CN218068044U

CN218068044U - Packaged chip test fixture

Info

Publication number: CN218068044U
Application number: CN202220816398.6U
Authority: CN
Inventors: 刘强; 董江; 廖强
Original assignee: Chengdu Guoqiang Yuxing Electronic Technology Co ltd
Current assignee: Chengdu Guoqiang Yuxing Electronic Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-12-16
Anticipated expiration: 2032-04-11

Abstract

The utility model relates to a chip testing field, especially a package chip test fixture, including bearing dish, fixed subassembly and centre gripping subassembly, the bearing dish level sets up, and the top of bearing dish sets up four sliding trays along the angle settings such as its circumference, fixed subassembly level sets up the below at the bearing dish, the centre gripping subassembly is equipped with four, and four centre gripping subassemblies are vertical setting respectively in four sliding trays, and the top of every centre gripping subassembly all extends to the top of bearing dish, and the top that the sliding tray extended to fixed subassembly, every is all passed to the bottom of every centre gripping subassembly the centre gripping subassembly all is connected with fixed subassembly. The utility model has the advantages of: through the setting of fixed subassembly and centre gripping subassembly, make the utility model discloses can be fine carry out the centre gripping to circular packaging chip, avoid utilizing rectangle stop device can't fix circular packaging chip.

Description

Packaged chip test fixture

Technical Field

The utility model relates to a chip testing technology field, especially a encapsulation chip test fixture.

Background

The shell for installing semiconductor integrated circuit chip has the functions of placing, fixing, sealing, protecting chip and enhancing electrothermal performance, and is also the bridge for communicating the internal world of chip with external circuit, and the contacts on the chip are connected to the pins of the package shell by wires, and these pins are connected with other devices by wires on the printed board. Therefore, the package plays an important role for both the CPU and other LSI integrated circuits.

Along with the more and more panorama function now, circuit design is more and more complicated, and the chip integration that different producers used is also higher and higher, and the product on the car requires very high to stability. Along with the progress of the whole electronic industry, the integration level of the chip is higher and higher, and the problems brought by the chip are obvious: the expensive core chip mounting process has high requirement and the corresponding cost is increased, so that once the conditions of insufficient soldering/damage and the like occur, the quality of the chip and the batch problem of a manufacturer cannot be judged, and if the chip is scrapped in a large batch seriously, the serious property loss is caused, so that the screening test of the chip is often involved before the chip is installed on a circuit board.

With the continuous development of electronic chip technology, the testing technology of packaged chips also becomes an important technical key for ensuring the production quality and accelerating the production flow in the electronic industry. Generally, the packaged electronic chip needs to be electrically tested at a predetermined high temperature to know the stability of the packaged chip. When carrying out chip test, traditional chip anchor clamps have fixed mode unstability, and the function singleness is not good with the test effect problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a encapsulation chip test fixture.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a packaged chip test fixture, includes bearing dish, fixed subassembly and centre gripping subassembly, the bearing dish level sets up, and the top of bearing dish sets up four sliding trays along angle settings such as its circumference, fixed subassembly level sets up the below at the bearing dish, the centre gripping subassembly is equipped with four, and four centre gripping subassemblies are vertical respectively to be set up in four sliding trays, and the top of every centre gripping subassembly all extends to the top of bearing dish, and the bottom of every centre gripping subassembly all passes the sliding tray and extends to the top of fixed subassembly, every the centre gripping subassembly all is connected with fixed subassembly.

Preferably, the fixing component comprises a fixing plate, an extending plate, an electric push rod, four moving blocks, four inserting plates, four moving cylinders and four clamping blocks, the fixing plate is installed below the bearing plate, the four moving blocks are installed at the top of the fixing plate in a sliding mode along the circumferential direction of the bearing plate at equal angles, the four clamping blocks are located beside the four moving blocks respectively and fixedly connected with the side walls of the four moving blocks respectively, four sliding grooves are formed in the top of the fixing plate and located between every two adjacent moving blocks respectively, each moving cylinder is vertically installed in one sliding groove in a sliding mode, each inserting plate is installed at the top of one moving cylinder respectively, two ends of each inserting plate are inserted into the side walls of the two adjacent moving blocks respectively, the extending plate is in an L-shaped structure and vertically installed at the top of the fixing plate, the electric push rod is installed on the side walls of the extending plate, the output end of the electric push rod is fixedly connected with the outer side wall of one moving block, and the bottom of the other end of each clamping block is in a U-shaped structure.

Preferably, every the centre gripping subassembly all includes linking arm, sliding block and coupling spring, the vertical setting of linking arm is in a sliding tray, and the one end of linking arm passes a sliding tray and extends to the top of a grip block and articulated mutually with a grip block, and the other end of linking arm extends to the top of bearing the tray, the sliding block sets up in the top of bearing the tray, and the bottom of sliding block and the top of bearing the tray do not laminate, the bottom of sliding block is articulated mutually with the other end of linking arm, the coupling spring level sets up, and the lateral wall fixed connection of coupling spring's one end and sliding block.

Preferably, the top of the bearing plate is provided with a circular limiting ring, and the other end of the connecting spring is fixedly connected with the inner side wall of the limiting ring.

Preferably, each connecting arm is telescopic, and the upper section of each connecting arm is rotatably connected with one sliding groove on the bearing plate.

Preferably, the outer side wall of the bearing tray is provided with four supporting rollers which are vertically arranged along the circumferential direction at equal angles.

The utility model has the advantages of it is following:

when needs carry out the centre gripping, drive electric putter, make a movable block remove, through the grafting setting of four plugboard and four movable blocks, drive other three movable block and together remove, make four grip blocks put to the central point of bearing dish and contract, the grip block removes and drives and removes rather than articulated linking arm mutually, thereby rotate the setting of being connected through linking arm upper segment and bearing dish, make the top of linking arm carry out the circular arc and remove, thereby make four sliding blocks topple over backward simultaneously, place circular encapsulation chip in the top of bearing dish after that, electric putter contracts, thereby drive the sliding block and move forward, thereby contradict circular encapsulation chip, thereby carry out the centre gripping to circular encapsulation chip through four sliding blocks, thereby clamp circular encapsulation chip and fix, make the utility model discloses can be fine carry out the centre gripping to circular encapsulation chip, avoid utilizing rectangle stop device can's fixed circular encapsulation chip.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural view of the fixing assembly of the present invention;

fig. 3 is a second schematic structural view of the fixing assembly of the present invention;

fig. 4 is a schematic structural view of the middle clamping assembly of the present invention.

In the figure: the device comprises a bearing plate 1, a fixing component 2, a fixing plate 21, an extending plate 22, an electric push rod 23, a moving block 24, a plug-in plate 25, a moving cylinder 26, a clamping block 27, a clamping component 3, a connecting arm 31, a sliding block 32, a connecting spring 33, a limiting ring 4 and a supporting roller 5.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 4, a packaged chip test fixture comprises a bearing tray 1, a fixing component 2 and a clamping component 3, wherein the bearing tray 1 is horizontally arranged, four sliding grooves are formed in the top of the bearing tray 1 and are arranged at equal angles along the circumferential direction of the bearing tray, the fixing component 2 is horizontally arranged below the bearing tray 1, the clamping component 3 is provided with four clamping components 3, the four clamping components 3 are vertically arranged in the four sliding grooves respectively, the top end of each clamping component 3 extends to the upper side of the bearing tray 1, the bottom end of each clamping component 3 penetrates through the sliding grooves and extends to the upper side of the fixing component 2, and each clamping component 3 is connected with the fixing component 2.

Specifically, the fixing assembly 2 includes a fixing plate 21, an extending plate 22, an electric push rod 23, four moving blocks 24, four plugboard plates 25, four moving cylinders 26 and four clamping blocks 27, the fixing plate 21 is installed below the bearing tray 1, the four moving blocks 24 are installed at the top of the fixing plate 21 in an equiangular sliding manner along the circumferential direction of the bearing tray 1, the four clamping blocks 27 are respectively located at the side of the four moving blocks 24, the four clamping blocks 27 are respectively and fixedly connected with the side walls of the four moving blocks 24, four sliding grooves are formed in the top of the fixing plate 21, each sliding groove is respectively located between every two adjacent moving blocks 24, each moving cylinder 26 is respectively vertically and slidably installed in one sliding groove, each plugboard 25 is respectively installed at the top of one moving cylinder 26, and the two ends of each plug-in board 25 are respectively inserted into the side walls of two adjacent moving blocks 24, the extension board 22 is in an L-shaped structure, the extension board 22 is vertically installed at the top of the fixing board 21, the electric push rod 23 is installed on the side wall of the extension board 22, the output end of the electric push rod 23 is fixedly connected with the outer side wall of one moving block 24, the bottom of the other end of each clamping block 27 is in a u-shaped structure, when clamping is required, the electric push rod 23 is driven to move one moving block 24, and the other three moving blocks 24 are driven to move together through the insertion arrangement of the four plug-in boards 25 and the four moving blocks 24, so that the four clamping blocks 27 contract towards the central position of the bearing tray 1, and the clamping blocks 27 move to drive one clamping component 3 hinged to the clamping block 27 to move.

Specifically, every centre gripping subassembly 3 all includes linking arm 31, sliding block 32 and coupling spring 33, linking arm 31 is vertical to be set up in a sliding tray, and the one end of linking arm 31 passes a sliding tray and extends to the top of a grip block 27 and articulates with a grip block 27, and the other end of linking arm 31 extends to the top of holding tray 1, sliding block 32 sets up in the top of holding tray 1, and the bottom of sliding block 32 is not laminated with the top of holding tray 1, the bottom of sliding block 32 is articulated with the other end of linking arm 31, coupling spring 33 level sets up, and the lateral wall fixed connection of one end of coupling spring 33 and sliding block 32, and grip block 27 removes and drives the linking arm 31 that is articulated rather than mutually to rotate the setting of being connected through linking arm 31 upper segment and holding tray 1, make the top of linking arm 31 carry out the circular arc removal, thereby make four sliding blocks 32 topple over backward simultaneously, place the circular encapsulation chip in the top of holding tray 1 after that, electric putter 23 contradicts, thereby drive sliding block 32 and retract forward, thereby carry out the circular encapsulation chip clamping through four, thereby live the circular encapsulation fixed encapsulation.

Specifically, the top of tray 1 is equipped with and is the annular spacing ring 4 of circle, and the other end of coupling spring 33 and the inside wall fixed connection of spacing ring 4, and coupling spring 33's setting can make sliding block 32's removal gentler, avoids causing the damage to the encapsulation chip.

Specifically, each of the connecting arms 31 is telescopic, and an upper section of each connecting arm 31 is rotatably connected to one of the sliding grooves of the supporting tray 1, so that the connecting arm 31 can better cooperate with the clamping block 27 and the sliding block 32.

Specifically, the outer side wall of the bearing tray 1 is provided with four supporting rollers 5 vertically arranged along the circumferential direction at equal angles for supporting the bearing tray 1.

The working process of the utility model is as follows: when needing to carry out the centre gripping, drive electric putter 23, make a movable block 24 remove, through the grafting setting of four plugboard 25 and four movable blocks 24, drive other three movable block 24 and move together, make four grip block 27 to put to contract to the central point of holding tray 1, grip block 27 removes and drives and moves rather than articulated linking arm 31 mutually, thereby through the setting of linking arm 31 upper segment and holding tray 1 rotation connection, make the top of linking arm 31 carry out circular arc and move, thereby make four sliding blocks 32 topple over backward simultaneously, place circular encapsulation chip in the top of holding tray 1 after that, electric putter 23 contracts, thereby drive sliding block 32 and move forward, thereby contradict circular encapsulation chip, thereby carry out the centre gripping to circular encapsulation chip through four sliding blocks 32, thereby fix circular encapsulation chip clamp.

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

Claims

1. A kind of encapsulated chip test fixture, characterized by: including bearing dish (1), fixed subassembly (2) and centre gripping subassembly (3), bearing dish (1) level sets up, and the top of bearing dish (1) sets up four sliding trays that angle settings such as along its circumference, fixed subassembly (2) level sets up the below at bearing dish (1), centre gripping subassembly (3) are equipped with four, and four vertical settings are in four sliding trays respectively in centre gripping subassembly (3), and the top of every centre gripping subassembly (3) all extends to the top of bearing dish (1), and the bottom of every centre gripping subassembly (3) all passes the top that the sliding tray extends to fixed subassembly (2), every centre gripping subassembly (3) all are connected with fixed subassembly (2).

2. The packaged chip testing jig of claim 1, wherein: the fixing component (2) comprises a fixing plate (21), an extending plate (22), an electric push rod (23), four moving blocks (24), four plug plates (25), four moving cylinders (26) and four clamping blocks (27), the fixing plate (21) is installed below the bearing tray (1), the four moving blocks (24) are installed at the top of the fixing plate (21) in a circumferential equal-angle sliding mode along the bearing tray (1), the four clamping blocks (27) are respectively located at the sides of the four moving blocks (24), the four clamping blocks (27) are respectively fixedly connected with the side walls of the four moving blocks (24), four sliding grooves are formed in the top of the fixing plate (21), each sliding groove is respectively located between every two adjacent moving blocks (24), each moving cylinder (26) is vertically and slidably installed in one sliding groove, each plug plate (25) is respectively installed at the top of one moving cylinder (26), two ends of each plug plate (25) are respectively inserted into the side walls of the two adjacent moving blocks (24), the extending plate (22) is arranged in an L-shaped structure, the extending plate (22) is installed on the top of the side wall of the extending plate (23), and the electric push rod (22) is connected with the side wall of the fixing plate (23), the bottom of the other end of each clamping block (27) is U-shaped.

3. The packaged chip testing jig of claim 2, wherein: every centre gripping subassembly (3) all includes linking arm (31), sliding block (32) and coupling spring (33), the vertical setting of linking arm (31) is in a sliding tray, and the one end of linking arm (31) passes a sliding tray and extends to the top of a grip block (27) and articulates mutually with a grip block (27), and the other end of linking arm (31) extends to the top that holds tray (1), sliding block (32) set up in the top that holds tray (1), and the bottom of sliding block (32) does not laminate with the top that holds tray (1), the bottom of sliding block (32) articulates with the other end of linking arm (31), coupling spring (33) level sets up, and the lateral wall fixed connection of the one end of coupling spring (33) and sliding block (32).

4. The packaged chip testing jig of claim 3, wherein: the top of the bearing plate (1) is provided with a circular limiting ring (4), and the other end of the connecting spring (33) is fixedly connected with the inner side wall of the limiting ring (4).

5. The packaged chip testing jig of claim 3, wherein: each connecting arm (31) is telescopic, and the upper section of each connecting arm (31) is rotatably connected with one sliding groove in the bearing plate (1).

6. The packaged chip testing jig of claim 1, wherein: the outer side wall of the bearing plate (1) is provided with four supporting rollers (5) which are vertically arranged at equal angles along the circumferential direction.