CN215955257U

CN215955257U - Jig for COC packaging and testing

Info

Publication number: CN215955257U
Application number: CN202220207736.6U
Authority: CN
Inventors: 王灯奎; 王坤
Original assignee: Fujian Huixin Laser Technology Co ltd
Current assignee: Fujian Huixin Laser Technology Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-03-04
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a jig for COC packaging and testing, which relates to the technical field of chip packaging and comprises a base and a plurality of pressing strips; the base is provided with a plurality of positioning grooves for placing COC, and a plurality of mounting grooves are arranged beside the positioning grooves; the middle part of each depression bar is pivoted in the mounting groove, one end of each depression bar is mutually abutted with the substrate of the COC, and the other end of each depression bar is connected to the bottom of the mounting groove through a spring. The turnover type pressing strip is innovatively designed to replace an elastic sheet in the prior art, the jig can be in an unlocking state by simply pressing the pressing strip during use, each COC can be independently and quickly taken and placed, and the turnover type pressing strip has the advantages of simple structure, reasonable design, reliability, durability and the like, and effectively overcomes the defects of the prior art.

Description

Jig for COC packaging and testing

Technical Field

The utility model relates to the technical field of chip packaging, in particular to a jig for COC packaging and testing.

Background

Coc (chip On carrier) refers to a process of disposing a chip On a specific chip region of a substrate by melting eutectic or the like. A series of testing processes, including push-pull testing and burn-in testing, are required before COC packaging. Since the substrate and chip size of COC are very small, both the packaging and testing processes need to be performed on dedicated tools. The special fishbone tool clamping height of current COC is high, not only can accomplish the bonding wire, still can directly be used for the test, can satisfy the demand of encapsulation and test simultaneously, has stronger practicality.

But because the shell fragment of fishbone tool is thinner, consequently very easily impaired in the use, the concrete expression is in following two aspects: firstly, the fishbone jig presses the COC substrate from the side surface by means of the elastic sheet, and the elastic sheet is easy to naturally deform under the conditions of high-temperature environment and long-time pressing; secondly, when a push-pull force test is carried out, the elastic sheet is easy to deform and age due to large push force. Once the elastic sheet deforms, the whole jig is scrapped, because when the jig is packaged, if the elastic sheet deforms slightly, a chopper of a wire bonding machine can easily take out the COC from the jig, so that the welding wire is interrupted, and finally the productivity is influenced. In addition, the fishbone jig can only be designed independently according to corresponding products at present, and cannot be compatible with products with multiple sizes, so that the fishbone jig also has the defects of poor applicability, high cost and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a jig for COC packaging and testing, and mainly aims to solve the problems that an elastic sheet is easy to deform and damage, the service life is short, the applicability is poor, the cost is high and the like in the conventional COC packaging and testing jig.

The utility model adopts the following technical scheme:

a jig for COC packaging and testing comprises a base and a plurality of pressing strips; the base is provided with a plurality of positioning grooves for placing COC in an arrangement manner, and a plurality of mounting grooves are arranged beside the positioning grooves; the middle part of each pressing strip is pivoted in the mounting groove, one end of each pressing strip is mutually abutted to the substrate of the COC, and the other end of each pressing strip is connected to the bottom of the mounting groove through a spring.

Furthermore, the base is provided with a fixed shaft penetrating through each mounting groove; the middle part of each pressing strip is provided with a mounting hole matched with the fixed shaft, and the pressing strips are arranged in the mounting grooves in a turnover mode through the fixed shaft.

Furthermore, the bottom of the pressing strip is provided with an arc-shaped bulge, and the arc-shaped bulge is provided with the mounting hole.

Furthermore, a blind hole for fixing the fixing shaft is formed in one side wall of the base, and a through hole for facilitating the fixing shaft to be arranged in is formed in the other side of the base.

Further, the base is detachably provided with a positioning plate, and the side edge of the positioning plate is inwards sunken to form the positioning groove.

Furthermore, the left side and the right side of the positioning plate are provided with a plurality of positioning grooves in a distributed manner, and the left side and the right side of the base are provided with a plurality of mounting grooves in a distributed manner.

Furthermore, the positioning plate is provided with at least one abdicating groove which is convenient for clamping the COC at the side of each positioning groove.

Further, the length L of the positioning groove is 4-7 mm.

Furthermore, the pressing strips and the positioning plate are made of stainless steel, and the base is made of aluminum alloy.

Compared with the prior art, the utility model has the beneficial effects that:

1. the turnover type pressing strip is innovatively designed to replace an elastic sheet in the prior art, the jig can be in an unlocking state by simply pressing the pressing strip during use, each COC can be independently and quickly taken and placed, and the turnover type pressing strip has the advantages of simple structure, reasonable design, reliability, durability and the like, and effectively overcomes the defects of the prior art.

2. The press strip is ingenious in installation mode and simple in operation, can be quickly disassembled and assembled, is convenient to replace a damaged single press strip or adjust the spring elasticity of the single press strip, and effectively prolongs the service life of the whole jig.

3. The positioning plate adopts a detachable mounting structure, and when the positioning groove needs to be adjusted, the positioning plate can be replaced by different positioning plates, so that the jig can be compatible with COCs of different types, and has the advantage of strong applicability.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an exploded view of the base of the present invention.

FIG. 4 is a schematic view of the structure of the molding of the present invention.

In the figure: 1. a base; 100. mounting grooves; 11. positioning a plate; 110. positioning a groove; 111. a yielding groove; 12. a fixed shaft; 121. blind holes; 122. a through hole; 2. layering; 21. a spring; 22. an arc-shaped bulge; 220. mounting holes; 3. a substrate.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth below in order to provide a thorough understanding of the present invention, but it will be apparent to those skilled in the art that the present invention may be practiced without these details.

Referring to fig. 1 to 4, a jig for COC packaging and testing includes a base 1 and a plurality of press bars 2; the base 1 is provided with a plurality of positioning grooves 110 for placing COC, and a plurality of mounting grooves 100 are arranged beside the positioning grooves 110; the middle part of each pressing strip 2 is pivoted in the mounting groove 100, one end of each pressing strip 2 is abutted against the substrate 3 of the COC, and the other end of each pressing strip 2 is connected to the bottom of the mounting groove 100 through a spring 21. The turnover type pressing strip 2 is innovatively designed to replace elastic sheets in the prior art, when the fixture is used, the fixture can be in an unlocking state by simply pressing the pressing strip 2, and each COC can be independently and quickly taken and placed.

Referring to fig. 1 to 3, the base 1 is provided with a fixing shaft 12 penetrating through each mounting groove 100; the middle part of each pressing strip 2 is provided with a mounting hole 220 matched with the fixed shaft 12, and the pressing strips 2 are arranged in the mounting groove 100 in a turnover way through the fixed shaft 12. By adopting the design, parts can be fully saved, and the complicated process of independently installing the rotating shaft for each pressing strip 2 is omitted. Preferably, one side wall of the base 1 is provided with a blind hole 121 for fixing the fixing shaft 12, and the other side is provided with a through hole 122 for facilitating the installation of the fixing shaft 12. During installation, the fixing shaft 12 is arranged along the through hole 122, penetrates through the side wall of each installation groove 100, is inserted into the installation hole 220 of each pressing strip 2 and is finally fixed in the blind hole 121; and only the fixed shaft 12 needs to be drawn outwards when the fixing shaft is disassembled. Therefore, the fixture is ingenious in mounting mode and simple to operate, rapid disassembly and assembly of the pressing strips 2 are facilitated, replacement of damaged single pressing strips 2 or adjustment of spring elasticity of the single pressing strips 2 are facilitated, and the service life of the whole fixture is effectively prolonged.

Referring to fig. 1 to 3, the bottom of the molding bar 2 is provided with an arc-shaped protrusion 22, and the arc-shaped protrusion 22 is provided with a mounting hole 220. Set up arc arch 22 one and can effectively improve the structural strength of layering 2, effectively prolong its life, two come to have the space of motion between can making the bottom both ends of layering 2 and mounting groove 100 for the overall structure of tool is compacter reasonable, and has the aesthetic property.

Referring to fig. 1 to 3, the base 1 is detachably provided with a positioning plate 11 by screws, and the side edge of the positioning plate 11 is recessed inward to form a positioning groove 110. When the positioning groove 110 needs to be adjusted, the positioning plate 11 can be replaced by different positioning plates, so that the jig is compatible with COCs of different types, and the jig has the advantage of high applicability. As a preferable scheme: the length L of the positioning groove 110 in this embodiment is 4-7mm, so that the jig can be generally used for COC packaging and testing of most products such as DFB, VCSEL and PD.

Referring to fig. 1 to 3, a plurality of positioning grooves 110 are arranged on the left and right sides of the positioning plate 11, and a plurality of mounting grooves 100 are arranged on the left and right sides of the base 1, so that the clamping amount of the jig can be sufficiently increased, and the production efficiency can be effectively improved.

Referring to fig. 1 to 3, the positioning plate 11 has at least one recess 111 beside each positioning slot 110 for facilitating clamping the COC. The arrangement of the receding groove 111 can facilitate the tweezers to insert and clamp stably and take and place samples, and is beneficial to improving the production yield.

Referring to fig. 1 to 4, as a preferred embodiment: the pressing strips 2, the positioning plate 11 and the fixing shaft 12 are all made of stainless steel materials, and have high wear resistance and reliability. The base 1 is made of aluminum alloy materials, so that the weight is reduced while the heat conduction is high, and the heat-radiating base has the advantages of high strength, light weight, quick heat radiation, firmness, durability and the like.

With reference to fig. 1 to 4, a specific mode of use of the present invention is explained below:

when the COC is taken and placed, one end, close to the spring 21, of the pressing strip 2 can be pressed by a hand, one end, far away from the spring 21, of the pressing strip 2 is tilted upwards, the jig is in an unlocking state, and the COC can be taken out of the positioning groove 110 or placed in the positioning groove 110 by means of tweezers. After the pressing strip 2 is loosened, the spring 21 drives the pressing strip 2 to automatically reset, one end, far away from the spring 21, of the pressing strip 2 abuts against the substrate 3 of the COC, at the moment, the jig is in a locking state and can stably clamp the COC so as to carry out testing and packaging processes, and in the process, the pressure for clamping the COC comes from the elastic force of each spring 21, so that the elastic force of each spring 21 can be customized or adjusted independently, the product can be clamped reliably, and the product is not damaged.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims

1. A tool for COC encapsulation and test which characterized in that: comprises a base and a plurality of pressing strips; the base is provided with a plurality of positioning grooves for placing COC in an arrangement manner, and a plurality of mounting grooves are arranged beside the positioning grooves; the middle part of each pressing strip is pivoted in the mounting groove, one end of each pressing strip is mutually abutted with the substrate of the COC, and the other end of each pressing strip is connected to the bottom of the mounting groove through a spring; an arc-shaped bulge is arranged at the bottom of the pressing strip, so that a movement space is formed between the two ends of the bottom of the pressing strip and the mounting groove.

2. The apparatus of claim 1, wherein: the base is provided with a fixed shaft penetrating through each mounting groove; the middle part of each pressing strip is provided with a mounting hole matched with the fixed shaft, and the pressing strips are arranged in the mounting grooves in a turnover mode through the fixed shaft.

3. The apparatus of claim 2, wherein: the mounting hole is formed in the middle of the arc-shaped bulge.

4. The apparatus of claim 2, wherein: a blind hole for fixing the fixing shaft is formed in one side wall of the base, and a through hole facilitating the fixing shaft to be installed is formed in the other side of the base.

5. The apparatus of claim 1, wherein: the base detachably is equipped with a locating plate, and the side of this locating plate inwards caves in and forms the constant head tank.

6. The apparatus of claim 5, wherein: the locating plate is characterized in that a plurality of locating grooves are arranged on the left side and the right side of the locating plate, and a plurality of mounting grooves are arranged on the left side and the right side of the base.

7. The apparatus of claim 5, wherein: the positioning plate is provided with at least one abdicating groove which is convenient for clamping the COC at the side of each positioning groove.

8. The apparatus of claim 1, wherein: the length L of the positioning groove is 4-7 mm.

9. The apparatus of claim 5, wherein: the pressing strip and the positioning plate are both made of stainless steel, and the base is made of aluminum alloy.