KR100799248B1 - Device for testing temperature of memory module - Google Patents

Abstract

A device for checking temperature of a memory module is provided to decrease or increase the test surface of the memory module at the desirable temperature without moving the memory module to a high or low temperature chamber and to minimize the work time. A device(100) for checking temperature of a memory module comprises a base frame(10) placing at least one memory module and testing the placed memory modules; a cold/hot system(20) applying temperature conditions to the memory module; a holder(30) installed on the base frame and equipped with the cold/hot system to move the cold/hot system; and a control unit(70) electrically connected with the cold/hot system to control the cold/hot system. The cold/hot system comprises a housing combined to the holder; a thermoelectric element installed in the housing; a radiating plate installed at one surface of the thermoelectric element; a heating element mounted at the radiating plate to generate heat; a heat sink installed on the other surface of the thermoelectric element; and a blower fan installed at the housing to blow the internal air of the housing to the memory module.

Description

Device for testing temperature of memory module

1 is a perspective view illustrating a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

2 is a side view of a memory module temperature checking device according to an exemplary embodiment of the present invention.

3 is a side view illustrating a cradle of a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

4 is a front view illustrating a cradle of a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

5 is a perspective view illustrating a cold temperature system of a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

6 is an exploded perspective view illustrating an internal configuration of a cold temperature system of a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

7 is a schematic cross-sectional view of a cold temperature system of a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

8 is a schematic front sectional view of a cold temperature system of a memory module temperature test apparatus according to an exemplary embodiment of the present invention.

9 is a perspective view illustrating a state of use of the memory module temperature checking apparatus according to an exemplary embodiment of the present invention.

10 is a schematic circuit diagram of a memory module temperature checking apparatus according to an exemplary embodiment of the present invention.

11 and 12 are a perspective view and a partially cut side view showing the cradle of the memory module temperature test apparatus according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: base frame 11: workbench

20: cold temperature system 21: housing

22: thermoelectric element 23: heat sink

25: heat sink 27: heating element

28: blowing fan 29: cooling fan

30: holder 31: guide rail

32: front and rear moving member 33: rotating member

34: vertical bar 35: lifting subsection

36: horizontal bar 37: left and right moving member

38: rotating shaft 40, 43: screw member

41,44 handle 42: locking member

51: body 52: wire

60: charging hole 61: connector

63: divider 64: guide plate

70: control unit 71: temperature sensor

72 controller 73 switch unit

74: power supply unit 75: display unit

80,82 Bracket 81: Protective tube

83: slit 84: elastic spring

The present invention relates to an apparatus for checking temperature reliability for a memory module. More specifically, the present invention relates to a memory module temperature test apparatus that can easily provide a temperature test condition of a memory module.

In general, random access memory (RAM), which is used as a memory of a computer, constitutes a module by combining 8 to 16 memory chips.

The memory module may be used in a variety of conditions, and since a failure may occur due to self-heating due to the use of the memory module, a temperature reliability test is performed before shipment of the product.

However, the conventional memory module temperature reliability test equipment has a problem in that the test is performed by applying a temperature condition by putting the entire memory module inside the chamber in a chamber form.

Therefore, as the whole chamber is heated for high temperature inspection, the inspection time becomes long, and it is difficult to maintain accurate temperature, and even if only a local inspection of a part of the memory module is required, the entire memory module needs to be heated. There is a problem that is consumed.

In addition, the above-described conventional equipment is a structure for inspecting only the high temperature conditions, but the high temperature performance test is possible, but the low temperature performance test cannot be performed, and the low cost performance test requires a separate low temperature room, which is expensive. The work was inconvenient and difficult because it was consumed and the operator had to move the memory module to the low temperature room and the high temperature room one by one.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a memory module inspection apparatus which is capable of providing a test condition by simply heating or cooling a memory module.

In addition, another object of the present invention is to provide a memory module inspection apparatus that enables inspection by heating or cooling only a part of a memory module.

In order to achieve the above object, the memory module temperature test apparatus according to the present invention has a structure in which a test environment is locally heated or cooled by using a thermoelectric element to provide a test environment.

To this end, the inspection apparatus includes a base frame on which a memory module is placed and a test is performed, a cold / hot system for imparting temperature conditions to the memory module, and a cradle for moving the cold / hot system by installing the cold / hot system on the base frame. It may be electrically connected to the cold temperature system may include a control unit for controlling the temperature of the cold temperature system.

The base frame may include at least one or more worktables on which the memory modules are fixed, and may inspect the plurality of memory modules.

The cradle is a guide rail installed on the base frame, the front and rear movement member placed on the rail and moved, the rotation member pivotally coupled to the front and rear movement member, vertically installed on the rotation member The bar may include a lifting member moving up and down along the vertical bar, a horizontal bar installed horizontally on the lifting member, and a left and right moving member installed to be movable along the horizontal bar and coupled with the cold / warm system.

In addition, the cradle may further include a fixing part for fixing the position of each moving member and the elevating member.

In addition, the cradle may be further provided with an elastic portion for compensating for the weight applied to the lifting member between the lifting member and the vertical bar.

Here, the cold temperature system is a housing coupled to the cradle, the heating element is installed inside the housing to generate heat, the thermoelectric element is installed in the housing, the cooling means for cooling the heat generated in the thermoelectric element and the housing It may include a blower fan installed to eject the hot or cold air generated in the housing to the memory module.

The cold unit may further include a temperature sensor for measuring the temperature of the wind discharged from the blowing fan.

The cooling means may include a heat sink in contact with the thermoelectric element and a cooling fan installed on one side of the housing to distribute air to the heat sink.

The control unit includes a switch unit for applying an operation signal, a controller for controlling each component in accordance with an operation signal of the switch unit, a power supply unit for applying necessary current to the heating element and the thermoelectric element according to an output signal of the controller; And a display unit connected to the controller to output necessary data.

The control unit may be integrally installed in the cold / warm system or provided separately from the cold / warm system, and may be connected through a cable for transmitting and receiving data.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a perspective view illustrating a memory module temperature checking device according to an embodiment of the present invention, and FIG. 2 is a side view of the memory module temperature checking device according to an embodiment of the present invention.

According to the above-described drawings, the inspection apparatus 100 according to the present embodiment includes a base frame 10 in which a memory module is placed to be inspected, a cold / warm system 20 for applying a temperature condition to the memory module, and the base frame. It is installed on the (10) and the cold temperature system 20 is mounted on the cradle 30 for moving the cold temperature system 20, electrically connected to the cold temperature system 20 to adjust the temperature of the cold temperature system 20 It includes a control unit 70 for doing.

The base frame 10 is a structure having a plurality of stages, and on each stage, a work bench 11 for inspecting a memory module is installed.

The main board (see B of FIG. 10) installed with a memory module (see M of FIG. 9) for inspection through a separate bracket (see 12 of FIG. 9) is mounted on the work table 11 to perform inspection. You lose.

The bracket 12 is for correct mounting of the main board (B) can be variously modified according to the shape of the main board (B), and is not particularly limited in structure.

In the present exemplary embodiment, the base frame 10 is composed of three stages and four working tables 11 are provided on each stage, so that all 12 memory modules can be inspected. ) Is not limited thereto.

In addition, the base frame 10 has a structure in which wheels 13 are installed at each corner of the bottom to easily move the base frame 10.

The cradle 30 is installed near each workbench 11 of the base frame 10 to accurately move the cold / warm system 20 on the memory module M of the main board B placed on the workbench 11. And a fixed structure.

3 and 4 are views showing the holder and the holder will be described with reference to the drawings.

The cradle 30 is a guide rail 31 is installed along the side of the workbench 11 on the end of the base frame 10, and placed on the guide rail 31 to move along the guide rail 31 The front and rear movement member 32, the rotation member 33 pivotally coupled on the front and rear movement member 32, the vertical bar 34 vertically installed on the rotation member 33, and the vertical bar. An elevating member 35 which is moved up and down along the 34, a horizontal bar 36 installed horizontally on the elevating member 35, and movable along the horizontal bar 36 and the cold temperature system ( 20 is coupled to the left and right moving member 37, the left and right moving member 37 and the vertical bar 34 and the movable member for fixing the position of each member, the lifting member Is installed between the 35 and the vertical bar 34 includes an elastic portion for compensating the weight applied to the elevating member (35) The.

Accordingly, according to the movement of each of the movable members 32 and 37 and the elevating member 35, the cold / warm system 20 installed on the left and right movable members 37 is before, after, left, and right with respect to the work bench 11. It is possible to move in the up and down directions to be positioned on the memory module (M).

The guide rail 31 has a groove formed in the longitudinal direction and the front and rear movement member 32 is moved along the groove.

Looking at the fixing part for fixing the front and rear movement member 33, one side of the front and rear movement member 32 is provided with a screw member 40 screwed toward the guide rail (31). Accordingly, by turning the handle 41 connected to the screw member 40, the tip of the screw member 40 is tightened or loosened to the guide rail 31 to fix or fix the front and rear moving member 32 with respect to the guide rail 31. Will be released.

In addition, a rotation shaft 38 is installed in the vertical direction on an upper portion of the front and rear movement member 32, and the rotation member 33 is pivotally coupled to the rotation shaft 38.

Unexplained reference numeral 39 is a bearing installed between the pivot shaft 38 and the pivot member 33.

In addition, the vertical bar 34 is installed vertically on the rotating member 33 has a structure in which the lifting member 35 moves up and down with respect to the worktable 11 along the vertical bar 34.

A fixing part for fixing the position of the elevating member 35 with respect to the vertical bar 34 is fitted with the vertical bar 34 to be elevated and lowered, and a locking member 42 positioned below the elevating member 35, and the Screwed to the locking member 42 includes a screw member 43 for tightening or loosening the locking member 42 with respect to the vertical bar (34).

Accordingly, when the handle 44 installed on the screw member 43 is turned, it can be fixed by moving the locking member 42 to a desired position, and the lifting member 35 falls down while being caught by the locking member 42. It is possible to prevent the lifting member 35 to be fixed to the desired position.

The horizontal bar 36 is installed on the elevating member 35 to extend horizontally above the worktable 11.

The left and right moving members 37 penetrate and move on the horizontal bar 36, and the left and right moving members 37 are also provided with screw members (not shown) to fix their positions with respect to the horizontal bar 36. It is made to structure.

In addition, a support 45 is fixed to the outer end of the horizontal bar 36 to prevent the left and right moving member 37 is separated.

Here, since the cold temperature system 20 is installed in the left and right moving members 37, the lifting member 35 may not only move its own weight but also may be inconvenient to move upward by adding the weight of the cold temperature system 20.

Therefore, an elastic part is installed between the elevating member 35 and the vertical bar 34 to compensate for the weight of the elevating member 35.

In the present embodiment, the elastic part is connected to the elastic spring (not shown), the elastic spring (not shown) installed in the main body 51 installed in the bracket 50 on the top of the vertical bar 34, the said It extends to the lower portion of the main body 51 includes a wire 52 connected to the elevating member 35 and the control knob 53 is installed outside the main body 51 to adjust the tension of the elastic spring. .

Therefore, the tension of the elastic spring is applied to the elevating member 35 caught on the wire 52, thereby reducing the load applied to the elevating member 35.

 The elastic portion is not limited to the structure according to the embodiment, for example, only the structure that the elastic spring is caught between the bracket 50 and the lifting member 35 will also be applicable.

11 and 12 show a holder provided with an elastic portion of another embodiment.

In the following description, the same reference numerals are used for the same components, and description thereof will be omitted.

According to the drawings, the elastic portion installed in the cradle of the present embodiment is an elastic spring 84 elastically installed between the bracket 80 is installed on the vertical bar 34, the bracket 80 is installed on the elevating member (35) And a protection tube 81 installed vertically between the bracket 80 and the front and rear movement member 32 and surrounding the elastic spring, and a bracket formed in the protective tube in a longitudinal direction and connected to the elastic spring 84. And (82) a slit 83 through which the axis is guided.

Accordingly, the tension of the elastic spring 84 is applied to the elevating member 35, thereby reducing the load applied to the elevating member 35.

Meanwhile, FIGS. 5 to 8 illustrate the structure of the cold / warm system 20 according to the present embodiment.

According to the above drawings, the cold / warm system 20 includes a housing 21 having an upper end coupled to the left and right moving members 37, a thermoelectric element 22 installed in the housing 21, and the thermoelectric element 22. A heat sink 23 having a heat dissipation fin 24 formed in contact with one surface of the heat sink 25, a heat sink 25 having a heat dissipation rib 26 installed in contact with an opposite side of the thermoelectric element 22, and installed in the heat sink 23. Heating element 27 generating heat, a blowing fan 28 installed in the housing 21 to blow out hot or cold air generated in the housing 21 to the memory module M, and the blowing fan 28 The temperature sensor 71 for measuring the temperature of the wind discharged from the) and the cooling fan 29 is installed on the housing 21 to introduce the outside air into the housing 21.

Unexplained reference numeral 61 is a connector unit is provided with a connector for the cable connecting the cold and hot system 20 and the control unit 70, 62 is installed in the connector unit operating state of the cold and hot system 20 LED lamp to display outside.

The housing 21 is not particularly limited in shape or size, and in the present embodiment, has a rectangular box shape.

A plurality of cooling fans 29 are installed at the upper end of the housing 21 to introduce external air into the housing 21. In addition, a blower fan 28 is installed at a lower end to blow air passing through the heating element 27 and the thermoelectric element 22 inside the housing 21 to the lower side.

The heating element 27 is to provide a main heat source to the heat dissipation plate 23 and may be applicable to any structural surface for converting electrical energy into thermal energy, such as a heating coil or a heating plate.

In this embodiment, a cylindrical heat transfer coil is formed to be inserted into the charging hole 60 formed in the heat sink 23.

In addition, the thermoelectric element 22 is to provide an auxiliary heat source for the heat generating element 27 which is a main heat source, and provides heat and cold to the heat sink 23 to adjust the minute temperature.

The thermoelectric element 22 is a device using a cooling effect generated when a bipolar semiconductor is combined, that is, in a dissimilar metal, since the potential energy of electrons in the metal is different, the thermoelectric element 22 is in a high state from a metal having a low potential energy. The transport of electrons to the metal requires energy from the outside, so that heat energy is desorbed from the contacts, and in the opposite case, heat energy is released, and the temperature rises and falls by changing the direction of the current according to this principle.

The thermoelectric element 22 is already disclosed at the level of those skilled in the art, so a description thereof will be omitted.

As described above, the thermoelectric element 22 itself generates heat by heating the one side of the heating surface along the direction of the current, and cools the opposite cooling surface to apply heat or cold air to the air inside the housing 21.

According to the present embodiment, as shown in FIG. 7, the thermoelectric element 22 and the heat sink 23 and the heat sink 25 in contact with both surfaces of the thermoelectric element 22 are both based on the center of the housing 21. It is installed symmetrically in. That is, each heat sink 23 is positioned at the center so that the heat dissipation fins 24 face the center of the housing 21, and the thermoelectric elements 22 are in contact with the outside of the heat sink 23, and the outer surfaces of the thermoelectric elements 22 are positioned at the center of the housing 21. The heat sink 25 is disposed in contact with each other. In addition, three charging holes 60 are formed in each of the heat sinks 23 so as to be spaced apart from each other so that the heating element 27 is fitted into the charging holes.

In addition, the opposite side of the heat sink 23 side of the thermoelectric element 22 should dissipate heat according to the operating state of the thermoelectric element 22, and as the cooling means for the thermoelectric elements 22 and 12 A heat sink 25 having a plurality of heat dissipation ribs 26 is attached to the surface opposite to the heat sink 23 and attaches external air to the heat sink 25 from the cooling fan 29 installed on the upper surface of the housing 21. It is structured to blow air in.

Here, the air passing through the heat sink 25 is preferably not to interfere with the air discharged through the blower fan 28 through the heat sink 23. For this, the housing 21 as shown in FIG. The inside of the) divides the air flowing from the cooling fan 29 is divided into the heat sink (25) part is sent to the heat sink (23) is further provided with a partition plate (63).

In addition, a skirt-shaped induction plate 64 is formed to be inclined outward to surround the blower fan 28 at the lower end of the housing 21, so that the air passing through the heat sink 25 is discharged to the outside. It is not mixed with the wind discharged through the blowing fan (28).

Therefore, some of the external air introduced into the cooling fan 29 is sent to the heat sink 25 by the partition plate 63 and used as a cooling medium for the thermoelectric element 22, and then a blowing fan along the guide plate 64. (28) is discharged to the outside, the remaining outside air is led to the heat sink (23) by the partition plate 63 is heated through the heat sink fin 24 of the heat sink 23, and then blown by the memory module by the fan (28) Emitted towards (M).

A temperature sensor 71 is further installed on the blower fan 28 to measure the temperature of hot air applied to the inspection surface of the memory module M. The temperature sensor 71 is further described later with a control unit ( 70) to explain.

On the other hand, the control unit 70 is connected to the cold temperature system 20 via a cable to exchange electrical signals, a switch for applying a signal for operating the device installed inside the case 76 forming the appearance The controller 72 and the controller 72 for controlling the operation of each component by calculating the signal of the unit 73, the signal of the switch unit 73 and the output value of the temperature sensor 71, and the cold temperature system according to the output signal of the controller 72. And a power supply unit 74 for applying a necessary current to each component of 20, and a display unit 75 connected to the controller 72 to output necessary data.

Various switches of the switch unit 73 are installed on the front of the case 76 so that the user can conveniently operate, and the display unit 75 is also displayed through the LED window installed on the front so that the user of the switch It is desirable to be able to visually check the operation contents, the temperature of the air to be blown, and the like. There is no particular limitation on the position of the switch unit or the display unit and the installation form thereof.

Therefore, when the control unit 70 is set to a desired temperature condition through the operation of the switch unit 73, the controller 72 generates a main heat source by applying power to the heating element 27 through the power supply unit 74, and the thermoelectric element The current is applied to the 22 to adjust the heat or cold applied to the heat sink 23 from the thermoelectric element 22 to increase or decrease the temperature of the air passing through the heat sink 23. At this time, the temperature of the air is detected by the temperature sensor 71 is applied to the controller, the controller 72 controls the thermoelectric element 22 at the set temperature.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 9 and 10.

The main board B in which the memory module M for the test is installed is mounted on the work bench 11 of the base frame 10 via the bracket 12. In this process, the cradle 30 rotates the pivot member 74 with respect to the front and rear moving parts 32 so that the horizontal bar 36 is removed from the upper surface of the work bench 11 so that the horizontal bar 36 is installed when the main board B is installed. It is preferable not to interfere with.

When the main board (B) is mounted on the workbench 11 through the bracket, the cold temperature system 20 is installed in the mounting and the cold temperature system 20 is correctly positioned in the memory module (M).

That is, by installing the left and right moving member 37 on the upper end of the cold and warm system 20 and inserting the through hole formed in the left and right moving member 37 to the horizontal bar 36 of the cradle 30, the cold and warm system 20 Install on the cradle (30).

And the front end of the horizontal bar 36 is inserted into the support 45 and tightened with a screw so that the cold temperature system 20 is not separated out of the horizontal bar (36).

When the cold temperature system 20 is installed in the holder 30 as described above, each member of the holder 30 is moved to finally move the lower part of the cold temperature system 20 on the memory module M of the main mode installed in the work table 11. By positioning, the desired inspection can be carried out.

Looking at the process of moving the cold temperature system 20 is as follows.

First, the rotating member 33 which is rotated is rotated with respect to the front and rear moving member 32 to move the horizontal bar 36 to the upper surface of the work bench 11. Accordingly, the cold temperature system 20 installed on the horizontal bar 36 is positioned on the main board (B).

In this state, the front and rear movement member 32 is moved with respect to the guide rail 72, and the left and right movement member 37 is moved with respect to the horizontal bar 36 to move the memory module M of the main board B and the position thereof. Correctly position the cold temperature system 20.

When the position is matched by turning the handle 41 of the screw member 40 installed in each moving member to fix the front and rear movement member 32 and the left and right movement member 37.

Then, the elevating member 35 is moved up and down with respect to the vertical bar 34 so that the cold temperature system 20 is close to the upper portion of the memory module M. In addition, the locking member 42 installed on the vertical bar 34 is pulled up to the bottom of the elevating member 35 and the handle 44 is turned to tighten the screw member 43 to fix the position of the elevating member 35. .

Here, the elevating member 35 is supported by an elastic spring provided in the main body 51 of the elastic part, so that the working member can hardly feel the weight of the cold / warm system 20 in the process of moving the elevating member 35. do. The tension of the elastic spring of the elastic portion is adjusted through the adjustment knob 53 provided to the outside of the main body 51.

When the cold temperature system 20 is positioned on the memory module M as described above, power is applied to the control unit 70 and the target temperature of the inspection unit is set by operating a switch of the switch unit 73.

The set target temperature is visually displayed through the LED window of the display unit 75 installed on the front of the case 76 so that the temperature can be easily set.

For example, in the case where high temperature heat is applied to the memory module M, the user can press a switch to adjust a desired temperature at an interval of 1 degree, and when a numerical value appears in the LED window of the display unit 75 at a desired target temperature, the operation is performed. Press the start switch to operate the cold temperature system 20.

In this way, the operation signal of the switch is applied to the controller 72 and the controller 72 calculates the operation signal to control the power supply 74 to supply the current required through the power supply 74 to the heating element 27 and the thermoelectric element ( 22) and to the cold temperature system 20 including the cooling fan 29 and the blowing fan 28.

The heating element 27 receiving the current generates heat by converting electrical energy into thermal energy, and the thermoelectric element 22 generates heat through the heating surface.

The heating element 27 is installed in the heat dissipation plate 23, and the thermoelectric element 22 has a heat generating surface in contact with the heat dissipation plate 23, and the heat dissipation plate 23 is formed by heat generated from the heating element 27 and the thermoelectric element 22. ) Is heated.

Therefore, the outside air introduced into the housing 21 through the cooling fan 29 is heated while a part is introduced into the heat sink 23 by the partition plate 63 and passes between the heat radiating fins 24 of the heat sink 23. And is discharged to the lower memory module M through the blower fan 28.

Accordingly, hot air is discharged to the memory module M to heat the memory module M to a desired temperature.

Meanwhile, a part of the air introduced into the housing 21 through the cooling fan 29 is installed on the surface opposite to the heat sink 23 of the thermoelectric element 22 by the partition plate 63 inside the housing 21. It is introduced into the heat sink 25 and heat transfer is made with the heat sink 25.

The outside air passing through the heat sink 25 is discharged through the lower part of the housing 21. In the lower part of the housing 21, the guide plate 64 is installed to be inclined outward so as to be connected to the blower fan 28. Since the insulation is isolated, the discharge to the memory module M is blocked by the guide plate 64.

As such, the air discharged through the blower fan 28 and the air passing through the heat sink 25 are not interfered with each other, so that the high temperature wind discharged through the blower fan 28 is mixed with the air passed through the heat sink 25. It is possible to prevent the temperature from changing.

In this embodiment, the heating element 27 is used for the main heating of the outside air, the thermoelectric element 22 serves to finely control the temperature of the air.

The temperature of the air discharged through the blower fan 28 is detected by the temperature sensor 71 installed on the blower fan 28 side, and the detected signal is continuously applied to the controller 72, so that the controller 72 ) Controls the thermoelectric element 22 through the power supply 74 to maintain a predetermined temperature continuously.

As such, by applying hot air to the memory module M through the cold temperature system 20, the reliability of the memory module M may be inspected under various temperature conditions that are finely controlled.

As described above, it can be seen that the present invention provides a significantly innovative memory module temperature test apparatus. While exemplary embodiments of the present invention have been shown and described, various modifications and other embodiments may be made by those skilled in the art. Such modifications and other embodiments will be considered and included in the appended claims without departing from the true spirit and scope of the invention.

As described above, according to the inspection apparatus according to the present invention, the simple structure allows the inspection surface of the memory module to be easily lowered or raised to a desired temperature, thereby eliminating the inconvenience of moving the memory module to a high temperature room or a low temperature room. And the work time can be minimized.

In addition, precise temperature control is possible so that the temperature check of the memory module can be performed more precisely.

In addition, since only the desired inspection area can be locally cooled or heated, it is not necessary to have a low temperature room and a high temperature room at a high cost, thereby reducing the energy and inspection cost required for the inspection, thereby improving the cost of the memory module. It can be effective.

Claims (9)

A base frame on which at least one memory module is placed and inspected, a cold temperature system for imparting a temperature condition to the memory module, a cradle installed on the base frame and mounted with the cold temperature system to move the cold temperature system, the cold temperature A control unit electrically connected to the system to control the cold and hot system, The cold and hot system is a housing coupled to the cradle, a thermoelectric element installed inside the housing, a heat sink installed on one side of the thermoelectric element, a heating element installed on the heat sink to generate heat, the other side of the thermoelectric element And a heat sink installed in the housing, and a blowing fan installed in the housing to blow air into the memory module. The method of claim 1, The cradle is a guide rail installed on the base frame, the front and rear movement member placed on the rail and moved, the rotation member pivotally coupled to the front and rear movement member, vertically installed on the rotation member A memory module temperature test includes a bar, a lifting member moving up and down along the vertical bar, a horizontal bar installed horizontally on the lifting member, and a left and right moving member installed to be movable along the horizontal bar and coupled with the cold / warm system. Device. delete The method of claim 1, The cold temperature system is installed on one side of the housing memory module temperature inspection device including a cooling fan for introducing outside air into the housing. The method of claim 4, wherein The housing is provided with a partition plate for guiding the air flowing from the cooling fan toward the heat sink and the heat sink, respectively, and the lower end of the housing is a memory module temperature test device formed with a skirt-shaped induction plate to surround the blowing fan. The method of claim 1, The control unit includes a switch unit for applying an operation signal, a controller for controlling the operation of the cold / warm system by calculating an operation signal of the switch unit and a detection signal of a temperature sensor installed in the cold / warm system, and the heating element according to the output signal of the controller. And a power supply unit for applying a necessary current to the thermoelectric element, and a display unit connected to the controller to output necessary data. The method of claim 2, And a locking member which is inserted into the vertical bar and is lowered and positioned below the lifting member, and a screw member which is screwed to the locking member to tighten or loosen the locking member with respect to the vertical bar. The method according to claim 2 or 7, Memory module temperature test apparatus comprising an elastic spring installed between the bracket on the top of the vertical bar and the elevating member, the protective tube surrounding the spring. The method according to claim 2 or 7, The main body is installed on the bracket of the upper vertical bar, the elastic spring is installed inside the main body, the wire connected to the elastic spring and extending to the lower portion of the main body and connected to the elevating member and installed outside the main body to the elastic And an elastic portion for compensating the weight of the elevating member, including an adjustment knob for adjusting a tension of a spring.

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