Gold-tin sealing cover tool for vacuum welding furnace
By designing a gold-tin sealing fixture for vacuum welding furnaces, the problem of positioning difficulties in traditional sealing technology has been solved, achieving a highly stable, high-precision, and high-efficiency sealing effect, thereby improving product quality and production efficiency.
Patent Information
- Application Number
- CN202423247476.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In existing technologies, traditional capping techniques have positioning difficulties in microcrystalline glass encapsulation, leading to poor welding and leakage risks, as well as low efficiency, which affects product yield and production costs.
A gold-tin sealing fixture for a vacuum welding furnace was designed, including a sealing limiting base plate and a pressing component. The precise positioning and stable connection of the limiting frame and screws ensure the stability and accuracy of the sealing process. Graphite material with good thermal conductivity is used to improve the sealing quality.
It achieves a highly stable, high-precision, and high-efficiency capping process, reduces the risk of welding defects, improves product yield and capping efficiency, and reduces production costs.
Smart Images

Figure CN223642913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microelectronic packaging technology, specifically a gold-tin sealing tool for a vacuum welding furnace. Background Technology
[0002] With the iterative development of the microelectronics field, various packaging materials have flourished in the electronic packaging industry. Among the many packaging materials such as metals, ceramics, and plastics, glass packaging has emerged as a rising star in recent years. Microcrystalline glass, in particular, is widely used in the packaging field. However, most microcrystalline glass packaging products on the market currently use Kovar alloy in combination with microcrystalline glass. Simply put, Kovar alloy is used as the base and cover plate, while microcrystalline glass serves as the main packaging material. In packaging products, capping technology is indispensable. The traditional capping method is parallel sealing technology. Although this technology is mature and relatively reliable, its efficiency is a drawback. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a gold-tin sealing fixture for a vacuum welding furnace.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a gold-tin sealing fixture for a vacuum welding furnace, comprising a sealing limiting base plate and a pressing assembly. The sealing limiting base plate is provided with several sets of mounting grooves. The pressing assembly includes a limiting frame and screws. The limiting frame includes a top plate and support legs. The support legs are symmetrically arranged on both sides below the top plate. Screw holes are provided through the top plate and the support legs. A positioning groove adapted to the support legs is also provided on the sealing limiting base plate perpendicular to the center of the mounting groove. A screw groove is also provided on the positioning groove. The screw passes through the corresponding screw hole and is threadedly connected to the screw groove.
[0007] Preferably, the support legs are rounded.
[0008] Preferably, the upper end of the screw is provided with a countersunk hole.
[0009] Preferably, the countersunk hole is hexagonal.
[0010] Preferably, a guide groove is also provided at the center below the top plate.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides a gold-tin sealing fixture for a vacuum welding furnace, which has the following advantages:
[0013] This gold-tin sealing tooling for vacuum welding furnaces provides highly stable, high-precision, and high-efficiency sealing services for microcrystalline glass encapsulation products sealed in vacuum welding furnaces. It avoids the risk of poor welding and gas leakage caused by the difficulty in positioning traditional sealing technology, which leads to component misalignment. It significantly improves product yield and reduces production costs. In addition, it greatly improves sealing efficiency, making the overall sealing production process simpler and more efficient, and reducing labor costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of a partial explosion of the structure of this utility model;
[0016] Figure 3 This is a partial bottom view of the structure of this utility model.
[0017] In the diagram: 1. Cover limiting base plate; 2. Top plate; 3. Support leg; 4. Screw. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3 A gold-tin sealing fixture for a vacuum welding furnace includes a sealing limiting base plate 1 and a pressing assembly. The sealing limiting base plate 1 is provided with several sets of mounting grooves. The pressing assembly includes a limiting frame and screws 4. The limiting frame includes a top plate 2 and support legs 3. The support legs 3 are symmetrically arranged on both sides below the top plate 2. Both the top plate 2 and the support legs 3 have through screw holes. The sealing limiting base plate 1 is also provided with a positioning groove that matches the support legs 3 at a position perpendicular to the center of the mounting groove. The positioning groove is also provided with a screw groove. The screws 4 pass through the corresponding screw holes and are threadedly connected to the screw grooves.
[0020] The capping and limiting base plate 1 serves as the basic load-bearing component of the entire tooling. Several sets of mounting slots on it are used to place the object to be packaged, providing a stable operating platform for the packaging operation. The positioning slot, perpendicular to the center of the mounting slots, precisely matches the support feet 3 of the pressing component, enabling accurate positioning of the pressing component. This ensures that the force applied during the pressing operation is evenly and accurately applied to the object to be packaged, preventing offset or shaking. This lays the foundation for high-quality capping, ensuring the stability and accuracy of the packaging process, and allowing each packaged product to meet process standards.
[0021] Symmetrical support legs 3 are arranged on both sides below the top plate 2, which ensures stability when pressing down without taking up too much space or affecting other operations. The rounded ends of the support legs 3 serve as guides and buffers when the limiting frame is installed into the positioning groove of the sealing limiting base plate 1, making it easier for the support legs 3 to slide into the positioning groove, reducing wear and jamming during installation, speeding up assembly, and improving the convenience of operation.
[0022] The through-holes on the top plate 2 and the support legs 3, along with the threaded grooves on the positioning slots, work together with screws 4 to achieve a secure connection. The upper end of screw 4 has a countersunk hexagonal hole for easy tightening with an Allen wrench. Compared to a regular screwdriver, an Allen wrench can apply greater torque, resulting in a more secure tightening of screw 4. This ensures a tight connection between the limiting bracket and the cap limiting base plate 1, preventing loosening or displacement during the capping process. This guarantees stable and reliable downward pressure, evenly applying capping pressure and improving capping quality. The guide groove located at the center of the bottom of the top plate 2 can also guide other auxiliary components in certain capping processes.
[0023] In this embodiment, both the sealing and limiting base plate 1 and the limiting frame are made of graphite material with good thermal conductivity.
[0024] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0025] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A gold-tin sealing fixture for a vacuum welding furnace, comprising a sealing limiting base plate (1) and a pressing assembly, characterized in that: The cap limiting base plate (1) is provided with several sets of mounting slots. The pressing component includes a limiting frame and screws (4). The limiting frame includes a top plate (2) and a support leg (3). The support leg (3) is symmetrically arranged on both sides below the top plate (2). The top plate (2) and the support leg (3) are both provided with through screw holes. The cap limiting base plate (1) is also provided with a positioning slot that matches the support leg (3) at a position perpendicular to the center of the mounting slot. The positioning slot is also provided with a screw groove. The screw (4) passes through the corresponding screw hole and is threadedly connected to the screw groove.
2. The gold-tin sealing fixture for a vacuum welding furnace according to claim 1, characterized in that: The support leg (3) is rounded.
3. The gold-tin sealing fixture for a vacuum welding furnace according to claim 2, characterized in that: The upper end of the screw (4) is provided with a countersunk hole.
4. A gold-tin sealing fixture for a vacuum welding furnace according to claim 3, characterized in that: The countersunk hole is hexagonal.
5. A gold-tin sealing fixture for a vacuum welding furnace according to claim 4, characterized in that: A guide groove is also provided at the center below the top plate (2).