without the speaker holes  107  and  114  (e.g., a piezo speaker). 
     The sensor modules  104 ,  116 , and  119  may generate an electrical signal or a data value corresponding to an internal operating state of the electronic device  100  or an external environment state. The sensor modules  104 ,  116 , and  119  may include, for example, a first sensor module  104  (e.g., a proximity sensor) and/or a second sensor module (not illustrated) (e.g., a fingerprint sensor) disposed on the first surface  110 A of the housing  110 , and/or a third sensor module  119  (e.g., an HRM sensor) and/or a fourth sensor module  116  (e.g., a fingerprint sensor) disposed on the second surface  110 B of the housing  110 . The fingerprint sensor may be disposed not only on the first surface  110 A (e.g., the display  101 ) of the housing  110  but also on the second surface  110 B. The electronic device  100  may further include a sensor module which is not illustrated, for example, at least one of a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The camera modules  105  and  112  may include a first camera device  105  disposed on the first surface  110 A of the electronic device  100 , a second camera device  112  disposed on the second surface  110 B, and/or a flash  113 . The camera devices  105  and  112  may include one or multiple lenses, an image sensor, and/or an image signal processor. The flash  113  may include, for example, a light-emitting diode or a xenon lamp. In various embodiments, two or more lenses (an infrared camera, and wide-angle and telephoto lenses) and image sensors may be arranged on one surface of the electronic device  100 . 
     The key input device  117  may be disposed on the lateral surface  110 C of the housing  110 . In an embodiment, the electronic device  100  may not include a part or all of the above-mentioned key input device  117 , and the key input device  117 , which is not included, may be implemented in another form, such as a soft key, on the display  101 . In various embodiments, a key input device may include the sensor module  116  disposed on the second surface  110 B of the housing  110 . 
     For example, the light-emitting element  106  may be disposed on the first surface  110 A of the housing  110 . For example, the light-emitting element  106  may provide state information of the electronic device  100  in the form of light. In an embodiment, the light-emitting element  106  may provide a light source which is interlocked with, for example, an operation of the camera module  105 . The light-emitting element  106  may include, for example, an LED, an IR LED, and a xenon lamp. 
     The connector holes  108  and  109  may include a first connector hole  108  capable of receiving a connector (e.g., a USB connector) for transmitting or receiving power and/or data to or from an external electronic device, and/or a second connector hole  109  (e.g., an earphone jack) capable of receiving a connector for transmitting or receiving an audio signal to or from an external electronic device. 
       FIG.  3    is an exploded perspective view of the electronic device of  FIG.  1    according to various embodiments. 
     Referring to  FIG.  3   , an electronic device  300  may include a lateral bezel structure  310 , a first support member  311  (e.g., a bracket), a front plate  320 , a display  330 , a printed circuit board  340 , a battery  350 , a second support member  360  (e.g., a rear case), an antenna  370 , and a rear plate  380 . In various embodiments, at least one (e.g., the first support member  311  or the second support member  360 ) of the components may be omitted from the electronic device  300 , or the electronic device  300  may additionally include other components. At least one of the components of the electronic device  300  may be the same as or similar to at least one of the components of the electronic device  100  of  FIGS.  1  or  2   , and a redundant description thereof is omitted below. 
     The first support member  311  may be disposed inside the electronic device  300  to be connected to the lateral bezel structure  310  or to be configured integrally with the lateral bezel structure  310 . The first support member  311  may be made of, for example, a metal material and/or a non-metal (e.g., polymer) material. The first support member  311  may have one surface to which the display  330  is coupled, and the other surface to which the printed circuit board  340  is coupled. The printed circuit board  340  may include a processor, a memory, and/or an interface mounted thereon. The processor may include, for example, one or more of a central processing unit, an application processor, a graphic processing unit, an image signal processor, a sensor hub processor, or a communication processor. 
     The memory may include, for example, a volatile memory or a nonvolatile memory. 
     The interface may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and/or an audio interface. For example, the interface may electrically or physically connect the electronic device  300  to an external electronic device, and include a USB connector, an SD card/MMC connector, or an audio connector. 
     The battery  350  is a device for supplying power to at least one component of the electronic device  300  and may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell. For example, at least a part of the battery  350  may be disposed substantially on the same plane as the printed circuit board  340 . The battery  350  may be integrally disposed inside the electronic device  300  or may be disposed to be detachable from the electronic device  300 . 
     The antenna  370  may be disposed between the rear plate  380  and the battery  350 . The antenna  370  may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and/or a magnetic secure transmission (MST) antenna. For example, the antenna  370  may perform short-range communication with an external device or wirelessly transmit/receive power required for charging. In an embodiment, an antenna structure may be configured by a part of the lateral bezel structure  310  and/or the first support member  311  or a combination thereof. 
     Hereinafter, an example structure of an electronic device to which various embodiments related to the disclosure can be applied may be described with reference to  FIGS.  1  to  3   . However,  FIGS.  1  to  3    merely illustrate, by way of non-limiting example, a structure of the electronic device, and the structure of the electronic device is not limited to the structure shown in  FIGS.  1  to  3   . For example, the electronic device may include at least one hinge structure to have a structure in which a housing divided into multiple areas is folded. 
       FIG.  4    is a diagram illustrating an example heat-dissipating structure disposed in an electronic device according to various embodiments. In an embodiment,  FIG.  4    may be a view illustrating a state in which a rear plate (e.g., the rear plate  111  of  FIG.  2    and the rear plate  380  of  FIG.  3   ) and a second support member (e.g., the second support member  360  of  FIG.  3   ) are removed from a rear surface (e.g., the electronic device in the state of  FIG.  2   ) of an electronic device  400 . 
     According to an embodiment, the electronic device  400  (e.g., the electronic device  300  of  FIG.  3   ) may include an electronic component  401  (e.g., a CPU). In an embodiment, the electronic component  401  may operate to execute a function (e.g., video playback) of the electronic device  400 , and heat may be generated according to the operation of the electronic component  401 . In addition, the temperature of the inside (e.g., the inside of the housing  110  of  FIG.  1   ) of the electronic device  400  may increase due to the heat generated from the electronic component  401 . In an embodiment, the electronic component  401  may be disposed on a printed circuit board  402  (e.g., the printed circuit board  380  of  FIG.  3   ). 
     According to an embodiment, the electronic device  400  may include a heat-dissipating structure  410  (e.g., a vapor chamber and/or a heat-pipe). In an embodiment, the heat-dissipating structure  410  may dissipate heat generated from the electronic component  401  to the inside (e.g., the inside of the housing  110  of  FIG.  1   ) of the electronic device  400 . In an embodiment, the heat-dissipating structure  410  may be configured to have a structure such that at least a part thereof is disposed adjacent to the surface of the electronic component  401 . In an embodiment, the heat-dissipating structure  410  may cover at least a part of the electronic component  401 . For example, when the heat-dissipating structure  410  is viewed from a specified direction (e.g., the z-axis direction), at least a part of the heat-dissipating structure  410  may overlap the electronic component  401 . 
       FIG.  5 A  is a cross-sectional view illustrating a part of a heat-dissipating structure according to various embodiments. In an embodiment,  FIG.  5 A  may be a cross-sectional view taken along line A-A′ of  FIG.  4    and viewed in the x-axis direction of  FIG.  4   . In an embodiment,  FIG.  5 A  may be a view illustrating an example structure of a vapor chamber. 
     According to an embodiment, an electronic device (e.g., the electronic device  400  of  FIG.  4   ) may include a heat-dissipating structure  500   a  (e.g., the heat-dissipating structure  410  of  FIG.  4   ) identical to or similar to the shape of  FIG.  5 A  in order to reduce the size (e.g., the length in the z-axis direction in  FIG.  3   ) thereof in a state of maintaining a heat-dissipating effect (e.g., emission to the outside) of heat generated from an electronic component (e.g., the electronic component  401  of  FIG.  4   ). In an embodiment, the heat-dissipating structure  500   a  may include at least one of a case  510 , a support  530 , a wick  550 , and a channel  570 . In an embodiment, the channel  570  may refer to a part of an inner space formed by the case  510 , and may be dependently included in a component of the electronic device  400  according to whether the case  510  is included in the electronic device  400 . 
     According to an embodiment, the case  510  may include at least one of a first body  511  and a second body  513  configured to absorb heat generated from the electronic component  401 , transfer the heat to the inner space, and then radiate the heat to the inside (e.g., the inside of the housing  110  of  FIG.  1   ) of the electronic device  400 . In an embodiment, the first body  511  and the second body  513  may cause the size (e.g., a fourth thickness T4) of the heat-dissipating structure  500   a  to be determined according to a first thickness T1 (e.g., the length in the z-axis direction). According to an embodiment, the first thicknesses T1 of the first body  511  and/or the second body  513  are shown as being substantially the same, but may be different from each other. For example, the thickness of the first body  511  may be the first thickness T1, and the thickness of the second body  513  may be configured to have a thickness different from the first thickness T1. In an embodiment, the fourth thickness T4 related to the size of the heat-dissipating structure  500   a  may, for example, and without limitation, have a thickness of about 0.2 mm. 
     According to an embodiment, the first body  511  may absorb high-temperature heat from the electronic component  401  through a part of a first surface (e.g., the surface in the -z-axis direction) thereof. In an embodiment, the first body  511  may radiate the absorbed high-temperature heat through another part of the first surface. In an embodiment, the first body  511  may be configured to have a shape corresponding to the shape of the electronic component  401  in consideration of the first surface being in contact with the electronic component  401 . In an embodiment, the first body  511  may be configured to have a shape which can receive the wick  550 , in consideration of the wick  550  being disposed on a second surface (e.g., the surface in the z-axis direction) thereof. 
     According to an embodiment, the second body  513  may form an inner space of the case  510  such that at least one of the support  530 , the wick  550 , and the channel  570  is positioned inside the case  510 . In an embodiment, both sides (e.g., one side in the y-axis direction and the other side in the -y-axis direction) of the second body  513  may protrude toward the second surface (e.g., the surface in the z-axis direction) of the first body  511 . In an embodiment, the protruding both sides of the second body  513  may be at least partially coupled to the second surface of the first body  511 . In an embodiment, when the high-temperature heat absorbed through the first body  511  is transferred to the inner space, the second body  513  may radiate the high-temperature heat toward an opposite direction (e.g., the z-axis direction) to a direction (e.g., the -z-axis direction) in which the first body  511  is positioned. 
     According to an embodiment, the case  510  may be made of a material of stainless steel. For example, and without limitation, the case  510  may be made of a stainless steel material of a 304 low (L) (or 316L) carbon steel material. When the stainless steel is joined at a high temperature, the stainless steel may be corroded due to the interference of oxide film formation by a chemical reaction of carbon (C) and chromium (Cr), and thus the case may be required to be made of a low-carbon steel material. According to an embodiment, the case  510  may include a material having thermal conductivity. For example, and without limitation, the case  510  may include at least one of graphite, a carbon nanotube, a natural regenerated material, or silicon. 
     According to an embodiment, each of the first body  511  and the second body  513  may have the first thickness T1 (e.g., the length in the z-axis direction). For example, each of the first body  511  and the second body  513  may have the first thickness T1 of about 30 µm after being etched. For another example, the first body  511  (or the second body  513 ) may have the first thickness T1 of about 30 µm as a sheet-shaped flat plate which is not etched. 
     According to an embodiment, in relation to the first body  511  and the second body  513 , a part of the first body  511  in the z-axis direction and a part of the second body  513  in the -z-axis direction (e.g., both sides protruding in the z-axis direction) may be connected to each other. For example, the first body  511  and the second body  513  may be coupled by at least one of diffusion bonding, brazing, and laser welding. 
     According to an embodiment, the support  530  may support the first body  511  and the second body  513  such that the shape of an inner space formed between the first body  511  and the second body  513  is maintained. In an embodiment, the support  530  may be configured to have a pillar shape. In an embodiment, the support  530  may have one side (e.g., one side in the z-axis direction) connected to the second body  513  and the other side (e.g., the other side in the -z-axis direction) connected to the wick  550  adjacent to the first body  511  in the inner space of the case  510  formed by the coupling of the first body  511  and the second body  513 . 
     According to an embodiment, the wick  550  may include at least one of a first wire  551   a , a second wire  551   b , an opening  553 , and a passage  555  to circulate a working fluid using the high-temperature heat transferred from the case  510 . In an embodiment, the first wire  551   a  and the second wire  551   b  may cause the size (e.g., the fourth thickness T4) of the heat-dissipating structure  500   a  to be determined according to a second thickness T2 (e.g., the length in the z-axis direction). In an embodiment, the wick  550  may be made of a stainless steel material. For example, the wick  550  may be made of a stainless steel material of 304 low (L) (or 316L) carbon steel material, copper, and/or a Cu alloy. 
     According to an embodiment, the first wire  551   a  may cause at least one opening  553  to be configured according to the arrangement with the second wire  551   b . In an embodiment, the first wire  551   a  may be configured to have a wave shape. In this case, the first wire  551   a  may form, due to the wave shape, an empty space (e.g., a peak and a valley of a wave) in which the second wire  551   b  may be disposed. In an embodiment, the first wire  551   a  may be disposed to face a first direction (e.g., the y-axis direction). In an embodiment, multiple first wires  551   a  may be configured, and may be arranged side by side by a specified interval in a second direction (e.g., the x-axis direction). In addition, one first wire  551   a  among the multiple first wires  551   a  may have a wave shape of a waveform opposite to that of another adjacent first wire  551   a . In an embodiment, the multiple first wires  551   a  may be disposed adjacent to the first body  511  in the inner space of the case  510 . For example, the multiple first wires  551   a  may be disposed adjacent to the second surface of the first body  511  in a state of being substantially parallel to the second surface (e.g., the surface in the z-axis direction) of the first body  511 . The first wire  551   a  may cause the size (e.g., a third thickness T3) of the channel  570  to be determined according to the arrangement in the inner space of the case  510 . 
     According to an embodiment, the second wire  551   b  may cause the at least one opening  553  to be configured according to the arrangement with the first wire  551   a . In an embodiment, the second wire  551   b  may be configured to have a wave shape. For example, the second wire  551   b  may be disposed to face the second direction (e.g., the x-axis direction) in the empty space (e.g., a peak and a valley of a wave) formed due to the shape (e.g., a wave shape) of the first wire  551   a . In an embodiment, multiple second wires  551   b  may be configured, and may be arranged side by side by a specified interval in the first direction (e.g., the y-axis direction). In addition, one second wire  551   b  among the multiple second wires  551   b  may have a wave shape of a waveform opposite to that of another adjacent second wire  551   b . In an embodiment, the multiple second wires  551   b  may be disposed adjacent to the first body  511  in the inner space of the case  510 . For example, the multiple second wires  551   b  may be disposed adjacent to the second surface of the first body  511  in a state of being substantially parallel to the second surface (e.g., the surface in the z-axis direction) of the first body  511 . The second wire  551   b  may cause the size (e.g., the third thickness T3) of the channel  570  to be determined according to the arrangement in the inner space of the case  510 . 
     According to an embodiment, each of the first wire  551   a  and the second wire  551   b  may have the second thickness T2 (e.g., the length in the z-axis direction). For example, the first wire  551   a  and the second wire  551   b  cross to correspond by a wave shape, in different directions (e.g., the x-axis direction and the y-axis direction), so that each of the first wire  551   a  and the second wire  551   b  may have the second thickness T2 of about 15 to about 20 µm. The second thickness T2 may correspond to the size of the wick  550 . 
     According to an embodiment, the opening  553  may cause a working fluid (e.g., a working fluid converted from a liquid state into a gaseous state) to move from the wick  550  to the channel  570 . In an embodiment, the opening  553  may be configured as the multiple first wires  551   a  and the multiple second wires  551   b  cross each other at a specified interval. In an embodiment, multiple openings  553  may be configured such that the number of the multiple openings corresponds to the number of the multiple first wires  551   a  and the multiple second wires  551   b  which cross each other. In an embodiment, the opening  553  may be disposed to face a third direction (e.g., the z-axis direction). 
     According to an embodiment, the size of the opening  553  may be determined based on an internal pressure of the wick  550  and a flow resistance of a working fluid. For example, the opening  553  may have a diameter of about 50 to about 90 µm determined as the size of the opening such that the difference between the internal pressure of the wick  550  and the flow resistance of the working fluid satisfies at least a positive integer. In this case, a substantial length (e.g., the length in the y-axis direction) of the heat-dissipating structure  500   a  may be about 104 mm. 
     According to an embodiment, the passage  555  may store a working fluid in the liquid state. For example, the passage  555  may cause the working fluid in the liquid state to circulate along the passage  555 . In an embodiment, the passage  555  may receive high-temperature heat from the first body  511 . In this case, the passage  555  may convert the working fluid in the liquid state into the working fluid in the gaseous state by the received high-temperature heat. In addition, the passage  555  may move the working fluid in the gaseous state converted by the high-temperature heat to the channel  570  through the opening  553 . 
     According to an embodiment, the channel  570  may convert the working fluid in the gaseous state introduced from the wick  550  through the opening  553  into the working fluid in the liquid state. For example, the working fluid in the gaseous state may be introduced into the channel  570  through the opening  553 . In addition, the channel  570  may cause the working fluid in the gaseous state introduced through the opening  553  to circulate in the inner space. In an embodiment, the working fluid in the gaseous state circulates and is thus converted into the working fluid in the liquid state, so that the channel  570  may again move the working fluid in the liquid state to the passage  555  through the opening  553 . In an embodiment, the channel  570  may have the third thickness T3 (e.g., the length in the z-axis direction). For example, the third thickness T3 of the channel  570  may be determined by the remaining inner space other than the inner space in which the wick  550  is disposed among the inner space of the case  510 . In an embodiment, the channel  570  may have the third thickness T3 of about 100 to about 110 µm. 
     According to an embodiment, the heat-dissipating structure  500   a  may include a working fluid circulating in the inside thereof. In an embodiment, the working fluid may circulate in the wick  550  and the channel  570  through the opening  553  as the state of the working fluid is changed from the liquid state (or gaseous state) to the gaseous state (or liquid state). In an embodiment, the working fluid may be configured by one of water, a water-acetone mixed solution, and a water-ethanol mixed solution. 
     According to various embodiments, a filling ratio of a working fluid filled in the heat-dissipating structure  500   a  may be determined based on [Equation 1]. 
     
       
         
           
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     In various embodiments, the filling ratio of the working fluid filled in the heat-dissipating structure  500   a  may be determined to be 90% to 110%, based on [Equation 1] described above. 
       FIG.  5 B  is a cross-sectional view illustrating a part of a heat-dissipating structure according to various embodiments. In various embodiments,  FIG.  5 B  may be a cross-sectional view taken along line A-A′ of  FIG.  4    and viewed in the y-axis direction of  FIG.  4   . In various embodiments,  FIG.  5 B  may have a structure in which the wick  550  of  FIG.  5 A  is disposed in substantially parallel to the z-axis direction. In various embodiments,  FIG.  5 B  may be a view illustrating a structure of a water-cooled heat-dissipating member (e.g., a heat-pipe, a vapor chamber). 
     According to various embodiments, an electronic device (e.g., the electronic device  400  of  FIG.  4   ) may include a heat-dissipating structure  500   b  (e.g., the heat-dissipating structure  410  of  FIG.  4   ) identical to or similar to the shape of  FIG.  5 B  in order to reduce the size (e.g., the length in the z-axis direction in  FIG.  3   ) thereof in a state of maintaining a heat-dissipating effect (e.g., emission to the outside) of heat generated from an electronic component (e.g., the electronic component  401  of  FIG.  4   ). In various embodiments, the heat-dissipating structure  500   b  may include at least one of a case  510 , a support  530 , a wick  550 , and a channel  570 . In various embodiments, the channel  570  may refer to a part of an inner space formed by the case  510 , and may be dependently included in a component of the electronic device  400  according to whether the case  510  is included in the electronic device  400 . 
     According to various embodiments, the case  510  may include at least one of a first body  511  and a second body  513  in order to absorb heat generated from the electronic component  401 , transfer the heat to the inner space, and then radiate the heat to the inside (e.g., the inside of the housing  110  of  FIG.  1   ) of the electronic device  400 . In various embodiments, the first body  511  and the second body  513  may cause the size (e.g., a fourth thickness T4) of the heat-dissipating structure  500   b  to be determined according to a first thickness T1 (e.g., the length in the z-axis direction). According to various embodiments, the first thicknesses T1 of the first body  511  and/or the second body  513  are shown as being substantially the same, but may be different from each other. For example, the thickness of the first body  511  may be the first thickness T1, and the thickness of the second body  513  may be configured to have a thickness different from the first thickness T1. In various embodiments, the fourth thickness T4 related to the size of the heat-dissipating structure  500   b  may have a thickness of about 0.23 mm. 
     According to various embodiments, the first body  511  may absorb high-temperature heat from the electronic component  401  through a part of a first surface (e.g., the surface in the -z-axis direction) thereof. In various embodiments, the first body  511  may radiate the absorbed high-temperature heat through another part of the first surface. In various embodiments, the first body  511  may be configured to have a shape corresponding to the shape of the electronic component  401  in consideration of the first surface being in contact with the electronic component  401 . In various embodiments, the first body  511  may be configured to have a shape which can receive the wick  550 , in consideration of the wick  550  being disposed on a second surface (e.g., the surface in the z-axis direction) thereof. 
     According to various embodiments, the second body  513  may form an inner space of the case  510  such that at least one of the support  530 , the wick  550 , and the channel  570  is positioned inside the case  510 . In various embodiments, both sides (e.g., one side in the y-axis direction and the other side in the -y-axis direction) of the second body  513  may protrude toward the second surface (e.g., the surface in the z-axis direction) of the first body  511 . In various embodiments, the protruding both sides of the second body  513  may be at least partially coupled to the second surface of the first body  511 . According to various embodiments, the first body  511  and the second body  513  may be coupled by various structures such as the first body  511  protruding toward the first surface or the first body  511  and the second body  513  protruding toward different surfaces (e.g., the first surface and the second surface). In various embodiments, when the high-temperature heat absorbed through the first body  511  is transferred to the inner space, the second body  513  may radiate the high-temperature heat toward an opposite direction (e.g., the z-axis direction) to a direction (e.g., the -z-axis direction) in which the first body  511  is positioned. 
     According to various embodiments, each of the first body  511  and the second body  513  may have the first thickness T1 (e.g., the length in the z-axis direction). For example, each of the first body  511  and the second body  513  may have the first thickness T1 of about 30 µm after being etched. For another example, the first body  511  (or the second body  513 ) may have the first thickness T1 of about 30 µm as a sheet-shaped flat plate which is not etched. 
     According to various embodiments, the support  530  may support the first body  511  and the second body  513  such that the shape of an inner space formed between the first body  511  and the second body  513  is maintained. In various embodiments, the support  530  may be configured to have a pillar shape. In various embodiments, the support  530  may have one side (e.g., one side in the z-axis direction) connected to the second body  513  and the other side (e.g., the other side in the -z-axis direction) connected to the first body  511  in the inner space of the case  510  formed by the coupling of the first body  511  and the second body  513 . In various embodiments, the support  530  may be disposed on each of both sides of the wick  550  between the first body  511  and the second body  513 . For example, multiple supports  530  may be disposed at a specified interval (e.g., the same interval) along a specified direction (e.g., the x-axis direction) on the both sides of the wick  550 . In various embodiments, the supports  530  are disposed on the both sides of the wick  550 , so that the fourth thickness T4 of the heat-dissipating structure  500   b  may be configured to be thinner than the fourth thickness T4 of the heat-dissipating structure  500   a  illustrated in  FIG.  5 A . 
     According to various embodiments, the wick  550  may include at least one of a first wire  551   a , a second wire  551   b , an opening  553 , and a passage  555  to circulate a working fluid using the high-temperature heat transferred from the case  510 . In various embodiments, the first wire  551   a  and the second wire  551   b  may cause the size (e.g., the fourth thickness T4) of the heat-dissipating structure  500   b  to be determined according to a fifth thickness T5 (e.g., the length in the z-axis direction). In various embodiments, the wick  550  may be disposed in substantially parallel to the z-axis direction in the inner space formed between the first body  511  and the second body  513 , unlike the wick of  FIG.  5 A . 
     According to various embodiments, the first wire  551   a  may cause at least one opening  553  to be configured according to the arrangement with the second wire  551   b . In various embodiments, the first wire  551   a  may be configured to have a wave shape. In this case, the first wire  551   a  may form, due to the wave shape, an empty space (e.g., a peak and a valley of a wave) in which the second wire  551   b  may be disposed. In various embodiments, the first wire  551   a  may be disposed to face a third direction (e.g., the z-axis direction). In various embodiments, multiple first wires  551   a  may be configured, and may be arranged side by side by a specified interval in a first direction (e.g., the y-axis direction). In addition, one first wire  551   a  among the multiple first wires  551   a  may have a wave shape of a waveform opposite to that of another adjacent first wire  551   a . 
     According to various embodiments, the second wire  551   b  may cause the at least one opening  553  to be configured according to the arrangement with the first wire  551   a . In various embodiments, the second wire  551   b  may be configured to have a wave shape. For example, the second wire  551   b  may be disposed to face the first direction (e.g., the y-axis direction) in the empty space (e.g., a peak and a valley of a wave) formed due to the shape (e.g., a wave shape) of the first wire  551   a . In various embodiments, multiple second wires  551   b  may be configured, and may be arranged side by side by a specified interval in the third direction (e.g., the z-axis direction). In addition, one second wire  551   b  among the multiple second wires  551   b  may have a wave shape of a waveform opposite to that of another adjacent second wire  551   b . 
     According to various embodiments, each of the first wire  551   a  and the second wire  551   b  may have a second thickness T2 (e.g., the second thickness T2 of  FIG.  5 A ). For example, the first wire  551   a  and the second wire  551   b  cross to correspond by a wave shape, in different directions (e.g., the y-axis direction and the z-axis direction), so that each of the first wire  551   a  and the second wire  551   b  may have the second thickness T2 of about 15 to about 20 µm. 
     According to various embodiments, the opening  553  may cause a working fluid (e.g., a working fluid converted from a liquid state into a gaseous state) to move from the wick  550  to the channel  570 . In various embodiments, the opening  553  may be configured as the multiple first wires  551   a  and the multiple second wires  551   b  cross each other at a specified interval. In various embodiments, multiple openings  553  may be configured such that the number of the multiple openings corresponds to the number of the multiple first wires  551   a  and the multiple second wires  551   b  which cross each other. In various embodiments, the opening  553  may be disposed to face a second direction (e.g., the x-axis direction). 
     According to various embodiments, the size of the opening  553  may be determined based on an internal pressure of the wick  550  and a flow resistance of a working fluid. For example, the opening  553  may have a diameter of about 50 to about 90 µm determined as the size of the opening such that the difference between the internal pressure of the wick  550  and the flow resistance of the working fluid satisfies at least a positive integer. 
     According to various embodiments, the passage  555  may store a working fluid in the liquid state. For example, the passage  555  may cause the working fluid in the liquid state to circulate along the passage  555 . In various embodiments, the passage  555  may be disposed at a position adjacent to the -x-axis direction. In various embodiments, the passage  555  may receive high-temperature heat from the first body  511 . In this case, the passage  555  may convert the working fluid in the liquid state into the working fluid in the gaseous state by the received high-temperature heat. In addition, the passage  555  may move the working fluid in the gaseous state converted by the high-temperature heat to the channel  570  through the opening  553 . 
     According to various embodiments, the channel  570  may convert the working fluid in the gaseous state introduced from the wick  550  through the opening  553  into the working fluid in the liquid state. For example, the working fluid in the gaseous state may be introduced into the channel  570  through the opening  553 . In addition, the channel  570  may cause the working fluid in the gaseous state introduced through the opening  553  to circulate in the inner space. In various embodiments, the channel  570  may be disposed in an opposite direction (e.g., the x-axis direction) to the passage  555  with the wick  550  interposed therebetween. In various embodiments, the working fluid in the gaseous state circulates and is thus converted into the working fluid in the liquid state, so that the channel  570  may again move the working fluid in the liquid state to the passage  555  through the opening  553 . 
     According to various embodiments, the heat-dissipating structure  500   b  may include a working fluid circulating in the inside thereof. In an embodiment, the working fluid may circulate in the wick  550  and the channel  570  through the opening  553  as the state of the working fluid is changed from the liquid state (or gaseous state) to the gaseous state (or liquid state). 
       FIG.  5 C  is a cross-sectional view illustrating a part of an electronic device according to various embodiments. In various embodiments,  FIG.  5 C  may be a cross-sectional view taken along line A-A′ of  FIG.  4    and viewed in the z-axis direction of  FIG.  4   . 
     According to various embodiments, an electronic device  590  (e.g., the electronic device  400  of  FIG.  4   ) may include at least one of a support member  560 , an adhesive member  565 , a heat-dissipating structure  500 , a first liquid heat-dissipating member  570 , a second liquid heat-dissipating member  575 , and a printed circuit board  580 . 
     According to various embodiments, the support member  560  (e.g., the first support member  311  of  FIG.  3   ) may be connected to the heat-dissipating structure  500  through the adhesive member  565 . In various embodiments, the support member  560  may cause at least one of the heat-dissipating structure  500 , the first liquid heat-dissipating member  570 , and the second liquid heat-dissipating member  575  to be disposed between the printed circuit board  580  and the support member  560 . 
     According to various embodiments, the heat-dissipating structure  500  may include at least one of the heat-dissipating structure  500   a  of  FIG.  5 A  and the heat-dissipating structure  500   b  of  FIG.  5 B . In various embodiments, the heat-dissipating structure  500  may be configured to have a size of a fourth thickness T4 (e.g., the fourth thickness T4 of  FIGS.  5 A or  5 B ). In various embodiments, the heat-dissipating structure  500  may be disposed between the support member  560  and the first liquid heat-dissipating member  570 . 
     According to various embodiments, the first liquid heat-dissipating member  570  may be disposed between the heat-dissipating structure  500  and the printed circuit board  580 . In various embodiments, the first liquid heat-dissipating member  570  may absorb heat generated from an electronic component (e.g., a processor  581 ) on the printed circuit board  580  and transfer the heat to the heat-dissipating structure  500 . 
     According to various embodiments, the second liquid heat-dissipating member  575  may be applied in the z-axis direction of the first liquid heat-dissipating member  570 . In various embodiments, the second liquid heat-dissipating member  575  may absorb heat generated from the electronic component (e.g., the processor  581 ) on the printed circuit board  580  and transfer the heat to the first liquid heat-dissipating member  570 . In various embodiments, the second liquid heat-dissipating member  575  may be configured to have a sixth thickness T6 (e.g., 0.05 mm) which is thinner than an interval (e.g., 0.07 mm) formed between the first liquid heat-dissipating member  570  and the electronic component (e.g., the processor  581 ) on the printed circuit board  580 . 
     According to various embodiments, the processor  581  (e.g., the electronic component  401  of  FIG.  4   ) may be disposed on the printed circuit board  580  in the -z-axis direction. In various embodiments, the processor  581  may be disposed adjacent to the second liquid heat-dissipating member  575  in the -z-axis direction. In various embodiments, the processor  581  may generate heat according to an operation for executing a function (e.g., video playback) of the electronic device  590 . In this case, the generated heat may be transferred to the second liquid heat-dissipating member  575 . 
     According to various embodiments, the electronic device  590  may reduce a seventh thickness T7 including the support member  560 , the adhesive member  565 , the heat-dissipating structure  500 , the first liquid heat-dissipating member  570 , the second liquid heat-dissipating member  575 , and the processor  581  to a specified length (e.g., 1.87 mm) in the z-axis direction, based on the fourth thickness T4 of the heat-dissipating structure  500  and the sixth thickness T6 of the second liquid heat-dissipating member  575 . In various embodiments, when the electronic device  590  may be configured as a foldable electronic device in which multiple displays (e.g., a first display and a second display) are connected through a connection member (e.g., a hinge structure), the seventh thickness T7 may be configured to correspond to the thickness of the corresponding electronic device. 
       FIG.  6    is a diagram illustrating an example heat-dissipating structure according to various embodiments. In an embodiment,  FIG.  6    may be a view illustrating an internal structure of a heat-dissipating structure (e.g., the heat-dissipating structure  500   a  of  FIG.  5 A ) is exposed on a plane according to separation of a case (e.g., the case  510  of  FIG.  5 A ). 
     Referring to a first state  600   a , when viewed from the z-axis direction of  FIG.  5 A , the heat-dissipating structure  500   a  may include a second body  613  (e.g., the second body  513  of  FIG.  5 A ) and multiple supports  630  (e.g., the support  530  of  FIG.  5 A ). In an embodiment, the second body  613  may be disposed in a direction substantially parallel to a plane formed between the x-axis direction and the y-axis direction. In an embodiment, the multiple supports  630  may be disposed in a direction substantially perpendicular to the plane formed between the x-axis direction and the y-axis direction. For example, the multiple supports  630  are disposed substantially perpendicular to the second body  613 , so that an inner space of the case  510  is formed when the second body  613  is coupled to a first body  611  (e.g., the first body  511  of  FIG.  5 A ). In various embodiments, the heat-dissipating structure  500   a  may further include a wire wick  690 . The wire wick  690  together with a wick  650  (e.g., the wick  550  of  FIG.  5 A ) may cause a greater amount of working fluid to circulate. For example, the wire wick  690  may be disposed in a direction substantially parallel to the plane formed between the x-axis direction and the y-axis direction. 
     Referring to a second state  600   b , when viewed from the -z-axis direction of  FIG.  5 A , the heat-dissipating structure  500   a  may include the first body  611  and the wick  650 . In an embodiment, the first body  611  may be disposed in a direction substantially parallel to a plane formed between the x-axis direction and the y-axis direction. In an embodiment, the wick  650  may be disposed in a direction substantially parallel to the plane formed between the x-axis direction and the y-axis direction. For example, the wick  650  may be configured to correspond to a shape in which the supports  630  in the first state  600   a  are distributed. In an embodiment, the wick  650  may be expanded to a screen mesh structure  650   a . The screen mesh structure  650   a  may be described in greater detail below with reference to  FIG.  7   . 
       FIG.  7    is an enlarged plan view of a wick of a heat-dissipating structure according to various embodiments. In an embodiment, the screen mesh structure  650   a  may be an enlarged view of a part of the wick  650  of  FIG.  6   . 
     According to an embodiment, the screen mesh structure  650   a  may have a structure in which multiple first wires  751   a  (e.g., the first wire  551   a  of  FIG.  5 A ) and multiple second wires  751   b  (e.g., the second wire  551   b  of  FIG.  5 A ) cross each other. For example, in the screen mesh structure  650   a , the multiple first wires  751   a  facing a first direction (e.g., the y-axis direction) may be arranged side by side in a second direction (e.g., the x-axis direction), and the multiple second wires  751   b  facing the second direction (e.g., the x-axis direction) may be arranged side by side in the first direction (e.g., the y-axis direction). In addition, in the screen mesh structure  650   a , a structure, in which a first wire  751   a  is disposed at the upper side (e.g., the z-axis direction) and a second wire  751   b  is disposed at the upper side (e.g., the z-axis direction) at adjacent cross points among multiple cross points where the multiple first wires  751   a  and the multiple second wires  751   b  cross each other, may repeat. In an embodiment, each of the first wires  751   a  (or the second wires  751   b ) may have a specified diameter D. For example, the specified diameter D may be a diameter for minimizing the size (e.g., the fourth thickness T4 of  FIG.  5 A ) of a heat-dissipating structure (e.g., the heat-dissipating structure  500   a  of  FIG.  5 A ). 
     According to an embodiment, the screen mesh structure  650   a  may have multiple openings  753  (e.g., the opening  553  of  FIG.  5 A ) formed by the multiple first wires  751   a  and the multiple second wires  751   b . In an embodiment, the multiple openings  753  may refer to empty spaces formed by crossing the multiple first wires  751   a  and the multiple second wires  751   b . In an embodiment, each of the multiple openings  753  may have a specified width W. For example, each of the multiple openings  753  may have a width W for allowing a capillary pressure corresponding to an internal pressure of a wick (e.g., the wick  550  of  FIG.  5 A ) and/or a flow resistance corresponding to a pressure drop of a working fluid circulating in the wick  550  to satisfy a specified value (e.g., a positive integer). 
     According to various embodiments, the capillary pressure corresponding to the internal pressure of the wick  550  may be determined based on [Equation 2]. 
     
       
         
           
             
               
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     In various embodiments, when the wick  550  has a wire structure (e.g., the wire wick  690  of  FIG.  6   ), σ = surface tension and γ eƒƒ  = capillary radius of wick. In various embodiments, when the wick  550  has the screen mesh structure  650   a , γ eƒƒ  = (wire dimeter + opening)/2 . 
     According to various embodiments, the flow resistance corresponding to the pressure drop of the working fluid circulating in the wick  550  may be determined based on [Equation 3]. 
     
       
         
           
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       FIG.  8    is a graph illustrating a relationship between an internal pressure of a wick and a flow resistance of a working fluid according to the size of an opening of a heat-dissipating structure according to various embodiments. In an embodiment,  FIG.  8    may be a graph  800  in which the size of an opening is indicated on the A axis and a difference between an internal pressure of a wick and a flow resistance of a working fluid is indicated on the B axis. 
     According to an embodiment, in a heat-dissipating structure (e.g., the heat-dissipating structure  500   a  of  FIG.  5 A ), the size of an opening (e.g., the opening  553  of  FIG.  5 A ) for connecting between a wick (e.g., the wick  550  of  FIG.  5 A ) and a channel (e.g., the channel  570  of  FIG.  5 A ) may be determined based on an internal pressure (e.g., a capillary pressure) of the wick  550  and a flow resistance (e.g., a pressure drop) of a working fluid. In this case, the working fluid may be a working fluid in a liquid state, which circulates inside the wick  550 . In an embodiment, in relation to the opening  553 , when the difference between the internal pressure of the wick  550  and the flow resistance of the working fluid has an at least specified value, a length (e.g., the width W of  FIG.  7   ) for allowing the at least specified value to be configured may correspond to the size of the opening  553 . For example, when the size (unit: µm) of the opening  553  indicated on the B axis in the graph  800  is greater than or equal to a specified value (e.g., about 40 µm), the difference between the internal pressure of the wick  550  indicated on the A-axis and the flow resistance of the working fluid may be configured to be a specified value (e.g., greater than 0). 
     According to an embodiment, the opening  553  may cause the internal pressure of the wick  550  and the flow resistance of the working fluid to be changed based on a substantial length of the heat-dissipating structure  500   a . For example, the opening  553  may cause the internal pressure of the wick  550  and the flow resistance of the working fluid to be changed even when the opening  553  has substantially the same size according to a substantial length (e.g., a length including a curved part of the heat-dissipating structure) of the heat-dissipating structure  500   a  corresponding to each of a first curve  810   a , a second curve  810   b , and a third curve  810   c . Referring to the first curve  810   a , when the substantial length of the heat-dissipating structure  500   a  is a first length (e.g., about 64 mm), the opening  553  may cause the internal pressure of the wick  550  and the flow resistance of the working fluid to be configured as a positive integer at a size of about 28 µm or greater. Referring to the second curve  810   b , when the substantial length of the heat-dissipating structure  500   a  is a second length (e.g., about 84 mm), the opening  553  may cause the internal pressure of the wick  550  and the flow resistance of the working fluid to be configured as a positive integer at a size of about 35 µm or greater. Referring to the third curve  810   c , when the substantial length of the heat-dissipating structure  500   a  is a third length (e.g., about 104 mm), the opening  553  may cause the internal pressure of the wick  550  and the flow resistance of the working fluid to be configured as a positive integer at a size of about 41 µm or greater. 
     According to an embodiment, when the size of the opening  553  is included in an optimization section  800   a , the heat-dissipating structure  500   a , which may be configured to have multiple lengths corresponding to the first curve  810   a , the second curve  810   b , and the third curve  810   c , may cause the internal pressure of the wick  550  and the flow resistance of the working fluid to be configured as a positive integer. For example, the optimization section  800   a  may be a size section of the opening  553  for allowing the internal pressure of the wick  550  and the flow resistance of the working fluid to be configured as a positive integer even when the heat-dissipating structure  500   a  has different lengths. 
       FIG.  9    is a diagram illustrating an example heat-dissipating structure disposed in an electronic device according to various embodiments. 
     Referring to  FIG.  9   , an electronic device  900  (e.g., the electronic device  100  of  FIG.  1   ) according to various embodiments may further include a second housing  925  capable of sliding from a first housing  920  (e.g., the housing  110  of  FIG.  1   ). In various embodiments, the electronic device  900  may move a position of a heat-dissipating structure  910  (e.g., the heat-dissipating structure  410  of  FIG.  4   ) according to a change from a first state  900   a  to a second state  900   b  corresponding to the sliding operation of the second housing  925 . 
     Referring to the first state  900   a , the heat-dissipating structure  910  may be positioned to overlap the first housing  920  in the z-axis direction. In this case, the heat-dissipating structure  910  may be positioned to overlap the first housing  920  in a state of being disposed in the second housing  925 . In various embodiments, when the second housing  925  does not slide in the x-axis direction from the first housing  920 , the electronic device  900  may display a screen through a first display  930  (e.g., the display  101  of  FIG.  1   ). 
     Referring to the second state  900   b , the heat-dissipating structure  910  may be positioned to overlap the second housing  925  in the z-axis direction. In this case, the heat-dissipating structure  910  may not overlap the first housing  920  according to the sliding operation of the second housing  925  in the x-axis direction. In various embodiments, at least a part of the heat-dissipating structure  910  may be disposed adjacent to the surface of an electronic component  901  (e.g., the electronic component  401  of  FIG.  4   ) disposed in the second housing  925 . In various embodiments, when the second housing  925  slides in the x-axis direction from the first housing  920 , the electronic device  900  may display a screen through at least one of the first display  930  and a second display  935 . 
     According to various embodiments, the electronic device  900  may move the second housing  925  from the inside of the first housing  920  toward the x-axis direction by an extension member such as a roller disposed in the -x-axis direction of the first housing  920 . In this case, the second display  935  overlapping the first display  930  in the z-axis direction may be exposed to the outside as in the second state  900   b . In various embodiments, the electronic device  900  may move the second housing  920 , which has been moved in the x-axis direction from the inside of the first housing  920 , to the inside (e.g., the -x-axis direction) of the first housing  920  by the extension member such as the roller disposed in the -x-axis direction of the first housing  920 . In this case, the second display  935  exposed to the outside may at least partially overlap the first display  930  in the z-axis direction. 
       FIG.  10    is a diagram illustrating an example electronic device in a network environment  100  according to various embodiments. 
     Referring to  FIG.  10   , the electronic device  1001  in the network environment  1000  may communicate with an electronic device  1002  via a first network  1098  (e.g., a short-range wireless communication network), or an electronic device  1004  or a server  1008  via a second network  1099  (e.g., a long-range wireless communication network). According to an embodiment, the electronic device  1001  may communicate with the electronic device  1004  via the server  1008 . According to an embodiment, the electronic device  1001  may include a processor  1020 , memory  1030 , an input module  1050 , a sound output module  1055 , a display module  1060 , an audio module  1070 , a sensor module  1076 , an interface  1077 , a connecting terminal  1078 , a haptic module  1079 , a camera module  1080 , a power management module  1088 , a battery  1089 , a communication module  1090 , a subscriber identification module (SIM)  1096 , or an antenna module  1097 . In various embodiments, at least one of the components (e.g., the connecting terminal  1078 ) may be omitted from the electronic device  1001 , or one or more other components may be added in the electronic device  1001 . In various embodiments, some of the components (e.g., the sensor module  1076 , the camera module  1080 , or the antenna module  1097 ) may be implemented as a single component (e.g., the display module  1060 ). 
     The processor  1020  may execute, for example, software (e.g., a program  1040 ) to control at least one other component (e.g., a hardware or software component) of the electronic device  1001  coupled with the processor  1020 , and may perform various data processing or computation. According to an embodiment, as at least part of the data processing or computation, the processor  1020  may store a command or data received from another component (e.g., the sensor module  1076  or the communication module  1090 ) in volatile memory  1032 , process the command or the data stored in the volatile memory  1032 , and store resulting data in non-volatile memory  1034 . According to an embodiment, the processor  1020  may include a main processor  1021  (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor  1023  (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor  1021 . For example, when the electronic device  1001  includes the main processor  1021  and the auxiliary processor  1023 , the auxiliary processor  1023  may be adapted to consume less power than the main processor  1021 , or to be specific to a specified function. The auxiliary processor  1023  may be implemented as separate from, or as part of the main processor  1021 . 
     The auxiliary processor  1023  may control, for example, at least some of functions or states related to at least one component (e.g., the display module  1060 , the sensor module  1076 , or the communication module  1090 ) among the components of the electronic device  1001 , instead of the main processor  1021  while the main processor  1021  is in an inactive (e.g., sleep) state, or together with the main processor  1021  while the main processor  1021  is in an active (e.g., executing an application) state. According to an embodiment, the auxiliary processor  1023  (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module  1080  or the communication module  1090 ) functionally related to the auxiliary processor  1023 . According to an embodiment, the auxiliary processor  1023  (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device  1001  where the artificial intelligence model is performed or via a separate server (e.g., the server  1008 ). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure. 
     The memory  1030  may store various data used by at least one component (e.g., the processor  1020  or the sensor module  1076 ) of the electronic device  1001 . The various data may include, for example, software (e.g., the program  1040 ) and input data or output data for a command related thereto. The memory  1030  may include the volatile memory  1032  or the non-volatile memory  1034 . 
     The program  1040  may be stored in the memory  1030  as software, and may include, for example, an operating system (OS)  1042 , middleware  1044 , or an application  1046 . 
     The input module  1050  may receive a command or data to be used by another component (e.g., the processor  1020 ) of the electronic device  1001 , from the outside (e.g., a user) of the electronic device  1001 . The input module  1050  may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen). 
     The sound output module  1055  may output sound signals to the outside of the electronic device  1001 . The sound output module  1055  may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker. 
     The display module  1060  may visually provide information to the outside (e.g., a user) of the electronic device  1001 . The display module  1060  may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module  1060  may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch. 
     The audio module  1070  may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module  1070  may obtain the sound via the input module  1050 , or output the sound via the sound output module  1055  or an external electronic device (e.g., an electronic device  1002  (e.g., a speaker or a headphone)) directly or wirelessly coupled with the electronic device  1001 . 
     The sensor module  1076  may detect an operational state (e.g., power or temperature) of the electronic device  1001  or an environmental state (e.g., a state of a user) external to the electronic device  1001 , and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module  1076  may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The interface  1077  may support one or more specified protocols to be used for the electronic device  1001  to be coupled with the external electronic device (e.g., the electronic device  1002 ) directly or wirelessly. According to an embodiment, the interface  1077  may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. 
     The connecting terminal  1078  may include a connector via which the electronic device  1001  may be physically connected with the external electronic device (e.g., the electronic device  1002 ). According to an embodiment, the connecting terminal  1078  may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector). 
     The haptic module  1079  may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module  1079  may include, for example, a motor, a piezoelectric element, or an electric stimulator. 
     The camera module  1080  may capture a still image or moving images. According to an embodiment, the camera module  1080  may include one or more lenses, image sensors, image signal processors, or flashes. 
     The power management module  1088  may manage power supplied to the electronic device  1001 . According to an embodiment, the power management module  1088  may be implemented as at least part of, for example, a power management integrated circuit (PMIC). 
     The battery  1089  may supply power to at least one component of the electronic device  1001 . According to an embodiment, the battery  1089  may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell. 
     The communication module  1090  may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device  1001  and the external electronic device (e.g., the electronic device  1002 , the electronic device  1004 , or the server  1008 ) and performing communication via the established communication channel. The communication module  1090  may include one or more communication processors that are operable independently from the processor  1020  (e.g., the application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module  1090  may include a wireless communication module  1092  (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module  1094  (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device  1004  via the first network  1098  (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network  1099  (e.g., a long-range communication network, such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module  1092  may identify or authenticate the electronic device  1001  in a communication network, such as the first network  1098  or the second network  1099 , using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module  1096 . 
     The wireless communication module  1092  may support a 5G network, after a 4G network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module  1092  may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module  1092  may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module  1092  may support various requirements specified in the electronic device  1001 , an external electronic device (e.g., the electronic device  1004 ), or a network system (e.g., the second network  1099 ). According to an embodiment, the wireless communication module  1092  may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC. 
     The antenna module  1097  may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device  1001 . According to an embodiment, the antenna module  1097  may include an antenna including a radiating element including a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module  1097  may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network  1098  or the second network  1099 , may be selected, for example, by the communication module  1090  from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module  1090  and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module  1097 . 
     According to various embodiments, the antenna module  1097  may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band. 
     At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)). 
     According to an embodiment, commands or data may be transmitted or received between the electronic device  1001  and the external electronic device  1004  via the server  1008  coupled with the second network  1099 . Each of the external electronic devices  1002  or  1004  may be a device of a same type as, or a different type, from the electronic device  1001 . According to an embodiment, all or some of operations to be executed at the electronic device  101  may be executed at one or more of the external electronic devices  1002 ,  1004 , or  1008 . For example, if the electronic device  1001  should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device  1001 , instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device  1001 . The electronic device  1001  may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device  1001  may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In an embodiment, the external electronic device  1004  may include an internet-of-things (IoT) device. The server  1008  may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device  1004  or the server  1008  may be included in the second network  1099 . The electronic device  1001  may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology. 
     According to various example embodiments, a heat-dissipating structure (e.g., the heat-dissipating structure  500   a  of  FIG.  5 A ) may include: a case (e.g., the case  510  of  FIG.  5 A ) including: a first body (e.g., the first body  511  of  FIG.  5 A ) and a second body (e.g., the second body  513  of  FIG.  5 A ) spaced apart from each other; a wick (e.g., the wick  550  of  FIG.  5 A ) disposed in a space between the first body and the second body, the wick including multiple wires (e.g., the first wire  551   a  and the second wire  551   b  of  FIG.  5 A ) disposed in a first direction and in a second direction intersecting the first direction, and having a passage (e.g., the passage  555  of  FIG.  5 A ) for a working fluid, the passage being formed along at least one opening (e.g., the opening  553  of  FIG.  5 A ) formed between the multiple wires (the first wire  551   a  and the second wire  551   b ); and a channel (e.g., the channel  570  of  FIG.  5 A ) formed between the first body and the wick and configured to move the working fluid through the at least one opening according to a change in a state of the working fluid, wherein the at least one opening is configured such that a size thereof is determined based on an internal pressure of the wick and a flow resistance of the working fluid. 
     According to various example embodiments, the at least one opening may be configured such that the size thereof is determined based on a difference between the internal pressure of the wick and the flow resistance of the working fluid having an at least specified value. 
     According to various example embodiments, the at least specified value may be a positive integer. 
     According to various example embodiments, the heat-dissipating structure may be configured such that the internal pressure of the wick and the flow resistance of the working fluid are changed based on a substantial length of the heat-dissipating structure facing the first direction. 
     According to various example embodiments, the substantial length of the heat-dissipating structure may be configured to include a curved part of the heat-dissipating structure. 
     According to various example embodiments, the wick may be configured to have at least one structure among a first structure having a length specified in the first direction and the second direction and a second structure having a length specified to be shorter in the second direction than the first structure. 
     According to various example embodiments, the case may be configured to have a first thickness in a third direction forming a specified angle with a plane between the first direction and the second direction. 
     According to various example embodiments, the wick may be configured to have a second thickness in the third direction. 
     According to various example embodiments, the channel may have a third thickness in the third direction, and a length obtained by summing the first thickness, the second thickness, and the third thickness and may be within a specified value. 
     According to various example embodiments, the case may comprise a stainless steel material. 
     According to various example embodiments, an electronic device (e.g., the electronic device  400  of  FIG.  4   ) may include: a housing (e.g., the housing  110  of  FIG.  1   ); a printed circuit board (e.g., the printed circuit board  402  of  FIG.  4   ) disposed inside the housing and including an electronic component (e.g., the electronic component  401  of  FIG.  4   ); and a heat-dissipating structure disposed adjacent to the electronic component  401 , wherein the heat-dissipating structure includes: a case which includes: a first body and a second body spaced apart from each other and in which the second body is in contact with the electronic component; a wick disposed in a space between the first body and the second body, the wick including multiple wires (e.g., a first wire  551   a  and a second wire  551   b ) disposed in a first direction and in a second direction intersecting the first direction, and having a passage for a working fluid, the passage being formed along at least one opening formed between the multiple wires (the first wire  551   a  and the second wire  551   b ); and a channel formed between the first body and the wick and configured to move the working fluid through the at least one opening according to a change in a state of the working fluid, and the at least one opening is configured such that a size thereof is determined based on an internal pressure of the wick and a flow resistance of the working fluid. 
     According to various example embodiments, the at least one opening may be configured such that the size thereof is determined based on a difference between the internal pressure of the wick and the flow resistance of the working fluid having an at least specified value. 
     According to various example embodiments, the at least specified value may be a positive integer. 
     According to various example embodiments, the heat-dissipating structure may be configured such that the internal pressure of the wick and the flow resistance of the working fluid are changed based on a substantial length of the heat-dissipating structure facing the first direction. 
     According to various example embodiments, the substantial length of the heat-dissipating structure may include a curved part of the heat-dissipating structure. 
     According to various example embodiments, the wick may be configured to have at least one structure among a first structure having a length specified in the first direction and the second direction and a second structure having a length specified to be shorter in the second direction than the first structure. 
     According to various example embodiments, the case may be configured to have a first thickness in a third direction forming a specified angle with a plane between the first direction and the second direction. 
     According to various example embodiments, the wick may be configured to have a second thickness in the third direction. 
     According to various example embodiments, the channel may have a third thickness in the third direction, and a length obtained by summing the first thickness, the second thickness, and the third thickness and may be within a specified value. 
     According to various example embodiments, the case may comprise a stainless steel material. 
     The electronic device according to various embodiments disclosed herein may be one of various types of electronic devices. The electronic devices may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, a home appliance, or the like. The electronic device according to embodiments of the disclosure is not limited to those described above. 
     It should be appreciated that various embodiments of the disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or alternatives for a corresponding embodiment. With regard to the description of the drawings, similar reference numerals may be used to designate similar or relevant elements. A singular form of a noun corresponding to an item may include one or more of the items, unless the relevant context clearly indicates otherwise. As used herein, each of such phrases as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” may include all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “a first”, “a second”, “the first”, and “the second” may be used to simply distinguish a corresponding element from another, and does not limit the elements in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with/to” or “connected with/to” another element (e.g., a second element), the element may be coupled/connected with/to the other element directly (e.g., wiredly), wirelessly, or via a third element. 
     As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, or any combination thereof, and may be interchangeably used with other terms, for example, “logic,” “logic block,” “component,” or “circuit”. The “module” may be a minimum unit of a single integrated component adapted to perform one or more functions, or a part thereof. For example, according to an embodiment, the “module” may be implemented in the form of an application-specific integrated circuit (ASIC). 
     According to various embodiments, each element (e.g., a module or a program) of the above-described elements may include a single entity or multiple entities. According to various embodiments, one or more of the above-described elements may be omitted, or one or more other elements may be added. Alternatively or additionally, a plurality of elements (e.g., modules or programs) may be integrated into a single element. In such a case, according to various embodiments, the integrated element may still perform one or more functions of each of the plurality of elements in the same or similar manner as they are performed by a corresponding one of the plurality of elements before the integration. According to various embodiments, operations performed by the module, the program, or another element may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added. 
     While the disclosure has been illustrated and described with reference to various example embodiments, it will be understood that the various example embodiments are intended to be illustrative, not limiting. It will be further understood by those skilled in the art that various changes in form and detail may be made without departing from the true spirit and full scope of the disclosure, including the appended claims and their equivalents. It will also be understood that any of the embodiment(s) described herein may be used in conjunction with any other embodiment(s) described herein.