CN215986348U

CN215986348U - Fixing device of DFN encapsulation test box

Info

Publication number: CN215986348U
Application number: CN202121448979.0U
Authority: CN
Inventors: 金玄
Original assignee: Suzhou Jinfengming Electronic Technology Co ltd
Current assignee: Suzhou Jinfengming Electronic Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-03-08
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a fixing device of a DFN packaging test box, which comprises a test box, wherein mounting frames are fixedly mounted on two sides of the top of the test box, the top of each mounting frame is connected with an extrusion seat in a sliding mode, an electrode is arranged at the bottom of each extrusion seat, a containing cavity is formed in the test box, and a test base is arranged in the containing cavity. The test box is used for installing the mounting frame, the mounting frame is used for installing the extrusion seat, the containing cavity is used for containing the test base, the test base is used for installing the pin connecting pins and the extrusion plate, the extrusion plate is used for fixing the packaging element to be detected, the pin connecting pins are used for connecting pins of the packaging element to be detected, and meanwhile, the problem that the use is influenced due to the fact that the existing DFN packaging test box is inconvenient to install and detect is solved.

Description

Fixing device of DFN encapsulation test box

Technical Field

The utility model relates to the technical field of DFN packaging detection, in particular to a fixing device for a DFN packaging test box.

Background

DFN/QFN is a new electronic packaging technology, advanced dual or quad flat lead free packages (DFN/QFN) are used for various components of the onsemictor company, the DFN/QFN platform is a new surface mount package technology, and the mounting pads, solder mask and stencil pattern design and assembly process of Printed Circuit Boards (PCBs) are required to follow the corresponding principles, and the DFN/QFN package outlines that the DFN/QFN platform has versatility to allow one or more semiconductor devices to be connected within a lead free package, which demonstrates the flexibility of the package as shown in fig. 1.

DFN encapsulation often need test it after the encapsulation finishes, and current DFN encapsulation test box is inconvenient to install it and detect to influence the use, can not satisfy the use needs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing device of a DFN packaging test box, which has the advantage of convenience in installation and detection of the DFN packaging test box and solves the problem that the use of the DFN packaging test box is influenced because the existing DFN packaging test box is inconvenient to install and detect.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fixing device of DFN encapsulation test box, includes the test box, the equal fixed mounting in both sides at test box top has the mounting bracket, the top sliding connection of mounting bracket has extrusion seat, the bottom of extrusion seat is provided with the electrode, the inside of test box has been seted up and has been held the chamber, the inside that holds the chamber is provided with test base, test base's top is provided with evenly distributed's two sets of pin and connects the needle, the both sides at test base top just are located two sets of pin and connect and all are provided with the stripper plate between the needle, the top fixed mounting of extrusion seat has the control panel.

Preferably, two second springs are fixedly mounted below the interior of the accommodating cavity, and the tops of the second springs are fixedly connected with the bottom of the testing base.

Preferably, the surface of the mounting frame is sleeved with a first spring, and the top of the first spring is in contact with the bottom of the extrusion seat.

Preferably, the bottom of the extrusion seat is provided with a mounting cavity, a third spring is welded in the mounting cavity, and the top of the electrode penetrates through the mounting cavity and is fixedly connected with the bottom of the third spring.

Preferably, the top of the test base is provided with a first sliding groove corresponding to each group of pin connecting needles, the inside of the first sliding groove is slidably connected with a first sliding block corresponding to the pin connecting needles, and the top of the first sliding block is fixedly connected with the bottoms of the pin connecting needles.

Preferably, a second sliding groove corresponding to the extrusion plate is formed in the test base, two second sliding blocks are connected to the second sliding groove in a sliding mode, the top of each second sliding block is in contact with the bottom of the extrusion plate, and a fourth spring is welded to the inner portion of the second sliding groove and one side, located far away from the second sliding blocks, of the second sliding groove.

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

1. according to the utility model, the test box is arranged for mounting the mounting frame, the mounting frame is arranged for mounting the extrusion seat, the accommodating cavity is used for accommodating the test base, the test base is arranged for mounting the pin connecting pins and the extrusion plate, the extrusion plate is arranged for fixing the packaging element to be detected, the pin connecting pins are arranged for connecting the pins of the packaging element to be detected, the electrodes are arranged for transmitting electric energy to the packaging element, and whether the packaging element is conductive after packaging is detected, so that the problem that the use is influenced due to the fact that the existing DFN packaging test box is inconvenient to mount and detect is solved.

2. The utility model is convenient to take off the electrically tested encapsulation element by arranging the second spring for pushing the test base upwards and is convenient to push the extrusion seat upwards by arranging the first spring, thereby facilitating mounting of the package element to the top of the test base, by providing the mounting cavity for mounting the electrode and the third spring, by providing the third spring for pushing the electrode downwards, meanwhile, the electrodes are buffered, the damage to the packaging element caused by the electrodes is avoided, the pin connecting pins are adjusted through the matching between the first sliding chute and the first sliding block, thereby satisfying the detection of the encapsulation elements with different distances of the pins, and the second slide block is arranged for installing the extrusion plate, the extrusion plate is moved by arranging the second sliding groove, and the packaging element is clamped by matching between the extrusion plate and the fourth spring.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the first chute of the present invention;

FIG. 4 is a schematic cross-sectional view of a second chute according to the present invention.

In the figure: 1. a test cartridge; 2. a mounting frame; 3. a first spring; 4. testing the base; 5. a pin connecting pin; 6. a pressing plate; 7. a pressing base; 8. an electrode; 9. an accommodating chamber; 10. a second spring; 11. a third spring; 12. a mounting cavity; 13. a first chute; 14. a fourth spring; 15. a first slider; 16. a second chute; 17. and a second slider.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-4, a fixing device for a DFN packaging test box comprises a test box 1, wherein both sides of the top of the test box 1 are fixedly provided with a mounting frame 2, the top of the mounting frame 2 is slidably connected with an extrusion seat 7, the bottom of the extrusion seat 7 is provided with an electrode 8, the interior of the test box 1 is provided with a containing cavity 9, the interior of the containing cavity 9 is provided with a test base 4, the top of the test base 4 is provided with two groups of pin connecting needles 5 which are uniformly distributed, both sides of the top of the test base 4 and between the two groups of pin connecting needles 5 are provided with an extrusion plate 6, the top of the extrusion seat 7 is fixedly provided with a control plate, the test box 1 is arranged for mounting the mounting frame 2, the extrusion seat 2 is arranged for mounting the extrusion seat 7, the containing cavity 9 is arranged for containing the test base 4, the test base 4 is arranged for mounting the pin connecting needles 5 and the extrusion plate 6, the packaging component to be detected is fixed by arranging the extrusion plate 6, the pins of the packaging component to be detected are connected by arranging the pin connecting pins 5, the electric energy is transmitted to the packaging component by arranging the electrodes 8, whether the packaging component is conductive after being packaged is detected, two second springs 10 are fixedly arranged below the inner part of the accommodating cavity 9, the top parts of the second springs 10 are fixedly connected with the bottom part of the testing base 4, the testing base 4 is pushed upwards by arranging the second springs 10, so that the electrically tested packaging component is convenient to take off, the surface of the mounting frame 2 is sleeved with the first spring 3, the top part of the first spring 3 is contacted with the bottom part of the extrusion seat 7, the extrusion seat 7 is pushed upwards by arranging the first spring 3, so that the packaging component is convenient to be mounted to the top part of the testing base 4, the bottom part of the extrusion seat 7 is provided with a mounting cavity 12, a third spring 11 is welded in the mounting cavity 12, the top of the electrode 8 penetrates into the mounting cavity 12 and is fixedly connected with the bottom of the third spring 11, the mounting cavity 12 is used for mounting the electrode 8 and the third spring 11, the third spring 11 is used for pushing the electrode 8 downwards, meanwhile, the electrode 8 is buffered, the electrode 8 is prevented from damaging the packaging element, a first sliding chute 13 corresponding to each group of pin connecting needles 5 is arranged at the top of the test base 4, a first sliding block 15 corresponding to the pin connecting needles 5 is connected in a sliding manner in the first sliding chute 13, the top of the first sliding block 15 is fixedly connected with the bottoms of the pin connecting needles 5, the pin connecting needles 5 are adjusted through the matching between the first sliding chute 13 and the first sliding block 15, so that the requirement for detecting the packaging elements with different pin distances is met, a second sliding chute 16 corresponding to the extrusion plate 6 is arranged in the test base 4, the inside sliding connection of second spout 16 has two second sliders 17, the top of second slider 17 and the bottom contact of stripper plate 6, the inside of second spout 16 and the one side that is located second slider 17 and keeps away from relatively all welds fourth spring 14, is used for installing stripper plate 6 through setting up second slider 17, realizes stripper plate 6's removal through setting up second spout 16, realizes carrying out the centre gripping to encapsulated component through the cooperation between stripper plate 6 and the fourth spring 14.

During the use, arrange according to the pin of waiting to detect the encapsulation component, adjust pin connection pin 5, make pin connection pin 5 correspond with the pin of waiting to detect the encapsulation component, with stripper plate 6 to both sides pulling, will wait to detect the encapsulation component and place between test base 4's top and stripper plate 6, treat the encapsulation component who detects through stripper plate 6 and fix, press down extrusion seat 7 and make extrusion seat 7 descend, make electrode 8 and the encapsulation component contact of waiting to detect simultaneously, the inside of control panel has integrateed control button and display, connect pin 5 and electrode 8 and let in the electric current through control button control pin, detect the encapsulation component, it can to show through the display with the result after finishing detecting.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fixing device of DFN encapsulation test box, includes test box (1), its characterized in that: the equal fixed mounting in both sides at test box (1) top has mounting bracket (2), the top sliding connection of mounting bracket (2) has extrusion seat (7), the bottom of extrusion seat (7) is provided with electrode (8), the inside of test box (1) has been seted up and has been held chamber (9), the inside that holds chamber (9) is provided with test base (4), the top of test base (4) is provided with evenly distributed's two sets of pin and connects needle (5), the both sides at test base (4) top just are located and all are provided with stripper plate (6) between two sets of pin connection needle (5), the top fixed mounting of extrusion seat (7) has the control panel.

2. The fixture for a DFN package test cassette of claim 1, wherein: two second springs (10) are fixedly mounted below the interior of the accommodating cavity (9), and the tops of the second springs (10) are fixedly connected with the bottom of the testing base (4).

3. The fixture for a DFN package test cassette of claim 1, wherein: the surface cover of mounting bracket (2) is equipped with first spring (3), the top of first spring (3) and the bottom contact of extrusion seat (7).

4. The fixture for a DFN package test cassette of claim 1, wherein: an installation cavity (12) is formed in the bottom of the extrusion seat (7), a third spring (11) is welded inside the installation cavity (12), and the top of the electrode (8) penetrates through the inside of the installation cavity (12) and is fixedly connected with the bottom of the third spring (11).

5. The fixture for a DFN package test cassette of claim 1, wherein: the test device is characterized in that a first sliding groove (13) corresponding to each group of pin connecting needles (5) is formed in the top of the test base (4), a first sliding block (15) corresponding to each pin connecting needle (5) is connected to the inside of each first sliding groove (13) in a sliding mode, and the top of each first sliding block (15) is fixedly connected with the bottom of each pin connecting needle (5).

6. The fixture for a DFN package test cassette of claim 1, wherein: second spout (16) that correspond with stripper plate (6) are seted up to the inside of test base (4), the inside sliding connection of second spout (16) has two second sliders (17), the top of second slider (17) and the bottom contact of stripper plate (6), fourth spring (14) have all been welded in the inside of second spout (16) and be located the one side that second slider (17) kept away from relatively.