CN1815210A - Heat-conductive characteristic detecting device and detecting method - Google Patents
Heat-conductive characteristic detecting device and detecting method Download PDFInfo
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- CN1815210A CN1815210A CN 200510033204 CN200510033204A CN1815210A CN 1815210 A CN1815210 A CN 1815210A CN 200510033204 CN200510033204 CN 200510033204 CN 200510033204 A CN200510033204 A CN 200510033204A CN 1815210 A CN1815210 A CN 1815210A
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Abstract
A heat conduction performance detection device includes one heating portion, one bearing portion, said bearing portion including one supporting block and first heat conduction block integrated moulded with said support block, said first heat conduction block further including one loaded plane, one buckle portion including heat conduction block, said second heat conduction block further including one buckle plane corresponded with above-mentioned loaded plane, and plurality of buckle, wherein said heating portion providing bearing portion one constant temperature, two ends of said buckle respectively fastening first heat conduction block and second heat conduction block, said second heat conduction block further including one temperature measuring unit for measuring second heat conduction block temperature.
Description
[technical field]
The present invention relates to a kind of heat-conductive characteristic detecting device and detection method, relate in particular to a kind of heat-conductive characteristic detecting device and detection method of thermal interface material.
[background technology]
Along with SIC (semiconductor integrated circuit) is constantly being improved, developed, the circuit degree of integration is more and more higher, and (Thermal Interface Material, application TIM) also more and more widely for thermal interface material.Yet the basic parameter of decision thermal interface material performance is a heat-conduction coefficient.In the performance history of thermal interface material, its heat-conduction coefficient of experiment measuring is an indispensable important step, and the thermal interface material of every kind of different formulations all can carry out the experiment measuring of thermal resistance value earlier after allotment is come out, determine whether it satisfies the demands.Therefore, the heat-conduction coefficient that how could measure thermal interface material has exactly played important effect to the development of thermal interface material.
Thermal interface material is when doing the heat-conduction coefficient measurement, and its heat-conduction coefficient is the function that heat passes distance, and its relational expression is as follows:
Wherein, K is a heat-conduction coefficient; Q is heat flux (Heat Flow Rate); A is the cross-sectional area of heat conduction direction; L is the heat conduction distance, i.e. the thickness of thermal interface material; T
1, T
2Be respectively the temperature of two interfaces of thermal interface material.
The heat-conduction coefficient test mode of traditional hot dielectric surface material is to adopt in an adiabatic environment, with two copper billets thermal interface material is clipped in wherein, after utilizing the pressurization platform to apply a fastening power, one end utilizes a thermoflux generator (Dummy Heater) to produce heat, and the other end is walked the torrid zone by cooling device.Treat to measure respectively after system's thermal equilibrium the temperature difference that obtains the thermal interface material two ends after the temperature on the copper billet, calculate the heat-conduction coefficient that can draw this thermal interface material by heat conducting relational expression then.
United States Patent (USP) the 6th, 331 discloses a kind of film heat-conduction coefficient measurement mechanism and method thereof No. 075, and it adopts the mode of a kind of simulation calculation device internal heat dielectric surface material practical application to measure.And a plurality of measuring temps hole by being built in thermal interface material two ends heat-conducting block comes the temperature difference at accurate MEASUREMENTS OF THIN two ends, and then obtains accurate thermal interface material heat-conduction coefficient value.Yet though this heat-conduction coefficient measurement mechanism and method can be by measuring comparatively accurate heat-conduction coefficient value, the measurement step complexity is installed and is difficult for, and must set up a plurality of measuring temps hole for obtaining thermal interface material two ends precise dose difference.And, measure and must wait until after total system reaches thermal equilibrium and can carry out that measurement speed is slower, is unfavorable for doing the rapid screening of a large amount of thermal interface material samples.
Therefore, provide a kind of installation fast, the measurement time is short, the heat-conductive characteristic detecting device of rapid screening that is fit to do a large amount of samples is very necessary.
[summary of the invention]
Below, will with some embodiment illustrate a kind of installation fast, the measurement time is short, is fit to do the heat-conductive characteristic detecting device of the rapid screening of a large amount of samples.
And a kind of heat-conductive characteristic detection method is described by these embodiment.
For realizing foregoing, a kind of heat-conductive characteristic detecting device is provided, it comprises: a heating part; One supporting part, this supporting part comprise that a back-up block reaches and integrated first heat-conducting block of this back-up block, and this first heat-conducting block further comprises a load plane; One buckling parts, this buckling parts comprise one second heat-conducting block, and this second heat-conducting block comprises that further a fastening plane is corresponding with above-mentioned load plane; And a plurality of fasteners, wherein this heating part provides supporting part one stationary temperature, and these fastener two ends fasten first heat-conducting block and second heat-conducting block respectively, and this second heat-conducting block comprises that further a temperature measuring device is used to measure the temperature of second heat-conducting block.
And, a kind of heat-conductive characteristic detection method is provided, it may further comprise the steps: a supporting part is provided, and this supporting part comprises a load plane; The first thermal interface material sample to be measured is set in the load plane of supporting part; One buckling parts is provided, and this buckling parts comprises that one fastens the plane; This first thermal interface material is fastened between supporting part and the buckling parts, makes these first thermal interface material, two surfaces contact with load plane and fastening plane respectively; Tw heats supporting part with steady temperature; Measure the temperature of buckling parts, and the following buckling parts temperature of record rises to the time of this steady temperature Tw.
Compared with prior art, the heat-conductive characteristic detecting device of the technical program and detection method have following advantage: one, the heat-conductive characteristic detecting device of the technical program adopts simple and easy fastener that one fastening power is provided and adopts simple and easy heating arrangement tank that one constant temperature thermal source is provided, simple in structure, install fast, the measurement time also shortens dramatically, and is fit to do the rapid screening of a large amount of samples; Its two, the heat-conductive characteristic detecting device of the technical program requirement when measuring is surveyed a temperature spot, and notes the time dependent curve of temperature and get final product; Its three, the heat-conductive characteristic detecting device of the technical program uses assembly few, heating source adopts Water Tank with Temp.-controlled or other device, obtains easily, cost is low.
[description of drawings]
Fig. 1 is the decomposing schematic representation of the first embodiment heat-conductive characteristic detecting device.
Fig. 2 is the application synoptic diagram of the first embodiment heat-conductive characteristic detecting device.
Fig. 3 is the temperature-time curve synoptic diagram that the first embodiment heat-conductive characteristic detecting device is measured different thermal interface material samples.
[embodiment]
The present invention is described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Fig. 1 is the decomposing schematic representation of the technical program first embodiment heat-conductive characteristic detecting device.The technical program provides a kind of heat-conductive characteristic detecting device 10, and it comprises a supporting part 12, one buckling parts 13 and fastener 15,15 '.Supporting part 12 comprises that one has back-up block 121 and and these back-up block 121 integrated first heat-conducting blocks 122 with second diameter of first diameter.This back-up block 121 is a concentric right cylinder with this first heat-conducting block 122, and material is all metallic copper.This first diameter is less than second diameter.First heat-conducting block 122 further comprises a load plane 123, and this load plane 123 has low surface roughness, is used to carry thermal interface material 17 to be measured.Buckling parts 13 comprises that one has second heat-conducting block 131 of second diameter, this second heat-conducting block 131 is a right cylinder, material is a metallic copper, this second heat-conducting block 131 comprises that further a smooth fastening plane 133 is corresponding with above-mentioned load plane 123, and one measuring temp hole 132 be used to measure the temperature variation of second heat-conducting block 131, this fastening plane 133 has identical cross-sectional area with load plane 123, and this measuring temp hole 132 is positioned at the center of top position of second heat-conducting block 131.Fastener 15,15 ' is made of " ㄩ " shape adiabatic elasticity material, these fastener 15,15 ' two ends fasten first heat-conducting block 122 and second heat-conducting block 131 respectively, in order to a constant fastening power to be provided, make thermal interface material 17 can closely be fastened between first heat-conducting block 122 and second heat-conducting block 131.
See also Fig. 2, the heat-conductive characteristic detecting device 10 of the foregoing description is when measuring, at first fastener 15,15 ' is fastened first heat-conducting block 122 of supporting part 12 and second heat-conducting block 131 of buckling parts 13 respectively, make thermal interface material 17 can closely be fastened between first heat-conducting block 122 and second heat-conducting block 131.Back-up block 121 with supporting part 12 is immersed in the tank 11 that fills thermostatted water 11 ' then, and the water 11 ' in the tank 11 can keep having certain higher temperature by heating or alternate manner control.Measure the temperature of second heat-conducting block 131 by the measuring temp hole 132 that is positioned at second heat-conducting block 131 at last, and note the time that water temperature spent that second heat-conducting block 131 is raise by initial temperature.
The method that the heat-conductive characteristic detecting device of use the technical program detects the thermal interface material heat-conductive characteristic may further comprise the steps:
Step 1 provides a supporting part, and this supporting part comprises a load plane, and this supporting part is made of highly heat-conductive material, and present embodiment adopts metallic copper, and this load plane has lower surfaceness.
Step 2 is provided with thermal interface material sample to be measured in the load plane of supporting part, and this thermal interface material sample can evenly be arranged on the load plane by coating or other method.
Step 3 provides a buckling parts, and this buckling parts comprises that one fastens a plane and a measuring temp hole, and this buckling parts is made of highly heat-conductive material, and present embodiment adopts metallic copper, and this fastening plane has lower surfaceness.
Step 4 provides a plurality of fasteners, and thermal interface material is fastened between supporting part and the buckling parts with certain fastening power, makes thermal interface material two surfaces contact with load plane and fastening plane respectively.
Step 5 provides a heating arrangement, and this heating arrangement provides a steady temperature Tw in supporting part.The heating arrangement employing one of the technical program fills the tank of water, and the temperature of water can be maintained at constant temperature Tw by heating or alternate manner in the tank.This supporting part is partially submerged in the water, and heat transferred to thermal interface material, and is passed to buckling parts by thermal interface material.
Step 6 is measured the temperature of buckling parts by temperature measuring equipment, and notes down the time that following buckling parts temperature rises to Tw, and present embodiment adopts thermometer to measure by the measuring temp hole that is positioned at buckling parts.
When application the technical program heat-conductive characteristic detecting device screens a large amount of thermal interface material samples, adopt above-mentioned steps to measure the first thermal interface material sample earlier and rise to the required time of steady temperature Tw, repeating abovementioned steps then measures the second thermal interface material sample and rises to the required time of this steady temperature Tw, and relatively this first thermal interface material and this second thermal interface material rise to the required time of this steady temperature Tw, because the technical program heat-conductive characteristic detecting device installs simple and easy and measurement speed is fast, therefore can screen the thermal interface material sample rapidly.
Fig. 3 is the temperature-time curve synoptic diagram that the heat-conductive characteristic detecting device of the technical program is measured different thermal interface material samples.The heat-conductive characteristic detecting device of the technical program measures at different thermal interface material sample c1, c2 and c3 respectively, and notes its temperature-time curve.As seen from Figure 3, the temperature of thermal interface material c1 rises to water temperature T w and takes time minimumly, thereby it has best relatively heat-conductive characteristic, the thermal resistance value minimum.Thermal interface material c3 is the thermal resistance value maximum then, and heat-conductive characteristic is the poorest.
Those skilled in the art should understand that the supporting part 12 and the buckling parts 13 of the technical program also can adopt other high thermal conductance metal material, as metallic aluminium.This supporting part 12 also is not limited only to right cylinder with buckling parts 13, also can be rectangular parallelepiped or other shape.In addition, the technical program also can adopt infrared ray heating or alternate manner to substitute and provide a steady temperature by thermostatted water 11 ' in the tank 11, and can remove the setting of the support portion 121 of supporting part 12, only need control can provide a stationary temperature to act on first heat-conducting block 122 and get final product.
Compared with prior art, the heat-conductive characteristic detecting device of the technical program has the following advantages: one, the heat-conductive characteristic detecting device of the technical program adopts simple and easy fastener that one fastening power is provided and adopts simple and easy heating arrangement tank that one constant temperature thermal source is provided, simple in structure, install fast, the measurement time also shortens dramatically, and is fit to do the rapid screening of a large amount of samples; Its two, the heat-conductive characteristic detecting device of the technical program requirement when measuring is surveyed a temperature spot, and notes the time dependent curve of temperature and get final product; Its three, the heat-conductive characteristic detecting device of the technical program uses assembly few, heating source adopts Water Tank with Temp.-controlled or other device, obtains easily, cost is low.
Claims (13)
1. heat-conductive characteristic detecting device, it comprises: a heating part; One supporting part, this supporting part comprise that a back-up block reaches and integrated first heat-conducting block of this back-up block, and this first heat-conducting block further comprises a load plane; One buckling parts, this buckling parts comprise one second heat-conducting block, and this second heat-conducting block comprises that further a fastening plane is corresponding with above-mentioned load plane; And a plurality of fasteners, it is characterized in that this heating part provides supporting part one stationary temperature, these fastener two ends fasten first heat-conducting block and second heat-conducting block respectively, and this second heat-conducting block comprises that further a temperature measuring device is used to measure the temperature of second heat-conducting block.
2. heat-conductive characteristic detecting device as claimed in claim 1 is characterized in that this first heat-conducting block has identical cross-sectional area with second heat-conducting block.
3. heat-conductive characteristic detecting device as claimed in claim 2 is characterized in that the cross-sectional area of the cross-sectional area of this first heat-conducting block and second heat-conducting block greater than this back-up block.
4. heat-conductive characteristic detecting device as claimed in claim 1 is characterized in that this supporting part and this buckling parts material comprise the high thermal conductivity coefficient material.
5. heat-conductive characteristic detecting device as claimed in claim 4 is characterized in that this high thermal conductivity coefficient material comprises metallic copper.
6. heat-conductive characteristic detecting device as claimed in claim 1 is characterized in that this fastener is " ㄩ " shape.
7. heat-conductive characteristic detecting device as claimed in claim 6 is characterized in that this fastener material comprises the adiabatic elasticity material.
8. heat-conductive characteristic detecting device as claimed in claim 1 is characterized in that this heating part comprises a tank, and this tank fills the water of tool uniform temperature, and this back-up block is immersed in the tank.
9. heat-conductive characteristic detecting device as claimed in claim 8 is characterized in that this second heat-conducting block comprises a temperature survey hole.
10. heat-conductive characteristic detection method, it may further comprise the steps:
One supporting part is provided, and this supporting part comprises a load plane;
The first thermal interface material sample to be measured is set in the load plane of supporting part;
One buckling parts is provided, and this buckling parts comprises that one fastens the plane;
This first thermal interface material is fastened between supporting part and the buckling parts, makes these first thermal interface material, two surfaces contact with load plane and fastening plane respectively;
Tw heats supporting part with steady temperature;
Measure the temperature of buckling parts, and the following buckling parts temperature of record rises to the time of this steady temperature Tw.
11. heat-conductive characteristic detection method as claimed in claim 10 is characterized in that by a tank that fills tool constant temperature Tw water supporting part being heated.
12. heat-conductive characteristic detection method as claimed in claim 11 is characterized in that this supporting part is immersed in the water, and heat transferred to thermal interface material, and is passed to buckling parts by thermal interface material.
13. heat-conductive characteristic detection method as claimed in claim 10, it is characterized in that further comprising that the repetition abovementioned steps measures the second thermal interface material sample and rise to the required time of this steady temperature Tw, and relatively this first thermal interface material and this second thermal interface material rise to the required time of this steady temperature Tw.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100332046A CN100437098C (en) | 2005-02-04 | 2005-02-04 | Heat-conductive characteristic detecting device and detecting method |
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|---|---|---|---|
| CNB2005100332046A CN100437098C (en) | 2005-02-04 | 2005-02-04 | Heat-conductive characteristic detecting device and detecting method |
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| CN1815210A true CN1815210A (en) | 2006-08-09 |
| CN100437098C CN100437098C (en) | 2008-11-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621179A (en) * | 2012-03-20 | 2012-08-01 | 北京航空航天大学 | Device and method for measuring heat conductivity coefficient of barred body material |
| CN105241921A (en) * | 2015-11-07 | 2016-01-13 | 北京工业大学 | Method and device for nondestructive measurement of heat resistance of travelling wave tube |
| CN111982962A (en) * | 2020-08-25 | 2020-11-24 | 苏州鸿凌达电子科技有限公司 | Heat conduction effect detection device of heat conduction material |
| CN113196044A (en) * | 2018-12-28 | 2021-07-30 | Tusas-土耳其航空航天工业公司 | Measuring mechanism |
| CN113196044B (en) * | 2018-12-28 | 2024-05-28 | Tusas-土耳其航空航天工业公司 | Measuring mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687850A (en) * | 1979-12-18 | 1981-07-16 | Toshiba Corp | Thermal conductivity meter |
| JP2787647B2 (en) * | 1993-09-14 | 1998-08-20 | 東海ゴム工業株式会社 | Method and apparatus for measuring thermal conductivity |
| CN1056694C (en) * | 1993-11-19 | 2000-09-20 | 徐存海 | Method for measuring thermal conductivity coefficient of material and its apparatus |
| US6331075B1 (en) * | 1998-05-01 | 2001-12-18 | Administrator, National Aeronautics And Space Administration | Device and method for measuring thermal conductivity of thin films |
| JP2001021512A (en) * | 1999-07-08 | 2001-01-26 | Fuji Electric Co Ltd | Thermal conductivity measuring device |
| JP2004061302A (en) * | 2002-07-29 | 2004-02-26 | Gifu Univ | Thermal conductivity measuring apparatus and heat characteristic measuring apparatus used for the same |
-
2005
- 2005-02-04 CN CNB2005100332046A patent/CN100437098C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621179A (en) * | 2012-03-20 | 2012-08-01 | 北京航空航天大学 | Device and method for measuring heat conductivity coefficient of barred body material |
| CN105241921A (en) * | 2015-11-07 | 2016-01-13 | 北京工业大学 | Method and device for nondestructive measurement of heat resistance of travelling wave tube |
| CN105241921B (en) * | 2015-11-07 | 2018-09-04 | 北京工业大学 | A kind of method and device of nondestructive measurement travelling-wave tubes thermal resistance |
| CN113196044A (en) * | 2018-12-28 | 2021-07-30 | Tusas-土耳其航空航天工业公司 | Measuring mechanism |
| CN113196044B (en) * | 2018-12-28 | 2024-05-28 | Tusas-土耳其航空航天工业公司 | Measuring mechanism |
| CN111982962A (en) * | 2020-08-25 | 2020-11-24 | 苏州鸿凌达电子科技有限公司 | Heat conduction effect detection device of heat conduction material |
| CN111982962B (en) * | 2020-08-25 | 2021-03-23 | 苏州鸿凌达电子科技有限公司 | Heat conduction effect detection device of heat conduction material |
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| CN100437098C (en) | 2008-11-26 |
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