Radiator with dotted crosshatch fin pattern

Abstract

The present disclosure generally relates to a heat sink with a dashed crosshatch fin pattern. Various embodiments described herein relate to a heat sink having a base and a plurality of fins extending from the base. Each of the plurality of fins is spaced apart from the other fins in the plurality of fins. The plurality of fins includes a first fin and a second fin. Each of the first fins is perpendicular to any of the second fins.

Description

Technical Field

[0001] The present disclosure relates generally to a heat sink and, more particularly, to a design of fins for a heat sink. Background Art

[0002] An electronic device (e.g., an electronic storage device such as a solid-state drive) is provided with a heat sink to reduce the temperature of the electronic components by induced heat dissipation. For example, a unidirectional heat sink uses air flowing to the heat sink from one direction to dissipate heat, while a bidirectional heat sink uses air flowing to the heat sink from two directions to dissipate heat. An omnidirectional heat sink uses air flowing to the heat sink from any direction to dissipate heat. In unidirectional, bidirectional, and omnidirectional heat sinks, heat is dissipated by air flowing through pins (e.g., columns with a circular or elliptical cross-section) or fins (flat rectangular cuboids) of the heat sink. In order to provide a larger air passage for the airflow, the pins or fins in conventional heat sinks have a smaller surface area. In addition, with respect to the design of the pins, the curvature of the pin surface reduces the heat dissipation rate in the direction where the airflow is thinner. Summary of the Invention

[0003] In certain aspects, the present disclosure relates to embodiments of a heat sink comprising a base having a reference line and a plurality of fins extending from the base. The plurality of fins comprises a first fin and a second fin. Each of the first fins is angled at X° relative to the reference line. Each of the second fins is angled at -X° relative to the reference line. In some examples, X° is 45° and -X° is -45°.

[0004] In certain aspects, the present disclosure relates to embodiments of a heat sink comprising a base and a plurality of fins extending from the base. Each of the plurality of fins is spaced apart from the other fins in the plurality of fins. The plurality of fins comprises a first fin and a second fin. Each of the first fins is perpendicular to any one of the second fins. Each of the second fins is perpendicular to any one of the first fins.

[0005] In certain aspects, the present disclosure relates to embodiments of a heat sink configuration, comprising a first heat sink and a second heat sink. The first heat sink comprises a first substrate having a first surface facing a first direction and a plurality of first fins extending from the first surface in the first direction. Each of the plurality of first fins is spaced apart from the other first fins in the plurality of first fins. The plurality of first fins form a first dashed crosshatch pattern. The second heat sink comprises a second substrate having a second surface facing a second direction. The first direction is opposite to the second direction. The second heat sink comprises a plurality of second fins extending from the second surface in the second direction. Each of the plurality of second fins is spaced apart from the other second fins in the plurality of second fins. The plurality of second fins form a second dashed crosshatch pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a perspective view of a heat sink according to some embodiments;

[0007] Figure 2 is a top view of a heat sink according to some embodiments;

[0008] Figure 3 is a bottom view of a heat sink according to some embodiments;

[0009] Figure 4 is a side view of a heat sink according to some embodiments;

[0010] Figure 5 is a front view or a rear view of a heat sink according to some embodiments; and

[0011] Figure 6 is a perspective view of a heat sink configuration according to some embodiments. DETAILED DESCRIPTION

[0012] Among other aspects, the present disclosure relates to a heat sink with a dashed crosshatch fin pattern. Specifically, the heat sink includes a base having a plurality of fins arranged thereon. The plurality of fins are separated from one another when all connected to the base. Because the fins are separated from one another, spaces or gaps are formed between the fins. These spaces and gaps form air channels through which air can flow.

[0013] The wing comprises a plurality of first winglets and a plurality of second winglets. Each of the first winglets is parallel to and / or aligned with the other first winglets (on the same line or plane as the other first winglets), but is not parallel to and / or aligned with any of the second winglets. Each of the second winglets is parallel to and / or aligned with the other second winglets (on the same line or plane as the other second winglets), but is not parallel to and / or aligned with any of the first winglets. The first winglets are arranged in a first orientation at an X° angle relative to a reference line or a line parallel thereto. The second winglets are arranged in a second orientation at a -X° angle relative to a reference line or a line parallel thereto. In some instances, X° is 45°, and -X° is -45°. When viewed vertically, multiple groups of first winglets form a line similar to a dotted line. The multiple first winglets are similar to a set of parallel dotted lines, each line offset relative to the adjacent line. In some instances, the offset aligns the winglets in the alternating rows of first winglets. Multiple groups of second winglets form a line perpendicular to the line formed by the first winglets and are similar to a dotted line when viewed vertically. The plurality of second fins are similar to a set of parallel imaginary lines, each line being offset relative to the immediately adjacent line. In some examples, the offset is such that the fins in the alternating rows of second fins are aligned.

[0014] The orientation of the fins (e.g., a first orientation for a first fin and a second orientation for a second fin) and the separation of the fins form a two-dimensional array, similar to a dashed crosshatch fin pattern. A heat sink with a dashed crosshatch fin pattern is an omnidirectional heat sink, meaning air from any direction relative to the heat sink can flow through the air channels formed by the fins to dissipate heat. Changes in airflow have minimal or no effect on the heat dissipation characteristics or capabilities of the heat sink.

[0015] Figure 1 is a perspective view of a heat sink 100 according to some embodiments. Figure 2 is a top view of a heat sink 100 according to some embodiments. Figure 3 is a bottom view of heat sink 100 according to some embodiments. Figure 4 is a side view of a heat sink 100 according to some embodiments. Figure 5 is a front view or a rear view of the heat sink 100 according to some embodiments. Figure 1-5 The heat sink 100 is made of a metal material (eg, aluminum, copper, etc.) or a metal alloy material (eg, aluminum alloy, copper alloy, etc.), diamond, or another material having high thermal conductivity.

[0016] The heat sink 100 includes a base 106 and fins (eg, a first fin 102 and a second fin 104). The base 106 includes edge portions 108a-108d and a center portion 109 surrounded by the edge portions 108a-108d.

[0017] As shown, the fins (e.g., first fin 102 and second fin 104) are raised protrusions or extensions extending from base 106, including from center portion 109 and from edge portions 108a-108d. The fins are arranged in a dotted crosshatch fin pattern to direct airflow from all directions while maximizing the total surface area of ​​the fins exposed. To this end, the fins include first fin 102 and second fin 104 forming such a dotted crosshatch fin pattern.

[0018] Each of the first wing 102 and the second wing 104 has the shape of a rectangular parallelepiped or a portion thereof. Each of the first wing 102 and the second wing 104 has a front surface, a rear surface, two side surfaces and a top surface. The top surface of each of the first wing 102 and the second wing 104 faces away from the base 106, for example, facing a direction perpendicular to the base 106 (for example, the Z direction). In some instances, the top surfaces of the first wing 102 and the second wing 104 are coplanar, and the top surfaces of all the first wing 102 and the second wing 104 are parallel to the central portion 109. As shown in the figure, in some instances, the first wing 102 and the second wing 104 extend to the same height relative to the central portion 109. The wing length is the length of each wing along or parallel to the direction perpendicular to the central portion 109 (for example, the Z direction). If some of the first and second fins 102, 104 extend from edge portions 108a-108d that are convex or inclined relative to the center portion 109, the fin length of each of the first and second fins 102, 104 extending from at least a portion of the edge portions 108a-108d may be different. On the other hand, the fin length of each of the first and second fins 102, 104 extending completely from the center portion 109 is constant. In other examples (not shown), the first and second fins 102, 104 extend to different heights relative to the center portion 109, and the top surfaces of all the first and second fins 102, 104 are not coplanar. The ends of each of the first and second fins 102, 104 are connected to the base 106 (e.g., to the center portion 109 and the edge portions 108a-108d).

[0019] The front, rear, and side surfaces of each of the first and second fins 102, 104 are perpendicular to at least a portion of the base 106 (e.g., the center portion 109). Thus, the first and second fins 102, 104 appear to extend in a direction perpendicular to or orthogonal to the center portion 109. The area of ​​the front or rear surface of each fin is greater than the area of ​​each of the two side surfaces. Thus, each of the first and second fins 102, 104 appears to be a thin "fin" or rectangular plate. In some examples, the front and rear surfaces of each of the first and second fins 102, 104 are flat (uncurved). Therefore, each of the first and second fins 102, 104 is a straight fin without a curve, thereby achieving improved heat dissipation compared to conventional posts / pins with curved surfaces. In other examples, the front and / or rear surfaces of each of the first and second fins 102, 104 are curved or serrated.

[0020] As shown, the first fin 102 and the second fin 104 are separate and spaced apart from each other. In some instances, the fins 102 and 104 are equidistant. For example, the distance between two adjacent parallel first fins in the first fin 102 is the same as the distance between two other adjacent parallel first fins in the first fin 102. The distance between two adjacent aligned first fins in the first fin 102 is the same as the distance between two other adjacent aligned first fins in the first fin 102. The distance between two adjacent parallel second fins in the second fin 104 is the same as the distance between two other adjacent parallel second fins in the second fin 104. The distance between two adjacent aligned second fins in the second fin 104 is the same as the distance between two other adjacent aligned second fins in the second fin 104. Because the first fin 102 and the second fin 104 are separate and spaced apart from each other, a space or gap is formed between the first fin 102 and the second fin 104. Such space and gap form an air channel through which air can flow. Specifically, air flowing from any direction toward the heat sink 100 is directed through such air passages by the first fins 102 and the second fins 104 in the manner described.

[0021] In some examples, the direction or orientation of each of the first fin 102 and the second fin 104 corresponds to the direction in which the front and rear surfaces of each of the first fin 102 and the second fin 104 extend or the orientation of the front and rear surfaces of each of the first fin 102 and the second fin 104. Under the condition that the front and rear surfaces of each of the first fin 102 and the second fin 104 have the largest surface area, heat dissipation occurs mainly on the front and rear surfaces by convection, wherein the area of ​​the side surfaces is smaller, making each of the first fin 102 and the second fin 104 thinner to provide a path for airflow. In some examples, the direction or orientation of each of the first fin 102 and the second fin 104 corresponds to the direction or orientation of each of the first fin 102 and the second fin 104 when viewed from a direction perpendicular to the surface of the central portion 109, for example, Figure 2 shown.

[0022] In some examples, a reference line is defined relative to substrate 106. The reference line can be any line that traverses any portion of substrate 106. In some examples, the reference line is parallel to or on a surface of substrate 106 (e.g., the surface of center portion 109). Figure 2 In some examples (shown in FIG), the reference line is parallel to two opposite sides having a rectangular shape (e.g., as shown in FIG). Figure 2 The edge portions 108c and 108d are perpendicular to the other two opposite sides having a rectangular shape (e.g., Figure 2 The base 106 has a generally rectangular shape (when viewed from a direction normal to the surface of the central portion 109, as shown in FIG. Figure 2 In some examples (shown in FIG), the reference line may be on any edge or side of the rectangular shape (e.g., an outer edge of any of the edge portions 108a-108d, as shown in FIG). Figure 2 shown).

[0023] As shown in the figures (especially Figure 2 ), each of the first fins 102 forms an angle of X° relative to a reference line. That is, the front and rear surfaces of each of the first fins 102 extend in a direction that forms an angle of X° relative to the reference line (e.g., the outer edge of the edge portion 108d). On the other hand, each of the second fins 104 forms an angle of -X° relative to the reference line. That is, the front and rear surfaces of each of the second fins 104 extend in a direction that forms an angle of -X° relative to the reference line (e.g., the outer edge of the edge portion 108d).

[0024] In the examples shown in the figures, X is 45. In this case, each of the first fins 102 is perpendicular to each of the second fins 104, and vice versa. That is, the front and rear surfaces of each of the first fins 102 are perpendicular to (e.g., at a 90° angle relative to) the front and rear surfaces of each of the second fins 104. In other examples (not shown), X can be a suitable number, such as, but not limited to, 30, 50, 60, etc.

[0025] The fin spacing / separation and different orientations of the first fins 102 and second fins 104 form a dashed, crosshatch fin pattern. As described, each of the first fins 102 is separated from any of the second fins 104, and vice versa. Each of the first fins 102 is separated from any other first fin in the first fins 102, and each of the second fins 104 is separated from any other second fin in the second fins 104. Spaces or gaps exist between the first fins 102 and the second fins 104 through which air can flow. Given the angles of the first fins 102 and the second fins 104 as described herein, the fins of the heat sink 100 form a dashed, crosshatch fin pattern.

[0026] Specifically, the term "dashed line" means that the aligned fins are separated from each other. If two fins appear to be on the same line (when viewed from a direction normal to the surface of the central portion 109, such as Figure 2 winglets are aligned if their front surfaces are in the same plane, or if their rear surfaces are in the same plane. One of the first winglets 102 may be aligned with one or more other first winglets 102, but not with any of the second winglets 104. One of the second winglets 104 may be aligned with one or more other second winglets 104, but not with any of the first winglets 102.

[0027] like Figure 1 and 2 As shown in , where X is 45, a group of aligned first fins 102 may form a first imaginary line (e.g., distributed along a first row). In some examples, the group of first fins 102 is evenly distributed along the first row (adjacent first fins in the group of first fins 102 are spaced the same distance apart). Another group of aligned first fins 102 may form a second imaginary line (e.g., distributed along a second row). In some examples, the other group of first fins 102 is also evenly distributed along the second row. The first imaginary line (first row) and the second imaginary line (second row) are parallel. Figure 1 and 2Further shown is a group of second fins 104 forming a third dotted line (e.g., distributed along the third row). In some instances, this group of second fins 104 is also evenly distributed along the third row. Another group of second fins 104 forms a fourth dotted line (e.g., distributed along the fourth row). The third dotted line (third row) and the fourth dotted line (fourth row) are parallel. In addition, as shown in the figure, the first and second dotted lines are perpendicular to each of the third and fourth dotted lines. The first and second rows are perpendicular to each of the third and fourth rows. In some instances, the line along which some of the first fins 102 are distributed intersects with two or more of the second fins 104. In some instances, the line along which some of the second fins 104 are distributed intersects with two or more of the first fins 102. As shown in the figure, one of the second fins 104 is between two adjacent first fins in the first fin 102. One of the first fins 102 is between two adjacent second fins in the second fin 104. For example, at least one of the front or rear surfaces of each of the first fins 102 faces one side surface of one of the second fins 104. At least one of the front or rear surfaces of each of the second fins 104 faces one side surface of one of the first fins 102.

[0028] In some instances, the orientation of the first fins 102 and the second fins 104 extending from the edge portions 108a-108d (e.g., a dashed crosshatch fin pattern), and particularly the orientation of those of the first fins 102 and the second fins 104 on the outer edges of the edge portions 108a-108d, allows air from any direction relative to the heat sink 100 (e.g., airflow directions 101a-101d and other directions not shown) to flow toward the first fins 102 and the second fins 104 extending from the center portion 109. For example, by using some of the first fins 102 and the second fins 104 to provide openings along the outer edges of the edge portions 108c and 108d and using other some of the first fins 102 and the second fins 104 to provide openings along the outer edges of the edge portions 108a and 108b, airflow from any direction relative to the heat sink (e.g., airflow directions 101a-101d and other directions not shown) can be redirected toward the center portion 109 without obstruction.

[0029] On the other hand, a conventional heat sink with fins angled at 90° (rather than 45°) to the outer edges of a rectangular heat sink may allow air to flow into the center portion of the heat sink in a first direction, but significantly block air from flowing into the center portion in a second direction. To reduce blockage, a pin / post design with a lower heat dissipation rate has conventionally been used. The features disclosed herein allow air to flow into the heat sink from any direction while providing a maximum amount of surface area (e.g., the front and rear surfaces of each of the first fin 102 and the second fin 104) for a faster heat dissipation rate.

[0030] like Figure 2 As shown, air (e.g., air from the airflow direction 101d) may flow in a Z-shaped path through the air channel formed by the front and rear surfaces of the first and second fins 102, 104. The air flows in a Z-shaped path through the front and rear surfaces of the first and second fins 102, 104, thereby dissipating heat by convection. Figure 2 As shown, air flowing to the front or rear surface of one of the second fins 104 is redirected to the front or rear surface of one or more adjacent fins of the first fin 102 and the second fin 104 , and so on.

[0031] In some examples, edge portions 108a-108d are peripheral flanges in base 106 that are tilted upward to form ventilation holes. For example, edge portion 108a is the front portion that forms front vent 120a. Edge portion 108b is the rear portion that forms rear vent 120b. Edge portions 108c and 108d are side portions that form side vents 120c and 120d, respectively. In some embodiments, air carrying heat from electronic components (e.g., chips) coupled to radiator 100 can flow out of the housing formed by radiator 100 through ventilation holes 120a-120d. In some examples, such air can flow into fins 102 and 104 of radiator 100. In some examples, vents 120a-120d are vents through which air in airflow directions 101a-101d (and other airflow directions not shown) flows into the electronic components (into the housing formed by the heat sink), directly toward the electronic components to dissipate heat directly by convection. Thus, heat sink 100 allows electronic components to dissipate heat indirectly through fins 102 and 104 and directly by convection.

[0032] The electronic components may be coupled to the back side of the substrate 106 via a suitable thermal insulation material (TIM). Figure 3104 extend from the side of substrate 106. In one example, a silicon die or chip is coupled or attached to a backplane, which is attached to the TIM. The TIM is attached to the backside of substrate 106 and transfers heat from the silicon die or chip to substrate 106 via conduction. The heat is then transferred from the substrate to fins 102 and 104 for dissipation.

[0033] Figure 6 is a perspective view of a heat sink configuration according to some embodiments. Figure 1-6 , the heat sink configuration corresponds to the housing 600 formed by the first heat sink 610 and the second heat sink 630. Each of the first heat sink 610 and the second heat sink 630 is a heat sink such as, but not limited to, the heat sink 100.

[0034] For example, the first heat sink 610 includes a first substrate (e.g., substrate 106) having a first surface facing a first direction (e.g., the Z direction). The first heat sink 610 includes a plurality of first fins (e.g., fins 102 and 104) extending from the first surface in the first direction. Each of the first fins is spaced apart from the other first fins in the first heat sink. The first fins form a first dashed crosshatch pattern in the manner described.

[0035] The second heat sink 630 includes a second substrate (e.g., substrate 106) having a second surface facing a second direction (e.g., the -Z direction). The first direction is opposite to the second direction. The second heat sink 630 includes a plurality of second fins (e.g., fins 102 and 104) extending from the second surface in the second direction. Each of the second fins is spaced apart from the other second fins. The second fins form a second dashed crosshatch pattern in the manner described.

[0036] An electronic component (e.g., chip 620) is enclosed by a first heat sink 610 and a second heat sink 630. Chip 620 is coupled to the backsides of the first and second substrates of heat sinks 610 and 630 via a suitable TIM. The TIM is attached to the backsides of the first and second substrates and transfers heat from chip 620 to the first and second substrates via conduction. The heat is then transferred from the first and second substrates to the fins of heat sinks 610 and 630 for dissipation.

[0037] In addition, the housing formed by the heat sinks 610 and 630 can form ventilation holes similar to the ventilation holes 120a-120d, which allow air carrying heat generated by the chip 620 to be discharged and allow air from the airflow directions 101a-101d (and other airflow directions not shown) to flow into the housing, so that when the chip 620 is enclosed by the housing, the heat is dissipated directly from the electronic devices on the chip 620 by convection.

[0038] The previous description is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applicable to other aspects. Therefore, the appended claims are not intended to be limited to the aspects shown herein, but should be given a full scope consistent with the language of the appended claims, wherein mentioning an element in the singular is not intended to mean "there is and only one" (unless specifically stated), but rather "one or more". Unless specifically stated otherwise, the term "some" refers to one or more. All structural and functional equivalents of the elements of the various aspects described throughout the previous description that are known or will become known to those skilled in the art are expressly incorporated herein by reference and are intended to be covered by the appended claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether this disclosure is explicitly stated in the claims. No claim element will be interpreted as a means plus function unless the element is explicitly stated using the phrase "member for..."

[0039] It should be understood that the specific order or hierarchy of steps in the disclosed processes is an example of an illustrative approach. It should be understood that based on design preferences, the specific order or hierarchy of steps in the process may be rearranged while remaining within the scope previously described. The accompanying method claims present elements of the various steps in a sample order and are not meant to be limited to the specific order or hierarchy presented.

[0040] The preceding description of the disclosed embodiments is provided to enable one skilled in the art to make or use the disclosed subject matter. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the preceding description. Therefore, the preceding description is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0041] The various examples shown and described are provided merely as examples to illustrate the various features of the appended claims. However, the features shown and described with respect to any given example are not necessarily limited to the associated example and may be used or combined with other examples shown and described. Furthermore, the claims are not intended to be limited by any one example.

[0042] The foregoing method descriptions and process flow diagrams are provided merely as illustrative examples, and they are not intended to require or imply that the steps of the various examples must be performed in the order presented. As will be appreciated by those skilled in the art, the order of the steps in the foregoing examples may be performed in any order. Phrases such as "afterwards," "subsequently," and "next" are not intended to limit the order of the steps; these words are merely used to guide the reader through the description of the method. Additionally, for example, any reference to a claim element in the singular using the articles "a," "an," or "the" should not be construed as limiting the element to the singular.

[0043] The various illustrative logical blocks, modules, circuits, and algorithmic steps described in conjunction with the examples disclosed herein can be implemented as electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability of hardware and software, the various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art may implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

[0044] The preceding description of the disclosed examples is provided to enable one skilled in the art to make or use the present disclosure. Various modifications to these examples will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to some examples without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the examples shown herein but is to be accorded the widest scope consistent with the appended claims and the principles and novel features disclosed herein.

Claims

1. A radiator, comprising: a substrate having a reference line; a plurality of fins extending from the base, each of the plurality of fins having a length and a width, the plurality of fins including a first fin and a second fin, wherein the first flap comprises a first alternating pattern of a plurality of the first flaps and a plurality of first spaces between the plurality of the first flaps, all of the first flaps in the first alternating pattern having their lengths arranged along a first row, and wherein the second flap comprises a second alternating pattern of a plurality of second flaps and a plurality of second spaces between the plurality of second flaps, all of the second flaps in the second alternating pattern having their lengths arranged along a second row, and wherein one of the first fins occupies the base in each of the plurality of second spaces and extends from the base in each of the plurality of second spaces, and one of the second fins occupies the base in each of the plurality of first spaces and extends from the base in each of the plurality of first spaces, and Each of the first fins forms an angle of X° relative to the reference line, and each of the second fins forms an angle of -X° relative to the reference line. 2 . The heat sink of claim 1 , wherein the plurality of fins extend from the base in a vertical direction.

3. The heat sink according to claim 1, wherein The air passages between the plurality of fins are formed as a result of each of the plurality of fins being spaced apart from the other fins of the plurality of fins; Air flowing toward the heat sink from any direction is guided through the air passage by the plurality of fins. The heat sink of claim 3 , wherein the air flow through the air channel is directed along a Z-shaped path.

5. The heat sink according to claim 3, wherein A first group of said first fins are distributed along a first row; A second group of said first fins are distributed along a second row; and The first row and the second row are parallel.

6. The heat sink according to claim 3, wherein A first group of said second fins are distributed along a first row; A second group of said second fins are distributed along a second row; and The first row and the second row are parallel.

7. The heat sink according to claim 3, wherein a group of said first fins distributed along a first row; A set of said second fins are distributed along the second row; and The first row and the second row are perpendicular.

8. The heat sink according to claim 7, wherein the first row intersects two or more of the second tabs; and The second row intersects two or more of the first tabs.

9. The heat sink according to claim 1, wherein Each of the plurality of fins includes a front surface, a rear surface, and two side surfaces; The front surface, the rear surface, and the side surfaces are perpendicular to at least a portion of the substrate; and An area of ​​the front surface or an area of ​​the rear surface is larger than an area of ​​each of the two side surfaces.

10. The heat sink of claim 9, wherein the front surface and the rear surface are flat. 11 . The heat sink of claim 9 , wherein at least one of the front surface or the rear surface of each of the first fins is perpendicular to at least one of the front surface or the rear surface of each of the second fins. 12 . The heat sink according to claim 9 , wherein at least one of the front surface or the rear surface of each of the first fins faces one of the side surfaces of one of the second fins.

13. The heat sink of claim 1, wherein X° is 45°.

14. The heat sink of claim 1, wherein each of the first fins is perpendicular to any one of the second fins.

15. The heat sink of claim 1, wherein the reference line is parallel to or on a surface of the substrate.

16. The heat sink according to claim 1, wherein The base has a rectangular shape; and The reference line is parallel to or on a side surface of the heat sink.

17. The heat sink according to claim 1, further comprising a front portion forming a front vent; a rear portion forming the rear vents; two side portions each forming a side vent; as well as A raised surface is parallel to at least a portion of the substrate, the raised surface forming one or more cavities.

18. The heat sink according to claim 1, wherein One of the second fins is between two adjacent ones of the first fins; and One of the first fins is between two adjacent ones of the second fins.

19. A radiator comprising: substrate; a plurality of fins extending from the base, each of the plurality of fins being spaced apart from the other fins of the plurality of fins and having a length and a width, the plurality of fins including a first fin and a second fin, each of the first fins being perpendicular to any one of the second fins, wherein the first flap comprises a first alternating pattern of a plurality of the first flaps and a plurality of first spaces between the plurality of the first flaps, all of the first flaps in the first alternating pattern having their lengths arranged along a first row, and wherein the second flap comprises a second alternating pattern of a plurality of second flaps and a plurality of second spaces between the plurality of second flaps, all of the second flaps in the second alternating pattern having their lengths arranged along a second row, and wherein one of the first wings occupies the base in each of the plurality of second spaces and extends from the base in each of the plurality of second spaces, and one of the second wings occupies the base in each of the plurality of first spaces and extends from the base in each of the plurality of first spaces.

20. A heat sink arrangement comprising: The first radiator comprises: a first substrate having a first surface facing a first direction; a plurality of first fins extending from the first surface in the first direction, each of the plurality of first fins being spaced apart from other first fins of the plurality of first fins and having a length and a width, the plurality of first fins forming a first dashed crosshatch pattern, wherein the first heat sink comprises a first alternating pattern of a plurality of first directional fins and a plurality of first spaces between the plurality of first directional fins, all of the first directional fins in the first alternating pattern having their lengths arranged along a first row, and wherein the first heat sink comprises a second alternating pattern of a plurality of second directional fins and a plurality of second spaces between the plurality of second directional fins, all of the second directional fins in the second alternating pattern having their lengths arranged along a second row, and wherein one of the first directional tabs occupies the base in each of the plurality of second spaces and extends from the base in each of the plurality of second spaces, and one of the second directional tabs occupies the base in each of the plurality of first spaces and extends from the base in each of the plurality of first spaces; and The second radiator comprises: a second substrate having a second surface facing a second direction, the first direction being opposite to the second direction; A plurality of second fins extend from the second surface in the second direction, each of the plurality of second fins being spaced apart from other second fins of the plurality of second fins, the plurality of second fins forming a second dashed crosshatch pattern.

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