CN210560725U

CN210560725U - Auxiliary device for placing BAR strips in optical coating process

Info

Publication number: CN210560725U
Application number: CN201921532371.9U
Authority: CN
Inventors: 张鹏; 张永; 单智发
Original assignee: Suzhou Epihouse Co ltd
Current assignee: Epihouse Optoelectronic Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-05-19
Anticipated expiration: 2029-09-16

Abstract

An auxiliary device for placing BAR strips in optical coating comprises a horizontally arranged bottom plate, wherein a first carrying platform and a second carrying platform are arranged on the bottom plate, the first carrying platform is composed of two first cylinders which are equal in height and vertical to the bottom plate, the second carrying platform is composed of two second cylinders which are equal in height and vertical to the bottom plate, the second carrying platform is arranged on the inner side of the first carrying platform, and the height of the first cylinders is larger than that of the second cylinders. The utility model discloses simple structure, the processing cost is low, and the practicality is high, need not to improve current coating film anchor clamps and coating film equipment, and both ends bellied effect when just can simple and convenient realization BAR strip optical coating is put has improved the dirty problem of BAR strip terminal surface, has solved the damaged problem of BAR strip terminal surface optical coating behind the coating film, improves the yields greatly, is worth promoting.

Description

Auxiliary device for placing BAR strips in optical coating process

Technical Field

The utility model relates to an auxiliary device, concretely relates to auxiliary device that BAR strip was put when being used for optical coating.

Background

At present, the preparation of semiconductor lasers for optical communication represents the development direction of advanced micro-nano processing and device integration processes, and has received high attention from various countries in the world, and the semiconductor lasers for optical communication are the core of optical fiber communication. At present, an INP substrate is mainly applied to a semiconductor laser for optical communication to carry out epitaxial growth and back end processing, and an optical coating process of an end face of a BAR strip in the back end processing is a key process for ensuring laser parameters.

The BAR strip optical coating is that corresponding optical medium film layers are coated at two ends of the BAR strip, in order to ensure the coating quality in the coating process, the BAR strip can not be continuously placed, an accompanying strip is clamped between the BAR strips, the width of the accompanying strip is slightly narrower than that of the BAR strip, and the BAR strip can slightly protrude when being placed. The prior method is to place a BAR strip and an accompanying strip on a glass sheet, so that the upper end is only guaranteed to be protruded, the lower end is flush with the accompanying strip, the lower end of the BAR strip is in direct contact with the glass sheet, the BAR strip is easy to damage and stain when being placed, and the film adhesion phenomenon is easy to occur at the end without the protrusion when the film is coated, the condition of film damage can occur when the BAR strip is separated, the yield is reduced, and in order to ensure that the two ends of the BAR strip can protrude the end face of the accompanying strip when the BAR strip is placed and the end face of the BAR strip can not be stained, an auxiliary device for placing the BAR strip during the optical film coating is designed.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide an auxiliary device for placing BAR strips during optical coating.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: an auxiliary device for placing BAR strips in optical coating comprises a horizontally arranged bottom plate, wherein a first carrying platform and a second carrying platform are arranged on the bottom plate, the first carrying platform is composed of two first cylinders which are equal in height and vertical to the bottom plate, the second carrying platform is composed of two second cylinders which are equal in height and vertical to the bottom plate, the second carrying platform is arranged on the inner side of the first carrying platform, and the height of the first cylinders is greater than that of the second cylinders.

The preferable technical scheme is as follows: the height difference between the first column and the second column is 10-20 μm.

The preferable technical scheme is as follows: the upper end surfaces of the first cylinder and the second cylinder are arc-shaped.

The preferable technical scheme is as follows: the front shapes of the first column body and the second column body are both rectangular.

The preferable technical scheme is as follows: the first carrying platform and the second carrying platform are made of stainless steel.

Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has is:

the utility model discloses simple structure, the processing cost is low, and the practicality is high, need not to improve current coating film anchor clamps and coating film equipment, and both ends bellied effect when just can simple and convenient realization BAR strip optical coating is put has improved the dirty problem of BAR strip terminal surface, has solved the damaged problem of BAR strip terminal surface optical coating behind the coating film, improves the yields greatly, is worth promoting.

Drawings

Fig. 1 is a side view of the present invention.

Fig. 2 is a schematic view of the assembly of BAR and companion BARs.

In the above figures, the first column body 1, the second column body 2, the bottom plate 3, the BAR strip 4 and the accompanying strip 5.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 and fig. 2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Example (b): as shown in fig. 1 and 2, an auxiliary device for BAR placement during optical coating includes a horizontally disposed bottom plate 3, a first stage and a second stage are disposed on the bottom plate 3, the first stage is composed of two first cylinders 1 which are equal in height and perpendicular to the bottom plate 3, the second stage is composed of two second cylinders 2 which are equal in height and perpendicular to the bottom plate 3, the second stage is disposed inside the first stage, and the height of the first cylinders 1 is greater than that of the second cylinders 2.

The preferred embodiment is: as shown in FIG. 1, the height difference between the first pillar 1 and the second pillar 2 is 10 μm to 20 μm. The lower end of BAR 4 is ensured to protrude beyond the accompanying strip 5.

The preferred embodiment is: as shown in fig. 1, the upper end surfaces of the first column 1 and the second column 2 are arc-shaped. The contact surface of the lower end of the BAR strip 4 and the second cylinder 2 is point contact, and the problems of damage and dirt of the end face of the BAR strip 4 caused by a traditional placing mode are avoided.

The preferred embodiment is: the front shapes of the first column body 1 and the second column body 2 are both rectangular. Can be determined according to the shape of the coating clamp, and is generally rectangular.

The preferred embodiment is: the first carrying platform and the second carrying platform are made of stainless steel. The steel pipe is not easy to rust, corrosion resistant, not easy to damage and long in service life.

The method comprises the following steps: the BAR strip 4 and the accompanying strip 5 are respectively placed on a second carrying platform and a first carrying platform and then clamped by a coating clamp; because the height that highly is greater than the second cylinder 2 of first cylinder 1, the upper end that can realize BAR strip 4 and the equal protrusion of lower extreme accompany the strip 5 to set up, just the rete phenomenon of gluing appears when having avoided the coating film, just also can not appear the damaged condition of rete when BAR strip 4 separates, the yields improves. The shape of the first and second stages can be determined according to the shape of the coating fixture, which is generally regarded as a rectangle (shown in fig. 1 as a side view), the size of the rectangle can be defined according to the size of the existing coating fixture, wherein the distance between the two second cylinders 2 can be defined according to the length of the BAR 4, and the distance between the two first cylinders 1 can be defined according to the length of the accompanying BAR 5. As shown in figure 2, the BAR strip 4 is placed on the second carrying platform, the accompanying strip 5 is placed on the first carrying platform, the BAR strip 4 and the accompanying strip 5 are placed at intervals and then fixed by a coating clamp, and then the device is removed, so that the effect that the two ends of the BAR strip 4 are protruded is realized.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides an auxiliary device that BAR strip was put when being used for optical coating which characterized in that: the device comprises a horizontally arranged bottom plate, wherein a first carrying platform and a second carrying platform are arranged on the bottom plate, the first carrying platform is composed of two first cylinders which are equal in height and vertical to the bottom plate, the second carrying platform is composed of two second cylinders which are equal in height and vertical to the bottom plate, the second carrying platform is arranged on the inner side of the first carrying platform, and the height of the first cylinders is larger than that of the second cylinders.

2. The auxiliary device for BAR placement during optical coating of claim 1, wherein: the height difference between the first column and the second column is 10-20 μm.

3. The auxiliary device for BAR placement during optical coating of claim 2, wherein: the upper end surfaces of the first cylinder and the second cylinder are arc-shaped.

4. The auxiliary device for BAR placement during optical coating of claim 3, wherein: the front shapes of the first column body and the second column body are both rectangular.

5. The auxiliary device for BAR placement during optical coating of claim 4, wherein: the first carrying platform and the second carrying platform are made of stainless steel.