CN220543838U - Silica gel cushion block bonding jig - Google Patents

Abstract

The utility model discloses a silica gel cushion block bonding jig which comprises a metal cushion block, wherein a bonding structure is arranged on the metal cushion block and comprises six silica gel cushion block areas, six bosses and six silica gel cushion blocks; the utility model has simple structure and reasonable design, the silica gel cushion block has good elasticity and durability, and can better cope with vibration and brought stress in the bonding process, the bonding structure has better adaptability, and the problems of uneven and swaying of the surface of the frame are better solved, so that the bonding quality is improved, the problem of repeated blue film bonding is solved, and the problems of falling, wrinkling and breakage of the blue film are solved.

Description

Silica gel cushion block bonding jig

Technical Field

The utility model relates to the technical field of bonding jigs, in particular to a silica gel cushion block bonding jig.

Background

The high-power semiconductor is increasingly used in an aluminum strip wire bonding process, the surface mounting process used in the process is tin wire welding, the larger the chip is, the larger the stress is, the stress can pull and deform the base island, the base island cannot be in close contact with the cushion block in the bonding process, and the base island shakes in the wire bonding process to generate virtual welding.

The prior art has the following defects:

at present, in the bonding process, the metal cushion block is a gap between the base island and the metal cushion block which cannot be filled with a hard material, and at present, a layer of blue film is filled on the metal cushion block to solve the problem of uneven surface, but the blue film can fall off and fold to influence bonding quality, and the blue film can increase cost and has short service life.

Disclosure of Invention

The utility model aims to provide a silica gel cushion block bonding jig for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a silica gel cushion bonding tool, includes the metal cushion, the length direction, the direction of height and the width direction of metal cushion are first direction, second direction and third direction respectively, be provided with the laminating structure on the metal cushion, the laminating structure includes:

six silica gel cushion block areas, wherein the six silica gel cushion block areas are arranged on the upper surface of the metal cushion block, and the six silica gel cushion block areas are arranged in the first direction in parallel at intervals;

six bosses, wherein the six bosses are arranged on the upper surface of the metal cushion block, and the six bosses are arranged in the first direction at intervals in parallel;

six silica gel cushion blocks, six the installation of silica gel cushion block is pasted in six silica gel cushion block areas.

Preferably, the bottom of the metal cushion block is provided with a first clamping groove in the first direction, and two sides of the metal cushion block are respectively provided with a second clamping groove in the first direction.

Preferably, the width of the first clamping groove in the third direction is 4.0mm, and the width of the second clamping groove in the first direction is 5.5mm.

Preferably, the length of six bosses in the first direction is 1.3mm, the length of six bosses in the second direction is 0.5mm, and the length of six bosses in the third direction is 9.5mm.

Preferably, the lengths of the six silica gel pad areas in the first direction are 5mm, the lengths of the six silica gel pad areas in the second direction are 1.95mm, and the lengths of the six silica gel pad areas in the third direction are 6mm.

Preferably, the surfaces of the six silica gel cushion blocks are treated in a sand blasting mode.

Preferably, the first direction, the second direction and the third direction are perpendicular to each other.

Compared with the prior art, the utility model has the beneficial effects that:

1. this silica gel cushion bonding tool through being provided with the laminating structure, and the laminating structure includes six silica gel cushion regions, six bosss and six silica gel cushion, and the silica gel cushion has good elasticity and durability, can handle the vibration in the bonding technology better and the stress that brings, and the laminating structure that sets up has better adaptability, better solution frame surface unevenness and rocks the problem to improve bonding quality, solve the problem of repeated pad blue membrane, solve the blue membrane and drop, fold, damaged problem.

2. This silica gel cushion bonding tool through adopting the sand blasting mode to handle six silica gel cushion surfaces, guarantees the roughness on silica gel cushion surface, ensures that silica gel cushion and work piece surface laminate completely to do not have the phenomenon that the frame was taken up at the pressfitting process, do not influence the problem of routing in-process frame conveying position dislocation, grind six silica gel cushion to certain height then, and make silica gel cushion roughness be 6.4, guarantee the compactness of frame contact, provide stable frame position conveying precision, adapt to the unevenness on frame surface better and rock.

Drawings

FIG. 1 is an overall schematic of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a side cross-sectional view of the present utility model;

FIG. 4 is a schematic view of a portion of the structure of the present utility model;

in the figure: 110. a metal pad; 120. a silica gel pad area; 121. a boss; 122. a metal plane; 130. a first clamping groove; 140. a second clamping groove; x, a first direction; y, the second direction; and a third direction.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

Examples

Referring to fig. 1-4, the present utility model provides a technical solution for a bonding jig for a silica gel pad: comprises a metal cushion block 110, the length direction, the height direction and the width direction of the metal cushion block 110 are respectively a first direction x, a second direction y and a third direction z, a bonding structure is arranged on the metal cushion block 110, the bonding structure comprises six silica gel cushion block areas 120, six bosses 121 and six silica gel cushion blocks, the six silica gel cushion block areas 120 are arranged on the upper surface of the metal cushion block 110, the six silica gel cushion block areas 120 are arranged in the first direction x, the six bosses 121 are arranged on the upper surface of the metal cushion block 110 at intervals in parallel, the six silica gel cushion blocks are arranged and bonded in the six silica gel cushion block areas 120, the length of the six bosses 121 in the first direction x is 1.3mm, the length of the six bosses 121 in the second direction y is 0.5mm, the length of the six bosses 121 in the third direction z is 9.5mm, the tolerance is controlled to be 0-20 um, the distance between the six bosses 121 is 18.45mm, the six bosses 121 respectively correspond to six pins on the frame, the length of the six silica gel cushion block areas 120 in the first direction x is 5mm, the length of the six silica gel cushion block areas 120 in the second direction y is 1.95mm, the length of the six silica gel cushion block areas 120 in the third direction z is 6mm, the six silica gel cushion blocks are arranged at a height which is 0.05mm higher than the metal plane 122, the bottom of the metal cushion block 110 is provided with a first clamping groove 130 in the first direction x, the two sides of the metal cushion block 110 are respectively provided with a second clamping groove 140 in the first direction x, the width of the first clamping groove 130 in the third direction z is 4.0mm, the width of the second clamping groove 140 in the first direction x is 5.5mm, the surfaces of the six silica gel cushion blocks are processed in a sand blasting mode, the roughness of the surfaces of the silica gel cushion blocks is ensured, the complete fitting of the silica gel cushion blocks and the surfaces of workpieces is ensured, the phenomenon that the frame is carried up in the pressing process is avoided, and the problem of dislocation of the frame transmission position in the wire bonding process is not affected, and then, the six silica gel cushion blocks are ground to a certain height, the surface roughness of the silica gel cushion blocks is 6.4, the compactness of frame contact is ensured, stable frame position transmission precision is provided, and the surface roughness and the shaking of the frame are better adapted.

Further, the first direction x, the second direction y and the third direction z are perpendicular to each other.

The working principle of the utility model is as follows:

the utility model provides a silica gel cushion bonding tool is when using, through setting up the laminating structure, the laminating structure includes six silica gel cushion regions 120, six boss 121 and six silica gel cushion, six silica gel cushion installations are higher than metal level 122's high 0.05mm, six silica gel cushion surface adopts the sand blasting mode to handle, guarantee silica gel cushion surface's roughness, ensure that silica gel cushion and work piece surface laminate completely, and do not have the phenomenon that the frame was taken up at the pressfitting process, do not influence the problem of routing in-process frame transfer position dislocation, grind six silica gel cushion to certain height then, and make silica gel cushion surface roughness be 6.4, guarantee the compactness of frame contact, provide stable frame position conveying precision, adapt to the unevenness and the rocking of frame surface better.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a silica gel cushion bonding tool, includes metal cushion (110), its characterized in that: the length direction, the height direction and the width direction of the metal cushion block (110) are respectively a first direction (x), a second direction (y) and a third direction (z), a bonding structure is arranged on the metal cushion block (110), and the bonding structure comprises:

six silica gel cushion block areas (120), wherein six silica gel cushion block areas (120) are arranged on the upper surface of the metal cushion block (110), and six silica gel cushion block areas (120) are arranged in parallel at intervals in a first direction (x);

six bosses (121), wherein the six bosses (121) are arranged on the upper surface of the metal cushion block (110), and the six bosses (121) are arranged in the first direction (x) at intervals in parallel;

six silica gel cushion blocks, six the installation of silica gel cushion block is pasted six silica gel cushion block region (120).

2. The bonding jig for silica gel cushion blocks according to claim 1, wherein: the bottom of the metal cushion block (110) is provided with a first clamping groove (130) in the first direction (x), and two sides of the metal cushion block (110) are respectively provided with a second clamping groove (140) in the first direction (x).

3. The bonding jig for silica gel cushion blocks according to claim 2, wherein: the width of the first clamping groove (130) in the third direction (z) is 4.0mm, and the width of the second clamping groove (140) in the first direction (x) is 5.5mm.

4. The bonding jig for silica gel cushion blocks according to claim 1, wherein: the length of six bosses (121) in the first direction (x) is 1.3mm, the length of six bosses (121) in the second direction (y) is 0.5mm, and the length of six bosses (121) in the third direction (z) is 9.5mm.

5. The bonding jig for silica gel cushion blocks according to claim 1, wherein: the length of the six silica gel cushion block areas (120) in the first direction (x) is 5mm, the length of the six silica gel cushion block areas (120) in the second direction (y) is 1.95mm, and the length of the six silica gel cushion block areas (120) in the third direction (z) is 6mm.

6. The bonding jig for silica gel cushion blocks according to claim 1, wherein: and the surfaces of the six silica gel cushion blocks are treated in a sand blasting mode.

7. The bonding jig for silica gel cushion blocks according to claim 1, wherein: the first direction (x), the second direction (y) and the third direction (z) are perpendicular to each other.