Chip bearing device for liquid type cold and hot impact test

Abstract

The utility model provides a chip bearing device for a liquid type cold and hot impact test, the chip bearing device comprises a bearing part and a handle part, the bearing part comprises a bearing assembly and a fixing plate, the bearing assembly is provided with an open slot, the open slot is used for inserting and supporting the fixing plate, and the fixing plate is used for adhering and fixing a chip. The chip is installed on the fixing plate through the high-temperature adhesive tape, and the fixing plate is fixed in the chip bearing device in a slot mode, so that the use frequency of the high-temperature adhesive tape is reduced, the pollution of the high-temperature adhesive tape to fluorine oil is reduced, and the accuracy of a test result is improved.

Description

Technical Field

[0001] This application belongs to the technical field of semiconductor testing, and particularly relates to a chip carrier device for liquid thermal shock testing. Background Art

[0002] Currently, in the existing Thermal Shock Test (TST), the chip is installed on the PCB board through a high-temperature tape, and then the PCB board is fixed around the basket through a high-temperature tape. After that, the basket is placed in a liquid thermal shock testing machine for testing. During the testing process, the fluorinated oil in the liquid thermal shock testing machine is consumed greatly, resulting in frequent manual oil change, which affects the reliability of the test. In addition, the number of chips carried by the existing basket is small, and the machine utilization rate is low, which requires more testing time. Summary of the Utility Model

[0003] One of the purposes of this application is to provide a chip carrier device for liquid thermal shock testing, which reduces the consumption of fluorinated oil and improves the reliability of the test and the machine utilization rate.

[0004] To achieve the above and other related purposes, a chip carrier device for liquid thermal shock testing is provided, which includes a carrying part and a carrying handle. The carrying part includes a carrying component and a fixing plate. An opening slot is provided on the carrying component for the insertion and support of the fixing plate, and the fixing plate is used for adhering and fixing the chips.

[0005] This application has at least the following beneficial effects:

[0006] For the chip in the background art installed on the PCB board through a high-temperature tape and then the PCB board fixed around the basket through a high-temperature tape, the chips in this application are installed on the fixing plate through a high-temperature tape, and the fixing plate is fixed inside the chip carrier device in a slotting manner, reducing the number of times of using the high-temperature tape, thereby reducing the pollution of the fluorinated oil by the high-temperature tape and improving the accuracy of the test results. Description of the Drawings

[0007] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0008] Figure 1 Structural schematic diagram of the chip carrier device shown according to the embodiments of this application;

[0009] Figure 2 ForFigure 1 Partial enlarged view of the installation position of the limiting part;

[0010] Illustration description:

[0011] 100 Carrying part; 110 Frame structure; 200 Handle part; 300 Fixed plate; 10 Rectangular frame; 11 Top plate strip; 12a First bottom plate strip; 12a1 Limiting part; 12b Second bottom plate strip; 12c Third bottom plate strip; 12d Fourth bottom plate strip; 13 Side plate strip; 14 First opening groove; 15 Second opening groove; 16a First connecting piece; 16b Second connecting piece; 16c Third connecting piece; 16d Fourth connecting piece; 17 Door body; 17a Lock tongue; 21 Vertical plate; 22 Inclined plate; D1 First direction, D2 Second direction, D3 Third direction. Specific embodiments

[0012] The following uses specific specific embodiments to illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific implementation manners. Various details in the present application can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0013] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0014] Refer to Figure 1 , this embodiment provides a chip carrying device for liquid type thermal shock test, including: a carrying part 100 for holding chips and a handle part 200 for suspending the carrying part 100 in a liquid type thermal shock test machine.

[0015] The carrier part 100 includes a frame structure 110 and a fixing plate 300 installed inside the frame structure 110 for adhering and fixing chips. The frame structure 110 can reduce the fluorinated oil residue in the liquid thermal shock test. The frame structure 110 includes a carrier assembly, and the carrier assembly is installed on the frame structure 110 or is part of the frame structure 110. An opening groove is provided on the carrier assembly, and the opening groove is used for the insertion and support of the fixing plate 300. Refer to Figure 1 , the fixing plate 300 is vertically inserted into the opening groove, so that the fluorinated oil is not easily retained on the fixing plate 300.

[0016] In the first embodiment of the present application, refer to Figure 1 , a rectangular coordinate system is established along the first direction D1, the second direction D2 and the third direction D3, and the first direction D1, the second direction D2 and the third direction D3 are perpendicular to each other. The frame structure 110 includes a plurality of rectangular frames 10 arranged along the first direction D1 and the third direction D3 and a plurality of connecting members connecting the plurality of rectangular frames 10. The plurality of rectangular frames 10 are parallel to each other and arranged at intervals. The plurality of rectangular frames 10 and the plurality of connecting members connecting the plurality of rectangular frames 10 surround to form the frame structure 110.

[0017] Each rectangular frame 10 includes a top plate strip 11, a bottom plate strip and two side plate strips 13. Among them, the top plate strip 11 and the bottom plate strip are parallel to the first direction D1, and the side plate strip 13 is parallel to the third direction D3.

[0018] The connecting members include two first connecting members 16a and two second connecting members 16b. The first connecting member 16a is sequentially connected to the ends of the top plate strips 11 on the same side of the plurality of rectangular frames 10 along the second direction D2. The two first connecting members 16a are respectively connected to the ends of the top plate strips 11 on different sides of the plurality of rectangular frames 10. The second connecting member 16b is sequentially connected to the ends of the bottom plate strips 11 on the same side of the plurality of rectangular frames 10 along the second direction D2. The two second connecting members 16b are respectively connected to the ends of the bottom plate strips 11 on different sides of the plurality of rectangular frames 10. The above two first connecting members 16a, two second connecting members 16b and the two rectangular frames 10 with the farthest distance between them surround to form the accommodation space of the frame structure 110. The connecting member further includes a third connecting member 16c, and the third connecting member 16c is sequentially connected to the parts of the top plate strips 11 (or bottom plate strips) of the plurality of rectangular frames 10 except the ends.

[0019] The carrier assembly includes the bottom plate strips of the plurality of rectangular frames 10. Among them, the bottom plate strips include a first bottom plate strip 12a, a second bottom plate strip 12b, a third bottom plate strip 12c and a fourth bottom plate strip 12d. In other embodiments, the carrier assembly can also be separately installed on the bottom plate strips of the plurality of rectangular frames 10.

[0020] The first bottom strip 12a, the second bottom strip 12b, the third bottom strip 12c, and the fourth bottom strip 12d are provided with a plurality of first opening grooves 14 that are arranged at intervals along the first direction D1 and penetrate the corresponding bottom strips along the second direction D2. The fourth bottom strip 12d is provided with a plurality of second opening grooves 15 that are arranged at intervals along the first direction D1 but do not penetrate the fourth bottom strip 12d along the second direction D2. The first opening grooves 14 and the second opening grooves 15 face the top strip 11, so that the fixing plate 300 is placed vertically, which further facilitates the flow of fluorine oil. The first opening grooves 14 of the plurality of bottom strips and the second opening grooves 15 form an opening groove portion, and the opening groove portion is used for the insertion and support of the fixing plate 300.

[0021] Refer to Figure 2 , the fixing plate 300 is inserted into or pushed out of the opening groove portion along the second direction D2. The bottom strip is provided with a flared opening on the side where the fixing plate 300 is inserted, and the flared opening communicates with the first opening groove 14, and the flared opening is used to guide the fixing plate 300 to be inserted into the first opening groove 14.

[0022] A plurality of third opening grooves and fourth opening grooves corresponding to the first opening grooves 14 and the second opening grooves 15 of the plurality of bottom strips can be provided on the plurality of top strips 11. The opening directions of the third opening grooves and the fourth opening grooves are opposite to the opening directions of the first opening grooves 14 and the second opening grooves 15. The first opening grooves 14, the second opening grooves 15, the third opening grooves, and the fourth opening grooves cooperate with each other to realize the vertical insertion and placement of the fixing plate 300.

[0023] Refer to Figure 1 and Figure 2 , a limiting portion 12a1 is provided on one side of the first opening groove 14 of the first bottom strip 12a. The limiting portion 12a1 is used to abut against and limit the fixing plate 300 along the first direction D1, restrict the movement of the fixing plate 300 along the second direction D2 through friction or clamping, and prevent the fixing plate 300 from tilting or falling during the test. The limiting portion 12a1 is plural and can be arranged alternately with the first opening groove 14. In other embodiments, the limiting portion can also be located on one side of the first opening groove 14 of the second bottom strip 12b, the third bottom strip 12c and / or on one side of the second opening groove 15 of the fourth bottom strip 12d.

[0024] The limiting portion 12a1 can include a rigid member or an elastic member. The elastic member can be a spring locating bead, for example, a press-in type spring locating bead. When the limiting portion 12a1 restricts the movement of the fixing plate 300 along the second direction D2 through clamping, the limiting portion 12a1 can include an elastic member. Further, through holes or blind holes are provided on the fixing plate 300. After the fixing plate 300 is inserted into the opening groove portion, the elastic member of the limiting portion 12a1 can be snapped into the through holes or blind holes for limiting.

[0025] Refer to Figure 1, the chip carrier device further includes a door body 17. The door body 17 is installed on a rectangular frame 10 including a first bottom plate strip 12a. For example, the door body 17 is hinged to a side plate strip 13 of the rectangular frame 10 and can rotate relative to the side plate strip 13. The rotation axis is parallel to the third direction D3 to open or close the internal space of the frame structure 110. The door body 17 is installed on the side surface of the frame structure 110 with a larger area, facilitating the insertion of the fixing plate 300 into the first opening groove 14.

[0026] In one example, the door body 17 is a hollow structure. The door body 17 can be a rectangular frame equipped with a plurality of fourth connecting members 16d. The fourth connecting members 16d are sequentially connected to the top plate strip 11 and the bottom plate strip of the rectangular frame of the door body 17 along the third direction D3. A locking tongue 17a is installed on the side plate strip 13 of the rectangular frame of the door body 17, and a lock body cooperating with the locking tongue 17a is provided on the side plate strip 13 of the rectangular frame 10 of the frame structure 110.

[0027] The locking tongue 17a uses a return spring. For example, the return spring is a tension spring to improve the locking effect and prevent the door body 17 from being opened during the test, resulting in abnormalities in the liquid type thermal shock testing machine. The section of the locking tongue 17a inserted into the lock body is the insertion section, and the length of the insertion section accounts for more than 1 / 5 of the length of the locking tongue 17a. By setting the length of the insertion section, the length of the locking tongue 17a inserted into the lock body is increased, further improving the locking effect. In the closed state of the door body 17, the side of the first opening groove 14 of the first bottom plate strip 12a facing the door body 17 can be sealed, further restricting the movement of the fixing plate 300 along the second direction D2.

[0028] The handle part 200 is used to hang the bearing part 100 in the liquid type thermal shock testing machine, enabling the bearing part 100 to reciprocate between two high and low temperature test chambers of the liquid type thermal shock testing machine.

[0029] The handle part 200 is installed on the upper part of the frame structure 110, specifically on the top plate strip 11 of the rectangular frame 10 of the frame structure 110. The handle part 200 includes a first handle frame, a second handle frame, and a cross beam connecting the first handle frame and the second handle frame.

[0030] The first handle frame includes a vertical plate 21 and an inclined plate 22.

[0031] The vertical plate 21 includes a main body, an upper extension part, and a lower extension part. The plane where the main body is located is parallel to the first direction D1 and the third direction D3. The upper extension part extends from the upper end of the main body, and the lower extension part extends from the lower end of the main body. The upper extension part and the lower extension part are parallel and perpendicular to the main body respectively. The upper extension part is used to be hung in the liquid type thermal shock testing machine. The lower extension part is used to install the vertical plate 21 on the top plate strip 11 of the rectangular frame 10 of the frame structure 110.

[0032] One end of the inclined plate 22 is installed on the side surface of the vertical plate 21 of the first handle frame, forming a predetermined angle with the vertical plate 21. The other end of the inclined plate 22 away from the vertical plate 21 is installed on the top plate strip 11 of the rectangular frame 10. The inclined plate 22 functions as a reinforcing rib for the vertical plate 21 and also facilitates the flow of fluorine oil along the inclined plate 22.

[0033] The structure of the second handle frame is the same as that of the first handle frame, and it is arranged on the top plate strip 11 of the rectangular frame 10 at a predetermined interval from the first handle frame.

[0034] The cross beam is used for manual gripping and taking in and out the chip carrier device from the liquid type thermal shock testing machine. The cross beam may include two round rods to increase the stability during gripping and moving.

[0035] The fixing plate 300 is a polyimide plate, an aluminum plate or a steel plate, or can also be made of other materials that are not easy to adsorb fluorine oil.

[0036] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A chip carrier device for liquid thermal shock testing, characterized in that, It includes a bearing part and a handle part. The bearing part includes a bearing component and a fixing plate. An opening groove is provided on the bearing component, and the opening groove is used for the insertion and support of the fixing plate, and the fixing plate is used for adhering and fixing a chip.

2. The chip carrier device according to claim 1, wherein The bearing part is of a frame structure, and the frame structure includes a plurality of rectangular frames and a plurality of connecting members connecting the plurality of rectangular frames.

3. The chip carrier device according to claim 2, wherein, The rectangular frame includes a top plate strip, a bottom plate strip and two side plate strips, and the bearing component includes the bottom plate strips of the plurality of rectangular frames.

4. The chip carrier device according to claim 3, wherein The bottom plate strip includes a first bottom plate strip, a second bottom plate strip, a third bottom plate strip and a fourth bottom plate strip. The first bottom plate strip, the second bottom plate strip and the third bottom plate strip are provided with a plurality of first opening grooves arranged at intervals in a first direction and penetrating the corresponding bottom plate strip in a second direction perpendicular to the first direction. The fourth bottom plate strip is provided with a plurality of second opening grooves arranged at intervals in the first direction but not penetrating the fourth bottom plate strip in the second direction. The first opening grooves and the second opening grooves face the top plate strip of the rectangular frame.

5. The chip carrier device according to claim 4, wherein, The first bottom plate strip includes a limiting part, and the limiting part is located on one side of the first opening groove of the first bottom plate strip.

6. The chip carrier device according to claim 5, wherein, The first opening grooves and the second opening grooves of the plurality of bottom plate strips form an opening groove part; through holes are provided on the fixing plate. After the fixing plate is inserted into the opening groove part, the limiting part can be snapped into the through holes for limiting.

7. The chip carrier device according to claim 6, wherein, The chip bearing device further includes a door body, and the door body can seal the side of the first opening groove of the first bottom plate strip facing the door body in a closed state.

8. The chip carrier device according to claim 2, wherein The handle part includes a first handle frame, a second handle frame and a cross beam connecting the first handle frame and the second handle frame.

9. The chip carrier device according to claim 8, wherein, The first handle frame includes a vertical plate and an inclined plate. One end of the inclined plate is installed on the side surface of the vertical plate of the first handle frame and forms a predetermined angle with the vertical plate; the other end of the inclined plate away from the vertical plate is installed on the frame structure.

10. The chip carrier device according to claim 1, wherein, The fixing plate is a polyimide plate, an aluminum plate or a steel plate.

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