CN102818982B - Fool-proof method for grouping tests - Google Patents
Fool-proof method for grouping tests Download PDFInfo
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- CN102818982B CN102818982B CN201210073888.2A CN201210073888A CN102818982B CN 102818982 B CN102818982 B CN 102818982B CN 201210073888 A CN201210073888 A CN 201210073888A CN 102818982 B CN102818982 B CN 102818982B
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Abstract
The invention relates to a fool-proof method for grouping tests. The fool-proof method includes marking a group of fool-proof icons with different numbers at corresponding positions of each printed circuit board (PCB) on a v-cut board, wherein fool-proof icons in each group are mutually communicated; dividing the PCB on the v-cut board into a plurality of blocks which are identical or different; producing a test fixture, wherein a group of test pins is arranged at a position corresponding to each group of fool-proof icons of each PCB on the test fixture, and the amount of each test pins is equal to that of the most fool-proof icons on the v-cut board; and selecting a test program, when communication and insulation relations of the test pins are in one to one correspondence to those among fool-proof icons at corresponding positions on the PCB, the PCB can pass the test, and otherwise, the PCB cannot pass the test. According to the fool-proof method, fool-proofing of the tested PCB is completed through the electric relations among fool-proof icons, on one hand, cost increase due to upgrade and expansion of machine stations can be avoided, and on the other hand, test efficiency can be improved through the grouping tests.
Description
Technical field
the present invention relates to wiring board field tests, particularly relate to a kind of grouping test foolproof method.
Background technology
at present, for undersized wiring board, part client, for promoting upper part efficiency, starts design many in flakes, even dry plate wiring board design on a plank (its quantity can reach 18 or 20 in flakes more than).This designs concerning In-Plant Test board, may exceed on the one hand the power of test (exceed board maximum allow count) of tester table, the capacity of need to upgrading again; On the other hand, many because counting, test machine reaction is slow, affects testing efficiency, for this problem, needs to adopt grouping test to solve.As shown in Figure 1:, can be divided into 3 groups and test 18 in flakes as example taking below, but how ensure security, reliability and the stability of test, this has just proposed further requirement to the method for fool proof.
Summary of the invention
the object of the invention is to provide a kind of grouping test foolproof method.
for achieving the above object, the technical solution used in the present invention is:
a kind of grouping test foolproof method, the fool proof of the method during for board test in flakes, this is designed with some wiring boards on plate in flakes, and the method comprises the following steps:
(1), on plate in flakes one group of fool proof icon of the different numbers of correspondence position mark of each wiring board, each fool proof icon mutual conduction in every group;
(2), the wiring board on plate is in flakes divided into identical or different multiple chunks;
(3), make a set of measurement jig for the wiring board of identical chunk: on measurement jig, the position of every group of fool proof icon of corresponding each wiring board is provided with one group of testing needle, and every group of testing needle is equal in number in the quantity that goes up in flakes maximum fool proof icons;
(4), select test procedure, the quantity of test procedure is consistent with the quantity of chunk;
conducting when between the fool proof icon of selecting correspondence position on the conducting of testing needle and insulation relation and wiring board in test procedure and insulation relation are one by one at once, and wiring board can be by test; When the conducting between the fool proof icon of selecting the conducting of testing needle and insulation relation and correspondence position on wiring board in test procedure and insulation relation be not when corresponding, wiring board can not be by test.
preferably, in step (1), wiring board is numbered successively, is numbered positive integer, the fool proof icon number of the correspondence position of each wiring board is consistent with the numbering number of this wiring board.
preferably, between each fool proof icon, be conducted by wire.
preferably, fool proof iconic marker is on the copper face of a conducting, and quantity and the position of every group of fool proof icon are identical, according to conducting and insulation relation when group fool proof icon, covers dielectric ink in the fool proof icon surface of insulation relation.
preferably, fool proof iconic marker is on the discarded rim charge of plate in flakes.
because technique scheme is used, the present invention compared with prior art has following advantages and effect:
the present invention completes the fool proof to measurement circuit plate by the electrical relation between fool proof icon, can avoid board upgrade expanding additionally to increase cost on the one hand; Also test by grouping on the other hand, promoted the efficiency of test.
Brief description of the drawings
accompanying drawing 1 is 18 grouping schematic diagram in flakes;
accompanying drawing 2 is 18 part mark fool proof icon schematic diagram in flakes;
the mark fool proof icon schematic diagram that accompanying drawing 3 is measurement jig;
accompanying drawing 4 is measurement jig usage flag fool proof icon schematic diagram;
accompanying drawing 5 is 20 grouping schematic diagram in flakes.
Embodiment
below in conjunction with drawings and Examples, the invention will be further described:
now taking 18 in flakes as example:
wiring board to 18 in is in flakes numbered successively, is numbered 1,2,3 ... 18 positive integer; The wiring board that completes numbering is divided into groups, be divided into into three groups in the present embodiment, every group has 6 wiring boards, as shown in Figure 1;
on the break edge of plate (going up the rim charge of waste gas after part), designing fool proof icon (PAD) in flakes, as shown in Figure 2: number with it the consistent fool proof icon (PAD) of number at each wiring board correspondence position mark, now taking square fool proof icon (PAD) as example, from 1 mark to a 18 fool proof icon (PAD), and the corresponding fool proof icon (PAD) of each wiring board designs at same position: if the 1st the fool proof icon (PAD) of 1 fool proof icon (PAD) of the 1st wiring board and the 2nd wiring board is at same position; 2 fool proof icons (PAD) of the 2nd wiring board and front 2 fool proof icons (PAD) of the 3rd wiring board are at same position, the like, until 17 fool proof icons (PAD) of the 17th wiring board and front 17 fool proof icons (PAD) of the 18th wiring board are all at same position, can guarantee like this consistance of fool proof icon (PAD) position, to adapt to general measurement jig;
between the fool proof icon (PAD) of corresponding line plate, be designed to conducting, this design can be adopted in two ways:
first kind of way: be conducted by wire between each fool proof icon (PAD);
the second way: all fool proof icons (PAD) all design the copper face a conducting, quantity and the mark position of all fool proof icons (PAD) are all identical, according to the numbering of wiring board, the fool proof icon (PAD) that belongs to wiring board numbering does not cover dielectric ink, and the copper face that does not belong to the required fool proof icon (PAD) of this group covers dielectric ink.Therefore the electrical pass, not covering between the fool proof icon (PAD) of dielectric ink is conducting.
make supporting measurement jig according to the situation of grouping, identical group shares same measurement jig: in the present embodiment, on measurement jig, the fool proof figure of corresponding each wiring board (PAD) is provided with testing needle, the quantity of testing needle equals to go up in flakes the quantity of maximum fool proof icons (PAD), 18, as shown in Figure 3, and the fool proof icon (PAD) on plate can find the testing needle of answering in contrast on measurement jig in flakes, this has also ensured that measurement jig can complete the test to it for different wiring board on the same group;
select the program of measurement jig, to go up in flakes first group of wiring board as example, wiring board is numbered: 1,2,3,16,17,18, its fool proof icon (PAD) number is respectively: 1,2,3,16,17,18, as shown in Figure 4, in test procedure, be numbered 1 the electrical relation of wiring board: the 1st fool proof icon (PAD) and to cover between 17 the fool proof icons (PAD) under dielectric ink be insulation relation, and be also insulation relation between these 17 fool proof icons (PAD) itself, be numbered 2 the electrical relation of wiring board: between the 1st and the 2nd fool proof icon (PAD), be conducting relation, and covering between 16 the fool proof icons (PAD) under dielectric ink is insulation relation, and between these 16 fool proof icons (PAD) itself, be also insulation relation, the like, label is 18 wiring board, it between 18 fool proof icons (PAD), is conducting relation, the conducting of conducting and the insulation relation fool proof icon (PAD) corresponding with actual track plate and insulation relationship consistency in test procedure like this, wiring board can be by test, and when selecting the program of surveying first group of wiring board to remove to test second group of wiring board, fool proof icon (PAD) number of second group of wiring board is respectively: 4, 5, 6, 13, 14, 15, as be numbered 4 the electrical relation of wiring board: the 1st, 2, 3, it between 4 fool proof icons (PAD), is conducting relation, and covering between 14 the fool proof icons (PAD) under dielectric ink is insulation relation, and between these 14 fool proof icons (PAD) itself, be also insulation relation, the conducting of test procedure and wiring board and insulation relation occur inconsistent, now, measurement jig can not be tested second group of wiring board, must select and second group of program matching.
in sum, tester, by transferring certain group program test, tests rear personnel and indicates on corresponding wiring board, represents that certain group is completed, accurately distinguishing tests and the part of not testing.
certainly, 20 in flakes if, according to testing requirement, may divide into groups 4 groups, and as shown in Figure 5, according to following grouping, testing mould need be prepared 2 groups, tests 6 small pieces for one group, tests 2 small pieces for one group, and the method for grouping is not limited only to this certainly.
in the application, the electrical relation of indication all instructs logical and insulation relation.
above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a grouping test foolproof method, the fool proof of the method during for board test in flakes, this is designed with some wiring boards on plate in flakes, it is characterized in that: the method comprises the following steps:
(1), on plate in flakes one group of fool proof icon of the different numbers of correspondence position mark of each wiring board, each fool proof icon mutual conduction in every group;
(2), the wiring board on plate is in flakes divided into identical or different multiple chunks;
(3), make a set of measurement jig for the wiring board of identical chunk: on measurement jig, the position of every group of fool proof icon of corresponding each wiring board is provided with one group of testing needle, and every group of testing needle is equal in number in the quantity that goes up in flakes maximum fool proof icons;
(4), select test procedure, the quantity of test procedure is consistent with the quantity of chunk;
Conducting when between the fool proof icon of selecting correspondence position on the conducting of testing needle and insulation relation and wiring board in test procedure and insulation relation are one by one at once, and wiring board can be by test; When the conducting between the fool proof icon of selecting the conducting of testing needle and insulation relation and correspondence position on wiring board in test procedure and insulation relation be not when corresponding, wiring board can not be by test.
2. a kind of grouping test foolproof method according to claim 1, it is characterized in that: in step (1), wiring board is numbered successively, is numbered positive integer, the fool proof icon number of the correspondence position of each wiring board is consistent with the numbering number of this wiring board.
3. a kind of grouping test foolproof method according to claim 1, is characterized in that: between each fool proof icon, be conducted by wire.
4. a kind of grouping test foolproof method according to claim 1, it is characterized in that: fool proof iconic marker is on the copper face of a conducting, quantity and the mark position of every group of fool proof icon are identical, according to when required conducting and the insulation relation of group fool proof icon, cover dielectric ink in the fool proof icon surface of insulation relation.
5. a kind of grouping test foolproof method according to claim 1, is characterized in that: fool proof iconic marker is on the discarded rim charge of plate in flakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210073888.2A CN102818982B (en) | 2012-03-20 | 2012-03-20 | Fool-proof method for grouping tests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210073888.2A CN102818982B (en) | 2012-03-20 | 2012-03-20 | Fool-proof method for grouping tests |
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| Publication Number | Publication Date |
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| CN102818982A CN102818982A (en) | 2012-12-12 |
| CN102818982B true CN102818982B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210073888.2A Active CN102818982B (en) | 2012-03-20 | 2012-03-20 | Fool-proof method for grouping tests |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422846A (en) * | 2013-09-02 | 2015-03-18 | 北大方正集团有限公司 | Circuit board testing device and method |
| CN112584601B (en) * | 2019-09-27 | 2022-07-01 | 深南电路股份有限公司 | Circuit board, fool-proof method thereof and electronic device |
| CN112488254B (en) * | 2020-11-02 | 2024-07-02 | 昆山丘钛生物识别科技有限公司 | Fool-proof test machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4417204A (en) * | 1980-04-03 | 1983-11-22 | Luther & Maelzer Gmbh | Printed circuit board tester and adapter with memory |
| WO2002031516A1 (en) * | 2000-10-04 | 2002-04-18 | Atg Test Systems Gmbh & Co. Kg | Module for a testing device for testing printed circuit boards |
| CN101458297A (en) * | 2007-12-12 | 2009-06-17 | 康佳集团股份有限公司 | Printed circuit board test system and test method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6792365B2 (en) * | 2001-08-10 | 2004-09-14 | Micron Technology, Inc. | Sequential unique marking |
| DE10326086B4 (en) * | 2003-06-10 | 2006-04-13 | Infineon Technologies Ag | Method and alignment marks for positioning a measuring head on a printed circuit board |
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2012
- 2012-03-20 CN CN201210073888.2A patent/CN102818982B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4417204A (en) * | 1980-04-03 | 1983-11-22 | Luther & Maelzer Gmbh | Printed circuit board tester and adapter with memory |
| WO2002031516A1 (en) * | 2000-10-04 | 2002-04-18 | Atg Test Systems Gmbh & Co. Kg | Module for a testing device for testing printed circuit boards |
| CN101458297A (en) * | 2007-12-12 | 2009-06-17 | 康佳集团股份有限公司 | Printed circuit board test system and test method |
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| CN102818982A (en) | 2012-12-12 |
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