Thermal compression bonding head
By incorporating a partial contact design with hollowed-out and protruding sections between the insulation block and the base, combined with detachable connections and heat dissipation holes, the problem of poor insulation performance caused by a large contact area between the insulation block and the base is solved, achieving more efficient insulation performance and heat management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU ZHAOHENG ZHONGLI PRECISION MACHINERY CO LTD BEIJING BRANCH
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, the connection between the heat insulation block and the base is a complete fit, resulting in a large contact area and poor heat insulation effect.
The heat insulation block has a hollowed-out part and a protruding part on the side facing the base, so that it only makes partial contact with the base at the protruding part. The hollowed-out part forms a gap to reduce the contact area. Combined with the detachable connection structure and heat dissipation hole design, the heat insulation performance is improved.
It significantly reduces heat conduction efficiency, reduces heat loss, improves the insulation performance of the insulation block, and protects the base and downstream components.
Smart Images
Figure CN224528134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bonding equipment, and in particular to a hot-press bonding head. Background Technology
[0002] Thermocompression bonding technology is one of the key processes in microelectronic packaging, semiconductor manufacturing, and advanced electronic assembly. It is a solid-state bonding process that combines heat and force to cause plastic deformation between two thin sheets, forming a clean surface with close contact. The thermocompression bonding head is the core component of thermocompression bonding technology, and its performance directly determines the bonding quality, efficiency, and yield.
[0003] The hot-press bonding head mainly consists of a heating element, a heat insulation block, and a base. The heating element is responsible for providing a precise and controllable heat source to achieve rapid heating of the bonding area and maintain the required temperature uniformity and stability. The heat insulation block can block heat from being transferred from the high-temperature heating element to the downstream base to the maximum extent, reducing heat loss and improving thermal efficiency.
[0004] However, in existing technologies, the connection between the heat insulation block and the base is usually achieved by direct, large-area flat bonding and fixing. Specifically, the entire side of the heat insulation block facing the base will be completely and tightly bonded to the corresponding mounting surface on the base. Due to the large contact area between the base and the heat insulation block, the heat insulation effect of the heat insulation block is poor at this time. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a hot-press bonding head to solve the technical problem in the prior art that the base and the heat insulation block are completely bonded, the contact area is large, and the heat insulation effect is poor.
[0006] This utility model provides a hot-press bonding head, including a base and a heat insulation block. The heat insulation block has a hollow part and a protrusion on the side facing the base, wherein there is a gap between the hollow part and the base, and the protrusion is fitted to the base.
[0007] Optionally, the protrusion includes a first component and a second component, wherein the first component is disposed at the center of the heat insulation block on the side facing the base, the second component is disposed on the periphery of the heat insulation block on the side facing the base, and the hollow portion is located between the first component and the second component.
[0008] Optionally, the cutout extends toward the second component until it penetrates the sidewall of the heat insulation block.
[0009] Optionally, at least four of the second components are provided, and they are located at the four corners of the side of the heat insulation block facing the base.
[0010] Optionally, the protrusion is provided with a plurality of through holes.
[0011] Optionally, the base has multiple grooves, which are located on the side of the base facing the heat insulation block.
[0012] Optionally, a first connecting portion is provided on the side wall of the base, and a second connecting portion corresponding to the first connecting portion is provided on the side wall of the heat insulation block, wherein the first connecting portion and the second connecting portion are detachably connected.
[0013] Optionally, it also includes a pipe connector, which is disposed on the base. The base has a first heat dissipation hole and the heat insulation block has a second heat dissipation hole. One end of the first heat dissipation hole is connected to the pipe connector and the other end is connected to the second heat dissipation hole. The pipe connector is used to sequentially introduce heat dissipation airflow into the first heat dissipation hole and the second heat dissipation hole.
[0014] Optionally, the second heat dissipation hole is disposed on the protrusion.
[0015] Optionally, it also includes a heating element disposed on the side of the heat insulation block facing away from the base and connected to the heat insulation block.
[0016] The technical solution of this utility model has the following advantages: The thermosetting bonding head provided by this utility model has a protrusion and a hollow part on the side of the heat insulation block facing the base. This makes the heat insulation block and the base only partially in contact at the protrusion, while the hollow part forms a gap with the base. This greatly reduces the contact area between the heat insulation block and the base, significantly reducing the heat conduction efficiency from the heat insulation block to the base through the contact surface. This improves the heat insulation performance of the heat insulation block, effectively reduces heat loss, and protects the base and downstream components. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the thermo-press bonding head of this utility model; Figure 2 This is an exploded view of the structure between the base and the heat insulation block in this utility model; Figure 3 This is a schematic diagram of the bottom structure of the heat insulation block in this utility model.
[0019] Explanation of reference numerals in the attached figures: 1. Base; 2. Heat insulation block; 3. Hollowed-out part; 4. Protrusion; 41. First component; 42. Second component; 5. Through hole; 6. Groove; 7. First connecting part; 8. Second connecting part; 9. Pipe connector; 10. First heat dissipation hole; 11. Second heat dissipation hole; 12. Heating element. Detailed Implementation
[0020] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0021] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.
[0022] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.
[0024] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.
[0025] Example 1 Reference Figures 1-3 As shown, this utility model provides a hot-press bonding head, including a base 1 and a heat insulation block 2. Both the base 1 and the heat insulation block 2 are made of composite materials with low coefficient of thermal expansion. The heat insulation block 2 is provided with a hollow part 3 and a protrusion 4 on the side facing the base 1. A gap is left between the hollow part 3 and the base 1. The protrusion 4 is attached to the side of the base 1 facing the heat insulation block 2.
[0026] By providing a protrusion 4 and a hollow portion 3 on the side of the heat insulation block 2 facing the base 1, the heat insulation block 2 and the base 1 only make partial contact at the protrusion 4, while the hollow portion 3 forms a gap with the base 1. The contact area between the heat insulation block 2 and the base 1 is greatly reduced, which significantly reduces the heat conduction efficiency from the heat insulation block 2 to the base 1 through the contact surface, improves the heat insulation performance of the heat insulation block 2, effectively reduces heat loss and protects the base 1 and downstream components.
[0027] As one specific implementation method, refer to Figure 1 and Figure 2 As shown, in order to connect the base 1 and the heat insulation block 2, a first connecting part 7 is integrally formed on the side wall of the base 1 facing the heat insulation block 2, and a second connecting part 8 corresponding to the first connecting part 7 is integrally formed on the side wall of the heat insulation block 2 facing the base 1. There are two of each of the first connecting parts 7 and the second connecting parts 8. The two first connecting parts 7 are symmetrically arranged about the base 1, and the two second connecting parts 8 are symmetrically arranged about the heat insulation block 2. When the base 1 and the heat insulation block 2 are installed, the two first connecting parts 7 and the two second connecting parts 8 are arranged one-to-one, and the corresponding first connecting parts 7 and second connecting parts 8 are detachably connected by bolts. The detachable connection facilitates the installation, disassembly and replacement of the heat insulation block 2, and avoids the connection on the bottom surface of the heat insulation block 2 or the top surface of the base 1. The connection point is set on the side wall, rather than on the main heat conduction path, which is conducive to maintaining good heat insulation performance.
[0028] As one specific implementation method, refer to Figure 1 and Figure 3 As shown, the protrusion 4 includes a first component 41 and a second component 42, both of which are integrally formed with the heat insulation block 2. The first component 41 is located at the center of the side of the heat insulation block 2 facing the base 1 and is X-shaped. The second component 42 is located on the periphery of the side of the heat insulation block 2 facing the base 1. The hollow portion 3 is located between the first component 41 and the second component 42. The protrusion 4 further defines the central first component 41 and the peripheral second component 42, so that the central first component 41 provides the main load-bearing force, and the peripheral second component 42 provides the edge load-bearing force. The first component 41 and the second component 42 together provide the load-bearing force for the heat insulation block 2, while the hollow portion 3 located between the first component 41 and the second component 42 minimizes the contact area between the heat insulation block 2 and the base 1, ensuring the stability of the heat insulation block 2 while minimizing the contact area, thus achieving a balance between structural strength and heat insulation effect.
[0029] Furthermore, the second component 42 has four supports located at the four corners of the side of the heat insulation block 2 facing the base 1. This symmetrical distribution ensures that when the heat insulation block 2 is installed on the base 1, the support points are evenly distributed at the four most stable corners. This provides stable support while minimizing the contact area with the base 1, further optimizing the heat insulation effect. Simultaneously, the perforated portion 3 extends into the second component 42 until it penetrates the side wall of the heat insulation block 2. This perforated portion 3 allows some external airflow to pass through, thus more effectively removing locally accumulated heat and further improving the overall heat insulation and heat dissipation performance.
[0030] As another implementation method, refer to Figure 1 and Figure 2 As shown, the heat insulation block 2 has through holes 5, and there are multiple through holes 5. All through holes 5 are located on the protrusion 4. Specifically, the through holes 5 are located on the first component 41. By setting the through holes 5, the actual contact area between the protrusion 4 and the base 1 can be directly reduced, thereby further improving the heat insulation performance. Furthermore, the base 1 has multiple grooves 6, which are located on the side of the base 1 facing the heat insulation block 2. There are four grooves 6, which are arranged in a diamond pattern on the base 1. The grooves 6 are symmetrically arranged on the base 1, which can further reduce the contact area between the base 1 and the heat insulation block 2 and improve the heat insulation effect.
[0031] As another implementation method, refer to Figure 1 and Figure 3 As shown, the hot-press bonding head also includes a pipe connector 9, which is disposed and connected to the side wall of the base 1. The base 1 has a first heat dissipation hole 10, and the heat insulation block 2 has a second heat dissipation hole 11. The second heat dissipation hole 11 penetrates the top and bottom walls of the heat insulation block 2. One end of the first heat dissipation hole 10 is connected to the pipe connector 9, and the other end extends towards the heat insulation block 2 until it connects with the second heat dissipation hole 11. The pipe connector 9 is used to sequentially introduce the heat dissipation airflow into the first heat dissipation hole 10 and the second heat dissipation hole 11. The first heat dissipation hole 10 and the second heat dissipation hole 11 can form a connected heat dissipation channel. External cooling airflow is introduced through the pipe connector 9. The airflow flows through the first heat dissipation hole 10 and the second heat dissipation hole 11 at a time, thereby forcibly carrying away the heat accumulated inside the heat insulation block 2 and discharging it out of the heat insulation block 2, thus improving the heat insulation and heat dissipation effect of the heat insulation block 2.
[0032] Furthermore, the second heat dissipation hole 11 is set on the first component 41 on the protrusion 4. Since the protrusion 4 is the key area for direct contact and heat transfer between the heat insulation block 2 and the base 1, and is also the area where heat is most easily conducted from the heat insulation block 2 to the base 1, the second heat dissipation hole 11 is directly opened on the protrusion 4, so that the heat dissipation airflow can flow precisely through the contact point area and carry away the heat. At the same time, it can also reduce the contact area between the protrusion 4 and the base 1 and improve the heat insulation performance.
[0033] As one specific implementation method, refer to Figure 1 As shown, it also includes a heating element 12, which is disposed and detachably connected to the side of the heat insulation block 2 facing away from the base 1. When powered on, the heating element 12 can generate heat to hot press the workpiece being processed.
[0034] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0035] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A thermocompression bonding head, characterized in that, It includes a base (1) and a heat insulation block (2). The heat insulation block (2) has a hollow part (3) and a protrusion (4) on the side facing the base (1). There is a gap between the hollow part (3) and the base (1), and the protrusion (4) fits into the base (1).
2. The thermocompression bonding head as described in claim 1, characterized in that, The protrusion (4) includes a first component (41) and a second component (42), wherein the first component (41) is disposed at the center of the heat insulation block (2) on the side facing the base (1), and the second component (42) is disposed on the periphery of the heat insulation block (2) on the side facing the base (1), and the hollow part (3) is located between the first component (41) and the second component (42).
3. The thermocompression bonding head as described in claim 2, characterized in that, The hollow part (3) extends toward the second component (42) until it penetrates the side wall of the heat insulation block (2).
4. The thermocompression bonding head as described in claim 2, characterized in that, The second component (42) is provided in at least four parts, and is located at the four corners of the side of the heat insulation block (2) facing the base (1).
5. The thermosetting bonding head as described in claim 1, characterized in that, The protrusion (4) has multiple through holes (5).
6. The thermocompression bonding head as described in claim 1, characterized in that, The base (1) has multiple grooves (6) on it, and the grooves (6) are located on the side of the base (1) facing the heat insulation block (2).
7. The thermocompression bonding head as described in claim 1, characterized in that, The base (1) has a first connecting part (7) on its side wall, and the heat insulation block (2) has a second connecting part (8) on its side wall that corresponds to the first connecting part (7). The first connecting part (7) and the second connecting part (8) are detachably connected.
8. The thermocompression bonding head as described in claim 1, characterized in that, It also includes a pipe connector (9), which is disposed on the base (1). The base (1) has a first heat dissipation hole (10) and the heat insulation block (2) has a second heat dissipation hole (11). One end of the first heat dissipation hole (10) is connected to the pipe connector (9) and the other end is connected to the second heat dissipation hole (11). The pipe connector (9) is used to sequentially pass the heat dissipation airflow into the first heat dissipation hole (10) and the second heat dissipation hole (11).
9. The thermocompression bonding head as described in claim 8, characterized in that, The second heat dissipation hole (11) is provided on the protrusion (4).
10. The thermocompression bonding head as described in claim 1, characterized in that, It also includes a heating element (12), which is disposed on the side of the heat insulation block (2) facing away from the base (1) and connected to the heat insulation block (2).