CN105548860A - Electric performance testing method for carbon oil circuit board - Google Patents
Electric performance testing method for carbon oil circuit board Download PDFInfo
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- CN105548860A CN105548860A CN201510907499.9A CN201510907499A CN105548860A CN 105548860 A CN105548860 A CN 105548860A CN 201510907499 A CN201510907499 A CN 201510907499A CN 105548860 A CN105548860 A CN 105548860A
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- carbon oil
- wiring board
- network element
- insulation impedance
- electric performance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The invention discloses an electric performance testing method for a carbon oil circuit board, and the method comprises the following steps: carrying out the electric performance testing of all adjacent network units of a carbon oil region on the carbon oil circuit board through a first testing voltage, and judging whether the insulating resistance between the adjacent network units is greater than a preset insulating resistance value or not according to the result of first testing voltage electric performance testing; determining that the insulating resistances among the adjacent network units of the carbon oil region on the carbon oil circuit board meet the requirements if the insulating resistances among the adjacent network units of the carbon oil region on the carbon oil circuit board are all greater than the preset insulating resistance value, or else, determining that the insulating resistance of the carbon oil region on the carbon oil circuit board does not meet the requirements. The method can judge whether there is carbon oil in spot thready connection between the adjacent network units in the carbon oil region or not, thereby avoiding a short-circuit phenomenon happening in a use process.
Description
Technical field
The present invention relates to a kind of electric performance test method of wiring board, especially relate to a kind of electric performance test method of carbon oil wiring board.
Background technology
In circuit board manufacturing process, the wiring board to completing circuit making is needed to carry out electric performance test, to verify whether its electrical property meets the requirements.The electric performance test method of current wiring board is: first according to wiring board electrical data and network node, make corresponding fixture.Then fixture is arranged on electrical measurement test-run a machine, 150V test voltage is applied to electrical measurement test-run a machine and tests.Being turned on or off of network element is judged by the impedance information measuring network node, whether qualified according to test result assessment wiring board.
But use said method to after the test of carbon oil wiring board, the carbon oil wiring board that electric performance test passes through in use but finds that there is between adjacent network element exists short circuit phenomenon.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, provide a kind of electric performance test method of carbon oil wiring board, it can reduce the short circuit phenomenon that carbon oil wiring board in use exists.
Its technical scheme is as follows: a kind of electric performance test method of carbon oil wiring board, comprise the steps: all to carry out electric performance test by the first test voltage by between all adjacent network element in carbon oil region in carbon oil wiring board, and judge whether the insulation impedance between adjacent described network element is greater than the first default insulation impedance value according to the test result of described first test voltage electric performance test, wherein, described first test voltage is less than 150V; If the insulation impedance in carbon oil wiring board in carbon oil region between all adjacent described network element is all greater than first preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region meets the demands; If the insulation impedance existed in carbon oil region between adjacent described network element is less than the first default insulation impedance value in carbon oil wiring board, then show that the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region does not meet the demands.
Wherein in an embodiment, determining after the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region meets the demands, also comprise step: all carry out electric performance test by the second test voltage between the all-network unit in carbon oil wiring board and/or adjacent network element, wherein, described second test voltage is greater than described first test voltage; Judge whether the electrical property of described carbon oil wiring board meets the demands according to the test result of described second test voltage electric performance test, wherein: if the insulation impedance in carbon oil wiring board between all adjacent described network element is all greater than second preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between all adjacent described network element meets the demands; If the insulation impedance existed in carbon oil wiring board between adjacent described network element is less than second preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between adjacent described network element does not meet the demands.
Wherein in an embodiment, described first test voltage is 40 ~ 60V, and described second test voltage is 140 ~ 160V, and the described first default insulation impedance value is 2 ~ 5M Ω, and the described second default insulation impedance value is 8 ~ 12M Ω.
Wherein in an embodiment, described first test voltage is 50V, and described second test voltage is 150V, and the described first default insulation impedance value is 2M Ω, and the described second default insulation impedance value is 10M Ω.
Wherein in an embodiment, also comprise: the all-network unit in carbon oil region in carbon oil wiring board is all carried out electric performance test by the first test voltage; Test result according to described first test voltage or the second test voltage electric performance test judges whether the open-circuit impedance of described network element is greater than default open-circuit impedance value; If when the open-circuit impedance of described network element is greater than default open-circuit impedance value, then show that described network element is opened a way; If when the open-circuit impedance of described network element is less than default open-circuit impedance value, then show described network element conducting.
Wherein in an embodiment, described default open-circuit impedance value is 400 ~ 600 Ω.
Wherein in an embodiment, described default open-circuit impedance value is 500 Ω.
Wherein in an embodiment, when determining the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region and not meeting the demands, also comprise step: carbon oil region corresponding to the described network element do not met the demands to insulation impedance is cleared up, the carbon oil between the adjacent described network element that do not met the demands by insulation impedance is cleaned out; Again carry out electric performance test by the first test voltage by between all adjacent network element in the carbon oil region after clearing up, and whether be greater than first according to the insulation impedance that the test result of described first voltage electric performance test judges between adjacent described network element and preset insulation impedance value.
Wherein in an embodiment, the carbon oil region do not met the demands to insulation impedance in carbon oil wiring board is carried out cleaning and is comprised step: the carbon oil region first insulation impedance in described carbon oil wiring board not met the demands by high pressure water washing, and then by the carbon oil wiring board drying and processing through high pressure water washing.
Below in conjunction with technique scheme, principle of the present invention, effect are further illustrated:
The electric performance test method of 1, above-mentioned carbon oil wiring board, by adopting the first test voltage to test separately to the electrical property in carbon oil region in carbon oil wiring board, whether the insulation impedance obtained in carbon oil region between adjacent network element is greater than first is preset insulation impedance value.So can judge whether exist between adjacent network element in carbon oil region in a thread connected carbon oil, avoid carbon oil wiring board in use to occur short circuit phenomenon.
2, determining after the insulation impedance in carbon oil wiring board between the adjacent network element of carbon oil region meets the demands, electric performance test is carried out again by the all-network unit of the second test voltage to carbon oil wiring board, when insulation impedance between all adjacent described network element is all greater than the second default insulation impedance, the insulation impedance in carbon oil wiring board between adjacent described network element meets the demands.
3, by the first test voltage or the second test voltage, the network element in carbon oil wiring board is tested, when the all-network unit open impedance of carbon oil wiring board is less than default open-circuit impedance, then show each network element conducting on carbon oil wiring board, carbon oil wiring board electrical property is normal.
Embodiment
Below embodiments of the invention are described in detail:
Embodiment one
The electric performance test method of carbon oil wiring board of the present invention, comprises the steps:
S101, all carry out electric performance test by the first test voltage by between all adjacent network element in carbon oil region in carbon oil wiring board, and whether be greater than first according to the insulation impedance that the test result of described first test voltage electric performance test judges between adjacent described network element and preset insulation impedance value; In embodiments of the present invention, the first test voltage is 40 ~ 60V, and the first default insulation impedance value is 2 ~ 5M Ω.Wherein, adjacent network element refer to network node between two network element very close to, distance is at 100 ~ 1000 μm.Due to adjacent network node very close to, and carbon oil possesses good mobility, in screen printing process, carbon oil will permeate between the network node of adjacent network element, make between the network node of adjacent network element, to form a some silk to be connected shape, cause two network node weak shorts.Now, if as carried out whole plate electric performance test to carbon oil wiring board by electrical testing fixture in prior art, when electrical testing fixture is tested by applying the test voltage of 150V, test voltage can puncture the carbon oil of the shape that to be connected in some silk, and making to permeate has two network nodes of carbon oil by test.And the carbon oil wiring board that this electric performance test passes through is after placement a period of time, easily by such environmental effects, will be connected again, and cause the short circuit of carbon oil wiring board by the thread carbon oil of point that 150V test voltage punctures.Therefore, the present invention tests separately the insulation impedance in the carbon oil region of carbon oil wiring board between adjacent network element, and the first test voltage adopted is less than 150V, the thread connected carbon oil of existence point between adjacent network element just can be avoided breakdown and pass through electric performance test.
If the insulation impedance in S102 carbon oil wiring board in carbon oil region between all adjacent described network element is all greater than first preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region meets the demands; If the insulation impedance existed in carbon oil region between adjacent described network element is less than the first default insulation impedance value in carbon oil wiring board, then show that the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region does not meet the demands.
The electric performance test method of above-mentioned carbon oil wiring board, by adopting the first test voltage to test separately to the electrical property in carbon oil region in carbon oil wiring board, whether the insulation impedance obtained in carbon oil region between adjacent network element is greater than first is preset insulation impedance value.So can judge whether exist between adjacent network element in carbon oil region in a thread connected carbon oil, avoid carbon oil wiring board in use to occur short circuit phenomenon.
Embodiment two
Embodiment two is different from embodiment one, after its insulation impedance determined in embodiment one in described carbon oil wiring board between the adjacent described network element in carbon oil region meets the demands, also comprises step:
All carry out electric performance test by the second test voltage between the all-network unit in carbon oil wiring board and/or adjacent network element, described second test voltage is 140 ~ 160V.
Judge whether the electrical property of described carbon oil wiring board meets the demands according to the test result of described second test voltage electric performance test.If the insulation impedance in carbon oil wiring board between all adjacent described network element is all greater than second preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between all adjacent described network element meets the demands; If the insulation impedance existed in carbon oil wiring board between adjacent described network element is less than second preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between adjacent described network element does not meet the demands.Wherein, the described second default insulation impedance value is 8 ~ 12M Ω.
So, determining after the insulation impedance in carbon oil wiring board between the adjacent network element of carbon oil region meets the demands, namely eliminating carbon oil region in carbon oil wiring board and there is micro-short circuit defect between adjacent network element.Electric performance test is carried out again by the all-network unit of the second test voltage to carbon oil wiring board, when insulation impedance between all adjacent described network element is all greater than the second default insulation impedance, the insulation impedance in carbon oil wiring board between adjacent described network element meets the demands.
Embodiment three
Embodiment three is different from embodiment two, and it also comprises step:
The all-network unit in carbon oil region in carbon oil wiring board is all carried out electric performance test by the first test voltage; Test result according to described first test voltage or the second test voltage electric performance test judges whether the open-circuit impedance of described network element is greater than default open-circuit impedance value; Wherein, described default open-circuit impedance value is 400 ~ 600 Ω.
If when the open-circuit impedance of described network element is greater than default open-circuit impedance value, then show that described network element is opened a way; If when the open-circuit impedance of described network element is less than default open-circuit impedance value, then show described network element conducting.
So, by the first test voltage or the second test voltage, the network element in carbon oil wiring board is tested, when the all-network unit open impedance of carbon oil wiring board is less than default open-circuit impedance, then show each network element conducting on carbon oil wiring board, carbon oil wiring board electrical property is normal.
Embodiment four
Embodiment four is different from embodiment one to three part and is: described first test voltage is 50V, and described second test voltage is 150V.Described first default insulation impedance value is 2M Ω, and the described second default insulation impedance value is 10M Ω.Described default open-circuit impedance value is 500 Ω.Measured by the electrical property of this parameter to carbon oil wiring board, to obtain the electric performance test result of carbon oil wiring board more accurate.
Embodiment five
Embodiment five is different from embodiment one to four, and it, when determining the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region and not meeting the demands, also comprises step:
Carbon oil region corresponding to the described network element do not met the demands to insulation impedance is cleared up, and the carbon oil between the adjacent described network element that do not met the demands by insulation impedance is cleaned out; Again carry out electric performance test by the first test voltage by between all adjacent network element in the carbon oil region after clearing up, and whether be greater than first according to the insulation impedance that the test result of described first voltage electric performance test judges between adjacent described network element and preset insulation impedance value.
Wherein, the carbon oil region do not met the demands to insulation impedance in carbon oil wiring board is carried out cleaning and is comprised step: the carbon oil region first insulation impedance in described carbon oil wiring board not met the demands by high pressure water washing, and then by the carbon oil wiring board drying and processing through high pressure water washing.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. an electric performance test method for carbon oil wiring board, is characterized in that, comprise the steps:
All electric performance test is carried out by the first test voltage by between all adjacent network element in carbon oil region in carbon oil wiring board, and judge whether the insulation impedance between adjacent described network element is greater than the first default insulation impedance value according to the test result of described first test voltage electric performance test, wherein, described first test voltage is less than 150V;
If the insulation impedance in carbon oil wiring board in carbon oil region between all adjacent described network element is all greater than first preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region meets the demands;
If the insulation impedance existed in carbon oil region between adjacent described network element is less than the first default insulation impedance value in carbon oil wiring board, then show that the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region does not meet the demands.
2. the electric performance test method of carbon oil wiring board according to claim 1, it is characterized in that, determining after the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region meets the demands, also comprise step: all carry out electric performance test by the second test voltage between the all-network unit in carbon oil wiring board and/or adjacent network element, wherein, described second test voltage is greater than described first test voltage; Judge whether the electrical property of described carbon oil wiring board meets the demands according to the test result of described second test voltage electric performance test, wherein:
If the insulation impedance in carbon oil wiring board between all adjacent described network element is all greater than second preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between all adjacent described network element meets the demands;
If the insulation impedance existed in carbon oil wiring board between adjacent described network element is less than second preset insulation impedance value, then show that the insulation impedance in described carbon oil wiring board between adjacent described network element does not meet the demands.
3. the electric performance test method of carbon oil wiring board according to claim 2, it is characterized in that, described first test voltage is 40 ~ 60V, and described second test voltage is 140 ~ 160V, described first default insulation impedance value is 2 ~ 5M Ω, and the described second default insulation impedance value is 8 ~ 12M Ω.
4. the electric performance test method of carbon oil wiring board according to claim 3, it is characterized in that, described first test voltage is 50V, and described second test voltage is 150V, described first default insulation impedance value is 2M Ω, and the described second default insulation impedance value is 10M Ω.
5. the electric performance test method of carbon oil wiring board according to claim 2, is characterized in that, also comprise: the all-network unit in carbon oil region in carbon oil wiring board is all carried out electric performance test by the first test voltage; Test result according to described first test voltage or the second test voltage electric performance test judges whether the open-circuit impedance of described network element is greater than default open-circuit impedance value;
If when the open-circuit impedance of described network element is greater than default open-circuit impedance value, then show that described network element is opened a way; If when the open-circuit impedance of described network element is less than default open-circuit impedance value, then show described network element conducting.
6. the electric performance test method of carbon oil wiring board according to claim 5, is characterized in that, described default open-circuit impedance value is 400 ~ 600 Ω.
7. the electric performance test method of carbon oil wiring board according to claim 6, is characterized in that, described default open-circuit impedance value is 500 Ω.
8. the electric performance test method of carbon oil wiring board according to claim 1, is characterized in that, when determining the insulation impedance in described carbon oil wiring board between the adjacent described network element in carbon oil region and not meeting the demands, also comprises step:
Carbon oil region corresponding to the described network element do not met the demands to insulation impedance is cleared up, and the carbon oil between the adjacent described network element that do not met the demands by insulation impedance is cleaned out;
Again carry out electric performance test by the first test voltage by between all adjacent network element in the carbon oil region after clearing up, and whether be greater than first according to the insulation impedance that the test result of described first voltage electric performance test judges between adjacent described network element and preset insulation impedance value.
9. the electric performance test method of carbon oil wiring board according to claim 8, is characterized in that, the carbon oil region do not met the demands to insulation impedance in carbon oil wiring board is carried out cleaning and comprised step:
The carbon oil region first insulation impedance in described carbon oil wiring board not met the demands by high pressure water washing, and then by the carbon oil wiring board drying and processing through high pressure water washing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907499.9A CN105548860B (en) | 2015-12-09 | 2015-12-09 | A kind of electric performance test method of carbon oil wiring board |
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| CN201510907499.9A CN105548860B (en) | 2015-12-09 | 2015-12-09 | A kind of electric performance test method of carbon oil wiring board |
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| CN105548860A true CN105548860A (en) | 2016-05-04 |
| CN105548860B CN105548860B (en) | 2018-12-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607858A (en) * | 2017-09-22 | 2018-01-19 | 信利光电股份有限公司 | Determination method, system, device and the readable storage medium storing program for executing of module open-circuit position |
| CN109164311A (en) * | 2018-07-13 | 2019-01-08 | 智车优行科技（上海）有限公司 | Fault detection method and device, electronic equipment |
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| CN101581749A (en) * | 2008-05-16 | 2009-11-18 | 北大方正集团有限公司 | Method and system for circuit test of printed circuit board |
| CN101799207A (en) * | 2010-03-05 | 2010-08-11 | 清华大学 | System and method for recycling waste heat of bath sewage by utilizing absorption heat pump |
| CN203275558U (en) * | 2013-04-28 | 2013-11-06 | 胜宏科技（惠州）股份有限公司 | Carbon oil leak print test PAD of PCB board |
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| CN1237713A (en) * | 1998-03-05 | 1999-12-08 | 先得利科技发展有限公司 | Method for removing micro short circuit and its apparatus |
| CN201156069Y (en) * | 2008-01-21 | 2008-11-26 | 东莞中逸电子有限公司 | Empty circuit board testing device |
| CN101581749A (en) * | 2008-05-16 | 2009-11-18 | 北大方正集团有限公司 | Method and system for circuit test of printed circuit board |
| CN101799207A (en) * | 2010-03-05 | 2010-08-11 | 清华大学 | System and method for recycling waste heat of bath sewage by utilizing absorption heat pump |
| CN203275558U (en) * | 2013-04-28 | 2013-11-06 | 胜宏科技（惠州）股份有限公司 | Carbon oil leak print test PAD of PCB board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107607858A (en) * | 2017-09-22 | 2018-01-19 | 信利光电股份有限公司 | Determination method, system, device and the readable storage medium storing program for executing of module open-circuit position |
| CN109164311A (en) * | 2018-07-13 | 2019-01-08 | 智车优行科技（上海）有限公司 | Fault detection method and device, electronic equipment |
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| CN105548860B (en) | 2018-12-18 |
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Effective date of registration: 20170227 Address after: 528415 Zhongshan Xiaolan Town, Guangdong Province Applicant after: Jielishi Multi-layer Circuit Board (zhongshan) Co., Ltd. Address before: 528415 Guangdong Province, Zhongshan City Xiaolan Town, Yongning Guangfu Road No. 51 Applicant before: ZHONGSHAN HUIYA LINE VERSION CO., LTD. |
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