A platform compatible with multiple sizes of substrates

Abstract

The utility model discloses a kind of platform compatible with multiple size substrates, multiple air extraction through holes are equipped on platform, and substrate is placed on platform upper surface. Platform edge is equipped with adjusting groove, support piece is equipped in adjusting groove, support piece upper surface is level with platform upper surface, support piece one end is connected with adjusting groove inner side, support piece can adjust length so that another end moves to near substrate edge below, can support different size substrate, so as to reduce the equipment cost required by platform when coating flux or ball mounting. Meanwhile, substrate edge and support piece end form clamping gap, it is convenient to grab substrate by clamping jaw after coating flux or ball mounting.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, and in particular to a platform compatible with substrates of various sizes. Background Technology

[0002] Before encapsulation, the substrate surface needs to be coated with flux or ball-planting material using a flux printing platform or a ball-planting platform. For example, Chinese Patent No. CN214672506U discloses a simple and efficient ball-planting device, which includes an adsorption platform and a stencil. The stencil includes a flux printing stencil and a ball-planting stencil. The adsorption platform is equipped with two independent vacuum lines, and the chip (substrate) to be ball-planted is adsorbed onto the adsorption platform through vacuum.

[0003] For example Figure 1 As shown, a rectangular platform 4 commonly used in the prior art is depicted. The rectangular platform 4 has multiple uniformly distributed evacuation holes, allowing the substrate to be adsorbed onto the platform through vacuum extraction. Simultaneously, recesses 41 are provided on both sides along the length of the rectangular platform 4. This type of rectangular platform 4 requires the width of the substrate to be equal to the width of the rectangular platform 4. After applying flux or ball bonding, the recesses 41 facilitate the gripping of the substrate. However, the aforementioned rectangular platform 4 is only suitable for substrates with a width equal to that of the rectangular platform 4, resulting in limited applicability. If vacuum adsorption of substrates of other sizes is required, custom-made rectangular platforms 4 of different sizes are necessary, increasing equipment costs.

[0004] In view of this, the present invention proposes a platform compatible with substrates of various sizes to solve the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the above-mentioned technology, this utility model provides a platform compatible with substrates of various sizes, which can reduce the equipment cost required for substrate coating flux or ball placement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A platform compatible with substrates of various sizes is provided. The platform has multiple air extraction holes, and the substrate is placed on the upper surface of the platform. An adjustment groove is provided at the edge of the platform, and a support member is provided in the adjustment groove. The upper surface of the support member is flush with the upper surface of the platform. One end of the support member is connected to the inner side of the adjustment groove. The length of the support member can be adjusted so that the other end can move close to the lower edge of the substrate, and a clamping gap is formed between the edge of the substrate and the end of the support member.

[0008] Preferably, the platform is rectangular, and at least one adjustment groove is provided on each side of the platform extending along the length direction, and the adjustment groove extends along the width direction of the platform.

[0009] Preferably, the width of the substrate is a, the width of the platform is b, the length of the adjustment groove extending along the width direction of the platform is c, and b-2c<a≤b.

[0010] Preferably, the support includes an adjusting bolt and a spring. The adjusting bolt includes a screw and a head, and the spring is sleeved on the screw. The inner side of the adjusting groove is provided with a threaded hole for connecting with the screw, and the upper surface of the head and the spring is flush with the upper surface of the platform.

[0011] Preferably, the depth of the threaded hole is f, and the length of the adjusting bolt (21) is d < c + f.

[0012] Preferably, the platform has multiple adjustment slots on both sides extending along its length, with equal spacing between the adjustment slots on the same side, and the adjustment slots on both sides corresponding one-to-one along the width of the platform.

[0013] Preferably, the clamping gap is 1~5mm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The platform edge of this utility model is provided with an adjustment groove, and a support member is provided in the adjustment groove. The length of the support member can be adjusted so that the other end can move closer to the bottom edge of the substrate, which can support substrates of different sizes, thereby reducing the equipment cost required for the platform when applying flux or balling.

[0016] 3. The support component includes an adjusting bolt and a spring. The support component has a simple structure. The inner side of the adjusting groove is provided with a threaded hole. The adjusting bolt is connected to the threaded hole. The length of the support component can be adjusted by tightening the adjusting bolt. The operation is simple.

[0017] 3. The width of the substrate is a, the width of the platform is b, the length of the adjustment groove extending along the width of the platform is c, and the length of the adjustment bolt is d < c + f, so that the platform of this utility model can support and fix the substrate with a width a > b - 2c and a ≤ b. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a rectangular platform in the prior art;

[0019] Figure 2 This is a schematic diagram of an overall platform compatible with substrates of various sizes according to this utility model;

[0020] Figure 3 This is a schematic diagram of the substrate of this utility model with a fixed width smaller than the platform;

[0021] Figure 4 This is a bottom view of the substrate of this utility model, whose fixed width is smaller than that of the platform;

[0022] Figure 5 This is a bottom view of the base plate of this utility model, whose fixed width is equal to that of the platform;

[0023] The implementation, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art:

[0025] Reference Figures 1-5 This utility model provides an embodiment of a platform compatible with substrates of various sizes.

[0026] A platform compatible with substrates of various sizes is provided. The platform 1 has multiple air extraction holes 11. The substrate 3 is placed on the upper surface of the platform 1. By evacuating the air extraction holes 11, a negative pressure is formed in the air extraction holes 11, so that the platform 1 can vacuum adsorb and fix the substrate 3, which facilitates the subsequent application of flux or balling to the substrate 3.

[0027] The platform 1 has an adjustment groove 12 at its edge, and a support member 2 is installed inside the adjustment groove 12. The upper surface of the support member 2 is flush with the upper surface of the platform 1, ensuring that the upper surface of the support member 2 can support the substrate 3. The support member 2 is installed inside the adjustment groove 12, and one end of the support member 2 is connected to the inner side of the adjustment groove 12. The length of the support member 2 can be adjusted so that the other end can move closer to the edge below the substrate 3, which can support substrates 3 of different sizes, thereby reducing the equipment cost required for the platform 1 when applying flux or balling. At the same time, a clamping gap is formed between the edge of the substrate 3 and the end of the support member 2, which facilitates the gripper to grasp the substrate 3 after applying flux or balling.

[0028] Platform 1 is rectangular, and at least one adjustment groove 12 is provided on both sides of platform 1 along the length direction. After flux is applied or balls are placed, the two grippers can clamp the substrate 3 from both sides of platform 1 along the length direction, thereby ensuring that the substrate 3 is firmly clamped.

[0029] The support member 2 includes an adjusting bolt 21 and a spring 22. The adjusting bolt 21 includes a screw 211 and a head 212, and the spring 22 is fitted onto the screw 211. The width of the head 212 is greater than the inner diameter of the spring 22 to prevent the spring 22 from disengaging from the adjusting bolt 21. Preferably, the width of the head 212 is equal to the outer diameter of the spring 22. The upper surfaces of the head 212 and the spring 22 are flush with the upper surface of the platform 1 to prevent the platform 1 from being uneven and affecting the placement of the substrate 3.

[0030] The inner side of the adjusting groove 12 is provided with a threaded hole, and the adjusting bolt 21 is connected to the threaded hole. The length of the support 2 can be adjusted by tightening the adjusting bolt 21, which is easy to operate.

[0031] The width of substrate 3 is a, the width of platform 1 is b, the length of adjustment groove 12 extending along the width direction of platform 1 is c, the depth of threaded hole is f, and the length of adjustment bolt 21 is d, where c < d < c + f (c, d, and f are not shown in the attached diagram). The substrate width a < b - 2c, the lower surface of substrate 3 is in close contact with platform 1, and the gripper cannot hold substrate 3, so the substrate width a > b - 2c.

[0032] like Figures 3-4 As shown, when b > a > b-2c, the width of the substrate 3 is less than the width of the platform 1, and the edge of the substrate 3 is located above the adjustment groove 12. The screw 211 is screwed into the screw hole, so that the adjustment bolt 21 is completely located in the adjustment groove 12, thereby supporting the substrate 3.

[0033] When the substrate width a is only slightly larger than b-2c, platform 1 can be directly disassembled and used with support 2.

[0034] like Figure 5 As shown, when the width a of the substrate 3 is equal to the width b of the platform 1, and the edge of the substrate 3 is located above the edge of the platform 1, tighten the adjusting bolt 21 so that the head 212 is close to the edge of the substrate 3 and forms a clamping gap of 1~5mm between the head 212 and the edge of the substrate 3.

[0035] To ensure that the bottom of the substrate 3 is supported by a platform during the flux application process, the width b of the platform 1 shall not be less than the width a of the substrate 3.

[0036] Multiple adjustment slots 12 are provided on both sides of the platform 1 along the length direction. The adjustment slots on the same side are equally spaced, and the adjustment slots on both sides correspond one-to-one along the width direction of the platform 1. This makes it convenient for the platform 1 to place multiple substrates 3 with smaller lengths at one time, and to process multiple substrates 3 at the same time, thereby improving production efficiency.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A platform compatible with substrates of various sizes, said platform (1) being provided with a plurality of suction holes (11), a substrate (3) being placed on the upper surface of the platform (1), characterized in that, The platform (1) edge is provided with an adjusting groove (12), the adjusting groove (12) is provided with a support (2), the support (2) upper surface is flush with the platform (1) upper surface, one end of the support (2) is connected with the adjusting groove (12) inner side, the support (2) can adjust length so that the other end moves to near the substrate (3) edge below, and the substrate (3) edge and the support (2) end form a clamping gap.

2. The platform compatible with multiple sizes of substrates of claim 1, wherein, The platform (1) is rectangular, and the platform (1) is provided with at least one adjusting groove (12) on both sides extending along the length direction, and the adjusting groove (12) extends along the width direction of the platform (1).

3. The platform compatible with multiple size substrates of claim 2, wherein, The width of the substrate (3) is a, the width of the platform (1) is b, the length of the adjusting groove (12) extending along the width direction of the platform (1) is c, and b-2c 4. The platform compatible with multiple size substrates of claim 3, wherein, The support (2) comprises an adjusting bolt (21) and a spring (22), the adjusting bolt (21) comprises a screw rod (211) and a head (212), and the spring (22) is sleeved on the screw rod (211); the inner side of the adjusting groove (12) is provided with a threaded hole for connecting with the screw rod (211), and the upper surfaces of the head (212) and the spring (22) are flush with the upper surface of the platform (1).

5. The platform compatible with multiple size substrates of claim 4, wherein, The depth of the threaded hole is f, and the length of the adjusting bolt (21) is d 6. The platform compatible with multiple size substrates of claim 2, wherein, The platform (1) is provided with a plurality of adjusting grooves (12) on both sides extending along the length direction, the adjusting grooves (12) on the same side are arranged at equal intervals, and the adjusting grooves (12) on both sides correspond one by one along the width direction of the platform (1).

7. The platform compatible with multiple size substrates of claim 1, wherein, The clamping gap is 1-5 mm.

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