CN219226227U

CN219226227U - Lead frame bonding fixation clamp

Info

Publication number: CN219226227U
Application number: CN202222469248.5U
Authority: CN
Inventors: 罗小平; 郑建国
Original assignee: Chonghui Semiconductor Shenzhen Co ltd
Current assignee: Chonghui Semiconductor Shenzhen Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-06-20
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a lead frame bonding fixing clamp, and particularly relates to the technical field of lead frame clamps, which comprises a fixing seat and a lead frame, wherein four L-shaped clamping rods are arranged at the top end of the fixing seat, the four L-shaped clamping rods are respectively arranged at the outer ends of four corners of the lead frame, four connecting rods are arranged between the end parts of the four L-shaped clamping rods, movable cavities are formed at the two ends of the L-shaped clamping rods, a first limiting plate is arranged in the movable cavities, four sliding grooves are formed in the top end of the fixing seat, sliding blocks are arranged in the sliding grooves, and a first threaded rod is arranged in the sliding grooves. The clamping fixture is used for clamping and fixing the lead frames through the four movable L-shaped clamping rods, the clamping and fixing are stable, the lead frames with different sizes can be clamped and fixed, the applicability is high, the condition that the clamp is replaced back and forth when the lead frames with different specifications are bonded is avoided, and the use is convenient.

Description

Lead frame bonding fixation clamp

Technical Field

The utility model relates to the technical field of lead frame clamps, in particular to a lead frame bonding fixing clamp.

Background

The lead frame is a chip carrier of an integrated circuit, is a key structural member for realizing the electric connection between the lead-out end of the internal circuit of the chip and the outer lead by means of bonding materials and forming an electric loop, plays a role of a bridge for connecting the integrated circuit with an external lead, and is an important basic workpiece in industry. Wire bonding is a process that uses thin metal wires, and uses heat, pressure and ultrasonic energy to tightly bond metal wires with bonding pads of a substrate, so as to realize electrical interconnection between chips and the substrate and information intercommunication between chips. Because of the simple wire bonding process and low cost, the wire bonding process is often used in the semiconductor chip packaging process. The lead wire needs to be clamped and fixed on the lead frame when being bonded with the lead frame.

At present, when the lead frame bonding fixing clamp is in actual use, the size of the clamping fixing structure is mostly fixed, so that the lead frame with one size can be clamped and fixed, the applicability is not strong, and when the lead frames with different specifications are required to be bonded, different clamps are required to be replaced, and the use is inconvenient.

Therefore, it is necessary to invent a lead frame bonding fixture to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a lead frame bonding fixing clamp, which clamps and fixes a lead frame through four movable L-shaped clamping rods, is relatively stable in clamping and fixing, can clamp and fix lead frames with different sizes, has relatively strong applicability, avoids the condition that the clamp is replaced back and forth when the lead frames with different specifications are bonded, and is relatively convenient to use, so as to solve the defects in the technology.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a lead frame bonding mounting fixture, includes fixing base and lead frame, the lead frame erects on the fixing base top, the fixing base top is equipped with four L type clamping bars, four L type clamping bars establish respectively at the four corners outer end of lead frame, four be equipped with four connecting rods between the tip of L type clamping bar, the connecting rod is established in the lead frame outside, movable chamber has all been seted up at the both ends of L type clamping bar, movable intracavity portion is equipped with first limiting plate, first limiting plate outer end contacts with movable intracavity wall, the connecting rod both ends pass the one end of two L type clamping bars respectively and extend into movable intracavity portion, connecting rod tip and first limiting plate one end fixed connection, four spouts have been seted up on the fixing base top, the spout is inside to be equipped with the slider, slider top and connecting rod bottom fixed connection, the spout is inside to be equipped with first threaded rod one end and pass the slider and extend to the fixing base outside, through threaded connection between first threaded rod and the slider, all pass through the bearing connection between first both ends and the spout inner wall.

Preferably, one end of the first threaded rod is fixedly provided with a rotating handle, and the rotating handle is arranged outside the fixing seat and is convenient for driving the first threaded rod to rotate.

Preferably, the top end of the lead frame is provided with a pressing plate, so that the lead frame is conveniently fixed, and the lead frame can be stably fixed on a top end plane.

Preferably, the bonding port is formed in the top end of the pressing plate, the bonding port penetrates through the pressing plate, and the bonding port is formed in the top of a bonding position on the lead frame, so that the bonding equipment is convenient for bonding the lead on the lead frame.

Preferably, the fixing base top front and back side all is equipped with two movable connection boards, the inboard top of movable connection board is fixed to be equipped with the second limiting plate, second limiting plate bottom contacts with the clamp plate top, two spacing movable slots have all been seted up to the fixing base front and back side, the movable connection board bottom extends into spacing movable slot inside, is convenient for carry out spacing fixedly to the clamp plate.

Preferably, the inside second threaded rod that is equipped with of spacing movable groove, rotate between second threaded rod bottom and the spacing movable groove inner wall and be connected, the second threaded rod top pass the movable connection board and with movable connection board between threaded connection, be convenient for drive movable connection board at spacing movable groove motion.

Preferably, the outer end of the second threaded rod is fixedly provided with a rotary table, and the rotary table is arranged at the bottom of the movable connecting plate, so that the second threaded rod is conveniently driven to rotate.

In the technical scheme, the utility model has the technical effects and advantages that:

1. through rotating the rotating handle, the rotating handle drives the first threaded rod to rotate, the sliding block drives the connecting rod to move inwards along with the rotation of the first threaded rod, the connecting rod drives the L-shaped clamping rods to move inwards, so that the edges of the lead frames are clamped and fixed by the four L-shaped clamping rods, the lead frames are clamped and fixed by the four movable L-shaped clamping rods, the lead frames with different sizes can be clamped and fixed, the applicability is higher, the situation that clamps are replaced back and forth when the lead frames with different specifications are bonded is avoided, and the use is more convenient;

2. through putting the pressing plate on the top end of the lead frame, rotating the turntable, the turntable drives the second threaded rod to rotate, the movable connecting plate drives the second limiting plate to move downwards along with the rotation of the second threaded rod, and the second limiting plate can limit and fix the pressing plate, so that the situation that the lead frame cannot shake during bonding can be guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic perspective view of a fixing base, an L-shaped clamping rod and a connecting rod according to the present utility model;

FIG. 3 is a schematic perspective view of a fixing base of the present utility model;

FIG. 4 is a schematic view of a partial perspective cross-sectional structure of an L-shaped clamping rod of the utility model;

fig. 5 is a schematic perspective view of the movable connecting plate, the second limiting plate, the second threaded rod and the turntable.

Reference numerals illustrate:

1 fixing base, 2 lead frame, 3L type clamping rod, 4 connecting rod, 5 movable chamber, 6 first limiting plate, 7 spout, 8 slider, 9 first threaded rod, 10 changers, 11 clamp plates, 12 bonding mouths, 13 movable connecting plates, 14 second limiting plate, 15 spacing movable groove, 16 second threaded rod, 17 carousel.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a lead frame bonding fixing clamp as shown in fig. 1-4, which comprises a fixing seat 1 and a lead frame 2, wherein the lead frame 2 is arranged at the top end of the fixing seat 1, four L-shaped clamping rods 3 are arranged at the top end of the fixing seat 1, the four L-shaped clamping rods 3 are respectively arranged at the outer ends of four corners of the lead frame 2, four connecting rods 4 are arranged between the ends of the four L-shaped clamping rods 3, the connecting rods 4 are arranged at the outer side of the lead frame 2, movable cavities 5 are respectively arranged at the two ends of the L-shaped clamping rods 3, a first limiting plate 6 is arranged in the movable cavities 5, the outer ends of the first limiting plates 6 are in contact with the inner walls of the movable cavities 5, the two ends of the connecting rods 4 respectively penetrate through one ends of the two L-shaped clamping rods 3 and extend into the movable cavities 5, the end of the connecting rods 4 are fixedly connected with one end of the first limiting plate 6, four sliding grooves 7 are formed in the top end of the fixing seat 1, sliding blocks 8 are arranged in the sliding grooves 7, the top ends of the sliding blocks 8 are fixedly connected with the bottom ends of the connecting rods 4, first sliding grooves 7 are arranged in the inner sides of the sliding grooves 9, first sliding rods 9 are respectively, the first sliding rods 9 are respectively pass through the first sliding rods 9 and extend through the first sliding rods 9 and the first sliding rods 9 to the outer sides and the first sliding rods 10 are respectively, and are fixedly connected with one end of the threaded rods 10 through the threaded rods and the threaded rods 10.

The lead frame 2 is placed between the four L-shaped clamping rods 3, the rotating handle 10 is rotated, the rotating handle 10 drives the first threaded rod 9 to rotate, and the first threaded rod 9 is in threaded connection with the sliding block 8, so that the sliding block 8 drives the connecting rod 4 to move inwards along with the rotation of the first threaded rod 9, the connecting rod 4 drives the L-shaped clamping rods 3 to move inwards, the edges of the lead frame 2 can be clamped and fixed by the four L-shaped clamping rods 3.

The utility model provides a lead frame bonding fixing clamp as shown in fig. 1 and 5, wherein a pressing plate 11 is arranged at the top end of a lead frame 2, a bonding port 12 is formed at the top end of the pressing plate 11, the bonding port 12 penetrates through the pressing plate 11, and the bonding port 12 is arranged at the top of a bonding position on the lead frame 2.

The fixed seat 1 top front and back side all is equipped with two movable connection boards 13, the inboard top of movable connection board 13 is fixed to be equipped with second limiting plate 14, second limiting plate 14 bottom contacts with clamp plate 11 top, two spacing movable slots 15 have all been seted up to the fixing seat 1 front and back side, inside spacing movable slot 15 is stretched into to movable connection board 13 bottom, spacing movable slot 15 inside is equipped with second threaded rod 16, rotate between second threaded rod 16 bottom and the spacing movable slot 15 inner wall and be connected, threaded connection between movable connection board 13 and the movable connection board 13 is passed on second threaded rod 16 top, second threaded rod 16 outer end is fixed with carousel 17, carousel 17 is established in movable connection board 13 bottom.

After the lead frame 2 is clamped and fixed, the pressing plate 11 is placed at the top end of the lead frame 2, the bonding port 12 is positioned at the bonding position at the top end of the lead frame 2, the turntable 17 is rotated, the turntable 17 drives the second threaded rod 16 to rotate, and the movable connecting plate 13 moves downwards along with the rotation of the second threaded rod 16 due to the threaded connection between the second threaded rod 16 and the movable connecting plate 13, the movable connecting plate 13 drives the second limiting plate 14 to move downwards, and the second limiting plate 14 limits and fixes the pressing plate 11, so that the lead frame 2 can not shake during bonding.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a lead frame bonding mounting fixture, includes fixing base (1) and lead frame (2), lead frame (2) are established on fixing base (1) top, its characterized in that: four L-shaped clamping rods (3) are arranged at the top end of the fixing seat (1), four L-shaped clamping rods (3) are respectively arranged at the outer ends of four corners of the lead frame (2), four connecting rods (4) are arranged between the ends of the L-shaped clamping rods (3), the connecting rods (4) are arranged at the outer sides of the lead frame (2), movable cavities (5) are respectively arranged at the two ends of the L-shaped clamping rods (3), a first limiting plate (6) is arranged in the movable cavities (5), the outer ends of the first limiting plates (6) are contacted with the inner wall of the movable cavities (5), two ends of each connecting rod (4) respectively penetrate through one ends of the two L-shaped clamping rods (3) and extend into the inner parts of the movable cavities (5), the end parts of each connecting rod (4) are fixedly connected with one end of each first limiting plate (6), four sliding grooves (7) are formed in the top end of the fixing seat (1), sliding blocks (8) are respectively arranged in the sliding grooves (7), the top ends of the sliding blocks (8) are fixedly connected with the bottom ends of the connecting rods (4), the sliding blocks (7), the inner ends of the sliding grooves (7) are respectively provided with one threaded rod (9), the first threaded rods (9) extend through the first threaded rods (9) and extend to the first threaded rods (9) and extend out of the first threaded rods (9), the two ends of the first threaded rod (9) are rotatably connected with the inner wall of the chute (7) through bearings.

2. The leadframe bonding fixture of claim 1, wherein: one end of the first threaded rod (9) is fixedly provided with a rotating handle (10), and the rotating handle (10) is arranged on the outer side of the fixed seat (1).

3. The leadframe bonding fixture of claim 1, wherein: the top end of the lead frame (2) is provided with a pressing plate (11).

4. A leadframe bonding fixture according to claim 3, wherein: the bonding port (12) is formed in the top end of the pressing plate (11), the bonding port (12) penetrates through the pressing plate (11), and the bonding port (12) is formed in the top of a bonding position on the lead frame (2).

5. A leadframe bonding fixture according to claim 3, wherein: the fixing seat is characterized in that two movable connecting plates (13) are arranged on the front side and the rear side of the top end of the fixing seat (1), a second limiting plate (14) is fixedly arranged on the top end of the inner side of the movable connecting plate (13), the bottom end of the second limiting plate (14) is in contact with the top end of the pressing plate (11), two limiting movable grooves (15) are formed in the front side and the rear side of the fixing seat (1), and the bottom end of the movable connecting plate (13) extends into the limiting movable grooves (15).

6. The leadframe bonding fixture of claim 5, wherein: the limiting movable groove (15) is internally provided with a second threaded rod (16), the bottom end of the second threaded rod (16) is rotationally connected with the inner wall of the limiting movable groove (15), and the top end of the second threaded rod (16) penetrates through the movable connecting plate (13) and is in threaded connection with the movable connecting plate (13).

7. The leadframe bonding fixture of claim 6, wherein: the outer end of the second threaded rod (16) is fixedly provided with a rotary table (17), and the rotary table (17) is arranged at the bottom of the movable connecting plate (13).