Lens plasma cleaning tray

Abstract

The utility model relates to a lens plasma cleaning tray, include: tray, be equipped with a plurality of with array form distribution's convex on the upper surface of tray, the area of the region of distribution convex on tray is bigger than the area of single lens, and the gap between two adjacent convexes has and the size of center spacing is smaller than the size of single lens. Advantageous effect is: the tray can place a plurality of lenses in the region of distribution convex, and can guarantee that the lens is not inclined after placing, since the lens is supported by a plurality of convexes, compared with sticking to the tray, the other surfaces (five surfaces) of the lens and the downward surface can contact the plasma gas during plasma cleaning, and the corresponding bonding standard can be cleaned, so that the situation of confusing A and B surfaces will not occur, and the tray can use an automatic suction nozzle to suck the lens, which greatly improves the efficiency compared with manual use of tweezers.

Description

Technical Field

[0001] This utility model relates to the field of optical module technology, specifically to a lens plasma cleaning tray. Background Technology

[0002] The structure of a common 400G DR4 silicon photonics module is as follows: Figure 1 As shown, it employs a dual-lens design, consisting of a collimating lens and a converging lens. Considering cost, silicon lenses are typically chosen, with a length of 1mm and a width of 0.6mm. Silicon is opaque to UV light and has poor adhesion, so a UV-curing and heat-curing adhesive is generally required. The UV adhesive needs to overflow on all four sides and has a certain climbing height (generally >50μm) to ensure that five sides of the lens are bonded to the UV adhesive. To ensure bonding effectiveness, the current mainstream practice is to manually handle the lenses with tweezers before coupling and place a large number of lenses with their A-side (bonding side) facing upwards in the plasma cleaning tray, while the B-side of the lenses faces downwards and is attached to the plasma cleaning tray. Figure 2 As shown, the lens adhesive surface is then cleaned with plasma gas. Due to the limitations of the plasma cleaning tray structure, the actual lens B surface is not cleaned during the cleaning process. After cleaning, the lens is manually rotated 180° with tweezers and placed in the coupling machine tray with the lens A surface facing down, so that the originally downward-facing B surface becomes upward-facing. This process is not only time-consuming and laborious, but also prone to confusion between the A and B surfaces during operation. If the lens B surface is mistakenly used as the adhesive surface for bonding, the lens bonding effect will be poor. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lens plasma cleaning tray to overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A lens plasma cleaning tray includes: a tray, the upper surface of which is provided with a plurality of protrusions distributed in an array, the area of ​​the area where the protrusions are distributed on the tray is larger than the area of ​​a single lens, there is a gap between two adjacent protrusions and the center-to-center distance is smaller than the size of a single lens.

[0005] The beneficial effects of this utility model are: multiple lenses can be placed on the tray with distributed protrusions, and the lenses can be kept straight after placement. Since the lenses are supported by multiple protrusions, compared with sticking to the tray, the other surfaces (five surfaces) of the lenses and the downward-facing surface can all come into contact with the plasma gas during plasma cleaning and be cleaned to the corresponding bonding standard, so that there will be no confusion between A and B surfaces. Using this tray, an automated suction nozzle can be used to pick up the lenses, which greatly improves efficiency compared with manual use of tweezers.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the center-to-center distance between two adjacent protrusions is less than 0.2 mm.

[0008] The further beneficial effect of adopting the above is that, compared with a lens length of 1mm and a width of 0.6mm, this interval size can better ensure that the lens is not skewed.

[0009] Furthermore, the protrusion is conical in shape, with its larger diameter end facing downwards.

[0010] The further beneficial effect of adopting the above is that the protruding (small diameter end) tip faces upward, and the tiny conical tip contacts the lens, which does not affect cleaning and ensures that the downward-facing surface can also be cleaned very well, thus not affecting the adhesion.

[0011] Furthermore, the small-diameter end of the protrusion is a smooth arc shape.

[0012] The further beneficial effect of adopting the above is that the protrusion can avoid damaging the lens when it comes into contact with the lens.

[0013] Furthermore, the height of the protrusion is greater than 0.2 mm.

[0014] The further beneficial effect of adopting the above is that it allows the lens to be suspended at a height that meets the cleaning requirements.

[0015] Furthermore, the tray is made of stainless steel.

[0016] Furthermore, the protrusion is made of stainless steel. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a 400G DR4 silicon photonics module in the prior art; Figure 2 This is a side view of a lens placed on a plasma cleaning tray in the prior art. Figure 3 This is a side view of the lens placed on the lens plasma cleaning tray in this utility model.

[0018] The attached diagram lists the components represented by each number as follows: 1. Tray, 2. Protrusion, 3. Lens. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] Example 1 like Figure 3 As shown, a lens plasma cleaning tray includes: a tray 1, on the upper surface of which are provided a plurality of protrusions 2 distributed in an array. The area of ​​the area where the protrusions 2 are distributed on the tray 1 is larger than the area of ​​a single lens 3, and there is a gap between two adjacent protrusions 2. The center distance between two adjacent protrusions 2 is smaller than the size of a single lens 3. That is, multiple lenses 3 can be placed on the area where the protrusions 2 are distributed on the tray 1, and the lenses 3 can be kept straight after placement. Since the lenses 3 are supported by multiple protrusions 2, compared with sticking to the tray 1, the other surfaces (five surfaces) of the lenses 3 and the downward-facing surface can contact the plasma gas during plasma cleaning and be cleaned to the corresponding bonding standard, so that there will be no confusion between surfaces A and B. Using this tray, an automated suction nozzle can be used to pick up the lenses 3, which greatly improves efficiency compared with manual use of tweezers.

[0021] Example 2 like Figure 3 As shown, this embodiment is a further improvement on embodiment 1, as detailed below: The interval between two adjacent protrusions 2 is less than 0.2mm. Compared with the length of lens 3 being 1mm and the width being 0.6mm, this interval can better ensure that lens 3 is not skewed.

[0022] Example 3 like Figure 3 As shown, this embodiment is a further improvement on embodiment 2, as detailed below: The protrusion 2 is conical in shape, with the larger diameter end of the protrusion 2 facing down, that is, the tip of the (smaller diameter end) of the protrusion 2 facing up. The tiny conical tip contacts the lens 3, which does not affect cleaning and ensures that the downward-facing surface can also be cleaned very well, thus not affecting the adhesion.

[0023] Furthermore, the small-diameter end of protrusion 2 is a smooth arc shape, so that protrusion 2 can avoid damaging lens 3 when it comes into contact with lens 3.

[0024] Example 4 like Figure 3 As shown, this embodiment is a further improvement on embodiment 1, 2, or 3, as detailed below: The height of protrusion 2 is greater than 0.2mm, which is sufficient to allow lens 3 to be suspended at a height that meets the cleaning requirements.

[0025] Example 5 like Figure 3 As shown, this embodiment is a further improvement on embodiment 1, 2, 3, or 4, as detailed below: The material of tray 1 is preferably stainless steel, and the material of protrusion 2 is preferably stainless steel.

[0026] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A lens plasma cleaning tray, characterized in that, include: The tray (1) has a plurality of protrusions (2) arranged in an array on its upper surface. The area of ​​the area where the protrusions (2) are distributed on the tray (1) is larger than the area of ​​a single lens (3). There is a gap between two adjacent protrusions (2) and the center-to-center distance is smaller than the size of a single lens (3).

2. The lens plasma cleaning tray according to claim 1, characterized in that, The center-to-center distance between two adjacent protrusions (2) is less than 0.2 mm.

3. A lens plasma cleaning tray according to claim 2, characterized in that, The protrusion (2) is conical in shape, with the larger diameter end of the protrusion (2) facing downwards.

4. A lens plasma cleaning tray according to claim 3, characterized in that, The small-diameter end of the protrusion (2) is a smooth arc shape.

5. A lens plasma cleaning tray according to any one of claims 1 to 4, characterized in that, The height of the protrusion (2) is greater than 0.2 mm.

6. A lens plasma cleaning tray according to claim 1, characterized in that, The tray (1) is made of stainless steel.

7. A lens plasma cleaning tray according to claim 6, characterized in that, The protrusion (2) is made of stainless steel.

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