High-strength corrosion-resistant SPCC steel and iron material lead frame

Abstract

The utility model relates to the technical field of integrated circuit packaging, in particular to a high-strength corrosion-resistant SPCC steel material lead frame, which comprises a frame body, the frame body is provided with at least one placing unit, each placing unit comprises a frame body and a pin, the pin is arranged at the bottom of the frame body, a lead is arranged on the outer side of the pin, and the lead is arranged in the frame body. One side of the frame body is provided with a first through hole, the frame body is provided with a second through hole on the same side with the first through hole, one side of the frame body far away from the first through hole is provided with a third through hole, and one side of the frame body far away from the first through hole is provided with a fourth through hole. Reinforcing ribs are arranged in the middle of the frame body. The frame is provided with reasonable through hole design, the first through hole, the second through hole, the third through hole and the fourth through hole are arranged in pairs, the positioning requirement during production and assembly is met, follow-up testing and maintenance are facilitated, the number and the positions of the through holes are elaborately optimized, and it is guaranteed that the overall strength and stability are not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated circuit packaging, in particular to a high-strength, corrosion-resistant SPCC steel material lead frame. Background Art

[0002] Lead frame is an important part of electronic packaging technology. It is mainly used to support and fix the chip and provide electrical connection and heat dissipation channel. Lead frame is usually made of metal material with good conductivity and mechanical strength. It usually consists of chip pads, pins and connecting bridges. The chip pad is used to fix the chip, and the pins are used to connect the chip to the external circuit.

[0003] However, existing lead frames may face the problem of insufficient strength in some applications. This is mainly because with the miniaturization and high performance of electronic products, the requirements for the strength and reliability of lead frames are also increasing. In certain specific scenarios, such as harsh environments such as high temperature, high humidity or high frequency vibration, existing lead frames may be deformed, broken or have electrical performance degradation due to insufficient strength. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a high-strength corrosion-resistant SPCC steel material lead frame. The full name of SPCC is "Steel Plate Cold Commercial", which means commercial cold-rolled steel plate with excellent ductility and bending performance.

[0005] The utility model adopts the following technical scheme: a high-strength corrosion-resistant SPCC steel material lead frame, comprising a frame body, the frame body having at least one placement unit, the placement unit comprising a frame body and a pin, the pin being arranged at the bottom of the frame body, a lead being arranged on the outer side of the pin, the pin being connected to the lead, a through hole one being arranged on one side of the frame body, a through hole two being arranged on the same side of the frame body as the through hole one, a through hole three being arranged on the side of the frame body away from the through hole one, a through hole four being arranged on the side of the frame body away from the through hole one, and a reinforcing rib being arranged in the middle of the frame body.

[0006] As a further description of the above technical solution:

[0007] The frame body is provided with 12 rows and 32 columns, a total of 384 placement units.

[0008] As a further description of the above technical solution:

[0009] The through holes 1 and 2 are arranged in pairs, and the number of the through holes 1 and 2 is the same.

[0010] As a further description of the above technical solution:

[0011] The through holes three and four are arranged in pairs, and the number of the through holes three and four is the same.

[0012] As a further description of the above technical solution:

[0013] The reinforcing ribs are arranged at the gaps between every four adjacent rows of placement units.

[0014] As a further description of the above technical solution:

[0015] Eight pins are arranged at the bottom of each frame.

[0016] As a further description of the above technical solution:

[0017] The number of the pins is the same as the number of the leads.

[0018] As a further description of the above technical solution:

[0019] The frame body is punched from high-strength, corrosion-resistant SPCC steel material.

[0020] The utility model has the following beneficial effects: reinforcing ribs are added to the design of the frame, and these reinforcing ribs are arranged at the gaps between every four adjacent rows of placement units, which effectively enhances the overall structural strength of the frame and improves its ability to resist bending and twisting, so that the frame can better maintain its shape and stability when subjected to external forces, thereby extending its service life. The frame also has a reasonable through-hole design, with through-hole one and through-hole two arranged in pairs, and through-hole three and through-hole four also arranged in pairs. Such a design not only meets the positioning requirements during the production and assembly process, but also facilitates subsequent testing and maintenance work. At the same time, the number and positions of the through-holes are carefully calculated and optimized to ensure that the overall strength and stability of the frame are not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a high-strength, corrosion-resistant SPCC steel lead frame proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of a high-strength, corrosion-resistant SPCC steel material lead frame proposed by the utility model.

[0023] Legend:

[0024] 1. Frame; 2. Pins; 3. Frame body; 4. Leads; 5. Through hole 1; 6. Through hole 2; 7. Through hole 3; 8. Through hole 4; 9. Reinforcing ribs. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-2 The utility model provides an embodiment: a high-strength, corrosion-resistant SPCC steel material lead 4 frame, including a frame body 3, the frame body 3 frame 1 has at least one placement unit, the placement unit includes a frame 1 and a pin 2, the pin 2 is arranged at the bottom of the frame 1, and the lead 4 is arranged on the outside of the pin 2, the pin 2 is connected to the lead 4, which ensures the stable placement of the chip and realizes the efficient connection between the chip and the external circuit. In addition, the number of pins 2 arranged at the bottom of the frame 1 has been carefully calculated to ensure that each chip can be fully supported and connected, a through hole 1 5 is arranged on one side of the frame body 3, a through hole 2 6 is arranged on the same side of the frame body 3 as the through hole 1 5, a through hole 3 7 is arranged on the side of the frame body 3 away from the through hole 1 5, a through hole 4 8 is arranged on the side of the frame body 3 away from the through hole 1 5, and a reinforcing rib 9 is arranged in the middle of the frame body 3.

[0027] The frame body 3 is provided with 12 rows and 32 columns, with a total of 384 placement units.

[0028] The through hole 1 5 and the through hole 2 6 are arranged in pairs, and the number of the through hole 1 5 and the number of the through hole 2 6 are the same.

[0029] Through hole three 7 and through hole four 8 are arranged in pairs, and the number of through hole three 7 and through hole four 8 is the same.

[0030] The design of through hole one, through hole two, through hole three and through hole four not only meets the positioning requirements during the production and assembly process, but also facilitates subsequent testing and maintenance work. At the same time, the number and positions of the through holes have been carefully calculated and optimized to ensure the best positioning and fixing effects without affecting the overall strength and stability of the frame.

[0031] The reinforcing ribs 9 are cleverly arranged at the gaps between every four adjacent rows of placement units to form a stable supporting structure. This design not only enhances the overall strength of the frame, but also improves its ability to resist bending and twisting, so that the frame can maintain better stability when subjected to external forces.

[0032] Eight pins 2 are provided at the bottom of each frame 1 .

[0033] The number of pins 2 and 4 is the same.

[0034] The frame body 3 is stamped from high-strength, corrosion-resistant SPCC steel material, which has excellent mechanical properties and corrosion resistance, and can ensure that the frame maintains a stable shape and performance during long-term use, and effectively resists erosion from the external environment.

[0035] Working principle: The frame is designed with reinforcing ribs 9, which are arranged in the gaps between every four adjacent rows of placement units, effectively enhancing the overall structural strength of the frame and improving its ability to resist bending and twisting, so that the frame can better maintain its shape and stability when subjected to external forces, thereby extending its service life. The frame also has a reasonable through-hole design, with through-hole one 5 and through-hole two 6 arranged in pairs, and through-hole three 7 and through-hole four 8 also arranged in pairs. Such a design not only meets the positioning requirements during the production and assembly process, but also facilitates subsequent testing and maintenance work. At the same time, the number and positions of the through-holes have been carefully calculated and optimized to ensure that the overall strength and stability of the frame are not affected.

[0036] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength, corrosion-resistant SPCC steel lead frame, comprising a frame body (3), characterized in that: The frame body (3) has at least one placement unit, and the placement unit includes a frame body (1) and a pin (2), wherein the pin (2) is arranged at the bottom of the frame body (1), and a lead (4) is arranged on the outer side of the pin (2), and the pin (2) is connected to the lead (4), a through hole 1 (5) is arranged on one side of the frame body (3), a through hole 2 (6) is arranged on the same side of the frame body (3) as the through hole 1 (5), a through hole 3 (7) is arranged on the side of the frame body (3) away from the through hole 1 (5), and a through hole 4 (8) is arranged on the side of the frame body (3) away from the through hole 1 (5), and a reinforcing rib (9) is arranged in the middle of the frame body (3).

2. A high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: The frame body (3) is provided with 12 rows and 32 columns, with a total of 384 placement units.

3. A high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: The through hole one (5) and the through hole two (6) are arranged in pairs, and the number of the through hole one (5) and the number of the through hole two (6) are the same.

4. The high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: The through hole three (7) and the through hole four (8) are arranged in pairs, and the number of the through hole three (7) and the through hole four (8) is the same.

5. The high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: The reinforcing ribs (9) are arranged at the gaps between every four adjacent rows of placement units.

6. The high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: Eight pins (2) are arranged at the bottom of each frame (1).

7. The high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: The number of the pins (2) is the same as the number of the leads (4).

8. The high-strength, corrosion-resistant SPCC steel lead frame according to claim 1, characterized in that: The frame body (3) is obtained by stamping high-strength corrosion-resistant SPCC steel material.

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