CN216485388U - Test load board and automatic test equipment - Google Patents
Test load board and automatic test equipment Download PDFInfo
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- CN216485388U CN216485388U CN202123202150.5U CN202123202150U CN216485388U CN 216485388 U CN216485388 U CN 216485388U CN 202123202150 U CN202123202150 U CN 202123202150U CN 216485388 U CN216485388 U CN 216485388U
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Abstract
The utility model discloses a test load board and automatic test equipment, test load board is including relative first surface and the second surface that sets up, install the heat sink on the first surface, the second installs insulation construction on the surface, forms the cavity between insulation construction and the second surface, installs the drier layer in the cavity. The utility model discloses a structural design at the test load board dead back can effectively solve the test load board back and condense the frozen problem at low temperature, has avoided automatic test equipment's short circuit phenomenon.
Description
Technical Field
The utility model discloses integrated circuit test technical field, concretely relates to test load board and automatic test equipment.
Background
Automatic Test Equipment (ATE) is a Test instrument that is a combination of a tester and a computer. The tester includes various test hardware, and the instructions of the computer running the test program control the test hardware in the tester to automatically test the DIE or IC. ATE can perform multiple tests separately for different integrated circuits, such as memory, digital circuitry, analog circuitry, and mixed signal circuitry.
The test Load Board (Load Board) is a mechanical and circuit interface in automatic test equipment, and the test head is fixedly arranged on the back surface of the test Load Board. However, in a low-temperature working environment, the back of the test load board freezes due to condensation, and water drops enter the inside of the ATE to cause short circuit, so that the machine is damaged.
Therefore, in view of the above technical problems, it is desirable to provide a test load board and an automatic test equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test load board and automatic test equipment to solve the frozen technical problem of load board back low temperature.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
the utility model provides a test load board, test load board is including relative first surface and the second surface that sets up, install the heat sink on the first surface, install insulation construction on the second surface, form the cavity between insulation construction and the second surface, install the drier layer in the cavity.
In one embodiment, the heat insulating structure includes a first sealing layer, a second sealing layer and a heat insulating layer, the second sealing layer is located between the first sealing layer and the second surface, and the heat insulating layer is located between the first sealing layer and the second sealing layer.
In one embodiment, the desiccant layer is located between the second sealing layer and the second surface.
In one embodiment, the first sealing layer, the second sealing layer and the desiccant layer are mounted at the same position on the second surface.
In one embodiment, the first sealing layer, the second sealing layer and the desiccant layer are fixedly mounted on the second surface through screws.
In one embodiment, the cooling device comprises a hollow cooling cavity, the cooling cavity is provided with an air inlet and an air outlet, and cold air flow enters the cooling cavity from the air inlet and is discharged from the air outlet, so that the cooling of the test load board is realized.
In one embodiment, the air inlet hole is positioned on the upper surface of the cooling cavity, and/or the air outlet hole is positioned on the side surface of the cooling cavity.
In one embodiment, the second surface of the test load board is provided with a test head, and the heat insulation structure is located inside the test head.
An embodiment of the utility model provides a technical scheme as follows:
an automatic test equipment, the automatic test equipment includes above-mentioned test load board.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a structural design at the test load board dead back can effectively solve the test load board back and condense the frozen problem at low temperature, has avoided automatic test equipment's short circuit phenomenon.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test load board according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.
The utility model discloses a test load board, this test load board install the heat sink on the first surface including relative first surface and the second surface that sets up, and the second installs insulation construction on the surface, forms the cavity between insulation construction and the second surface, installs the drier layer in the cavity.
The utility model also discloses an automatic test equipment, this automatic test equipment include foretell test load board.
The present invention will be further described with reference to the following specific examples.
Referring to fig. 1, the test load board 10 in this embodiment includes a first surface 11 and a second surface 12 that are opposite to each other, where a cooling device is installed on the first surface 11, a thermal insulation structure is installed on the second surface 12, a cavity is formed between the thermal insulation structure and the second surface, and a desiccant layer is installed in the cavity.
Specifically, the cooling device in this embodiment includes a hollow cooling cavity 13, the cooling cavity 13 is integrally and fixedly mounted on the first surface 11 in a cylindrical shape, an air inlet hole 131 is formed in the upper surface of the cooling cavity, an air outlet hole 132 is formed in the side surface of the cooling cavity, and the air inlet hole 131 and the air outlet hole 132 are respectively communicated with the hollow cavity.
It should be understood that the cooling device in this embodiment is described by taking a cylindrical cooling cavity as an example, the air inlet and the air outlet are respectively located on the upper surface and the side surface of the cooling cavity, the cooling cavity can be of other structures in other embodiments, the positions of the air inlet and the air outlet can also be located at other positions of the cooling cavity, and all technical solutions that the cooling cavity is adopted to reduce the temperature of the test load board belong to the protection scope of the present invention.
The heat insulation structure in this embodiment includes a first sealing layer 14, a second sealing layer 15, and a heat insulation layer 16, where the second sealing layer 15 is located between the first sealing layer 14 and the second surface 12, and the heat insulation layer 16 is located between the first sealing layer 14 and the second sealing layer 15. A cavity is formed between the second sealing layer 15 of the heat preservation structure and the second surface 12, and a drying agent layer 17 is arranged in the cavity.
Specifically, in the present embodiment, the first sealing layer 14, the second sealing layer 15 and the drying agent layer 17 are respectively fixed and installed at the same position on the second surface through screws, and the heat insulation layer 16 is filled in a space cavity formed by the first sealing layer 14 and the second sealing layer 15.
Further, a test head 18 is mounted on the second surface of the test load board, and the insulation structure is located inside the test head.
The working principle of the utility model is as follows:
during low-temperature operation, cold air flow enters the cooling cavity 13 from the air inlet hole 131 and is exhausted from the air outlet hole 132, the cold air flow flows through the first surface 11 of the test load board, and the test load board starts to be cooled;
the second surface 12 of the test load board is also cooled, and the air remaining in the cavity formed by the second sealing layer 15 and the second surface 12 begins to be cooled, so that a small amount of water vapor contained in the cavity is condensed into water and absorbed by the desiccant layer 17, and no water vapor exists in the cavity;
the second sealing layer 15 is cooled, and heat cannot be transferred to the second sealing layer 15 from the outside because the heat insulation layer 16 is filled between the first sealing layer 14 and the second sealing layer 15, so that the temperature of the first sealing layer 14 is kept unchanged;
the first sealant layer 14 does not freeze due to condensation, so that the test head 18 does not risk condensation, and the problem of short circuit caused by water drops entering the testing machine is avoided.
According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:
the utility model discloses a structural design at the test load board dead back can effectively solve the test load board back and condense the frozen problem at low temperature, has avoided automatic test equipment's short circuit phenomenon.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a test load board, its characterized in that, test load board is including relative first surface and the second surface that sets up, install the heat sink on the first surface, install insulation construction on the second surface, form the cavity between insulation construction and the second surface, install the drier layer in the cavity.
2. The test load board of claim 1, wherein the insulation structure comprises a first sealing layer, a second sealing layer, and an insulation layer, the second sealing layer being positioned between the first sealing layer and the second surface, the insulation layer being positioned between the first sealing layer and the second sealing layer.
3. The test load plate of claim 2, wherein the desiccant layer is positioned between the second sealing layer and the second surface.
4. The test load plate of claim 3, wherein the first sealant layer, the second sealant layer, and the desiccant layer are mounted at the same location on the second surface.
5. The test load plate of claim 3, wherein the first sealant, the second sealant and the desiccant layer are fixedly mounted to the second surface by screws.
6. The test load board of claim 1, wherein the cooling device comprises a hollow cooling chamber, the cooling chamber has an air inlet and an air outlet, and a cold air flow enters the cooling chamber through the air inlet and is exhausted through the air outlet, thereby cooling the test load board.
7. The test load board of claim 6, wherein the air inlet holes are located on an upper surface of the cooling chamber and/or the air outlet holes are located on a side surface of the cooling chamber.
8. The test load board of claim 1, wherein the second surface of the test load board has a test head mounted thereon, and wherein the thermal retention structure is located within the test head.
9. An automatic test equipment comprising a test load board according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123202150.5U CN216485388U (en) | 2021-12-17 | 2021-12-17 | Test load board and automatic test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123202150.5U CN216485388U (en) | 2021-12-17 | 2021-12-17 | Test load board and automatic test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216485388U true CN216485388U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123202150.5U Active CN216485388U (en) | 2021-12-17 | 2021-12-17 | Test load board and automatic test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216485388U (en) |
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2021
- 2021-12-17 CN CN202123202150.5U patent/CN216485388U/en active Active
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