Tool for gold-tin fusion sealing process

Abstract

The tool comprises a mold body and a clamp, the mold body is in a plate shape, a plurality of positioning grooves used for containing products to be machined are formed in the upper surface of the mold body at intervals, each positioning groove is provided with a groove bottom and a groove wall, a sinking groove is formed in the middle of each groove bottom, and the clamp is arranged in the sinking groove. And clamping arm limiting grooves for limiting the two sides of the clamping arm are formed in the upper surface and the lower surface of the mold body correspondingly, the clamping arm limiting grooves are located in the outer sides of the sides where the two short groove walls are located, and the clamping arm limiting groove located in the upper surface of the mold body communicates with the positioning groove. The tool has the advantages of being high in positioning precision, stable in production environment and capable of saving time and cost, and the production efficiency and the product quality of heat sealing are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of semiconductor manufacturing, in particular to a tooling used in a gold-tin melting and sealing process. Background Art

[0002] Gold-tin sealing is a packaging technology commonly used in the manufacture of electronic components, used to protect and fix electronic components. Gold-tin AuSn8020 has good sealing and mechanical properties, which can effectively prevent electronic components from being invaded by moisture, dust and other external environments. It can also provide good mechanical strength and electrothermal performance to ensure the stability and reliability of the components. The gold-tin sealing process is to heat the gold-tin solder to the melting point, melt it and apply it to the junction of the base and the cover, and then cool and solidify it to form a sealed protective space.

[0003] The product structure to be processed by gold-tin sealing usually includes a cover plate, a base and a cable. The traditional gold-tin sealing process generally uses a special fixture to directly clamp the cover plate and the base of the product to be processed, or uses a jig and a counterweight block to seal. The former cannot completely limit the cover plate and the base during the processing, and the product cover plate often has the problem of offset, the efficiency is slow, and a stable sealing state cannot be guaranteed. The latter affects the stability of the sealing process because the jig and the counterweight affect the stability of the sealing process. Therefore, it is necessary to innovate the traditional gold-tin sealing jig to improve the stability of the sealing process. Utility Model Content

[0004] The utility model aims to provide a tooling for a gold-tin melting and sealing process.

[0005] The technical solution to achieve the purpose of the utility model is: a tooling for gold-tin melting sealing process, which includes a mold body and a clamp, the mold body is plate-shaped, and the upper surface of the mold body is spaced apart with several positioning grooves for accommodating the product to be processed, the positioning groove has a groove bottom and a groove wall, and the middle part of the groove bottom is provided with a sink groove, the clamp includes two clamp arms, the clamp arm has a head end and a tail end, the head ends of the two clamp arms are connected, the upper surface of the mold body and the lower surface of the mold body are respectively provided with clamp arm limiting grooves for limiting the two sides of the clamp arm, the groove wall is surrounded by two long groove walls and two short groove walls, the clamp arm limiting groove is located on the outside of the side where the two short groove walls are located, and the clamp arm limiting groove located on the upper surface of the mold body is connected to the positioning groove.

[0006] Furthermore, the end of any one of the clamping arms is bent toward one side of the other clamping arm to form an arc-shaped bent portion.

[0007] Furthermore, a first groove is formed at the intersection of the adjacent short groove wall and the long groove wall along the depth direction of the positioning groove.

[0008] Furthermore, the sink trough has a sink trough wall, and a second groove is formed at the intersection of adjacent sink trough walls along the depth direction of the sink trough.

[0009] Furthermore, the clamp arm limiting grooves located on the lower surface of the mold body are arranged in a staggered manner.

[0010] The tooling for the gold-tin melting and sealing process realized by the utility model has a sink groove for positioning the cover plate of the product to be processed, and the positioning groove is used to limit the base and lead of the product to be processed. The structure of the positioning groove does not cause the fixture to tilt when it is fixed with a clip, and the clip further clamps the product to be processed, avoiding the phenomenon that the base is offset due to the vibration caused by the downward pressure of the vacuum melting and sealing machine box, and the cover plate and the base are not completely fitted, resulting in holes. The tooling has the characteristics of high positioning accuracy, stable production environment and time cost saving, which greatly improves the production efficiency and product quality of melting and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a multilayer ceramic product according to an embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the main structure of the mold body according to an embodiment of the utility model;

[0013] Figure 3 for Figure 2 AA section structural diagram;

[0014] Figure 4 It is a schematic diagram of the assembly structure of the multilayer ceramic product described in the embodiment of the utility model and the tooling used for the gold-tin sealing process. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0016] by Figure 1 Taking the structure of the multi-layer ceramic product shown as an example, the multi-layer ceramic product comprises a cover plate 100 and a base 200 , and leads 300 are installed on both sides of the base 200 .

[0017] like Figures 2 to 4As shown, a tool for gold-tin sealing process includes a mold body 10 and a clamp 20. The mold body 10 is plate-shaped. The upper surface 101 of the mold body 10 is spaced apart with a plurality of positioning grooves 1 for accommodating the product to be processed. The positioning groove 1 has a groove bottom 11 and a groove wall 12. The groove wall 12 is surrounded by two long groove walls 121 and two short groove walls 122. A first groove 123 is formed at the intersection of adjacent short groove walls 122 and long groove walls 121 along the depth direction of the positioning groove 1; a sink groove 13 is formed at the middle of the groove bottom 11. The sink groove 13 has a sink groove wall 131. A second groove 132 is formed at the intersection of adjacent sink groove walls 131 along the depth direction of the sink groove 13.

[0018] The clip 20 includes two clip arms 201 , each having a head end 2011 and a tail end 2012 . The head ends 2011 of the two clip arms 201 are connected, and the tail end 2012 of any clip arm 201 is bent toward one side of the other clip arm 201 to form an arc-shaped bent portion 2013 .

[0019] The upper surface 101 of the mold body 10 and the lower surface 102 of the mold body 10 are respectively provided with clamp arm limiting grooves 2 for limiting the two sides of the clamp arm 201, and the clamp arm limiting grooves 2 are located on the outer side of the two sides where the short groove walls 122 are located. The clamp arm limiting grooves 2 located on the upper surface 101 of the mold body 10 are connected with the positioning grooves 1, and the clamp arm limiting grooves 2 located on the lower surface 102 of the mold body 10 are arranged in an alternating manner.

[0020] When in use, the multilayer ceramic product is placed in the positioning groove. The sink is used to position the cover of the product to be processed. The positioning groove is used to limit the base and lead of the product to be processed. The structure of the positioning groove does not cause the fixture to tilt when it is fixed with a clip. The clip further clamps the product to be processed, avoiding the phenomenon of the base being offset due to the vibration caused by the downward pressure of the vacuum sealing machine chassis and the cover and base not being completely fitted, resulting in holes. By using this tooling, multilayer ceramic products can be quickly placed and fixed, reducing operation time and manual operation errors, thereby improving production efficiency.

[0021] The end structure of the clamping arm of the utility model is not limited to that shown in the embodiment. The arc-shaped bending portion formed at the end is more conducive to clamping the product to be processed; the first groove and the second groove are set as needed, and the first groove and the second groove are avoidance positions, which are convenient for taking and placing the product to be processed and preventing the product from being stuck; the clamping arm limit grooves on the lower surface of the mold body can be selectively arranged in a staggered manner, as long as the clamp is not easily displaced by vibration when clamping the product to be processed, and will not cause the fixture to tilt.

[0022] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A tool for gold-tin sealing process, characterized in that: It includes a mold body and a clamp. The mold body is in a plate shape. Several positioning grooves for accommodating the product to be processed are spaced apart on the upper surface of the mold body. The positioning groove has a groove bottom and a groove wall. A countersunk groove is provided in the middle of the groove bottom. The clamp includes two clamp arms. The clamp arms have a head end and a tail end. The head ends of the two clamp arms are connected. Clamp arm limiting grooves for limiting the two sides of the clamp arms are respectively provided on the upper surface of the mold body and the lower surface of the mold body. The groove wall is surrounded by two long groove walls and two short groove walls. The clamp arm limiting groove is located on the outer side of the side where the two short groove walls are located. The clamp arm limiting groove located on the upper surface of the mold body is connected to the positioning groove.

2. The tooling for the gold-tin sealing process according to claim 1, characterized in that: The end of any one of the clamping arms is bent toward one side of the other clamping arm to form an arc-shaped bent portion.

3. The tooling for the gold-tin sealing process according to claim 1, characterized in that: A first groove is formed at the intersection of the adjacent short groove walls and the long groove walls along the depth direction of the positioning groove.

4. The tooling for the gold-tin sealing process according to claim 3 is characterized in that: The sinking groove has a sinking groove wall, and a second groove is formed at the intersection of adjacent sinking groove walls along the depth direction of the sinking groove.

5. The tooling for the gold-tin sealing process according to claim 1, characterized in that: The clamp arm limiting grooves located on the lower surface of the mold body are arranged in a staggered manner.

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