Double-chip jumper frame

Abstract

The utility model relates to the technical field of semiconductor packaging, and discloses a double-chip jumper wire framework, which comprises four edge connecting ribs distributed in a rectangular shape, a plurality of vertical connecting ribs arranged in a rectangular frame formed by the four edge connecting ribs in parallel, and a plurality of jumper wires, the rectangular frame is provided with a plurality of vertical connecting ribs, the plurality of vertical connecting ribs divide the rectangular frame into a plurality of rectangular mounting areas, the plurality of jumper wires are divided into a plurality of jumper wire groups, each jumper wire group is arranged in the corresponding mounting area, each jumper wire comprises a wire body, a bending part and a welding part which are connected in sequence, the wire body is provided with a bulge, and the welding part is V-shaped. According to the jumper wire frame, the bulges are arranged on the jumper wires, so that the soldering tin welding area and the welding strength can be increased, and the welding stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor packaging, in particular to a double-chip jumper frame. Background Art

[0002] The lead frame, as the chip carrier of the integrated circuit, is a key structural component that uses bonding materials (gold wire, aluminum wire, copper wire) to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It acts as a bridge connecting to external wires while taking into account functions such as heat dissipation and mechanical support.

[0003] At present, most of the dual-chip lead frames on the market have low welding stability, are easily misaligned during welding, and have a high defect rate. Utility Model Content

[0004] The utility model aims to provide a double-chip jumper frame, which can improve welding stability and prevent deviation.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a dual-chip jumper frame, comprising four edge connecting ribs distributed in a rectangular shape, a plurality of vertical connecting ribs arranged in parallel in a rectangular frame surrounded by the four edge connecting ribs, and a plurality of jumpers, wherein the plurality of vertical connecting ribs divide the rectangular frame into a plurality of rectangular installation areas, the plurality of jumpers are divided into a plurality of jumper groups, each of the jumper groups is respectively arranged in an installation area, the jumper comprises a wire body, a bending portion, and a welding portion connected in sequence, a protrusion is provided on the wire body, and the welding portion is V-shaped.

[0006] Preferably, a bending foot is provided at one end of the wire body away from the bending portion, and the bending foot has the same bending direction as that of the bending portion.

[0007] Preferably, there are two bending feet, and the two bending feet are symmetrically arranged on the wire body.

[0008] Preferably, the jumper group is composed of two jumpers arranged side by side, and the jumper group is fixed in the rectangular installation area through a connecting strip, and the directions of two adjacent rows of jumper groups are different.

[0009] Preferably, two adjacent rows of jumper wire groups are staggered and arranged.

[0010] Preferably, the side surfaces of the edge connecting ribs and the vertical connecting ribs are both provided with a plurality of bending supports, the bending supports have the same bending direction as the bending portion, and the height of the bending supports is greater than the height of the bending portion.

[0011] The beneficial effects of the present invention are as follows: arranging the protrusions on the jumper wire can increase the soldering area and welding strength, improve the welding stability, and arranging the V-shaped bend on the welding part increases the weldability, ensuring that the jumper wire can be better welded.

[0012] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 A schematic structural diagram of a dual-chip jumper frame according to an embodiment of the present invention is shown;

[0015] Figure 2 Shows the utility model Figure 1 A in the middle is an enlarged schematic diagram;

[0016] Figure 3 A schematic structural diagram of a jumper wire according to an embodiment of the present invention is shown;

[0017] Figure 4 A side view of a dual-chip jumper frame according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0018] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0019] Please refer to Figures 1-4 This embodiment discloses a dual-chip jumper frame, including four edge connecting ribs 1 distributed in a rectangular shape, multiple vertical connecting ribs 2 arranged in parallel within a rectangular frame surrounded by the four edge connecting ribs 1, and a plurality of jumpers 3. The multiple vertical connecting ribs 2 divide the rectangular frame into a plurality of rectangular installation areas. The plurality of jumpers 3 are divided into a plurality of jumper groups, each of which is arranged in an installation area. The jumper 3 includes a wire body 31, a bending portion 32, and a welding portion 33 connected in sequence. A protrusion 311 is provided on the wire body 31, and the welding portion 33 is V-shaped.

[0020] In this embodiment, the protrusion 311 increases the welding area, thereby improving the welding strength and thus the welding stability, and the welding portion 33 is set to be tilted in a V shape, which improves the weldability of the jumper wire 3. Specifically, the V-shaped tilt angle is 10 degrees.

[0021] In this embodiment, a bending leg 312 is provided at one end of the wire body 31 away from the bending portion 32. The bending leg 312 has the same bending direction as the bending portion 32. Specifically, two bending legs 312 are provided, and the two bending legs 312 are symmetrically arranged on the wire body 31. The bending legs 312 improve the stability of welding and prevent deviation.

[0022] In this embodiment, the jumper group is composed of two jumpers 3 arranged side by side. The jumper group is fixed in the rectangular installation area through a connecting strip, and the directions of two adjacent rows of jumper groups are different.

[0023] Specifically, two adjacent rows of jumper wire groups are staggered and arranged, which can increase the number of jumper wires 3 arranged per unit area and improve production. Specifically, two adjacent rows of jumper wire groups are arranged crosswise on the left and right to increase the number of jumper wires arranged.

[0024] Please refer to Figure 4 The side surfaces of the edge connecting ribs 1 and the vertical connecting ribs 2 are each provided with multiple bending supports 101. These bending supports 101 bend in the same direction as the bending portion 32 and are taller than the bending portion 32. The bending supports 101 provide better support, thereby better protecting the jumper wires 3 and minimizing damage to the bending portion 32. Specifically, the height of the bending supports 101 is 2.5 cm, while the height of the bending portion 32 is 1.90-1.95 cm.

[0025] In summary, the jumper frame of this embodiment sets the protrusion 311 on the jumper 3 to increase the soldering area and welding strength, improve the stability of welding, and set the welding part 33 to be V-shaped to increase the accuracy of welding, prevent deviation, and reduce the defective rate.

[0026] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0027] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A dual-chip jumper frame, characterized in that: It includes four edge connecting bars distributed in a rectangular shape, multiple vertical connecting bars arranged in parallel in a rectangular frame surrounded by the four edge connecting bars, and several jumpers. The multiple vertical connecting bars divide the rectangular frame into several rectangular installation areas. The several jumpers are divided into multiple jumper groups. Each jumper group is respectively arranged in the installation area. The jumper includes a wire body, a bending part, and a welding part connected in sequence. A protrusion is provided on the wire body, and the welding part is V-shaped.

2. The dual-chip jumper frame according to claim 1, wherein: A bending leg is provided at one end of the wire body away from the bending portion, and the bending leg has the same bending direction as that of the bending portion.

3. The dual-chip jumper frame according to claim 2, wherein: There are two bending feet, and the two bending feet are symmetrically arranged on the wire body.

4. The dual-chip jumper frame according to claim 1, wherein: The jumper group is composed of two jumpers arranged side by side. The jumper group is fixed in the rectangular installation area through a connecting strip. The directions of two adjacent rows of jumper groups are different.

5. The dual-chip jumper frame according to claim 1, wherein: Two adjacent rows of jumper groups are staggered.

6. The dual-chip jumper frame according to claim 1, wherein: The side surfaces of the edge connecting ribs and the vertical connecting ribs are both provided with a plurality of bending supports, the bending directions of the bending supports and the bending portions are the same, and the heights of the bending supports are greater than the heights of the bending portions.

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