CN211318592U - Resistance detection device of conductive adhesive - Google Patents
Resistance detection device of conductive adhesive Download PDFInfo
- Publication number
- CN211318592U CN211318592U CN201922012249.5U CN201922012249U CN211318592U CN 211318592 U CN211318592 U CN 211318592U CN 201922012249 U CN201922012249 U CN 201922012249U CN 211318592 U CN211318592 U CN 211318592U
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- Prior art keywords
- conductive adhesive
- resistance
- base material
- substrate
- limiting
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- 239000000853 adhesive Substances 0.000 title claims abstract description 96
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 96
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 97
- 239000000758 substrate Substances 0.000 claims abstract description 95
- 239000000523 sample Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 abstract description 44
- 229920005989 resin Polymers 0.000 abstract description 44
- 238000012360 testing method Methods 0.000 abstract description 15
- 238000012827 research and development Methods 0.000 abstract description 5
- 239000003292 glue Substances 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005464 sample preparation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to a conducting resin performance detection technical field discloses a resistance detection device of conducting resin, include: a first substrate; a second base material which is arranged on the first base material in a laminated manner; the conductive adhesive limiting piece is positioned between the first base material and the second base material, and a hollow limiting groove is formed in the conductive adhesive limiting piece; the resistance detection assembly is connected with the two opposite sides of the first base material and the second base material and used for detecting the total resistance of the first base material, the second base material and the conductive adhesive as a whole. The utility model discloses a resistance detection device of conducting resin, through detecting out first substrate, second substrate and conducting resin total resistance when as a whole, and then can calculate the contact resistance who reachs conducting resin and first substrate, second substrate, the instrument and the material that use are simple, and system appearance is efficient, and the test cost is low, is suitable for the contact resistance of roughly testing conducting resin and substrate at the research and development initial stage.
Description
Technical Field
The utility model relates to a conducting resin performance detection technical field, in particular to conducting resin's resistance detection device.
Background
Currently, there is no clear standard and corresponding testing method internationally regarding the testing of the contact resistance between the conductive paste and the contact substrate. Although some testing instruments have been developed, chinese patent No. CN206378533U discloses a surface resistance testing device for FIP conductive glue, which includes a gold-plated electrode i and a gold-plated electrode ii, wherein the upper ends of the gold-plated electrode i and the gold-plated electrode ii are respectively connected to two ends of an ohmmeter by circuits, the gold-plated electrode i and the gold-plated electrode ii are fixed in an insulating block, the lower ends of the gold-plated electrode i and the gold-plated electrode ii are connected to a FIP conductive adhesive tape on a metal surface, a detachable seed block is arranged on the upper end of the insulating block, and the side end of the insulating block is connected to a support through a hinge. This patent application can test the surface resistance of FIP conducting strip and other elastomer conducting materials after the solidification.
However, the equipment of the existing measuring and calculating instrument is generally very expensive, the sample preparation method is also very complex, and the cost is also high. Too complicated and expensive tests improve the research and development cost of the conductive adhesive, and greatly prolong the research and development period of the conductive adhesive.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem and propose, aim at provides a resistance detection device of conducting resin. The utility model discloses a resistance detection device of conducting resin, squeeze into the conducting resin spacing piece's spacing inslot through the setting with the conducting resin, then utilize first substrate in the both sides of conducting resin, the second substrate covers, utilize resistance detection subassembly to connect first substrate and second substrate respectively, thereby can detect out first substrate, total resistance when second substrate and conducting resin are as whole, and then can calculate reach conducting resin and first substrate, the contact resistance of second substrate, the instrument and the material that use are simple, system appearance is efficient, and the test cost is low, be suitable for the contact resistance of roughly testing conducting resin and substrate at the research and development initial stage.
Particularly, the utility model provides a resistance detection device of conducting resin, include:
a first substrate;
a second base material stacked on the first base material;
the conductive adhesive limiting piece is positioned between the first base material and the second base material, and a hollow limiting groove is formed in the conductive adhesive limiting piece;
and the resistance detection assembly is connected with the two opposite sides of the first substrate and the second substrate and used for detecting the total resistance of the first substrate, the second substrate and the conductive adhesive as a whole.
Compared with the prior art, the utility model provides a resistance detection device of conducting resin, squeeze into the conducting resin spacing inslot of piece, then utilize first substrate in the both sides of conducting resin, the second substrate covers, utilize resistance detection subassembly to connect first substrate and second substrate respectively, thereby can detect out first substrate, total resistance when second substrate and conducting resin are as whole, then through to first substrate, the calculation of the resistivity of second substrate and conducting resin, conducting resin and first substrate, the area of contact's of second substrate measurement and calculation, thereby can calculate and draw conducting resin and first substrate, the contact resistance of second substrate. The utility model discloses the instrument and the material that use are simple, and system appearance is efficient, and the test cost is low, are suitable for the contact resistance of test conducting resin and substrate roughly at the research and development initial stage.
Preferably, the resistance detection unit includes:
a resistance tester;
and the two resistance probes are provided, one end of each resistance probe is connected with the resistance tester, and the other end of each resistance probe is connected with the first base material or the second base material.
According to this preferred scheme, utilize resistance tester and resistance probe to measure total resistance when first substrate, second substrate and conducting resin are as whole, have that equipment is simple, measure advantages such as quick accurate.
Further, preferably, the first substrate, the second substrate and the conductive adhesive limiting sheet have the same peripheral contour.
According to the preferred scheme, the conductive adhesive limiting sheet can be arranged when the conductive adhesive limiting sheet covers the first base material and the second base material covers the conductive adhesive limiting sheet, so that the outlines of the conductive adhesive limiting sheet, the first base material and the second base material are completely consistent, and the first base material, the second base material and the conductive adhesive filled in the conductive adhesive limiting sheet can be conveniently detected.
In addition, as preferred, the conducting resin spacing piece is arranged in a square plate shape, the side length of the conducting resin spacing piece is 10-30 mm, and the thickness of the conducting resin spacing piece is 0.5-2 mm.
Further, preferably, the side length of the conductive adhesive limiting sheet is 20mm, and the thickness of the conductive adhesive limiting sheet is 1 mm.
According to the preferred embodiment, the contact areas and thicknesses of the conductive adhesive in the limiting grooves of the conductive adhesive limiting piece with the first base material and the second base material are all started at 1, so that when the contact resistance is calculated by using the measured total resistance, the calculation error can be reduced, and the accuracy of the calculated contact resistance can be improved.
Preferably, the notch of the stopper groove has a size of 100mm 2.
According to the preferred embodiment, regardless of the shape of the limiting groove, as long as the size of the notch of the limiting groove is 100mm2, the contact area between the conductive adhesive in the limiting groove and the first substrate and the contact area between the conductive adhesive and the second substrate are ensured to start at 1, and when the contact resistance is calculated by using the measured total resistance, the calculation error can be reduced, so that the accuracy of the calculated contact resistance is improved.
In addition, preferably, the limiting groove is a square groove, and the side length of the limiting groove is 10 mm.
According to the preferred scheme, the square limiting groove is simple in structure and convenient to manufacture, the contact area between the conductive adhesive in the limiting groove and the first substrate and the contact area between the conductive adhesive and the second substrate are started by 1, and when the contact resistance is calculated by using the measured total resistance, the calculation error can be reduced, so that the accuracy of the calculated contact resistance is improved.
Preferably, the stopper groove is a circular groove, and a radius of the stopper groove is 10 mm.
According to the preferred scheme, the round limiting groove is simple in structure and convenient to manufacture.
In addition, preferably, the conductive adhesive limiting sheet is an integrally formed polytetrafluoroethylene sheet, and the first base material and the second base material are both in a sheet plate shape made of metal.
According to the preferred scheme, the conductive adhesive limiting sheet is not conductive, so that when the resistance is measured, the measured result is not influenced by the conductive adhesive limiting sheet. The metal first base material and the metal second base material have conductive capability, so that resistance measurement can be carried out together with the conductive adhesive as a whole, the metal first base material and the metal second base material are low in resistance, and the resistance of the first base material and the resistance of the second base material can be ignored under the condition that the requirement on resistance measurement is not high, so that the calculation of the contact resistance of the conductive adhesive and the first base material and the contact resistance of the conductive adhesive and the second base material are simplified.
Drawings
Fig. 1 is a schematic view of a first substrate, a second substrate and a conductive adhesive limiting sheet according to a first embodiment of the present invention;
fig. 2 is an overall schematic view of a resistance detection device for conductive paste according to a first embodiment of the present invention;
fig. 3 is a cross-sectional view of the first base material, the second base material, and the conductive adhesive spacing piece as a whole according to the first embodiment of the present invention;
fig. 4 is a schematic structural view of a conductive adhesive limiting piece according to a second embodiment of the present invention.
Description of reference numerals:
1. a first substrate; 2. a second substrate; 3. a conductive adhesive limiting sheet; 4. a limiting groove; 5. a conductive adhesive; 6. a resistance detection component; 7. a resistance tester; 8. and a resistance probe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. The structure and the like of the resistance detection device of the conductive paste are schematically simplified and shown in the drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Implementation mode one
The utility model discloses a first embodiment provides a resistance detection device of conducting resin, see that fig. 1 and fig. 2 are shown, including first substrate 1, second substrate 2 and be located the spacing piece 3 of conducting resin between first substrate 1 and the second substrate 2, set up the spacing groove 4 of fretwork on spacing piece 3 of conducting resin, conducting resin 5 (see fig. 3) pours into spacing groove 4 in, and first substrate 1, spacing piece 3 of conducting resin and the range upon range of setting of second substrate 2. The resistance detection device of conducting resin still includes resistance detection subassembly 6, and resistance detection subassembly 6 connects the relative both sides of first substrate 1 and second substrate 2, detects the total resistance of first substrate 1, second substrate 2 and conducting resin 5 when as a whole.
Compared with the prior art, in the resistance detection device for conductive adhesive provided in the first embodiment, the conductive adhesive 5 is driven into the limiting groove 4 of the conductive adhesive limiting sheet 3, then the first base material 1 and the second base material 2 are covered on two sides of the conductive adhesive 5, and the resistance detection assembly 6 is used to connect the first base material 1 and the second base material 2 respectively, so that the total resistance of the first base material 1, the second base material 2 and the conductive adhesive 5 as a whole can be detected, and then the contact resistance of the conductive adhesive 5 and the first base material 1 can be calculated by calculating the resistivity of the first base material 1, the second base material 2 and the conductive adhesive 5 and measuring and calculating the contact area of the conductive adhesive 5 and the first base material 1. The first embodiment is suitable for roughly testing the contact resistance between the conductive adhesive 5 and the first and second substrates 1 and 2 at the initial stage of development, and has the advantages of simple tool and material, high sample preparation efficiency and low test cost.
Specifically, when using, place first substrate 1 on horizontal desktop, set up spacing piece 3 range upon range of on first substrate 1 of conducting resin, drive into conducting resin 5 in spacing groove 4 to spacing piece 3 of conducting resin, for guaranteeing that conducting resin 5 fully fills in spacing groove 4 and well contact with first substrate 1, second substrate 2, drive into conducting resin 5 excessively, then will spill over to strike off totally with the scraper to conducting resin 5 outside spacing groove 4. Then, the second substrate 2 is stacked on the conductive adhesive limiting sheet 3, a heavy object is pressed on the second substrate 2, and the sample preparation is successful after the conductive adhesive 5 is cured and formed. Then, the first substrate 1, the conductive adhesive limiting sheet 3 filled with the conductive adhesive 5, and the second substrate 2 after curing and molding are taken as a whole, and the resistance detection assembly 6 is used for measuring the whole resistance rcotal.
Integral resistance RGeneral assemblyComprises self-resistance of a first substrate 1 and a second substrate 2, two contact resistances of a conductive adhesive 5 and the first substrate 1 and the second substrate 2, and resistance R of the conductive adhesive 5Glue. In the present embodiment, since the first base material 1 and the second base material 2 are made of the same material, the self-resistance of the first base material 1 and the self-resistance of the second base material 2 are RBase materialThe contact resistance of the conductive adhesive 5 and the first base material 1 and the second base material 2 is RContact withI.e. RGeneral assembly=2RBase material+2RContact with+RGlue. The formula for the calculation of resistivity is R = ρ L/S, so R = ρ L/SGeneral assembly=2RBase material+2RContact with+RGlue=2ρBase material*hBase material/SBase material+2RContact with+ρGlue*hGlue/SGlue,RContact with=（RGeneral assembly-2ρBase material*hBase material/SBase material-ρGlue*hGlue/SGlue)/2. Where ρ isBase materialIs the resistivity of the substrate, hBase materialIs the thickness of the substrate, SBase materialIs the area of the substrate, pGlueIs the resistivity of the conductive paste 5, hGlueThe thickness S of the conductive adhesive 5 after curingGlueThe area of the conductive paste 5 after the curing molding. Wherein the resistivity rho of the first base material 1, the second base material 2 and the conductive adhesive 5Base materialAnd ρGlueThe thickness of the first substrate 1, the second substrate 2 and the cured conductive adhesive 5 can be measured through testing.
The conductive adhesive limiting sheet 3 is an integrally formed polytetrafluoroethylene sheet, and the conductive adhesive limiting sheet 3 is not conductive, so that when resistance is measured, the measured result is not influenced by the conductive adhesive limiting sheet 3. Of course, the conductive adhesive limiting sheet 3 may be a non-conductive sheet made of other materials as long as the non-conductivity can be realized and the demolding of the conductive adhesive 5 is facilitated.
The first base material 1 and the second base material 2 are each a one-piece plate-like member made of metal. The first base material 1 and the second base material 2 made of metal have conductivity, so that resistance measurement can be performed together with the conductive adhesive 5 as a whole, and the resistance of the first base material 1 and the second base material 2 made of metal is low, so that the resistance of the first base material 1 and the second base material 2 can be ignored under the condition that the requirement on resistance measurement is not high, and the calculation of the contact resistance between the conductive adhesive 5 and the first base material 1 and the second base material 2 can be simplified.
Assuming that the first base material 1 and the second base material 2 are made of copper having low resistivity, and the base material ρ is low, the resistance R of the base materials is set to be lowBase materialNeglecting, the contact resistance R of the conductive adhesive 5Contact with=（RGeneral assembly-2*0-ρGlue*hGlue/SGlue）/2=（RGeneral assembly-ρGlue*hGlue/SGlue）/2。
The resistance detection assembly 6 comprises a resistance tester 7 and two resistance probes 8, wherein one ends of the two resistance probes 8 are connected with the resistance tester 7, and the other ends of the two resistance probes are connected with the first substrate 1 or the second substrate 2. Utilize resistance tester 7 and resistance probe 8 to measure total resistance when first substrate 1, second substrate 2 and conducting resin 5 are as whole, have that equipment is simple, measure advantages such as quick accurate.
The peripheral outline of the first substrate 1, the second substrate 2 and the conductive adhesive limiting sheet 3 is consistent, so that the three can be arranged when the conductive adhesive limiting sheet 3 covers the first substrate 1 and the second substrate 2 covers the conductive adhesive limiting sheet 3, the outlines of the three are completely consistent, and the first substrate 1, the second substrate 2 and the conductive adhesive 5 filled in the conductive adhesive limiting sheet 3 are conveniently detected.
The conductive adhesive limiting sheet 3 is arranged in a square plate shape, the side length of the conductive adhesive limiting sheet 3 is 10-30 mm, and the thickness of the conductive adhesive limiting sheet is 0.5-2 mm. The conductive adhesive limiting sheet 3 is simple in structure and convenient to produce and manufacture. Preferably, the side length of the conductive adhesive limiting sheet 3 is 20mm, and the thickness is 1 mm. With the arrangement, the contact area and the thickness of the conductive adhesive 5 in the limiting groove 4 of the conductive adhesive limiting sheet 3 with the first substrate 1 and the second substrate 2 are both 1, so that when the contact resistance is calculated by using the measured total resistance, the calculation error can be reduced, and the accuracy of the calculated contact resistance is improved.
For example, the contact resistance of the conductive paste 5 can be simplified to RContact with=（RGeneral assembly-ρGlue*1mm*hGlue/SGlue）/2=（RGeneral assembly-100ρGlue*hGlue/SGlue）/2。
In particular, the notch of the limiting groove 4 is 100mm in size2Regardless of the shape of the limiting groove 4, the size of the notch of the limiting groove 4 is 100mm2The contact area of the conductive adhesive 5 in the limiting groove 4, the contact area of the first base material 1 and the contact area of the second base material 2 are ensured to start with the contact area 1, and when the contact resistance is calculated by using the measured total resistance, calculation errors can be reduced, so that the accuracy of the calculated contact resistance is improved.
For example, the contact resistance of the conductive paste 5 can be simplified to RContact with=（RGeneral assembly-100ρGlue*hGlue/100mm2）/2=1000*（RGeneral assembly-104*ρGlue*hGlue）。
Particularly, the limiting groove 4 is arranged in a square groove, and the side length of the limiting groove 4 is 10 mm. The square limiting groove 4 is simple in structure and convenient to manufacture, the contact area of the conductive adhesive 5 in the limiting groove 4 and the contact area of the first substrate 1 and the second substrate 2 are beginning 1, and when the total resistance is measured to calculate the contact resistance, calculation errors can be reduced, so that the accuracy of the calculated contact resistance is improved.
Second embodiment
The utility model discloses a second embodiment provides a resistance detection device of conducting resin, and the second embodiment is the further improvement to first embodiment, and the part that does not do the special explanation includes reference numeral and word description, all is the same with first embodiment, no longer explains here.
The main improvement of the second embodiment over the first embodiment lies in that, in the second embodiment of the present invention, as seen from fig. 4, the limiting groove 4 is a circular groove, the radius of the limiting groove 4 is 10mm, and the circular limiting groove 4 has a simple structure and is convenient to manufacture.
Of course, the area of the limiting groove 4 can be set to be 100mm2In accordance with the effect of the first embodiment, the contact areas of the conductive paste 5 in the stopper groove 4 with the first base material 1 and the second base material 2 begin with 1, and when the contact resistance is calculated using the measured total resistance, the calculation error can be reduced, thereby improving the accuracy of the calculated contact resistance.
It will be appreciated by those of ordinary skill in the art that in the embodiments described above, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be basically implemented without these technical details and various changes and modifications based on the above-described embodiments. Accordingly, in actual practice, various changes in form and detail may be made to the above-described embodiments without departing from the spirit and scope of the invention.
Claims (9)
1. A resistance detection device of conductive adhesive, comprising:
a first substrate;
a second base material stacked on the first base material;
the conductive adhesive limiting piece is positioned between the first base material and the second base material, and a hollow limiting groove is formed in the conductive adhesive limiting piece;
and the resistance detection assembly is connected with the two opposite sides of the first substrate and the second substrate and used for detecting the total resistance of the first substrate, the second substrate and the conductive adhesive as a whole.
2. The device for detecting the resistance of a conductive adhesive according to claim 1, wherein the resistance detecting unit comprises:
a resistance tester;
and the two resistance probes are provided, one end of each resistance probe is connected with the resistance tester, and the other end of each resistance probe is connected with the first base material or the second base material.
3. The device for detecting the resistance of the conductive adhesive according to claim 1 or 2, wherein the first substrate, the second substrate and the conductive adhesive limiting sheet have the same peripheral contour.
4. The device for detecting the resistance of the conductive adhesive according to claim 3, wherein the conductive adhesive limiting piece is arranged in a square plate shape, the side length of the conductive adhesive limiting piece is 10-30 mm, and the thickness of the conductive adhesive limiting piece is 0.5-2 mm.
5. The device for detecting the resistance of the conductive adhesive according to claim 4, wherein the side length of the conductive adhesive limiting sheet is 20mm, and the thickness of the conductive adhesive limiting sheet is 1 mm.
6. The device for detecting the resistance of conductive adhesive according to any one of claims 1 to 2 and 4 to 5, wherein the size of the notch of the limiting groove is 100mm 2.
7. The device for detecting the resistance of conductive adhesive according to claim 6, wherein the limiting groove is a square groove, and the side length of the limiting groove is 10 mm.
8. The device for detecting the resistance of conductive adhesive according to any one of claims 1-2 and 4-5, wherein the limiting groove is a circular groove, and the radius of the limiting groove is 10 mm.
9. The device for detecting the resistance of the conductive adhesive according to any one of claims 1 to 2, 4 to 5, or 7, wherein the conductive adhesive limiting sheet is an integrally formed polytetrafluoroethylene sheet, and the first base material and the second base material are both a one-piece plate made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012249.5U CN211318592U (en) | 2019-11-20 | 2019-11-20 | Resistance detection device of conductive adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012249.5U CN211318592U (en) | 2019-11-20 | 2019-11-20 | Resistance detection device of conductive adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211318592U true CN211318592U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922012249.5U Expired - Fee Related CN211318592U (en) | 2019-11-20 | 2019-11-20 | Resistance detection device of conductive adhesive |
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| CN (1) | CN211318592U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406390A (en) * | 2021-05-19 | 2021-09-17 | 中航西安飞机工业集团股份有限公司 | Testing device and testing method for conductive colloid accumulated resistivity |
| CN113406393A (en) * | 2021-04-27 | 2021-09-17 | 中国节能减排有限公司 | Testing device and testing method for conductive colloid accumulated resistivity |
| CN113820542B (en) * | 2021-11-22 | 2022-02-08 | 深圳市利群联发科技有限公司 | Resistance detection equipment for conductive adhesive |
-
2019
- 2019-11-20 CN CN201922012249.5U patent/CN211318592U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406393A (en) * | 2021-04-27 | 2021-09-17 | 中国节能减排有限公司 | Testing device and testing method for conductive colloid accumulated resistivity |
| CN113406390A (en) * | 2021-05-19 | 2021-09-17 | 中航西安飞机工业集团股份有限公司 | Testing device and testing method for conductive colloid accumulated resistivity |
| CN113820542B (en) * | 2021-11-22 | 2022-02-08 | 深圳市利群联发科技有限公司 | Resistance detection equipment for conductive adhesive |
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Granted publication date: 20200821 |