CN213289986U

CN213289986U - Clamp for testing packaged semiconductor discrete device

Info

Publication number: CN213289986U
Application number: CN202021465019.0U
Authority: CN
Inventors: 许洋
Original assignee: Powerin Semiconductor Co ltd
Current assignee: Powerin Semiconductor Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-05-28
Anticipated expiration: 2030-07-22

Abstract

The application relates to anchor clamps are used in test of encapsulated semiconductor discrete device relates to discrete device test fixture's field, and it includes bottom plate, elasticity articulate in gland on the bottom plate and with the supporting component that the bottom plate is connected, supporting component includes supporting seat and regulating plate, the movable groove has been seted up to the supporting seat roof, the regulating plate is located the activity inslot, the regulating plate roof with the supporting seat roof is formed with the difference in height in vertical direction, the bottom plate is located the regulating plate roof. This application has the more accurate effect that can be with the test piece centre gripping.

Description

Clamp for testing packaged semiconductor discrete device

Technical Field

The application relates to the field of discrete device test fixtures, in particular to a fixture for a packaged semiconductor discrete device test.

Background

The discrete device is also called a semiconductor discrete device, and is widely applied to the fields of network communication, automotive electronics, LED display screens and the like. The packaged semiconductor discrete device comprises a tube shell and a plurality of pins connected with the tube shell.

In the related art, the application document with the application number of 201711361833.0 discloses a clamp for testing a chip-type packaged semiconductor discrete device, which comprises a bottom mounting seat for fixing a tested device and an upper pressing part for pressing the tested device, wherein the bottom mounting seat comprises a base substrate for supporting the whole clamp for testing, a device limiting plate for clamping the tested device and a base matched with the upper pressing part, and a limiting plate mounting area for fixedly mounting the device limiting plate, a connecting pin for electrically connecting with external testing equipment and a testing circuit arranged according to a surface pad of the tested device connected with the device are arranged on the base substrate; the upper pressing piece comprises a top cover for covering the surface of the base, a top cover pressing block for pressing the top of the tested device and a spring for buffering. When the test device is used, the spring is arranged in the top of each pressing block, and the top cover is turned down to ensure that each pressing block can reliably press the pin of each tested piece.

For the above-mentioned correlation technique, the inventor thinks that when having a plurality of test pieces of disposable clamp, the test piece can take place to rock before the lock gland, leads to the operation personnel to be difficult to the accurate defect of test piece centre gripping.

SUMMERY OF THE UTILITY MODEL

In order to be more accurate with the test piece centre gripping, this application provides a packaged type semiconductor discrete device test anchor clamps.

The application provides a packaged type discrete semiconductor device test anchor clamps adopts following technical scheme:

the utility model provides an anchor clamps are used in test of encapsulated semiconductor discrete device, include bottom plate, elasticity articulate in gland on the bottom plate and with the supporting component that the bottom plate is connected, supporting component includes supporting seat and regulating plate, movable groove has been seted up to the supporting seat roof, the regulating plate is located movable inslot, the regulating plate roof with the supporting seat roof is formed with the difference in height in vertical direction, the bottom plate is located the regulating plate roof.

By adopting the technical scheme, during operation, the bottom plate is placed on the adjusting plate, then the pipe shell is placed on the top wall of the supporting seat, pins on the pipe shell are in contact with the bottom plate, and after the required pipe shell is placed, the gland is rotated and is enabled to compress the pins on the bottom plate; through utilizing the difference in height between regulating plate roof and the backup pad roof, can be so that when placing the pin on the tube on the bottom plate, play the supporting role to the tube shell by the supporting seat to reduce rocking of the in-process tube of gland lock and pin, thereby can be with more accurate of pin centre gripping, promptly be more accurate with the test piece centre gripping.

Preferably, the regulating plate along vertical direction with supporting seat sliding connection, be equipped with lifting unit on the supporting seat, lifting unit includes first screw rod and screw nut, the axis of first screw rod vertical and with the supporting seat rotates to be connected, screw nut with first screw rod threaded connection and along vertical direction with supporting seat sliding connection, the regulating plate with screw nut fixed connection.

By adopting the technical scheme, when testing test pieces with pipe shells with different thicknesses, in order to avoid the situation that the pipe shells are placed on the supporting seat but the pins cannot be placed on the bottom plate due to height problems, the pins can be placed on the bottom plate by changing the height of the adjusting plate; when the height of the adjusting plate is adjusted, the first screw rod is rotated, the screw rod nut is driven to rotate relative to the first screw rod when the first screw rod rotates, the screw rod nut slides along the vertical direction while rotating relative to the first screw rod, and the adjusting plate is driven to move when the screw rod nut slides up and down; the driving mode has simple structure, can adjust the adjusting plate to any position and has higher universality.

Preferably, the supporting seat is provided with a clamping assembly for fixing the bottom plate.

Through adopting above-mentioned technical scheme, it is fixed with the bottom plate with the centre gripping subassembly, can avoid placing the in-process bottom plate of pin and take place to rock to can further make the connection of pin and bottom plate more accurate.

Preferably, the centre gripping subassembly includes support, second screw rod and briquetting, the support with supporting seat fixed connection, the second screw rod is located the axis of bottom plate top and second screw rod is vertical, the second screw rod passes the support and with support threaded connection, the briquetting is located the second screw rod is close the one end of regulating plate, the second screw rod with the briquetting rotates to be connected, the briquetting along vertical direction with support sliding connection.

Through adopting above-mentioned technical scheme, when pressing from both sides the bottom plate tight, the operation personnel rotate the second screw rod, and second screw rod pivoted in-process drives the briquetting downstream, alright compress tightly the bottom plate when the briquetting downstream. The driving mode has simple structure, can tightly press the bottom plates with different thicknesses, and has higher universality.

Preferably, the clamping assembly is a quick clamp.

By adopting the technical scheme, when the rapid clamp is used, an operator can clamp the bottom plate by holding and rotating the handle part of the rapid clamp; the rapid clamp is arranged to clamp the bottom plate, and the operation is convenient.

Preferably, a blank holder strip is connected in the movable groove in a sliding mode in the horizontal direction, the top wall of the blank holder strip is flush with the top wall of the supporting seat, and a fastening piece is arranged between the supporting seat and the blank holder strip.

By adopting the technical scheme, in order to avoid the shaking of the bottom plate on the adjusting plate, the bottom plate needs to be clamped, and when the bottom plate is clamped, the blank holder strip slides along the movable groove until the bottom plate is abutted by the blank holder strip and the inner wall of the movable groove; the bottom plate is clamped tightly by arranging the blank holder, so that shaking between the bottom plate and the pins can be further avoided.

Preferably, the inner wall of the movable groove is provided with a sliding groove along the direction parallel to the moving direction of the blank holder, and the side wall of the blank holder is fixedly connected with a sliding block capable of sliding along the sliding groove.

By adopting the technical scheme, when the blank holder strip is pushed to slide, the sliding blocks on the two sides of the blank holder strip slide along the sliding grooves; through setting up spout and slider, play the guide effect to the motion of blank holder, can avoid the motion of blank holder to take place the skew.

Preferably, the side wall of the supporting seat is provided with a waist groove connected with the sliding groove, and the fastening piece is a locking screw which penetrates through the waist groove and is in threaded connection with the sliding block.

By adopting the technical scheme, when the blank holder is fixed, the locking screw penetrates through the waist groove and then is screwed with the sliding block, so that the sliding groove and the sliding block can be fixed; the fixing mode has simple structure and lower manufacturing cost.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the height difference between the top wall of the adjusting plate and the top wall of the supporting seat is utilized to reduce the shaking between the pins and the bottom plate when the gland is buckled, so that the pins can be clamped more accurately, namely, a test piece can be clamped more accurately;

2. the lifting assembly is arranged to drive the adjusting plate to move up and down, so that the device is suitable for test pieces with pipe shells of different thicknesses and has high universality;

3. the bottom plate is clamped tightly by the blank holder, so that the pin and the bottom plate can be further prevented from sliding, and the test piece can be further clamped more accurately.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of a lifting assembly in embodiment 1 of the present application;

fig. 4 is a partial structural schematic diagram of embodiment 2 of the present application.

Description of reference numerals: 1. a base plate; 11. a plate body; 13. a gland; 14. a pin; 15. a joint; 2. a support assembly; 21. a supporting seat; 22. an adjusting plate; 23. a support pillar; 24. a movable groove; 3. edge pressing strips; 31. a chute; 32. a slider; 33. a waist groove; 34. a fastener; 4. a lifting assembly; 41. a first screw; 42. a lead screw nut; 43. a rotating seat; 44. a first guide post; 45. a guide block; 46. a transfer block; 5. a clamping assembly; 51. a support; 52. a second screw; 53. briquetting; 54. a second guide post; 55. a clamp base; 56. a pressure head; 57. and (4) holding the handle.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses anchor clamps are used in test of packaged semiconductor discrete device.

Example 1

Referring to fig. 1 and 2, the jig for testing the packaged semiconductor discrete device includes a base plate 1, a pressing cover 13 elastically hinged on the base plate 1, and a supporting member 2 connected to the base plate 1.

Referring to fig. 1 and 2, the bottom plate 1 includes a plate body 11 and a plurality of joints 15 welded on the plate body 11 and used for being connected with pins 14, the gland 13 is hinged with the side wall of the plate body 11, a torsion spring is connected between the gland 13 and the plate body 11, and one end of the torsion spring and the gland 13 are fixedly connected with the other end of the plate body 11 through soldering tin.

Referring to fig. 1 and 2, the support assembly 2 includes a support base 21 and an adjusting plate 22, wherein a plurality of support columns 23 are welded to the bottom wall of the support base 21; a movable groove 24 penetrates through the top wall of the supporting seat 21 along the vertical direction, a blank holder strip 3 is connected in the movable groove 24 in a sliding mode in the horizontal direction, the thickness of the blank holder strip 3 is 1mm, and the top wall of the blank holder strip 3 is flush with the top wall of the supporting seat 21; the spout 31 has been seted up along the direction of motion that is on a parallel with blank holder 3 to the 24 inner walls in activity groove, and the integrative rigid coupling of blank holder 3 lateral wall has can follow the gliding slider 32 of spout 31, and the spout 31 is the T-slot in this embodiment, and slider 32 is the T-shaped piece, and the waist groove 33 of being connected with spout 31 is seted up to supporting seat 21 lateral wall, still is equipped with the fastener 34 that is used for locking slider 32 on the supporting seat 21, and fastener 34 is for passing the locking screw of waist groove 33 and with slider 32 threaded connection.

Referring to fig. 1 and 3, the adjusting plate 22 is disposed below the blank holder 3, the adjusting plate 22 can be slidably connected to the supporting base 21 along the vertical direction, the supporting base 21 is provided with a lifting assembly 4 for driving the adjusting plate 22 to move up and down along the vertical direction, and the lifting assembly 4 includes a first screw 41 and a lead screw nut 42; two rotating seats 43 are welded on the side wall of the supporting column 23, the two rotating seats 43 are distributed vertically along the vertical direction, the axis of the first screw rod 41 is vertical, two ends of the first screw rod 41 are respectively rotatably connected with the two rotating seats 43, and the bottom end of the first screw rod 41 penetrates through the rotating seats 43 and extends to one side of the rotating seats 43, which is far away from the supporting seat 21; the screw nut 42 is in threaded connection with the first screw rod 41, a first guide column 44 is welded between the two rotating seats 43, a guide block 45 which is in sliding connection with the first guide column 44 along the vertical direction is welded on the side wall of the first screw nut 42, an L-shaped switching block 46 is further welded on the side wall of the screw nut 42, and the switching block 46 is fixedly connected with the adjusting plate 22 through screws.

Referring to fig. 1 and 2, a clamping assembly 5 for fixing the base plate 1 is mounted on the supporting seat 21, the clamping assembly 5 includes a support 51, a second screw 52 and a pressing block 53, the support 51 is in an inverted L shape, the support 51 is welded to the top wall of the supporting seat 21, the second screw 52 is located above the base plate 1, the axis of the second screw 52 is vertical, and the second screw 52 passes through the support 51 and is in threaded connection with the support 51; the pressing block 53 is arranged at one end, close to the adjusting plate 22, of the second screw 52, the second screw 52 is rotatably connected with the pressing block 53, the support 51 is provided with a second guide column 54, the second guide column 54 penetrates through the top wall of the support 51 along the vertical direction and is slidably connected with the support 51 along the vertical direction, and the bottom end of the second guide column 54 is welded with the pressing block 53.

The implementation principle of the embodiment 1 is as follows: during operation, the bottom plate 1 is placed on the adjusting plate 22, the bottom plate 1 is clamped between the blank holder 3 and the inner wall of the movable groove 24, after the bottom plate 1 is placed, an operator can select whether to clamp the plate body 11 by using the clamping assembly 5 according to actual requirements, if the plate body 11 needs to be clamped, the operator rotates the second screw rod 52, and the pressing block 53 can be driven to move downwards when the second screw rod 52 rotates, so that the plate body 11 can be clamped; then, the operator places the tube cases on the adjusting plate 22 or the blank holder 3 in sequence, and makes the pins 14 on the tube cases butt with the joints 15 on the plate body 11, and after the tube cases are placed, the pressing block 53 is firstly loosened, and then the pressing cover 13 is buckled with the plate body 11.

If the clamping of different types of shells is required, the operator needs to adjust the position of the edge strip 3 or adjust the height of the adjusting plate 22.

When adjusting the position of blank holder 3, the operating personnel loosens the locking screw, slides blank holder 3 to required position along spout 31 again, slides blank holder 3 to required position after, and the operating personnel screws up spout 31 and slider 32 with the locking screw.

When the height of the adjusting plate 22 is adjusted, the operator rotates the first screw rod 41, and when the first screw rod 41 is rotated, because the guide block 45 has a guiding effect on the screw nut 42, the screw nut 42 can rotate relative to the first screw rod 41, and meanwhile, the screw nut 42 moves up and down along the screw rod, and the adjusting plate 22 is driven to move by driving the transfer block 46 in the process of the up-and-down movement of the screw nut 42.

Example 2

Referring to fig. 4, the present embodiment is different from embodiment 1 in that the clamping assembly 5 is different, in which the clamping assembly 5 is a quick clamp, the quick clamp includes a clamp seat 55, a pressing head 56, and a holding handle 57, the clamp seat 55 is fixedly connected to the top wall of the supporting seat 21 through a screw, the pressing head 56 is hinged to the clamp seat 55, and the holding handle 57 is fixedly connected to the pressing head 56.

The implementation principle of the embodiment 2 is as follows: when the base plate 1 is clamped by the quick clamp, an operator rotates the holding handle 57, and the holding handle 57 can drive the pressing head 56 to press the base plate 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a packaged semiconductor discrete device test is with anchor clamps which characterized in that: including bottom plate (1), elasticity articulate in gland (13) on bottom plate (1) and with supporting component (2) that bottom plate (1) is connected, supporting component (2) are including supporting seat (21) and regulating plate (22), movable groove (24) have been seted up to supporting seat (21) roof, regulating plate (22) are located in movable groove (24), regulating plate (22) roof with supporting seat (21) roof is formed with the difference in height in vertical direction, bottom plate (1) are located regulating plate (22) roof.

2. The jig for testing the packaged semiconductor discrete device as claimed in claim 1, wherein: adjusting plate (22) along vertical direction with supporting seat (21) sliding connection, be equipped with lifting unit (4) on supporting seat (21), lifting unit (4) include first screw rod (41) and screw nut (42), the axis of first screw rod (41) vertical and with supporting seat (21) rotate to be connected, screw nut (42) with first screw rod (41) threaded connection and along vertical direction with supporting seat (21) sliding connection, adjusting plate (22) with screw nut (42) fixed connection.

3. The jig for testing the packaged semiconductor discrete device as claimed in claim 1, wherein: and the supporting seat (21) is provided with a clamping assembly (5) for fixing the bottom plate (1).

4. The jig for testing the packaged semiconductor discrete device as claimed in claim 3, wherein: centre gripping subassembly (5) include support (51), second screw rod (52) and briquetting (53), support (51) with supporting seat (21) fixed connection, second screw rod (52) are located the axis of bottom plate (1) top and second screw rod (52) is vertical, second screw rod (52) pass support (51) and with support (51) threaded connection, briquetting (53) are located second screw rod (52) are close the one end of regulating plate (22), second screw rod (52) with briquetting (53) rotate and are connected, briquetting (53) along vertical direction with support (51) sliding connection.

5. The jig for testing the packaged semiconductor discrete device as claimed in claim 3, wherein: the clamping component (5) is a quick clamp.

6. The jig for testing the packaged semiconductor discrete device as claimed in claim 1, wherein: the movable groove (24) is connected with a blank pressing strip (3) in a sliding mode in the horizontal direction, the top wall of the blank pressing strip (3) is flush with the top wall of the supporting seat (21), and a fastening piece (34) is arranged between the supporting seat (21) and the blank pressing strip (3).

7. The jig for testing the packaged semiconductor discrete device as claimed in claim 6, wherein: the inner wall of the movable groove (24) is provided with a sliding groove (31) along the moving direction parallel to the blank holder strip (3), and the side wall of the blank holder strip (3) is fixedly connected with a sliding block (32) capable of sliding along the sliding groove (31).

8. The jig for testing the packaged semiconductor discrete device as claimed in claim 7, wherein: the side wall of the supporting seat (21) is provided with a waist groove (33) connected with the sliding groove (31), and the fastening piece (34) is a locking screw which penetrates through the waist groove (33) and is in threaded connection with the sliding block (32).