Micro-connection structure of elastic sheet micro-needle
Through the micro-connection structure of the shrapnel microneedle, the problem of burrs affecting the uniformity of elastic force when the shrapnel microneedle is disconnected is solved, and stable testing of the shrapnel microneedle is achieved.
Patent Information
- Application Number
- CN202422591732.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Traditional shrapnel microneedles produce burrs when they break, affecting the uniformity of elastic force, resulting in irregular contact during the test and affecting test accuracy.
A micro-connection structure of a shrapnel microneedle is designed, which is connected to the frame through the first and second micro-connection parts, forming an inwardly concave groove to accommodate burrs, ensure the consistency of elastic force, and facilitate separation through the half-cut line.
It effectively avoids the contact between burrs and terminals, ensures the uniformity of the elastic force of the shrapnel microneedle, and improves the test accuracy and reliability.
Smart Images
Figure CN223426733U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of precision testing technology, in particular to a micro-connection structure of a shrapnel micro-needle. Background Art
[0002] With the development of industrial technology, consumers have higher expectations for the performance and reliability of electronic products, and demanding testing. Stable testing of various consumer electronic products has become an important means to ensure and improve their performance and reliability. From assembly to final production, electronic products require the use of probe test modules to conduct quality inspection and testing of each circuit component involved.
[0003] As the size of semiconductor products continues to shrink, the size of the terminals under test and the spacing between different terminals under test are also shrinking. Traditional probes are gradually becoming thinner and smaller, and the rigidity of the probes is gradually reduced, resulting in the emergence of shrapnel microneedles for testing electronic products. During the production process of shrapnel microneedles, in order to facilitate production, the shrapnel microneedles need to be connected to the frame. When the shrapnel microneedles are disconnected from the frame, small burrs will be left at the disconnection point. After multiple shrapnel microneedles are installed on the test terminals, the shrapnel microneedles move during the test. Irregular burrs may contact the side walls of the terminals, thereby affecting the elastic force of the shrapnel microneedles, resulting in uneven elastic force of multiple shrapnel microneedles. Utility Model Content
[0004] The purpose of the present invention is to solve the shortcomings of the existing technology and to propose a micro-connection structure of a spring microneedle, which can effectively prevent irregular burrs from contacting the terminal side wall and affecting the elastic force of the spring microneedle, thereby ensuring that the elastic force of multiple spring microneedles is consistent.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A micro-connection structure of a shrapnel microneedle includes a frame and multiple shrapnel microneedles. Each shrapnel microneedle includes a testing end, a deformable elastic portion, and a connection end. The frame is connected to the shrapnel microneedle via a first micro-connection portion and a second micro-connection portion. The first micro-connection portion and the second micro-connection portion both include a first side edge and a second side edge. The first side edge and the second side edge extend into the outline of the shrapnel microneedle.
[0007] Furthermore, the deformable elastic portion is S-shaped, W-shaped or bow-shaped.
[0008] Furthermore, the first micro-connection portion and the second micro-connection portion are respectively provided at two ends of the deformation elastic portion.
[0009] Furthermore, the first side and the second side are inclined or arc-shaped, and the distance between the first side and the second side decreases as the depth of the microneedle extending into the outline of the elastic sheet increases.
[0010] Furthermore, the minimum distance between the first side and the second side is 20-100 μm.
[0011] Furthermore, half-tangent lines are provided at the ends of the first side and the second side extending into the outline of the elastic microneedle.
[0012] Furthermore, a third micro-connection portion is provided between the first micro-connection portion and the second micro-connection portion.
[0013] The utility model has the following beneficial effects:
[0014] 1. The frame and the spring microneedle are connected by a first microconnection and a second microconnection. The first microconnection and the second microconnection each include a first side edge and a second side edge. The first side edge and the second side edge extend into the outline of the spring microneedle. Therefore, when the spring microneedle is disconnected from the frame, an inwardly recessed groove is formed on the surface of the spring microneedle. The burr is located in the groove, effectively preventing irregular contact between the burr and the test terminal after the spring microneedle is assembled to the test terminal.
[0015] 2. The first micro-connection part and the second micro-connection part are respectively arranged at both ends of the deformable elastic part, thereby effectively fixing the deformable elastic part and preventing the deformable elastic part from deforming during the production process, which may cause uneven elasticity of each elastic microneedle.
[0016] 3. By setting a half-cut line, it is convenient to separate the frame and the shrapnel microneedle. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is the structural purpose of embodiment 1.
[0018] Figure 2 This is an enlarged view of the micro-connection portion of Example 1.
[0019] Figure 3 This is a schematic diagram of the structure after the micro-connection part of Example 1 is disconnected.
[0020] Figure 4 This is a structural diagram of Example 2.
[0021] Frame 1 , spring microneedle 2 , test end 21 , deformable elastic portion 22 , connection end 23 , first microconnection portion 31 , second microconnection portion 32 , first side 311 , second side 312 , groove 4 , burr 5 . DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] Example 1:
[0024] A micro-connection structure of a spring microneedle, comprising a frame 1, a plurality of spring microneedles 2, such as Figure 1 As shown, each frame 1 is provided with 8 spring microneedles 2. It is understood that the number and arrangement of the spring microneedles 2 can be changed according to actual conditions. Each spring microneedle includes a test end 21, a deformable elastic portion 22 and a connection end 23.
[0025] The frame 1 is connected to the spring microneedles 2 via a first microconnector 31 and a second microconnector 32. These first and second microconnectors 31, 32 have identical structures and are positioned at either end of the deformable elastic portion, effectively securing the portion and preventing uneven elasticity among the elastic microneedles caused by deformation during production. The deformable elastic portion is S-shaped. When the test point contacts the test end 21, the test end 21 is subjected to force, and the deformable elastic portion 22 compresses the test end 21, effectively pressing the test point against the test point. When the test is complete, the test point moves away from the test end 21, and the deformable elastic portion resets the test end 21.
[0026] The structure of the microconnection will be described below using the first microconnection 31 as an example. Each first microconnection 31 includes a first side 311 and a second side 312. The first microconnection 31 extends from the frame 1 into the contour of the elastic microneedle. The first and second sides 311, 312 are inclined, and the length D of the first and second sides 311, 312 extending into the contour of the elastic microneedle is 20-100 μm. The distance between the first and second sides 311, 312 decreases as the depth of the extension into the contour of the elastic microneedle increases. The minimum distance H between the first and second sides 311, 312 is 20-100 μm. By limiting the distance between the ends of the first and second sides 311, 312, the deformable elastic portion can be effectively secured before the frame is disconnected from the elastic microneedle via the microconnection, allowing for effective disconnection when the frame and elastic microneedle are disconnected.
[0027] When the shrapnel microneedle is processed and disconnected from the frame, an inwardly recessed groove 4 is formed on the surface of the shrapnel microneedle, and the burr 5 is located in the groove 4, thereby effectively avoiding irregular contact between the burr and the test terminal after the shrapnel microneedle is assembled to the test terminal.
[0028] Example 2:
[0029] The difference between Example 2 and Example 1 is that the deformable elastic portion is W-shaped. It is understood that the deformable elastic portion can also be designed as an arch or other deformable elastic structure. The first side and the second side are arc-shaped, and the distance between the first side and the second side decreases as the depth of the elastic microneedle increases. The ends of the first side 311 and the second side 312 that extend into the elastic microneedle outline are provided with a half-tangent line. The provision of the half-tangent line facilitates separation of the frame and the elastic microneedle.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A micro-connection structure of a shrapnel microneedle, characterized in that: It includes a frame, multiple spring microneedles, each spring microneedle includes a testing end, a deformation elastic part and a connection end, the frame is connected to the spring microneedle through a first microconnection part and a second microconnection part, the first microconnection part and the second microconnection part both include a first side edge and a second side edge, and the first side edge and the second side edge extend into the outline of the spring microneedle.
2. The micro-connection structure of the elastic microneedle according to claim 1, characterized in that: The deformable elastic portion is in an S-shape, a W-shape or a bow-shape.
3. The micro-connection structure of the elastic microneedle according to claim 1, characterized in that: The first micro-connection portion and the second micro-connection portion are respectively arranged at two ends of the deformation elastic portion.
4. The micro-connection structure of the elastic microneedle according to claim 1, characterized in that: The first side and the second side are inclined or arc-shaped, and the distance between the first side and the second side decreases as the depth of the microneedle extending into the elastic sheet increases.
5. The micro-connection structure of the elastic microneedle according to claim 3, characterized in that: The minimum distance between the first side and the second side is 20-100 μm.
6. The micro-connection structure of the elastic microneedle according to claim 1, characterized in that: The ends of the first side and the second side extending into the outline of the elastic microneedle are provided with half-tangent lines.
7. The micro-connection structure of the elastic microneedle according to claim 1, characterized in that: A third micro-connection portion is further provided between the first micro-connection portion and the second micro-connection portion.