CN103033737A - Printed circuit board (PCB) through printing character detecting method - Google Patents
Printed circuit board (PCB) through printing character detecting method Download PDFInfo
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- CN103033737A CN103033737A CN2012105481032A CN201210548103A CN103033737A CN 103033737 A CN103033737 A CN 103033737A CN 2012105481032 A CN2012105481032 A CN 2012105481032A CN 201210548103 A CN201210548103 A CN 201210548103A CN 103033737 A CN103033737 A CN 103033737A
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- pcb board
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- biting
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Abstract
The invention discloses a printed circuit board (PCB) through printing character detecting method which includes the following steps that more than two pads (2) are additionally arranged on a wire layer of an open area when a PCB (1) is manufactured, the pads (2) are respectively connected through a wire (3), character printing oil (4) is used to cover the pads (2) when character printing is carried out on the PCB (1), any two pads (2) covered by the character printing oil (4) serve as testing points to test break-over situations between the two pads (2), if a short circuit is detected by the two pads (2) serving as the testing points, through printing of the PCB (1) is detected, or otherwise, the PCB (1) is detected not to be printed in a through mode. The detecting method can effectively detect through printing of the PCB without additional adding procedures.
Description
Technical field
The present invention relates to a kind of detection method of pcb board technical field, the particularly a kind of pcb board character detecting method of biting.
Background technology
Pcb board is printed circuit board, claims again printed circuit board (PCB), printed-wiring board (PWB), is important electronic unit, is the supporter of electronic devices and components, is the supplier of electronic devices and components electrical connection.Because it is to adopt electron printing to make, therefore be called as " printing " circuit board.
In order clearly to indicate various signs, need to print literal on the pcb board.But in normal production run, bulk article because the literal phenomenon of biting often appears in the personnel operation carelessness, so just brings certain quality problems to product in the printing word process.
Summary of the invention
Technical matters to be solved by this invention provides a kind of pcb board character detecting method of biting, and the method can detect the pcb board literal of whether biting easily.
In order to solve above-mentioned technical matters, technical scheme of the present invention is: a kind of pcb board character detecting method of biting may further comprise the steps:
When 1) making pcb board, the line layer in the spacious district of pcb board additionally arranges plural pad, connects by wire respectively between the described pad;
2) when pcb board is carried out text printout, use text printout oil that above-mentioned pad is covered;
3) pcb board is carried out in the testing electrical property process, any two pads of above-mentioned covering text printout oil as test point, are tested the conducting situation between two pads;
4) if above-mentioned two pads test short circuits as test point then detect the pcb board literal of biting; Otherwise, then detect the pcb board literal of not biting.
For detecting quickly and easily, in step 1), the extra pad that arranges of the line layer in the spacious district of pcb board is preferably two.
Above-mentioned pad is convenient to detect and is got final product, and its shape can be for multiple, can be for being of a size of the square of 1mm * 1mm.
The pad that the present invention adds is to add in the normal manufacturing process of printed board, covering text printout oil at pad also is in normal literal printing process, testing electrical property is to add in the normal test process of pcb board, therefore the present invention additionally increases on the basis of operation not having, and just can effectively detect the literal phenomenon of whether biting.And whether traditional detection has the literal phenomenon of biting need to increase extra operation, has improved cost, and inefficiency.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Accompanying drawing is the pcb board structural representation that the present invention increases pad.
Embodiment
The pcb board 1 of the present invention character detecting method of biting at first is to add pad: when making pcb board 1, line layer in pcb board 1 spacious district (not affecting the electric property district) additionally arranges plural pad 2, connect by wire 3 respectively between the described pad 2, namely all connect by wire 3 between any two pads 2.
In order to simplify the operation that pad 2 additionally is set, two pad 2(of operated by rotary motion are as shown in drawings on the line layer in pcb board 1 spacious district) can guarantee just that the present invention detects smoothly and carry out.
In addition, there is no specific (special) requirements for shape the inventive method of pad 2, circular, square etc. all can, as long as can satisfy the test of the inventive method.It is suitable that pad 2 sizes should arrange, and when for example pad 2 is square (as shown in drawings), it is of a size of 1mm * 1mm, and conductor width is 0.2mm between the pad 2 accordingly.
When pcb board 1 is carried out text printout, use text printout oil 4 that above-mentioned pad 2 is covered.The text printout oil 4 general thermosetting literal white oils of commonly using that adopt get final product.Text printout oil 4 covers above-mentioned pad 2 and gets final product, can not be less than pad 2, should not too greater than pad 2 waste materials, generally exceed pad 2 limit 0.2mm and get final product.
When making test network, two place's pads 2 are designed to open circuit.This two places pad 2 namely is following two pads 2 as test point.
At last, pcb board 1 is being carried out in the testing electrical property process, any two pads 2 of above-mentioned covering text printout oil 4 as test point (if above-mentioned when two pads 2 are set, test point can only be these two pads 2), are tested the conducting situation between two pads 2.
If above-mentioned two pads, 2 test short circuits as test point then detect pcb board 1 literal of biting; Otherwise, then detect pcb board 1 literal of not biting.Here be to take full advantage of text printout oil 4(such as white oil) insulativity, therefore through can the conducting short circuit between 1 liang of test point of pcb board of text printout operation, on the contrary short circuit.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (3)
1. pcb board character detecting method of biting is characterized in that may further comprise the steps:
When 1) making pcb board (1), the line layer in the spacious district of pcb board (1) additionally arranges plural pad (2), connects by wire (3) respectively between the described pad (2);
2) when pcb board (1) is carried out text printout, use text printout oil (4) that above-mentioned pad (2) is covered;
3) pcb board (1) is carried out in the testing electrical property process, any two pads (2) of above-mentioned covering text printout oil (4) as test point, are tested the conducting situation between two pads (2);
4) above-mentioned two pads (2) as test point are if the test short circuit then detects pcb board (1) literal of biting; Otherwise, then detect pcb board (1) literal of not biting.
2. the pcb board according to claim 1 character detecting method of biting, it is characterized in that: in step 1), the extra pad (2) that arranges of the line layer in the spacious district of pcb board (1) is two.
3. the pcb board according to claim 1 and 2 character detecting method of biting, it is characterized in that: described pad (2) is square, and it is of a size of 1mm * 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105481032A CN103033737A (en) | 2012-12-17 | 2012-12-17 | Printed circuit board (PCB) through printing character detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105481032A CN103033737A (en) | 2012-12-17 | 2012-12-17 | Printed circuit board (PCB) through printing character detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103033737A true CN103033737A (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105481032A Pending CN103033737A (en) | 2012-12-17 | 2012-12-17 | Printed circuit board (PCB) through printing character detecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103033737A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793473A (en) * | 2017-01-20 | 2017-05-31 | 胜宏科技（惠州）股份有限公司 | A kind of skip printing of characters fool proof tests design method of points |
| CN107215113A (en) * | 2017-05-16 | 2017-09-29 | 胜宏科技（惠州）股份有限公司 | A kind of preparation method for laser carving bar code word white oil block |
| CN108957291A (en) * | 2018-07-09 | 2018-12-07 | 湖北金禄科技有限公司 | A kind of detection method of PCB leakproof lettering symbol |
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| KR100801899B1 (en) * | 2007-01-02 | 2008-02-12 | 삼성전기주식회사 | Testing method for printed circuit board |
| JP2010210303A (en) * | 2009-03-09 | 2010-09-24 | Renesas Electronics Corp | Continuity testing apparatus and continuity testing method |
| CN202085396U (en) * | 2011-05-13 | 2011-12-21 | 福州瑞华印制线路板有限公司 | Carbon film plate with foolproof structures |
| CN102445648A (en) * | 2010-10-13 | 2012-05-09 | 富葵精密组件(深圳)有限公司 | Method for detecting skip printing of characters of circuit board |
| CN202335066U (en) * | 2011-11-14 | 2012-07-11 | 北大方正集团有限公司 | Printed circuit board |
| CN202374564U (en) * | 2011-12-28 | 2012-08-08 | 胜华电子（惠阳）有限公司 | Character skip printing inspection module of circuit board |
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2012
- 2012-12-17 CN CN2012105481032A patent/CN103033737A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100801899B1 (en) * | 2007-01-02 | 2008-02-12 | 삼성전기주식회사 | Testing method for printed circuit board |
| JP2010210303A (en) * | 2009-03-09 | 2010-09-24 | Renesas Electronics Corp | Continuity testing apparatus and continuity testing method |
| CN102445648A (en) * | 2010-10-13 | 2012-05-09 | 富葵精密组件(深圳)有限公司 | Method for detecting skip printing of characters of circuit board |
| CN202085396U (en) * | 2011-05-13 | 2011-12-21 | 福州瑞华印制线路板有限公司 | Carbon film plate with foolproof structures |
| CN202335066U (en) * | 2011-11-14 | 2012-07-11 | 北大方正集团有限公司 | Printed circuit board |
| CN202374564U (en) * | 2011-12-28 | 2012-08-08 | 胜华电子（惠阳）有限公司 | Character skip printing inspection module of circuit board |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793473A (en) * | 2017-01-20 | 2017-05-31 | 胜宏科技（惠州）股份有限公司 | A kind of skip printing of characters fool proof tests design method of points |
| CN106793473B (en) * | 2017-01-20 | 2019-07-02 | 胜宏科技（惠州）股份有限公司 | A kind of skip printing of characters fool proof test design method of points |
| CN107215113A (en) * | 2017-05-16 | 2017-09-29 | 胜宏科技（惠州）股份有限公司 | A kind of preparation method for laser carving bar code word white oil block |
| CN108957291A (en) * | 2018-07-09 | 2018-12-07 | 湖北金禄科技有限公司 | A kind of detection method of PCB leakproof lettering symbol |
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Application publication date: 20130410 |