Novel die bonding glue disc

Abstract

The utility model discloses a novel die bonding glue disc, comprising an annular body and a stop ring, the top surface of the annular body is provided with a plurality of concentric annular grooves, two concentric annular grooves adjacent to each other inside and outside are communicated, and the stop ring is arranged between two adjacent concentric annular grooves. The depth of the concentric annular groove located in the inner ring is larger than that of the concentric annular groove located in the outer ring. The stop rings are detachably installed on the annular body and located in the concentric annular grooves, and the stop rings are used for separating every two adjacent concentric annular grooves. The solid crystal glue disc is simple and novel in structure, waste of solid crystal glue can be effectively reduced, and production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED packaging, in particular to a novel die-bonding adhesive disc. Background Art

[0002] As a new type of solid-state semiconductor device, LEDs are now widely used in various industries due to their advantages such as small size, light weight, high luminous efficiency, energy saving and environmental protection. In the current die-bonding process of LED packaging, the die-bonding adhesive is stored in a die-bonding adhesive tray. A dispensing needle is then dipped into the adhesive tray and moved to the position of the chip to dispense the adhesive.

[0003] However, the commonly used die-bonding adhesive trays currently feature a single-ring cavity. During production, regardless of the production run, the tray must be filled with adhesive to a certain thickness each time. This results in a large amount of adhesive remaining in the tray after production, which cannot be recycled. This results in significant waste and increases production costs. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a new type of crystal bonding adhesive disc capable of reducing production costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a new type of die-bonding adhesive disc, comprising:

[0006] An annular body, wherein a top surface of the annular body is provided with a plurality of concentric annular grooves, wherein two adjacent concentric annular grooves are connected, and wherein the concentric annular groove located on the inner circle is deeper than the concentric annular groove located on the outer circle;

[0007] A stop ring is detachably mounted on the annular body and is located in the concentric annular groove. The stop ring is used to separate two adjacent concentric annular grooves.

[0008] In one embodiment, the number of the concentric annular grooves is two.

[0009] In one embodiment, the top surface of the stop ring is lower than, flush with, or higher than the top surface of the annular body.

[0010] In one embodiment, the widths of two adjacent concentric annular grooves are equal or unequal.

[0011] In one embodiment, an annular slot is provided on the annular body, and the bottom end of the stop ring can be detachably inserted into the annular slot.

[0012] In one embodiment, the annular slot is provided near a connecting point between two adjacent concentric annular grooves.

[0013] In one embodiment, the outer peripheral wall of the stop ring abuts against a vertical wall formed at the connection point of two adjacent concentric annular grooves.

[0014] In one embodiment, among the two adjacent concentric annular grooves, the bottom surface of the concentric annular groove located on the outer circle is inclined toward the center of the bottom surface of the annular body to form an inclined surface.

[0015] In one embodiment, the inclination angle of the inclined surface is less than or equal to 10°.

[0016] The beneficial effects of the present invention are: the structure of the new solid crystal glue disc is simple and novel. After the detachable stop ring is installed on the annular body, the solid crystal glue disc can be divided into at least two annular cavities with different depths by an integral annular cavity, thereby reducing the glue storage capacity of the single-annular cavity. In this way, when the production task volume is small, only the single-annular cavity needs to be filled, which effectively avoids the waste caused by using a large-capacity glue disc when the production quantity is small, and saves production costs; and when the production task volume is large, it is only necessary to fill the double-annular cavity to ensure that the glue disc can store enough solid crystal glue. At the end of use, when the thickness of the solid crystal glue in the glue disc is too low and it is not convenient for the glue dispensing needle to pick up the glue, it is only necessary to remove the stop ring to gather the remaining glue in the shallow cavity into the deep cavity, effectively increasing the thickness of the solid crystal glue, which is beneficial for the glue dispensing needle to pick up the glue, and improving the utilization rate of the solid crystal glue, thereby saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a top view of the novel die-bonding adhesive tray according to the first embodiment of the present utility model;

[0019] Figure 2 This is a partial cross-sectional view of a novel die-bonding adhesive tray according to the first embodiment of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of a novel die-bonding adhesive tray according to the second embodiment of the present invention.

[0021] Description of Figure Numbers:

[0022] 1. annular body; 11. concentric annular groove; 12. annular slot; 13. vertical wall;

[0023] 2. Stop ring. DETAILED DESCRIPTION

[0024] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

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

[0026] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0028] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. If the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0029] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0030] Example 1

[0031] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the present invention is: a new type of solid crystal adhesive disc, comprising an annular body 1 and a stop ring 2, the top surface of the annular body 1 is provided with a plurality of concentric annular grooves 11, and the two adjacent concentric annular grooves 11 inside and outside are connected, and among the two adjacent concentric annular grooves 11, the depth of the concentric annular groove 11 located in the inner circle is greater than the concentric annular groove 11 located in the outer circle, and the widths of the two adjacent concentric annular grooves 11 are equal or unequal; the stop ring 2 can be detachably mounted on the annular body 1 and is located in the concentric annular groove 11, and the stop ring 2 is used to separate the two adjacent concentric annular grooves 11.

[0032] In this embodiment, there are two concentric annular grooves 11, and therefore, only one stop ring 2 is required. In other embodiments, when there are more than two concentric annular grooves 11, multiple stop rings 2 may be provided, and in this case, different stop rings 2 have different diameters.

[0033] The top surface of the stop ring 2 can be lower than, flush with, or higher than the top surface of the annular body 1 , and can be set specifically according to actual needs. In this embodiment, the top surface of the stop ring 2 is flush with the top surface of the annular body 1 .

[0034] Optionally, an annular slot 12 is provided on the annular body 1 , and the bottom end of the stop ring 2 can be detachably inserted into the annular slot 12 . Preferably, the annular slot 12 is provided near the connection point of two adjacent concentric annular grooves 11 .

[0035] After removing the stop ring 2, in order to allow the residual bonding glue in the shallow cavity to flow smoothly into the deep cavity, the bottom surface of the two adjacent concentric annular grooves 11 located on the outer circle is tilted toward the center of the bottom surface of the annular body 1 to form an inclined surface, and the inclination angle of the inclined surface is preferably less than or equal to 10°.

[0036] Example 2

[0037] Please refer to Figure 3, Example 2 of the present invention is a parallel technical solution of Example 1, and the only difference from Example 1 is that: no annular slot is provided on the annular body 1. Since there is a height difference between the two adjacent concentric annular grooves 11, a vertical wall 13 is formed at the connection between the two. In this embodiment, when the stop ring 2 is installed on the annular body 1, the outer peripheral wall of the stop ring 2 contacts the vertical wall 13 formed at the connection between the two adjacent concentric annular grooves 11, which can effectively avoid the phenomenon of the annular slot accommodating the solid crystal glue, thereby reducing the waste of the solid crystal glue to a greater extent and saving production costs.

[0038] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A new type of die-bonding adhesive tray, characterized by: include An annular body, wherein a top surface of the annular body is provided with a plurality of concentric annular grooves, wherein two adjacent concentric annular grooves are connected, and wherein the concentric annular groove located on the inner circle is deeper than the concentric annular groove located on the outer circle; A stop ring is detachably mounted on the annular body and is located in the concentric annular groove. The stop ring is used to separate two adjacent concentric annular grooves.

2. The novel die-bonding adhesive tray according to claim 1 is characterized in that: The number of the concentric annular grooves is two.

3. The novel die-bonding adhesive tray according to claim 1 is characterized in that: The top surface of the stop ring is arranged lower than, flush with or higher than the top surface of the annular body.

4. The novel die-bonding adhesive tray according to claim 1 is characterized in that: The widths of two adjacent concentric annular grooves are equal or unequal.

5. The novel die-bonding adhesive tray according to claim 1 is characterized in that: An annular slot is provided on the annular body, and the bottom end of the stop ring can be detachably inserted into the annular slot.

6. The novel die-bonding adhesive tray according to claim 5, characterized in that: The annular slot is arranged close to the connecting point of two adjacent concentric annular grooves.

7. The novel die-bonding adhesive tray according to claim 1 is characterized in that: The outer peripheral wall of the stop ring abuts against a vertical wall formed at the connection point of two adjacent concentric annular grooves.

8. The novel die-bonding adhesive tray according to claim 1 is characterized in that: In two adjacent concentric annular grooves, the bottom surface of the concentric annular groove located on the outer circle is inclined toward the center of the bottom surface of the annular body to form an inclined surface.

9. The novel die-bonding adhesive tray according to claim 8, characterized in that: The inclination angle of the inclined surface is less than or equal to 10°.

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