Patent ID: 12224226

DETAILED DESCRIPTION

The present disclosure may be understood by reference to the following detailed description, taken in conjunction with the drawings as described below. It is noted that, for purposes of illustrative clarity and being easily understood by the readers, various drawings of the present disclosure show a portion of the device, and certain components in various drawings may not be drawn to scale. In addition, the number and dimension of each component shown in drawings are only illustrative and are not intended to limit the scope of the present disclosure.

Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will understand, electronic equipment manufacturers may refer to a component by different names. This document does not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms “include” and “comprise” are used in an open-ended fashion, and thus should be interpreted to mean “include, but not limited to . . . ”. When the terms “include”, “comprise” and/or “have” are used in the description of the present disclosure, the corresponding features, areas, steps, operations and/or components would be pointed to existence, but not limited to the existence or addition of one or a plurality of the corresponding or other features, areas, steps, operations, components and/or combinations thereof.

When a component or layer is referred to as being “on” or “connected to” another component or layer, it may be directly on or directly connected to the other component or layer, or intervening components or layers may be presented (indirect condition). In contrast, when a component or layer is referred to as being “directly on” or “directly connected to” another component or layer, there are no intervening components or layers presented.

The directional terms mentioned in this document, such as “up”, “down”, “front”, “back”, “left”, “right”, etc., are only directions referring to the drawings. Therefore, the directional terms used are for illustration, not for limitation of the present disclosure. In the drawings, each drawing shows the general characteristics of structures and/or materials used in specific embodiments. However, these drawings should not be interpreted as defining or limiting the scope or nature covered by these embodiments. For example, the relative size, thickness and position of each layer, region and/or structure may be reduced or enlarged for clarity.

The terms “about”, “equal”, “identical” or “the same”, and “substantially” or “approximately” mentioned in this document generally mean being within 20% of a given value or range, or being within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.

The ordinal numbers used in the description and claims, such as “first”, “second”, “third”, etc., are used to describe elements, but they do not mean and represent that the element(s) have any previous ordinal numbers, nor do they represent the order of one element and another element, or the order of manufacturing methods. The ordinal numbers are used only to clearly discriminate an element with a certain name from another element with the same name. The claims and the description may not use the same terms. Accordingly, in the following description, a first constituent element may be a second constituent element in a claim.

The electronic device of the present disclosure may include a display device, a backlight device, an antenna device, a sensing device or a tiled device, but not limited herein. The electronic device may include a bendable or flexible electronic device. The display device may include a non-self-emissive display device or a self-emissive display device. The antenna device may include a liquid-crystal type antenna device or an antenna device other than liquid-crystal type, and the sensing device may include a sensing device used for sensing capacitance, light, heat or ultrasonic waves, but not limited herein. The tiled device may be, for example, a display tiled device or an antenna tiled device, but not limited herein. It should be noted that the electronic device may be any arrangement and combination of the above, but not limited herein.

It should be noted that the technical features in different embodiments described in the following can be replaced, recombined, or mixed with one another to constitute another embodiment without departing from the spirit of the present disclosure.

Please refer toFIG.1andFIG.2A.FIG.1is a partial cross-sectional schematic diagram of an electronic device according to a first embodiment of the present disclosure.FIG.2Ais a top-view perspective schematic diagram of the electronic device according to the first embodiment of the present disclosure, that is, a perspective schematic diagram viewed from the top of the electronic device along a direction Y, whereinFIG.1is a partial cross-sectional schematic diagram along the section line A-A′ ofFIG.2A. As shown inFIG.1andFIG.2A, an electronic device100according to a first embodiment of the present disclosure may include a circuit layer110, an electronic element120and a thermal conducting element130. The circuit layer110may include a plurality of conductive layers112and a plurality of insulating layers114stacked in the direction Y. For example, the circuit layer110may include a conductive layer112a, a conductive layer112b, a conductive layer112c, an insulating layer114aand an insulating layer114b, but not limited herein. In this embodiment, the circuit layer110may be a redistribution layer (RDL) for redistributing the circuit. For example, the contact positions of the circuit may be changed through one or more metal wiring processes and a connection pad process, but not limited herein. That is to say, the positions of an input terminal (e.g., the connection pad) and an output terminal (e.g., the conductive elements) may be adjusted, such as changed from a position A to a position B, wherein the through hole of the position A is not overlapped with the through hole of the position B. Alternatively, the wiring may be adjusted, such as integrating the signals or integrating two signal lines into one signal line, but not limited herein. In the present disclosure, the direction Y may be a top-view direction of the electronic device, a direction X may be substantially parallel to the horizontal direction, that is, parallel to a surface of the electronic element120, and the direction Y may be substantially perpendicular to the direction X. The electronic element120is disposed on the circuit layer110and electrically connected to the circuit layer110. The electronic element120may be, for example, a die, a chip, an integrated circuit (IC), a light-emitting unit or other suitable active elements and/or passive elements, but not limited herein.

The thermal conducting element130is disposed between the circuit layer110and the electronic element120, and the thermal conducting element130is used for performing heat exchange with the electronic element120, so as to improve the heat transfer efficiency or heat dissipation efficiency of the electronic device100. The term “heat exchange” in the present disclosure may refer to existing energy transfer. For example, the thermal energy of the electronic element120may be transferred to the circuit layer110through the thermal conducting element130, or the thermal energy of the circuit layer110may be transferred to the electronic element120through the thermal conducting element130, but not limited herein. In some embodiments, the thermal conducting element130may include thermal conductive material. The “thermal conductive material” in the present disclosure may be, for example, a material with a thermal conductivity greater than 0.4 watts per meter-kelvin (W/(m·K)). The thermal conductive material includes, for example, pouring sealant, silicone paste, silicone grease, thermal conductive mud, a silicone sheet, thermal conductive tape, heat dissipation oil, thermal conductive coating, plastic, a thermal conductive film, insulating material, interface material, double-sided tape, a thermal conductive and heat dissipation substrate, phase-change material, a heat dissipation film, a mica sheet, a pad, tape, a liquid metal thermal conductive sheet, metal material, conductive material, other suitable materials or combinations of the above materials, but not limited herein.

In some embodiments, as shown inFIG.1andFIG.2A, the electronic device100of the present disclosure may further include a connection pad140. The connection pad140is disposed on the circuit layer110and electrically connected to the circuit layer110. Furthermore, the electronic element120may include a plurality of connectors122, and the plurality of connectors122are electrically connected to the connection pad140. The connectors122may be, for example, bumps, but not limited herein. In some embodiments, the electronic element120may be fixed to the connection pads140on the circuit layer110by, for example, a thin quad flat package technology, but not limited herein. In detail, the circuit layer110may include a conductive layer112a, a conductive layer112band a conductive layer112c. The conductive layer112bis disposed on the conductive layer112a, and the conductive layer112cis disposed on the conductive layer112b. The insulating layer114may include one or more connection hole(s)116, and the conductive layer112a, the conductive layer112band the conductive layer112cmay be electrically connected through the connection hole(s)116. Grooves118may be optionally formed on the surface of a portion of the conductive layer112c, and a plurality of connection pads140are respectively correspondingly disposed in one of the grooves118and electrically connected to the conductive layer112c. For example, each of the connection pads140may be at least partially overlapped with each of the grooves118in the direction Y, but not limited herein. In addition, each of the connectors122of the electronic element120may be electrically connected to one of the connection pads140through a conductive element124. The conductive element124may be a solder ball, for example. The conductive element124may include copper, tin, nickel, gold, lead, other suitable conductive materials or combinations of the above materials, but not limited herein. In some embodiments, the thermal conducting element130may include a plurality of thermal conducting portions132. The plurality of thermal conducting portions132may be spaced apart from each other and disposed between the circuit layer110and the electronic element120. As shown in the top view ofFIG.2A, for example, the thermal conducting portion132may be disposed between adjacent connection pads140or between the connection pad140and an edge120S of the electronic element120in the direction X, but not limited herein. A size of the thermal conducting portions132may be adjusted according to a size and/or density of the connection pads140. InFIG.1, in the direction X, a width of an upper side130T of the thermal conducting portion132is similar to a width of the connection pad140as an example. InFIG.2A, a top area of the thermal conducting portion132is similar to an area of the connection pad140as an example. However, the size of the thermal conducting portion132is not limited herein.

In some embodiments, as shown inFIG.1andFIG.2A, the electronic element120includes a plurality of connectors122, and a size of one connector1221of the plurality of connectors122is different from a size of another one connector1222of the plurality of connectors122. For example, as shown inFIG.1, in the direction X, a width W1of the connector1221may be greater than a width W2of the connector1222, or as shown in the top view ofFIG.2A, an area of the connector1221may be greater than an area of the connector1222, but not limited herein. In some embodiments, each of the connectors122has the same size or different sizes. The connector122with larger size (e.g., the connector1221) may have a higher output wattage or transmission speed, and the connector122with smaller size (e.g., the connector1222) may have a lower output wattage or transmission speed, but not limited herein. In some embodiments, as shown inFIG.2A, a portion of the plurality of connectors122of the electronic element120may output the same signal, and another portion of the plurality of connectors122of the electronic element120may output another signal. For example, the connectors122in the first row may output a first signal, which are assorted into a first group G1as shown inFIG.2A, the connectors122in the second row may output a second signal, which are assorted into a second group G2inFIG.2A, and the first signal is different from the second signal. That is to say, the first signal output by the connector1222in the second group G2may be different from the second signal output by the connector1221in the first group G1, but not limited herein. The signal output by each of the connectors122may be adjusted according to the practical design of the electronic element120. For example, the signal output by each connector122may be independent and different from each other in other embodiments.

In some variation embodiments, the sizes of the connection pads140may be different, or the size of the connection pad140may correspond to the size of the connector122. For example, the size of the connection pad140corresponding to the connector1221may be greater than the size of the connection pad140corresponding to the connector1222, so as to improve the heat transfer efficiency or heat dissipation efficiency, but not limited herein. The size of each of the connection pads140may be adjusted according to the practical design of the circuit layer110. For example, the sizes of the connection pads140may be the same in other embodiments.

Please refer toFIG.1,FIG.2AandFIG.2B.FIG.2Bis a bottom-view schematic diagram of the electronic device according to the first embodiment of the present disclosure, that is, a bottom view along a direction opposite to the direction Y. In some embodiment, as shown inFIG.1,FIG.2AandFIG.2B, the electronic device100of the present disclosure may further include a plurality of conductive elements150disposed on one side of the circuit layer110opposite to the electronic element120. The plurality of conductive elements150may be electrically connected to the circuit layer110, and a portion of the conductive elements150may be electrically connected to the electronic element120through the circuit layer110. The conductive elements150may be solder balls, for example. The conductive elements150may include copper, tin, nickel, gold, lead or other suitable conductive materials, but not limited herein. For example, as shown inFIG.1, the plurality of conductive elements150may be electrically connected to the conductive layer112awhich is the lowest layer in the circuit layer110, and a portion of the conductive elements150may be electrically connected to the connectors122of the electronic element120via the conductive layer112a, the conductive layer112b, the conductive layer112cand the connection pads140. In some embodiments, a size of one conductive element1501of the plurality of conductive elements150may be different from a size of another one conductive element1502of the plurality of conductive elements150, wherein the above sizes may be lengths or thicknesses in the same direction or may be areas viewed from the top. For example, as shown inFIG.1, in the direction X, a width W3of the conductive element1501may be greater than a width W4of the conductive element1502, or as shown in the bottom view ofFIG.2B, an area of the conductive element1501may be greater than an area of the conductive element1502, but not limited herein. In some embodiments, the sizes of the conductive elements150may be different, or the size of the conductive element150may correspond to the size of the connector122. For example, the size of the conductive element150corresponding to the connector1221may be greater than the size of the conductive element150corresponding to the connector1222, so as to improve the heat transfer efficiency or heat dissipation efficiency, but not limited herein.

In some embodiments, the number of the connection pads140disposed on one side of the circuit layer110may be the same as or different from the number of the conductive elements150disposed on the other side of the circuit layer110by changing contact positions of the circuit through a metal wiring process and a connection pad process. For example, the number of the connection pads140may be less than the number of the conductive elements150. The number of the connection pads140may be 6 as shown in the top view ofFIG.2A, and the number of the conductive elements150may be 25 as shown in the bottom view ofFIG.2B, but the number of the connection pads140and the number of the conductive elements150are not limited herein, which may be adjusted according to the design of practical structure of the device. In other embodiments, the number of the connection pads140may be the same as the number of the conductive elements150, and each of the connection pads140is not overlapped with each of conductive elements150in the direction Y. In other embodiments, the number of the connection pads140may be greater than the number of the conductive elements150, but not limited herein.

Some embodiments of the present disclosure will be detailed in the following. In order to simplify the illustration, the same elements in the following would be labeled with the same symbols. The differences between different embodiments are described in detail below, and each of the embodiments and another embodiment of the present disclosure may be combined and adjusted with each other.

Please refer toFIG.3andFIG.4.FIG.3is a partial cross-sectional schematic diagram of an electronic device according to a second embodiment of the present disclosure.FIG.4is a top-view perspective schematic diagram of the electronic device according to the second embodiment of the present disclosure, that is, a perspective schematic diagram viewed from the top of the electronic device along the direction Y, whereinFIG.3is a partial cross-sectional schematic diagram along the section line A-A′ ofFIG.4. As shown inFIG.3andFIG.4, an electronic device200according to a second embodiment of the present disclosure may include a circuit layer110, an electronic element120and a thermal conducting element130. The circuit layer110may include a plurality of conductive layers112and a plurality of insulating layers114stacked in the direction Y, and the circuit layer110may be a redistribution layer (RDL) to redistribute the circuit. For example, the contact positions of the circuit may be changed through a metal wiring process and a connection pad process, but not limited herein. The electronic element120is disposed on the circuit layer110and electrically connected to the circuit layer110, and the electronic element120includes a plurality of connectors122. The thermal conducting element130is disposed between the circuit layer110and the electronic element120. The thermal conducting element130has a plurality of openings134, and the plurality of connectors122of the electronic element120correspond to the plurality of openings134of the thermal conducting element130. For example, each of the plurality of connectors122may be at least partially overlapped with each of the plurality of openings134in the direction Y, but not limited herein. The thermal conducting element130is used for performing heat exchange with the electronic element120, so as to improve the heat dissipation efficiency of the electronic device200.

The disposing range of the thermal conducting element130may extend beyond a peripheral edge120S of the electronic element120, that is, an edge130S of the thermal conducting element130may be more protruding relative to the edge120S of the electronic element120. In the top view ofFIG.4, it may be seen that the edge120S of the electronic element120is located in the region constructed by the edge130S of the thermal conducting element130. The above design may increase the heat transfer area. For example, through process such as coating, exposure and/or development, the thermal conducting element130may be formed on the circuit layer110, and the plurality of openings134may be formed, so as to reserve space for subsequent disposing the plurality of connectors122of the electronic element120to be electrically connected to the circuit layer110. The surface of the thermal conducting element130may have an arc shape or other irregular shapes, but not limited herein.

In some embodiments, as shown inFIG.3andFIG.4, the electronic device200of the present disclosure may further include a plurality of connection pads140disposed on the circuit layer110, and the plurality of connection pads140are electrically connected to the conductive layer112which is the uppermost layer in the circuit layer110and may respectively correspond to one of the openings134of the thermal conducting element130. A gap g1may exist between each of the plurality of connection pads140and the thermal conducting element130, that is, the thermal conducting element130does not directly contact with the connection pads140, but not limited herein. Furthermore, each of the connectors122of the electronic element120may be electrically connected to one of the connection pads140through a conductive element124. In some embodiments, the electronic device200of the present disclosure may further include a plurality of conductive elements150disposed on one side of the circuit layer110opposite to the electronic element120, and the plurality of conductive elements150may be electrically connected to the conductive layer112which is the lowest layer in the circuit layer110, but not limited herein.

Please refer toFIG.5andFIG.6.FIG.5is a partial cross-sectional schematic diagram of an electronic device according to a third embodiment of the present disclosure.FIG.6is a top-view perspective schematic diagram of the electronic device according to the third embodiment of the present disclosure, that is, a perspective schematic diagram viewed from the top of the electronic device along the direction Y, whereinFIG.5is a partial cross-sectional schematic diagram along the section line A-A′ ofFIG.6. As shown inFIG.5andFIG.6, an electronic device300according to a third embodiment of the present disclosure may include a circuit layer110, a connection pad140and an electronic element120. The circuit layer110may include a plurality of conductive layers112and a plurality of insulating layers114stacked in the direction Y. The connection pad140is disposed on the circuit layer110, and the electronic element120is disposed on the circuit layer110and electrically connected to the circuit layer110. The electronic element120includes a plurality of connectors122, and the plurality of connectors122are electrically connected to the connection pad140, wherein multiple connectors122may correspond to the same connection pad140, so as to increase the heat transfer area, thereby improving the heat transfer efficiency. For example, multiple connectors122may be overlapped or partially overlapped with the same connection pad140in the direction Y. InFIG.6, four connectors122correspond to one connection pad140as an example, but the number of the connectors122corresponding to one connection pad140is not limited herein, which may be adjusted according to the design of practical structure of the device.

In some embodiment, as shown inFIG.5andFIG.6, the electronic device300of the present disclosure may further include a thermal conducting element130disposed on the circuit layer110, and a gap g2may exist between the thermal conducting element130and the electronic element120in the direction Y. That is to say, the thermal conducting element130does not directly contact with the electronic element120. The thermal conducting element130may have an arc shape or other irregular shapes, but not limited herein. In addition, the disposing range of the thermal conducting element130may not extend beyond a peripheral edge120S of the electronic element120, that is, an edge130S of the thermal conducting element130is located within the range of the edge120S of the electronic element120in the top view. The thermal conducting element130may directly contact with the connection pad140, that is, no gap exists between the connection pad140and the thermal conducting element130, so as to improve the heat transfer efficiency, but not limited herein. In the embodiment shown inFIG.5, the connection pad140may be located in an opening134of the thermal conducting element130, or the connection pad140may be disposed corresponding to the opening134of the thermal conducting element130.

Please refer toFIG.7.FIG.7is a partial cross-sectional schematic diagram of an electronic device according to a fourth embodiment of the present disclosure. As shown inFIG.7, an electronic device400according to a fourth embodiment of the present disclosure may include a circuit layer110, an electronic element120, a first flow-path structure160and a fluid material170. The electronic element120is disposed on the circuit layer110and electrically connected to the circuit layer110. The first flow-path structure160includes a first flow path P1, and the electronic element120is disposed in the first flow-path structure160. The fluid material170is disposed in the first flow path P1, and the fluid material170is used for performing heat exchange with the electronic element120, so as to improve the heat dissipation efficiency of the electronic device400. The first flow path P1may be a space surrounded by the first flow-path structure160. The fluid material170may include a thermal conductive material of liquid or gas, such as deionized water, thermal conductive silicone grease, refrigerant, acetone, isopropanol, nitrogen, inert gas, other suitable materials or combinations of the above materials, but not limited herein.

Specifically, in some embodiments, the first flow-path structure160may include a substrate162and a support member164. The substrate162is disposed corresponding to the electronic element120, and the electronic element120is disposed between the substrate162and the circuit layer110. The substrate162may be at least partially overlapped with the electronic element120in the direction Y. The support member164may be disposed at opposite two sides of the electronic element120in the direction X. In some embodiments, the support member164may be disposed at the periphery of the electronic element120. For example, the support member164may be located at the outer side of the electronic element120and annularly surround the electronic element120, but not limited herein. The first flow-path structure160may surround the electronic element120. For example, the support member164is connected to the substrate162and the circuit layer110, so the substrate162and the support member164may surround the electronic element120above the circuit layer110. Through the above design of the first flow-path structure160, the first flow path P1may be formed between the substrate162, the support member164and the electronic element120, and the fluid material170may be disposed in the first flow path P1for performing heat exchange with the electronic element120. In some embodiments, the substrate162and/or the support member164may include thermal conductive materials. For example, the substrate162may include metal, graphene, ceramic, thermal conductive silicone, other suitable materials or combinations of the above materials, and the support member164may include sealant, but not limited herein. In some embodiments, the first flow-path structure160may be a structure formed integrally for surrounding the electronic element120and forming the first flow path P1with the electronic element120. For example, the substrate162and the support member164include the same material and may be formed together, but not limited herein.

In some embodiments, as shown inFIG.7, the circuit layer110may include a plurality of conductive layers112and a plurality of insulating layers114stacked in the direction Y. The connector122of the electronic element120may be electrically connected to the conductive layer112which is the uppermost layer in the circuit layer110through the connection pad140. In addition, the electronic device400may further include a plurality of conductive elements150disposed on one side of the circuit layer110opposite to the electronic element120, and the plurality of conductive elements150may be electrically connected to the circuit layer110, but not limited herein.

Please refer toFIG.8.FIG.8is a partial cross-sectional schematic diagram of an electronic device according to a fifth embodiment of the present disclosure. As shown inFIG.8, an electronic device500according to a fifth embodiment of the present disclosure may include a circuit layer110, an electronic element120, a first flow-path structure160and a fluid material170. The circuit layer110, the electronic element120and the first flow-path structure160may constitute a package unit PU, and one electronic device500may include a plurality of package units PU, but not limited herein. The electronic element120is disposed on the circuit layer110and electrically connected to the circuit layer110. The first flow-path structure160includes a first flow path P1, and the electronic element120is disposed in the first flow-path structure160. Furthermore, the circuit layer110includes an input hole110I and an output hole110T, and the fluid material170may enter the first flow path P1through the input hole110I and exit the first flow path P1through the output hole110T, so that the fluid material170may be disposed in the first flow path P1and exchange heat with the electronic element120by a convection method, thereby improving the heat dissipation efficiency of the electronic device500. Specifically, the input hole110I and the output hole110T of the circuit layer110may penetrate through the circuit layer110, and the input hole110I and the output hole110T may be respectively adjacent to the opposite two sides of the electronic element120when viewed from the top in the direction Y, so that the fluid material170in the first flow path P1may form convection shown by the dotted arrows inFIG.8, thereby performing heat exchange with the electronic element120. In some embodiments, the first flow-path structure160may include a substrate162and a support member164, and the detail structures and materials thereof may be referred to illustration of the previous embodiments, which will not be described redundantly herein.

In some embodiments, as shown inFIG.8, the electronic device500may further include a circuit board180and a second flow-path structure190. The circuit board180is electrically connected to the circuit layer110. For example, the circuit board180may be electrically connected to the circuit layer110through a plurality of conductive elements150, but not limited herein. The circuit board180includes, for example, a printed circuit board, but not limited herein. The second flow-path structure190is disposed on the circuit board180and includes a second flow path P2. The fluid material170may be further disposed in the second flow path P2and surround and cover the package units PU so as to perform heat exchange with the package units PU, and the fluid material170may further enter the first flow path P1through the input hole110I and exit the first flow path P1through the output hole110T, thereby performing heat exchange with the electronic element120.

In some embodiments, the second flow-path structure190may include a substrate192and a support member194. The substrate192may be disposed corresponding to a plurality of package units PU, and the plurality of package units PU are disposed between the substrate192and the circuit board180. The substrate192may be at least partially overlapped with the plurality of package units PU in the direction Y, or the substrate192may cover the plurality of package units PU in the direction Y. The support member194may be disposed at opposite two sides of the plurality of package units PU in the direction X. In some embodiments, the support member194may be disposed at the outer side of all of the package units PU. For example, the support member194may be located at the periphery of all of the package units PU and annularly surround all of the package units PU, but not limited herein. Since the support member194is connected to the substrate192and the circuit board180, the substrate192and the support member194together surround the package units PU disposed between the substrate192and the support member194. Through the above design of the second flow-path structure190, the second flow path P2may be formed between the substrate192, the support member194and the package units PU, and the fluid material170may be disposed in the second flow path P2for performing heat exchange with the package units PU and the electronic elements120in the package units PU. In some embodiments, the substrate192and/or the support member194may include thermal conductive materials. For example, the substrate192may include metal, graphene, ceramic, thermal conductive silicone, other suitable materials or combinations of the above materials, and the support member194may include sealant, but not limited herein. In some embodiments, the second flow-path structure190may be a structure formed integrally for surrounding the package units PU and forming the second flow path P2with the package units PU. For example, the substrate192and the support member194include the same material and may be formed together, but not limited herein.

In some embodiments, as shown inFIG.8, the electronic device500may optionally include a protective layer210, and the protective layer210covers the plurality of connectors122of the electronic element120. The protective layer210may further cover the connection pads140and/or surround the periphery of the electronic element120. The protective layer210may include, for example, epoxy, ceramic, other suitable materials or combinations of the above materials, but not limited herein. In other embodiments, the protective layer210may not be provided in the electronic device500. Specifically, each of the package units PU in the electronic device500may optionally include a protective layer210. The protective layer210may be disposed on the circuit layer110, and the protective layer210may cover a portion of the surface of the circuit layer110, the connection pads140disposed on the circuit layer110, the connectors122of the electronic element120and at least a portion of the surface of the electronic element120(e.g., the side surface of the electronic element120), but not limited herein. In some embodiments, as shown inFIG.8, an upper surface120aof the electronic element120may be exposed from the protective layer210, that is, the upper surface120aof the electronic element120is not covered by the protective layer210. In other embodiments, the protective layer210may cover the upper surface120aof the electronic element120, but not limited herein.

Please refer toFIG.9.FIG.9is a partial cross-sectional schematic diagram of an electronic device according to a sixth embodiment of the present disclosure. As shown inFIG.9, an electronic device600according to a sixth embodiment of the present disclosure may include a circuit layer110, an electronic element120, a first flow-path structure160and a fluid material170. The circuit layer110, the electronic element120and the first flow-path structure160may constitute a package unit PU, and the electronic device600may include a plurality of package units PU, but not limited herein. The electronic element120is disposed on the circuit layer110and electrically connected to the circuit layer110. The first flow-path structure160includes a first flow path P1, and the electronic element120is disposed in the first flow-path structure160. Furthermore, the first flow-path structure160includes an input hole1601and an output hole160T, and the fluid material170may enter the first flow path P1through the input hole1601and exit the first flow path P1through the output hole160T, so that the fluid material170may be disposed in the first flow path P1and exchange heat with the electronic element120by a convection method, thereby improving the heat dissipation efficiency of the electronic device600.

In some embodiments, the first flow-path structure160may include a substrate162, and the substrate162includes the input hole1601and the output hole160T. Specifically, the substrate162is disposed corresponding to the electronic element120, and the electronic element120is disposed between the substrate162and the circuit layer110. The input hole1601and the output hole160T of the substrate162may penetrate through the substrate162, and the input hole1601and the output hole160T may be respectively adjacent to the opposite two sides of the electronic element120when viewed from the top in the direction Y, so that the fluid material170in the first flow path P1may form convection shown by the dotted arrows inFIG.9, thereby performing heat exchange with the electronic element120. In some embodiments, the first flow-path structure160may include the substrate162and a support member164, the substrate162includes the input hole1601and the output hole160T, and the detail structures and materials thereof may be referred to illustration of the previous embodiments, which will not be described redundantly herein.

In some embodiments, as shown inFIG.9, the electronic device600may further include a circuit board180and a second flow-path structure190, and the second flow-path structure190may include a substrate192and a support member194. On the other hand, the electronic device600may optionally include a protective layer210. The detail structures and materials of the above elements may be referred to illustration of the previous embodiments, which will not be described redundantly herein.

From the above description, according to the electronic devices of the embodiments of the present disclosure, the heat transfer efficiency and heat dissipation efficiency of the electronic device may be improved through the structural design of the thermal conducting element, the connection pads, the connectors and/or the conductive elements, or through the structural design of the flow-path structure and the fluid material.

Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the disclosure. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.