Jumper structure and diode with same

Abstract

The utility model provides a jumper structure and a diode with the jumper structure, and relates to the technical field of semiconductor packaging, and the jumper structure comprises a main body which is provided with a first connecting part which is used for being connected with a diode frame through a tin layer; the folding lugs comprise a first folding lug and a second folding lug, and the first folding lug is formed by extending downwards along the first end of the main body and bending; the first end of the main body extends downwards and is bent to form a first folding lug, the second end of the main body extends downwards and is bent to form a second folding lug, and the first folding lug and the second folding lug can extend into the other side of the diode frame from one side of the diode frame along positioning holes in the diode frame. The probability of pseudo soldering caused by diode jumper deviation can be effectively reduced, and the yield and reliability of the diode are improved. The diode provided by the utility model comprises the diode frame and the jumper structure, and the yield and the reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a semiconductor packaging technical field especially a jumper structure and diode with the jumper structure. BACKGROUND

[0002] At present, diode packaging industry develops rapidly, and the clip welding structure is very popular in the structure design of diode because of its high productivity, and the welding precision requirement of diode is higher and higher because of low cost, small size chip welding and chip lamination design.

[0003] As shown in Figure 1 and Figure 2 , the jumper structure 100 and the diode frame 200 are usually plane structures, the jumper structure and the diode frame are welded and connected through the tin paste in the process of diode welding, the jumper structure is rotated and deviated in the welding process by the factors such as tin paste melting flow and equipment precision, thereby leading to the problems of poor welding yield and product reliability failure. UTILITY MODEL CONTENT

[0004] The utility model discloses a jumper structure and diode with the jumper structure, the jumper and diode frame are usually plane structures, the jumper and frame are welded and connected through the tin paste in the process of diode welding, the jumper is rotated and deviated in the welding process by the factors such as tin paste melting flow and equipment precision, thereby leading to the problems of poor welding yield and product reliability failure.

[0005] To achieve the above object, the utility model provides the following technical scheme.

[0006] The utility model provides a jumper structure, which comprises:

[0007] A main body is provided with a first connecting part for connecting a diode frame through a tin layer.

[0008] Ears are folded, including first ear and second ear, wherein the first ear is formed by extending and bending downward along the first end of the main body, and the second ear is formed by extending and bending downward along the second end of the main body, and the first ear and the second ear can extend from one side of the diode frame to the other side of the diode frame through the positioning hole on the diode frame.

[0009] Preferably, the first folded ear includes a first extension section and a first bending section. The first extension section is disposed between the main body and the first bending section. One end of the first bending section is connected to the first extension section, and the other end of the first bending section is bent toward the side away from the main body.

[0010] Preferably, the angle between the first bent segment and the first extended segment is an acute angle.

[0011] Preferably, the second folded ear includes a second extension section and a second bending section. The second extension section is disposed between the main body and the second bending section. One end of the second bending section is connected to the second extension section, and the other end of the second bending section is bent toward the side away from the main body.

[0012] Preferably, the angle between the second bent segment and the second extended segment is an acute angle.

[0013] Preferably, the first folded ear and the second folded ear are arranged symmetrically along the center of the body.

[0014] A diode includes the jumper structure described above. A second connection portion is provided on a first surface of the diode frame. The second connection portion is connected to the first connection portion through a tin layer, thereby connecting the jumper structure to the diode frame.

[0015] Preferably, the diode frame includes a first positioning hole and a second positioning hole, the first folded ear can pass through the first positioning hole, and the second folded ear can pass through the second positioning hole.

[0016] Preferably, the end of the first folded ear abuts against the second surface of the diode frame.

[0017] Preferably, the end of the second fold abuts against the second surface of the diode frame.

[0018] The jumper structure provided by this utility model includes a main body and a folded lug. The main body is provided with a first connecting portion for connecting to a diode frame through a solder layer. A first folded lug is formed by extending downward from the first end of the main body and bending. A second folded lug is formed by extending downward from the second end of the main body and bending. The first and second folded lugs can extend from one side of the diode frame to the other side of the diode frame through positioning holes on the diode frame. Through the cooperation of the first and second folded lugs with the positioning holes on the diode frame, the jumper structure and the diode frame are tightly integrated into a whole. This increases the bonding force between the jumper structure and the diode frame and effectively fixes the position of the jumper structure. By fixing the position of the jumper structure during the solder paste melting process, the accuracy of the soldering process is increased, which can effectively reduce the probability of poor soldering caused by diode jumper misalignment and improve the yield and reliability of the diode.

[0019] The diode provided by the utility model has improved yield and reliability, and can effectively prolong the service life of the diode due to the firm embedding of the jumper structure and the diode frame during long-term use of the diode. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is a structure diagram of the jumper structure and the diode frame welding in the background art;

[0022] Figure 2 It is Figure 1 a cross-sectional structure diagram;

[0023] Figure 3 It is a structure diagram of the jumper structure one embodiment of the utility model;

[0024] Figure 4 It is a structure diagram of the jumper structure and the diode frame welding of the utility model;

[0025] Figure 5 It is Figure 4 the A-A cross-sectional structure diagram of;

[0026] In the drawing: 100, jumper structure;10, main body;101, first end;102, second end;11, first connecting part;20, ear;21, first ear;211, first extension section;212, first bending section;22, second ear;221, second extension section;222, second bending section;

[0027] 200, diode frame;201, first positioning hole;202, second positioning hole;210, first surface;220, second surface;

[0028] 300, tin layer. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.

[0030] Embodiment one

[0031] Figure 3 It is the structural schematic diagram of this embodiment, as shown in Figure 3 The utility model provides a jumper structure 100, the jumper structure 100 includes main body 10 and ear 20. Figure 4 It is the structural schematic diagram of the jumper structure and diode frame welding of this embodiment, Figure 5 It is Figure 4 A-A sectional structure schematic diagram, as shown in Figure 4 And Figure 5 Main body 10 is used to be connected with diode frame 200 through tin paste, ear 20 is used to limit main body 10 and diode frame 200, in the welding process, because the position of jumper structure 100 is limited by ear 20, the position of jumper structure 100 can be positioned accurately, jumper structure 100 will not be affected when tin paste melts, greatly improves the precision of welding.

[0032] Specifically, first connecting portion 11 is arranged on main body 10 in this embodiment, and first connecting portion 11 is used to connect diode frame 200 through tin layer 300. It can be understood that first connecting portion 11 can be a structure arranged on main body 10 for enabling tin layer 300 to be connected firmly with main body 10, such as a tiny groove or a protrusion, etc., which plays a role in increasing the bonding surface and improving the connection effect.

[0033] As shown in Figures 3-5 Ear 20 includes first ear 21 and second ear 22, wherein first ear 21 is formed by extending and bending downward along the first end 101 of main body 10, and second ear 22 is formed by extending and bending downward along the second end 102 of main body 10, and first ear 21 and second ear 22 can extend from one side of diode frame 200 to the other side of diode frame 200 along the positioning hole on diode frame 200.

[0034] In this way, the jumper structure 100 and the diode frame 200 can be tightly combined into a whole through the cooperation of the first and second folded ears 21 and 22 and the positioning holes on the diode frame 200, which not only increases the bonding force between the jumper structure 100 and the diode frame 200, but also effectively fixes the position of the jumper structure 100. The position of the jumper structure 100 is fixed during the melting process of the tin paste, which increases the accuracy during the welding process, effectively reduces the probability of virtual welding caused by the deviation of the diode jumper, improves the yield and reliability of the diode, and greatly improves the TC reliability of the diode and the service life of the diode due to the firm embedding of the jumper structure 100 and the diode frame 200 during long-term use of the diode.

[0035] As an optional embodiment, as shown in Figure 3 The first folded ear 21 includes a first extension section 211 and a first bent section 212. The first extension section 211 is arranged between the main body 10 and the first bent section 212. One end of the first bent section 212 is connected with the first extension section 211, and the other end of the first bent section 212 is bent towards the side away from the main body 10.

[0036] During assembly, the first folded ear 21 enters the positioning hole of the diode frame 200 through the pressure of the suction nozzle, and is embedded with the diode frame 200, which increases the contact bonding force between the jumper structure 100 and the diode frame 200. By arranging the other end of the first bent section 212 to be bent towards the side away from the main body 10, necessary support is provided to the two sides of the main body 10, which can make the combination of the jumper structure 100 and the diode frame 200 more stable.

[0037] Optionally, in order to further improve the combination stability of the jumper structure 100 and the diode frame 200, the included angle between the first bent section 212 and the first extension section 211 is an acute angle.

[0038] As an optional embodiment, as shown in Figure 3 The second folded ear 22 includes a second extension section 221 and a second bent section 222. The second extension section 221 is arranged between the main body 10 and the second bent section 222. One end of the second bent section 222 is connected with the second extension section 221, and the other end of the second bent section 222 is bent towards the side away from the main body 10.

[0039] In the process of assembling, the second bent ear 22 enters the positioning hole of the diode frame 200 through the pressure of the suction nozzle, and is embedded with the diode frame 200, thereby increasing the contact bonding force between the jumper structure 100 and the diode frame 200. By bending the other end of the second bent section 222 towards the side away from the main body 10, necessary support is provided to the two sides of the main body 10, so that the combination of the jumper structure 100 and the diode frame 200 is more stable.

[0040] Optionally, in the embodiment, in order to further improve the combination stability of the jumper structure 100 and the diode frame 200, the included angle between the second bent section 222 and the second extension section 221 is an acute angle.

[0041] Optionally, in the embodiment, the first bent ear 21 and the second bent ear 22 are symmetrically arranged along the center of the main body 10. In this way, when assembling, the suction nozzle is pressed downward, the two sides of the bent ear of the main body 10 receive the same force, and the overall structure of the diode is more stable and reliable.

[0042] Of course, in some embodiments, the first bent ear 21 and the second bent ear 22 can also be arranged in different structures according to actual use needs. In this way, the first bent ear 21 and the second bent ear 22 can also be asymmetric, so as to ensure the stable connection of the overall structure and avoid the offset of the jumper during the welding process of the diode, thereby causing the diode to fail.

[0043] Embodiment Two

[0044] The embodiment provides a diode, which comprises a diode frame 200 and the jumper structure 100 in the embodiment one, and the first surface 210 of the diode frame 200 is provided with a second connecting part. The second connecting part is connected with the first connecting part 11 through a tin layer 300, and is used for connecting the jumper structure 100 with the diode frame 200.

[0045] It can be understood that the second connecting part can be a structure arranged on the diode frame 200 for enabling the tin layer 300 to be firmly connected with the diode frame 200, such as a tiny groove or a protrusion, which plays a role in increasing the bonding surface and improving the connection effect.

[0046] The diode frame 200 in the embodiment comprises a first positioning hole 201 and a second positioning hole 202. The first positioning hole 201 is arranged in correspondence with the first bent ear 21, and the second positioning hole 202 is arranged in correspondence with the second bent ear 22. In use, the first bent ear 21 can pass through the first positioning hole 201, and the second bent ear 22 can pass through the second positioning hole 202. In the embodiment, the end of the first bent ear 21 abuts against the second surface 220 of the diode frame 200. The end of the second bent ear 22 abuts against the second surface 220 of the diode frame 200.

[0047] The diode is positioned by the cooperation of the first folded ear and the positioning hole, the position of the jumper structure 100 is not affected when the tin paste melts, therefore, the precision of the diode welding is greatly improved, the yield of the diode in the welding process is ensured, and the problem of reliability failure is avoided.

[0048] The above merely describes the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A jumper structure, characterized by, The jumper structure comprises: a main body, a first connecting part is arranged on the main body, the first connecting part is used for connecting a diode frame through a tin layer; a folding ear, the folding ear comprises a first folding ear and a second folding ear, wherein the first folding ear is formed by extending and bending downward along a first end of the main body, and the second folding ear is formed by extending and bending downward along a second end of the main body, and the first folding ear and the second folding ear can be inserted from one side of the diode frame to the other side of the diode frame through positioning holes on the diode frame.

2. The jumper structure of claim 1, wherein: The first folding ear comprises a first extending segment and a first bending segment, the first extending segment is arranged between the main body and the first bending segment, one end of the first bending segment is connected with the first extending segment, and the other end of the first bending segment is bent towards a side away from the main body.

3. The jumper structure of claim 2, wherein: An included angle between the first bending segment and the first extending segment is an acute angle.

4. The jumper structure of any of claims 1-3, wherein: The second folding ear comprises a second extending segment and a second bending segment, the second extending segment is arranged between the main body and the second bending segment, one end of the second bending segment is connected with the second extending segment, and the other end of the second bending segment is bent towards a side away from the main body.

5. The jumper structure of claim 4, wherein: An included angle between the second bending segment and the second extending segment is an acute angle.

6. The jumper structure of any of claims 1-3, wherein: The first folding ear and the second folding ear are symmetrically arranged along a center of the main body.

7. A diode characterized by: The jumper structure comprises a diode frame and the jumper structure according to any one of claims 1-6, a second connecting part is arranged on a first surface of the diode frame, the second connecting part is connected with the first connecting part through a tin layer, and the jumper structure is connected with the diode frame.

8. The diode of claim 7, wherein: The diode frame comprises a first positioning hole and a second positioning hole, the first folding ear can pass through the first positioning hole, and the second folding ear can pass through the second positioning hole.

9. The diode of claim 8, wherein: An end of the first folding ear abuts against a second surface of the diode frame.

10. The diode of claim 8, wherein: An end of the second folding ear abuts against the second surface of the diode frame.

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