CN107401983A - The conducting resinl thickness detecting method of flexible PCB - Google Patents
The conducting resinl thickness detecting method of flexible PCB Download PDFInfo
- Publication number
- CN107401983A CN107401983A CN201710897313.5A CN201710897313A CN107401983A CN 107401983 A CN107401983 A CN 107401983A CN 201710897313 A CN201710897313 A CN 201710897313A CN 107401983 A CN107401983 A CN 107401983A
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- CN
- China
- Prior art keywords
- flexible pcb
- conducting resinl
- detecting method
- section
- infrared detector
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses the conducting resinl thickness detecting method of flexible PCB, comprise the following steps, step 1：Extract flexible PCB model, it is coated with specimen surface and knows layer, the identification layer is coloured waterproof layer, model is put into ready section disk, the mixture of lucite powder and solid resin solution is poured into toward section disk, in slice disk after mass sets, sample is poured out, that is, forms flexible PCB section；Step 2：To the flexible PCB section grinding and polishing in step 1；Step 3：The flexible PCB after grinding and polishing in step 2 is cut into slices by detection device, it is put into fixture, by fixture and adhere to equipment conjunction measuring, the detection device is that fixture respectively sets an infrared detector up and down, parallel light source is set between the infrared detector up and down, opens infrared detector, using parallel light source as cut-off, upper table face thickness and following plate thickness are detected, is shown by sending to shadow image to display.
Description
Technical field
The present invention relates to a kind of detection method, and in particular to the conducting resinl thickness detecting method of flexible PCB.
Background technology
Flexible PCB has the mode for being printed with conducting resinl, manufacture link just need to conducting resinl) thickness examine
Survey, meet specific thickness and be only qualified products.The conducting particles of conducting resinl has certain height, if conducting resinl is too thin, when press against
The easy fragmentation of conducting particles, cause conductive unidirectional, dysfunction；If conducting resinl is too thick, gold face is difficult to contact conducting particles when press against,
Causing can not be conductive, dysfunction.As can be seen here, the detection for the conducting resinl thickness of flexible PCB is very necessary.
Such as one patent publication No. 101711091A " technique for applying of anisotropic conductive paste to flexible printed circuits " wherein last walk
Rapid just mention needs to test the thickness of conducting resinl, and it is qualified to meet 30-40 μm.However, have no one kind in existing means
The detection method of the conducting resinl thickness for the flexible PCB that can simply measure.Due to flexible PCB and the thickness value of conducting resinl
Very little, the micrometer measurer using routine are difficult to measure its thickness.
The content of the invention
The technical problems to be solved by the invention are due to the thickness value very little of flexible PCB and conducting resinl, utilize routine
Micrometer measurer be to be difficult to measure its thickness the conducting resinl thickness detecting method, and it is an object of the present invention to provide flexible PCB, solve
Due to the thickness value very little of flexible PCB and conducting resinl, the micrometer measurer using routine is to be difficult to measure asking for its thickness
Topic.
The present invention is achieved through the following technical solutions：
The conducting resinl thickness detecting method of flexible PCB, comprises the following steps, step 1：Flexible PCB model is extracted,
It is coated with specimen surface and knows layer, the identification layer is coloured waterproof layer, model is put into ready section disk, toward section
Lucite powder is poured into disk and consolidates the mixture of resin solution, in slice disk after mass sets, sample is poured out, that is, is formed soft
Property circuit board section；Step 2：To the flexible PCB section grinding and polishing in step 1；Step 3：By detection device to step
Flexible PCB section in 2 after grinding and polishing, is put into fixture, by fixture and adheres to equipment conjunction measuring, the detection
Equipment is that fixture respectively sets an infrared detector up and down, sets parallel light source between the infrared detector up and down, opens
Infrared detector, using parallel light source as cut-off, detection upper table face thickness and following plate thickness, by send to shadow image to
Display shows that the display electrically connects with infrared detector.Due to the thickness value very little of flexible PCB and conducting resinl, profit
It is difficult to measure its thickness with the micrometer measurer of routine., it is of the invention to be detected by the way of collecting sample, so detect
The smaller convenient operation of scope, second is detected by upper and lower two infrared detectors, while thickness is detected, can detect inside
Distribution situation, it can determine whether conducting resinl is qualified product.
The response time of the infrared detector is 20 μ.Further, the preferred scheme as the present invention.
It is that conducting resinl is unqualified when the ratio of the shadow image up and down exceedes threshold value H.Further, as the present invention's
Preferred scheme.Judged by the quality of distribution, while detecting thickness, do not increase other extra processes and detected matter
Amount.
Cut into slices in the step 2, one layer of duroplasts glue-line of resolidification after polishing.Further, the preferred side as the present invention
Case,
The quantity glue-line is the mixed liquor of cyanacrylate and tackifier, further, as the preferred of the present invention
Scheme.
The present invention compared with prior art, has the following advantages and advantages：
1st, the conducting resinl thickness detecting method of flexible PCB of the present invention, detected by upper and lower two infrared detectors,
While detecting thickness, the distribution situation of inside can be detected, can determine whether conducting resinl is qualified product；
2nd, the conducting resinl thickness detecting method of flexible PCB of the present invention, is judged by the quality of distribution, is visited in thickness
While survey, do not increase other extra processes and detected quality；
3rd, the conducting resinl thickness detecting method of flexible PCB of the present invention, one layer of duroplasts glue-line of resolidification, in order to folder
Tool preferably combines so that result of detection is more accurate.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1
The conducting resinl thickness detecting method of flexible PCB of the present invention, comprises the following steps, step 1：Extract flexible circuit
Plate model, it is coated with specimen surface and knows layer, the identification layer is coloured waterproof layer, and model is put into ready section disk
It is interior, toward section disk in pour into the mixture of lucite powder and solid resin solution, in slice disk after mass sets, pour out sample
This, that is, form flexible PCB section；Step 2：To the flexible PCB section grinding and polishing in step 1；Step 3：Pass through inspection
Measurement equipment is cut into slices to the flexible PCB after grinding and polishing in step 2, is put into fixture, by fixture and adheres to that equipment coordinates survey
Amount, the detection device are that fixture respectively sets an infrared detector up and down, are set between the infrared detector up and down parallel
Radiant, infrared detector is opened, using parallel light source as cut-off, detection upper table face thickness and following plate thickness, pass through transmission
Shown to shadow image to display, the display electrically connects with infrared detector.
During use：Detected by the way of collecting sample, the smaller convenient operation of the scope so detected, second by upper and lower
Two infrared detector detections, while thickness is detected, can detect the distribution situation of inside, can determine whether conducting resinl
Whether it is qualified product.
Embodiment 2
The conducting resinl thickness detecting method of flexible PCB of the present invention, comprises the following steps, step 1：Extract flexible circuit
Plate model, it is coated with specimen surface and knows layer, the identification layer is coloured waterproof layer, and model is put into ready section disk
It is interior, toward section disk in pour into the mixture of lucite powder and solid resin solution, in slice disk after mass sets, pour out sample
This, that is, form flexible PCB section；Step 2：To the flexible PCB section grinding and polishing in step 1；Step 3：Pass through inspection
Measurement equipment is cut into slices to the flexible PCB after grinding and polishing in step 2, is put into fixture, by fixture and adheres to that equipment coordinates survey
Amount, the detection device are that fixture respectively sets an infrared detector up and down, are set between the infrared detector up and down parallel
Radiant, infrared detector is opened, using parallel light source as cut-off, detection upper table face thickness and following plate thickness, pass through transmission
Shown to shadow image to display, the display electrically connects with infrared detector.
The response time of the infrared detector is 20 μ.When the ratio of the shadow image up and down exceedes threshold value H, to lead
Electric glue is unqualified.Cut into slices in the step 2, one layer of duroplasts glue-line of resolidification after polishing.The quantity glue-line is cyanoacrylate
The mixed liquor of acetoacetic ester and tackifier.
During use：Judged by the quality of distribution, while detecting thickness, do not increase other extra process detections
Quality, is detected by the way of collecting sample, and the smaller convenient operation of the scope so detected, second is infrared by upper and lower two
Detector detects, and while thickness is detected, can detect the distribution situation of inside, can determine whether conducting resinl is conjunction
The product of lattice.
Described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Illustrate, should be understood that the embodiment that the foregoing is only the present invention, the guarantor being not intended to limit the present invention
Scope is protected, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in this
Within the protection domain of invention.
Claims (5)
1. the conducting resinl thickness detecting method of flexible PCB, it is characterised in that：Comprise the following steps,
Step 1：Flexible PCB model is extracted, is coated with specimen surface and knows layer, the identification layer is coloured waterproof layer, by sample
Plate be put into it is ready section disk in, toward section disk in pour into lucite powder and consolidate resin solution mixture, slice disk
After interior mass sets, sample is poured out, that is, forms flexible PCB section；
Step 2：To the flexible PCB section grinding and polishing in step 1；
Step 3：The flexible PCB after grinding and polishing in step 2 is cut into slices by detection device, is put into fixture, passes through fixture
With adhering to equipment conjunction measuring, the detection device is that fixture respectively sets an infrared detector, the infrared spy up and down up and down
Survey between device and parallel light source be set, open infrared detector, using parallel light source for cut-off, detect upper table face thickness with it is following
Plate thickness, shown by sending to shadow image to display, the display electrically connects with infrared detector.
2. the conducting resinl thickness detecting method of flexible PCB according to claim 1, it is characterised in that：The infrared spy
The response time for surveying device is 20 μ.
3. the conducting resinl thickness detecting method of flexible PCB according to claim 1, it is characterised in that：It is described cloudy up and down
It is that conducting resinl is unqualified when the ratio of shadow image exceedes threshold value H.
4. the conducting resinl thickness detecting method of flexible PCB according to claim 1, it is characterised in that：The step 2
Middle section, one layer of duroplasts glue-line of resolidification after polishing.
5. the conducting resinl thickness detecting method of flexible PCB according to claim 4, it is characterised in that：The quantity glue
Layer is cyanacrylate and the mixed liquor of tackifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897313.5A CN107401983A (en) | 2017-09-28 | 2017-09-28 | The conducting resinl thickness detecting method of flexible PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897313.5A CN107401983A (en) | 2017-09-28 | 2017-09-28 | The conducting resinl thickness detecting method of flexible PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401983A true CN107401983A (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710897313.5A Pending CN107401983A (en) | 2017-09-28 | 2017-09-28 | The conducting resinl thickness detecting method of flexible PCB |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005164251A (en) * | 2003-11-28 | 2005-06-23 | Kurabo Ind Ltd | Method for measuring film thickness, and instrument thereof |
| CN102082108A (en) * | 2010-10-26 | 2011-06-01 | 华中科技大学 | Method and device for rapidly measuring sidewall appearance of micro-nano deep groove structure |
| CN202572976U (en) * | 2012-05-10 | 2012-12-05 | 广州市金威龙实业股份有限公司 | Film thickness detection device of film blowing machine |
| CN102840832A (en) * | 2012-09-11 | 2012-12-26 | 厦门爱谱生电子科技有限公司 | Method for detecting thickness of conductive adhesive on flexible printed circuit board and slice structure of flexible printed circuit board |
| CN103050580A (en) * | 2013-01-11 | 2013-04-17 | 四川汇源科技发展股份有限公司 | Pyroelectric infrared detector and preparing method thereof |
-
2017
- 2017-09-28 CN CN201710897313.5A patent/CN107401983A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005164251A (en) * | 2003-11-28 | 2005-06-23 | Kurabo Ind Ltd | Method for measuring film thickness, and instrument thereof |
| CN102082108A (en) * | 2010-10-26 | 2011-06-01 | 华中科技大学 | Method and device for rapidly measuring sidewall appearance of micro-nano deep groove structure |
| CN202572976U (en) * | 2012-05-10 | 2012-12-05 | 广州市金威龙实业股份有限公司 | Film thickness detection device of film blowing machine |
| CN102840832A (en) * | 2012-09-11 | 2012-12-26 | 厦门爱谱生电子科技有限公司 | Method for detecting thickness of conductive adhesive on flexible printed circuit board and slice structure of flexible printed circuit board |
| CN103050580A (en) * | 2013-01-11 | 2013-04-17 | 四川汇源科技发展股份有限公司 | Pyroelectric infrared detector and preparing method thereof |
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Application publication date: 20171128 |