A double-layer turnover pallet

Abstract

The utility model belongs to the technical field of semiconductor production auxiliary equipment, and specifically relates to a double-layer turnover tray. It includes: a bottom plate, a plurality of first bosses and a second boss; a plurality of first bosses are arranged in an array on the bottom plate, and the top of the first boss forms a first bearing surface; a plurality of second bosses are arranged in an array on the bottom plate, and the top of the second boss is not at the same height as the top of the first boss, and the top of the second boss forms a second bearing surface with a height different from the first bearing surface. The utility model is used to solve the problem of limited number of chips loaded on the turnover tray. By arranging two bosses of different heights on the bottom plate, the first bearing surface and the second bearing surface formed by the top surface of the first boss and the top surface of the second boss are not at the same height, so that the chips placed on the bosses can effectively utilize the placement space of different heights, make full use of the space, increase the number of chips placed on a bottom plate, and improve the transportation efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of semiconductor production auxiliary equipment, and specifically relates to a double-layer turnover tray. Background Art

[0002] The surfaces on both sides of the full-pressed chip need corrosion and passivation protection. Therefore, when the full-pressed chip is placed to dry after the glue is injected around the edge, the glue-injected part around the edge cannot directly contact objects.

[0003] At present, a turntable is usually provided with a plurality of through holes on an aluminum plate, and the chip is placed directly on the surface of the aluminum plate. However, the fully crimped chip cannot contact the aluminum plate after double-sided glue injection. Therefore, a boss is provided on the turntable developed for this situation, and the boss is used to contact the non-glue-injected part in the center of the fully crimped chip. However, if the chip placed on the boss is large in size, the glue on the periphery of the chip on the bosses close to each other will contact each other, thus affecting the production quality of the chip. Therefore, the arrangement of the bosses cannot be too dense, which affects the transfer volume of the turntable and thus affects the transfer efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a double-layer turnover tray for solving the problem of the limited number of chips loaded on the turnover tray.

[0005] The utility model solves the above technical problems with the following technical solutions: a double-layer turnover pallet, comprising:

[0006] Base plate;

[0007] A plurality of first bosses are arranged in an array on the bottom plate, and the tops of the first bosses form a first bearing surface;

[0008] A plurality of second bosses are arranged in an array on the bottom plate, the top of the second boss is not at the same height as the top of the first boss, and the top of the second boss forms a second bearing surface with a height different from that of the first bearing surface.

[0009] Compared with the prior art, the above technical solution has the following beneficial effects:

[0010] By arranging two bosses of different heights on the base plate, the first bearing surface formed by the top surface of the first boss and the second bearing surface formed by the top surface of the second boss are not at the same height, so that the chips placed on the bosses can effectively utilize the placement space at different heights, fully utilizing the space, increasing the number of chips placed on a base plate, and improving the transportation efficiency.

[0011] Furthermore, a plurality of the first bosses and a plurality of the second bosses are staggered along a first direction and a second direction that are perpendicular to each other.

[0012] Furthermore, the bottom plate is provided with a plurality of ventilation holes arranged in an array.

[0013] Furthermore, the ventilation holes are arranged at intervals around the first boss and / or the second boss.

[0014] Furthermore, a connecting rod is provided at the bottom of the first boss and the second boss, and the connecting rod is detachably connected to the bottom plate.

[0015] Furthermore, the first boss and the second boss are provided with a protective coating at least on the top thereof.

[0016] Furthermore, the protective coating is provided on the outer surfaces of the bottom plate, the first boss and the second boss.

[0017] Furthermore, it also includes handles, which are symmetrically arranged on both sides of the top surface of the bottom plate, and the top surface of the handles is higher than the first bearing surface and the second bearing surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 for Figure 1 Schematic diagram of the overall structure from another perspective.

[0021] Reference numerals:

[0022] 1. Bottom plate; 2. First boss; 3. Second boss;

[0023] 4. First bearing surface; 5. Second bearing surface;

[0024] 6. Ventilation holes;

[0025] 7. Connecting rod;

[0026] 8. Carry handle. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] Example

[0033] like Figure 1-2 As shown, the utility model provides a double-layer turnover pallet, which includes: a bottom plate, a plurality of first bosses and a plurality of second bosses.

[0034] A plurality of first boss arrays are arranged on the base plate, the tops of the first bosses form a first bearing surface, and a plurality of second boss arrays are arranged on the base plate, the tops of the second bosses are not at the same height as the tops of the first bosses, the tops of the second bosses are higher than the first bosses, and the tops of the second bosses form a second bearing surface whose height is different from that of the first bearing surface.

[0035] By arranging two bosses of different heights on the base plate, the first bearing surface formed by the top surface of the first boss and the second bearing surface formed by the top surface of the second boss are not at the same height, so that the chips placed on the bosses can effectively utilize the placement space at different heights, fully utilizing the space, increasing the number of chips placed on a base plate, and improving the transportation efficiency.

[0036] Specifically, a plurality of the first bosses and a plurality of the second bosses are staggered along a first direction and a second direction perpendicular to each other, wherein the first direction and the second direction are respectively a horizontal direction and a vertical direction, and the first bosses and the second bosses are arranged in an array, and on this basis, the first bosses and the second bosses are staggered in the horizontal and vertical directions to fill the gaps spaced apart from each other, and then a sufficient number of the first bosses and the second bosses are arranged on the bottom plate to the maximum extent to improve the transfer efficiency.

[0037] The bottom plate is provided with a plurality of ventilation holes arranged in an array;

[0038] Specifically, the ventilation holes are arranged at intervals around the first boss and / or the second boss. On the one hand, the ventilation holes can reduce the overall weight of the turnover pallet. The ventilation holes are evenly spaced around the first boss and the second boss, which can minimize the weight of the bottom plate. On the other hand, air circulation can be maintained between the upper and lower parts of the bottom plate, thereby improving the drying speed of the chips placed on the bosses.

[0039] A connecting rod is provided at the bottom of the first boss and the second boss, and the connecting rod is detachably connected to the bottom plate. The connecting rod can be a screw rod, etc., which is screwed to the bottom plate to form a detachable connection, which is convenient for replacement, maintenance and repair of the boss; at the same time, the bottom end of the connecting rod does not extend out of the bottom surface of the bottom plate.

[0040] To reduce scratches when the chip is placed, the first boss and the second boss are provided with a protective coating at least on the top thereof. The protective coating may be a polytetrafluoroethylene protective coating, which can minimize collision and scratches between the chip surface and the boss surface.

[0041] In order to prevent the chip from being damaged to the greatest extent, the outer surfaces of the bottom plate, the first boss and the second boss are provided with the protective coating.

[0042] In order to facilitate the operator to hold the transfer tray, a handle is provided on the bottom plate, and the handle is symmetrically arranged on both sides of the top surface of the bottom plate. The top surface of the handle is higher than the first bearing surface and the second bearing surface, that is, the handle is higher than the top of the first boss and the second boss.

[0043] Since the top surface of the handle is higher than the highest second load-bearing surface, the trays can be stacked on each other to reduce the occupied space.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A double-layer turnover pallet, characterized in that: include: Base plate; A plurality of first bosses are arranged in an array on the bottom plate, and the tops of the first bosses form a first bearing surface; A plurality of second bosses are arranged in an array on the bottom plate, the top of the second boss is not at the same height as the top of the first boss, and the top of the second boss forms a second bearing surface with a height different from that of the first bearing surface.

2. The double-layer turnover pallet according to claim 1, characterized in that: A plurality of the first bosses and a plurality of the second bosses are staggeredly arranged along a first direction and a second direction perpendicular to each other.

3. The double-layer turnover pallet according to claim 2, characterized in that: The bottom plate is provided with a plurality of ventilation holes arranged in an array.

4. The double-layer turnover pallet according to claim 3, characterized in that: The ventilation holes are arranged at intervals around the first boss and / or the second boss.

5. The double-layer turnover pallet according to claim 1, characterized in that: A connecting rod is provided at the bottom of the first boss and the second boss, and the connecting rod is detachably connected to the bottom plate.

6. The double-layer turnover pallet according to claim 1, characterized in that: The first boss and the second boss are provided with a protective coating at least on the top thereof.

7. The double-layer turnover pallet according to claim 6, characterized in that: The protective coating is disposed on the outer surfaces of the bottom plate, the first boss and the second boss.

8. The double-layer turnover pallet according to claim 1, characterized in that: It also includes handles, which are symmetrically arranged on both sides of the top surface of the bottom plate, and the top surface of the handles is higher than the first bearing surface and the second bearing surface.

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