CN104865181A - Weatherability screening method for conductive adhesive in electronic tag inlay - Google Patents
Weatherability screening method for conductive adhesive in electronic tag inlay Download PDFInfo
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- CN104865181A CN104865181A CN201510283274.0A CN201510283274A CN104865181A CN 104865181 A CN104865181 A CN 104865181A CN 201510283274 A CN201510283274 A CN 201510283274A CN 104865181 A CN104865181 A CN 104865181A
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Abstract
The invention belongs to the field of electronic tags and particularly relates to a weatherability screening method for a conductive adhesive in an electronic tag inlay. The method comprises the following steps: firstly, packaging the to-be-tested conductive adhesive into inlay; secondly, performing reading and electric performance testing; thirdly, performing high and low temperature cycle for 80-120 cycles in a testing box; fourthly, performing reading and electric performance testing after completing the testing; fifthly, judging that the conductive adhesive is a qualified product only when the reading can be normally carried out and the electric performance fluctuates in a certain range. The method solves a screening problem of the conductive adhesive during inlay packaging; for inlay used in an environment with a great temperature change, the conductive adhesive is tested with the method and then subjected to packaging production, so that a phenomenon of incapability of reading the tag is avoided, the service life of products is prolonged, the use costs of users are reduced, and the overall efficiency of RFID (radio frequency identification) application projects is improved.
Description
Technical field
The present invention relates to and belong to electronic tag field, be specifically related to a kind of electronic tag inlay conducting resinl weatherability screening technique.
Background technology
Electronic tag, also known as radio-frequency (RF) identification (RFID, Radio Frequency Identification), is a kind of contactless automatic identification technology.By at a distance of several centimetres to several meters radiowaves launched apart from interior read write line, the information that can store in reading electronic labels, the identity of the article of identification representated by electronic tag, people and utensil.
After China in 2010 Internet of Things development is formally listed in national development strategy, China RFID and Internet of Things industry have welcome rare opportunity to develop.Each ministries and commissions make a concerted effort to promote RFID Applied D emonstration engineering, the RFID such as intelligent grid, intelligent transportation, financial service, logistic storage, medical treatment & health, food security emphasis application item quantity of being correlated with obviously increases, scope expands rapidly, and RFID is applied to the every aspect of people's life just gradually.
But in the practical application of RFID, also there is many problems, wherein most distinct issues are: label there will be in use for some time and cannot read phenomenon.This directly causes being identified the generation that thing effectively cannot identify situation, brings great restriction to the development of RFID and Internet of Things.
The terminal applies circumstance complication of electronic tag, the such as intelligent transportation of some application, gas cylinder management etc., variation of ambient temperature is violent, and environment for use is severe, and the electronic tag crash rate in this field will apparently higher than other applications.After the structure of analytic product after deliberation, implicit quality problems are found: the weather resistance of conducting resinl is poor, because high temperature changes, cause the conducting resinl of poor performance to lose conduction property, and then label cannot read.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of electronic tag inlay conducting resinl weatherability screening technique, solve the select permeability of conductive adhesive therewith in electronic tag inlay.
Electronic tag inlay conducting resinl weatherability screening technique of the present invention, comprises the following steps:
(1) first conducting resinl to be measured is packaged into inlay;
(2) carried out reading and electric performance test by the inlay that step (1) obtains, electric performance test comprises: reading, center frequency point, Q value, reading distance, sensitivity and Die shear power;
(3) inlay after encapsulation is entirely placed in chamber;
(4) test the temperature inside the box is risen to 100 ± 2 DEG C, keep 10-30 minute;
(5) then test the temperature inside the box is cooled to-40 ± 2 DEG C in 3-5 minute, keeps 10-30 minute at-40 ± 2 DEG C;
(6) step (4) and step (5) are one-period, repeat 80-120 cycle;
(7) take out the inlay after the encapsulation of test after test, first carry out read test, as read, then judge that conducting resinl is defective, as normal reading, then enter next step and continue test;
(8) carry out other electric performance test again, and with test before data contrast: only have and all meet following requirement, just judge that conducting resinl is as specification product: center frequency point high-frequency fluctuation within 5%, ultrahigh frequency fluctuates within 1%; The fluctuation of Q value is within 5%; Sensitivity fluctuation is within 5%; Read distance fluctuation within 10%; Die shear fluctuation is within 10%.
Wherein:
Step (1) is packaged into inlay for adopting prior art and antenna, chip to adopt conducting resinl to be measured;
Step (4), for test the temperature inside the box is risen to 100 ± 2 DEG C, keeps 10 minutes.
Step (5), for then test the temperature inside the box was cooled to-40 ± 2 DEG C in 3-5 minute, keeps 10 minutes at-40 ± 2 DEG C.
Step (6) is one-period for step (4) and step (5), repeats 100 cycles.
Only all tests of (7) and step (8) are all qualified in steps, just judge that conducting resinl is as specification product, if there is a performance test defective, then judge that conducting resinl is as substandard product.
The present invention is directed to the inlay being applied to bad environments, the conducting resinl that resistance to temperature change energy is good will be selected from the conducting resinl of multiple different model before encapsulation, adopt experimental technique of the present invention, the object of screening conducting resinl can be reached, thus avoid the application stage to occur the reading failure problem of batch, avoid bringing unnecessary economic loss to manufacturer and client.
During practical application, the mode of sampling observation can be adopted, product sampling observation part is tested, if all samples test of sampling observation is all qualified, then be judged to be specification product.
The qualified conducting resinl obtained through the inventive method screening adopts common process to prepare electronic tag, the electronic tag long service life prepared.
In sum, the present invention has the following advantages:
(1) the present invention uses high/low-temperature impact equipment to test packaged inlay, pole low temperature is transformed at short notice by very high temperature, or be transformed into very high temperature by pole low temperature, so that test samples is because of caused chemical change or the physical injury of expanding with heat and contract with cold at short notice.Because the applied environment temperature range of electronic tag in gas cylinder management and intelligent transportation is about-20 DEG C ~ 80 DEG C, so the high temperature in this inventive method is chosen as 100 ± 2 DEG C, low temperature is chosen as-40 ± 2 DEG C; Further, the actual use of simulation label, high/low temperature switching time is 3-5 minute; The high/low temperature temperature cycles cycle is 80-120, and for reaching the object of fail-test and product screening, the preferred cycle cycle is 100.
(2) the invention solves the screening problem of conducting resinl during inlay encapsulation, for the inlay used in the environment that temperature variation is violent, its conducting resinl encapsulates production after test of the present invention, the label avoiding project implementation phase appearance cannot read phenomenon, add the serviceable life of product simultaneously, reduce the use cost of user, promote the whole efficiency of RFID application item.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
Choose commercially available a certain conducting resinl sample and carry out weatherability screening technique:
(1) choose commercially available a certain conducting resinl sample, first conducting resinl to be measured is become inlay with antenna, chip package;
(2) choose the inlay that 10 pieces of steps (1) obtain to carry out reading and electric performance test, electric performance test comprises: reading, center frequency point, Q value, read distance, sensitivity and Die shear power;
(3) inlay after encapsulating 10 pieces is entirely placed in chamber;
(4) test the temperature inside the box is risen to 100 ± 2 DEG C, keep 10 minutes;
(5) then test the temperature inside the box was cooled to-40 ± 2 DEG C in 5 minutes, keeps 10 minutes at-40 ± 2 DEG C;
(6) step (4) and step (5) are one-period, repeat 100 cycles;
(7) take out the inlay after the encapsulation of test after test, first carry out read test, experimental result is that 3 pieces of inlay cannot read, so directly judge that this conducting resinl is defective.
Embodiment 2
Choose commercially available a certain conducting resinl sample and carry out weatherability screening technique:
(1) choose commercially available a certain conducting resinl sample, first conducting resinl to be measured is become inlay with antenna, chip package;
(2) choose the inlay that 10 pieces of steps (1) obtain to carry out reading and electric performance test, electric performance test comprises: reading, center frequency point, Q value, read distance, sensitivity and Die shear power;
(3) inlay after encapsulating 10 pieces is entirely placed in chamber;
(4) test the temperature inside the box is risen to 100 ± 2 DEG C, keep 20 minutes;
(5) then test the temperature inside the box was cooled to-40 ± 2 DEG C in 3 minutes, keeps 20 minutes at-40 ± 2 DEG C;
(6) step (4) and step (5) are one-period, repeat 100 cycles;
(7) take out the inlay after the encapsulation of test after test, first carry out read test, all can normally read, enter next step and continue test;
(8) carry out other electric performance test again, and contrast with the front data of test: centered by test result, frequency high-frequency fluctuation is greater than 5%, so judge that this conducting resinl is defective.
Embodiment 3
Choose commercially available a certain conducting resinl sample and carry out weatherability screening technique:
(1) choose commercially available a certain conducting resinl sample, first conducting resinl to be measured is become inlay with antenna, chip package;
(2) choose the inlay that 10 pieces of steps (1) obtain to carry out reading and electric performance test, electric performance test comprises: reading, center frequency point, Q value, read distance, sensitivity and Die shear power;
(3) inlay after encapsulating 10 pieces is entirely placed in chamber;
(4) test the temperature inside the box is risen to 100 ± 2 DEG C, keep 15 minutes;
(5) then test the temperature inside the box was cooled to-40 ± 2 DEG C in 3 minutes, keeps 15 minutes at-40 ± 2 DEG C;
(6) step (4) and step (5) are one-period, repeat 100 cycles;
(7) take out the inlay after the encapsulation of test after test, first carry out read test, all can normally read, then judge that conducting resinl is qualified;
(8) carry out other electric performance test again, and with test before data contrast: test result is: center frequency point high-frequency fluctuation within 5%, ultrahigh frequency fluctuates within 1%; The fluctuation of Q value is within 5%; Sensitivity fluctuation is within 5%; Read distance fluctuation within 10%; Die shear fluctuation is within 10%.
The 10 pieces of conducting resinls chosen due to this product are all qualified in all tests of step (7) and step (8), so judge that this conducting resinl is as specification product.
Claims (4)
1. an electronic tag inlay conducting resinl weatherability screening technique, is characterized in that: comprise the following steps:
(1) first conducting resinl to be measured is packaged into inlay;
(2) carried out reading and electric performance test by the inlay that step (1) obtains, electric performance test comprises: reading, center frequency point, Q value, reading distance, sensitivity and Die shear power;
(3) inlay after encapsulation is entirely placed in chamber;
(4) test the temperature inside the box is risen to 100 ± 2 DEG C, keep 10-30 minute;
(5) then test the temperature inside the box is cooled to-40 ± 2 DEG C in 3-5 minute, keeps 10-30 minute at-40 ± 2 DEG C;
(6) step (4) and step (5) are one-period, repeat 80-120 cycle;
(7) take out the inlay after the encapsulation of test after test, first carry out read test, as read, then judge that conducting resinl is defective, as normal reading, then enter next step and continue test;
(8) carry out other electric performance test again, and with test before data contrast: only have and all meet following requirement, just judge that conducting resinl is as specification product: center frequency point high-frequency fluctuation within 5%, ultrahigh frequency fluctuates within 1%; The fluctuation of Q value is within 5%; Sensitivity fluctuation is within 5%; Read distance fluctuation within 10%; Die shear fluctuation is within 10%.
2. electronic tag inlay conducting resinl weatherability screening technique according to claim 1, is characterized in that: step (4), for test the temperature inside the box is risen to 100 ± 2 DEG C, keeps 10 minutes.
3. electronic tag inlay conducting resinl weatherability screening technique according to claim 1, is characterized in that: step (5), for then test the temperature inside the box was cooled to-40 ± 2 DEG C in 3-5 minute, keeps 10 minutes at-40 ± 2 DEG C.
4. electronic tag inlay conducting resinl weatherability screening technique according to claim 1, is characterized in that: step (6) is one-period for step (4) and step (5), repeats 100 cycles.
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| CN201510283274.0A CN104865181A (en) | 2015-05-28 | 2015-05-28 | Weatherability screening method for conductive adhesive in electronic tag inlay |
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| CN201510283274.0A CN104865181A (en) | 2015-05-28 | 2015-05-28 | Weatherability screening method for conductive adhesive in electronic tag inlay |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814108A (en) * | 2017-01-13 | 2017-06-09 | 永道无线射频标签(扬州)有限公司 | It is a kind of to detect detecting system and its application method that whether conducting resinl has fine fisssure to hinder |
| CN107247206A (en) * | 2017-05-04 | 2017-10-13 | 上扬无线射频科技扬州有限公司 | HF RPID tags performance detection Online Transaction Processing |
| CN108007857A (en) * | 2017-12-27 | 2018-05-08 | 天津理工大学 | The method and apparatus of two-dimension code label weatherability and rub resistance composite test |
| CN113655087A (en) * | 2021-08-18 | 2021-11-16 | 雄芯光电科技有限责任公司 | Conductive adhesive testing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814108A (en) * | 2017-01-13 | 2017-06-09 | 永道无线射频标签(扬州)有限公司 | It is a kind of to detect detecting system and its application method that whether conducting resinl has fine fisssure to hinder |
| CN106814108B (en) * | 2017-01-13 | 2019-07-16 | 永道无线射频标签(扬州)有限公司 | A kind of detection system and its application method whether detection conducting resinl has fine fisssure to hurt |
| CN107247206A (en) * | 2017-05-04 | 2017-10-13 | 上扬无线射频科技扬州有限公司 | HF RPID tags performance detection Online Transaction Processing |
| CN108007857A (en) * | 2017-12-27 | 2018-05-08 | 天津理工大学 | The method and apparatus of two-dimension code label weatherability and rub resistance composite test |
| CN108007857B (en) * | 2017-12-27 | 2024-03-22 | 天津理工大学 | Method and device for combined test of weather resistance and friction resistance of two-dimensional code label |
| CN113655087A (en) * | 2021-08-18 | 2021-11-16 | 雄芯光电科技有限责任公司 | Conductive adhesive testing device |
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