CN1164028A - Apparatus and method for measuring PC board - Google Patents
Apparatus and method for measuring PC board Download PDFInfo
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- CN1164028A CN1164028A CN 96107432 CN96107432A CN1164028A CN 1164028 A CN1164028 A CN 1164028A CN 96107432 CN96107432 CN 96107432 CN 96107432 A CN96107432 A CN 96107432A CN 1164028 A CN1164028 A CN 1164028A
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- circuit board
- printed circuit
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A device and method for testing PCB includes creating of the wiring data on PCB to be tested, in-line measuring to obtain the state data about poor connections, displaying the relative positions of poor connections precisely, and providing a simple man-machine interface for quickly mastering the positions of poor connections, error elements and absent elements on PCB to shorten troubleshooting period.
Description
The present invention relates to a kind of proving installation and method that is used for printed circuit board (PCB), especially for the proving installation and the method that detect bad contact (solder joint), wrong part or Short Item on the host computer circuit board.
Along with the continuous development of information, the demand of computer heightens, and after the industrial upgrading in Taiwan, relevant integrated circuit, the manufacturing of motherboard occupy certain proportion in the international market.Why the printed circuit board (PCB) industry has present prosperity scene, mainly be with product orientation on the relevant field of PC, produce motherboard, monitor, drafting card, switched power supplier, networking card, image scanner etc. all to need to use printed circuit board (PCB) no matter be.Wherein, motherboard is the upstream industry of PC industry, is one of spare part of PC most critical, except that continuing to grow up year after year, and created the world market occupation rate up to 80% status.
In whole electronics industry design automation (EDA) system (PADS for example, P-CAD, or CAD etc.), no matter the circuit characteristic simulation system at initial stage, the printed circuit board (PCB) CAD (computer aided design) (PCB layout design) that circuit is specialized all are widely adopted.Wherein, general wiring system Netlist mode reads in the wiring diagram in the scheme and convert to and connects the mouse line, and wiring system connects the mouse line through these and becomes cabling (track) and finish installation work.Therefore, the installation work of complicated printed circuit board (PCB) is all finished by wiring system.And computer motherboard designs printed circuit board (PCB) and relevant spare part according to different functions, comprises resistance, electric capacity, inductance, integrated circuit (IC), transistor, diode, expansion slot, switch etc. and welds together.So computer motherboard also must be finished wiring by wiring system because of complicated installation work is arranged.
Generally the simulation system Aided Design of being finished by computer mostly has the fast circuit checking tool, but for the on-line testing of the computer motherboard that welds various spare part, then be need time-consuming.Especially, the progress of the manufacturing technology of relevant spare part and various IC, its volume is more and more little, make the also difficulty relatively of detection of bad solder joint on the printed circuit board (PCB), and the pin of SMD IC open circuit is the headache problem of electronics industry always for a long time, therefore, need a kind of proving installation and method to detect the accurate position of bad contact on the printed circuit board (PCB), this measure will improve the efficient of printed circuit board test greatly.
Present printed circuit board (PCB) on-line testing machine all is automatic testing equipments, it cooperates with computer can be at various mistakes on the printed circuit board (PCB), for example open circuit, short circuit, incorrect part etc. are detected, the support that its robotization tool formula is made provides debugging information, yet, for the part of being refused in the test or the position of bad contact, only can demonstrate the regional extent of summary on the computer video screen, and can not accurately point out the tram of this part on printed circuit board (PCB).In detail, as shown in Figure 1, the mode that known video screen shows, it is the checkerboard type zone that printed circuit board (PCB) is drawn as several rows and row, process and bad contact or wrong part are presented at certain piece zone of chessboard after testing, for example, have in the A1 zone in 100 ohm of resistance and 10K ohm, the B2 zone electric capacity 100PF and 1000PF are arranged, find out in addition debug of tram in should the zone by the maintainer is corresponding on printed circuit board (PCB) again.Because in this zone on the checkerboard type area relative printed circuit board (PCB) of programming, part or contactor density are high more, to make the maintainer will spend more time to find out the bad position place more, especially the demonstration of short-circuit condition only indicates the Copper Foil of two mutual short circuits, therefore, the maintainer will seek the short circuit place in tiny Copper Foil line, it is very careful, careful to need, and has deepened staff's fatigue virtually, and the shadow that gets off for a long time is to work efficiency.Thereby known proving installation and method do not possess accuracy and rapid property, and the necessity of improvement is really arranged.
Printed circuit board test fixture of the present invention and method, the error information data and the printed circuit board (PCB) to be measured that produce in conjunction with online test machine are the device fabrication data by the wiring data that CAD (computer aided design) produces, wherein, wiring data comprises all spare parts, IC numbering data and the part pin coordinate data of printed circuit board (PCB) to be measured, and the part pin figure that printed circuit board (PCB) is all directly is presented on the screen of test macro, and test result is that bad test point or part sign are on part pin figure as shown on screen in the handle assembly fabrication data simultaneously.Therefore, the maintainer has saved the time of imperfect repair product by just finding the bad place of tested printed circuit board (PCB) rapidly on the screen.
Printed circuit board test fixture of the present invention and method, its purpose are to provide the display message of bad contact or a wrong part on printed circuit board (PCB), Short Item state, make the maintainer can grasp bad place rapidly.
Another object of the present invention is to provide a simple and easy man-machine interface, make the maintainer needn't pass through the procedural training of system complex operation, and can finish service work rapidly directly by the information on the screen.
The checkerboard type location drawing of Fig. 1 for showing on the known on-line testing machine.
Fig. 2 is the calcspar of printed circuit board test fixture of the present invention.
Fig. 3 is the specific embodiment of one of shown part pin figure of screen in the printed circuit board test fixture of the present invention.
According to the present invention, a kind of printed circuit board test fixture is provided, this device comprises:
Store the memory storage 1 of the database that wiring data that printed circuit board (PCB) to be measured produces by CAD (computer aided design) forms;
On-line testing tool device 2;
The computer apparatus 3 of energy reading database and on-line testing data that instrument produces;
The display device 4 that shows the contact constitutional diagram.
With reference to figure 2, this figure is the calcspar of printed circuit board test fixture of the present invention.Printed circuit board (PCB) to be measured utilizes CAD (computer aided design) (CAD) to finish installation work, and the wiring data of its generation comprises the spare part on the printed circuit board (PCB) to be measured at least and integrated circuit is numbered and the data of part pin coordinate.Therefore, database 1 is made up of this wiring data.Continuation is with reference to figure 2, and on-line testing instrument 2 comprises automatic testing equipment 21 and system's tool formula 22 usually.After printed circuit board (PCB) (not shown) to be measured is in test position, can detect the situation or the wrong part of bad contact on this printed circuit board (PCB) by automatic testing equipment 21, system's tool formula 22 can produce these bad contact parts or wrong part numbering data, seeing through computer apparatus 3 binding data storehouses 1 is the device fabrication data with the numbering data, and directly the contact state is presented on the display device 4.
According to printed circuit board test fixture of the present invention, the wiring data that CAD (computer aided design) produced that possesses printed circuit board (PCB) to be measured, these data comprise the contact seat cursor position on all circuit boards at least, therefore can according to these data will this P.e.c. electroplax to be measured on the relative position of all contacts be presented on the display device 4, please referring to Fig. 3.The maintainer is when inspection printed circuit board (PCB) to be measured, and what faced no longer is the zone of checkerboard type, but the accurate relational coordinate position of all contacts, the so place that just can grasp this plate bad contact or wrong part rapidly.
Please refer to Fig. 3, this illustrates the contact constitutional diagram of one of most preferred embodiment of the present invention.The state that can " page or leaf " switching (page) shows various bad contacts.Every page is base map with all contact relational coordinate positions of this printed circuit board (PCB) to be measured all.To see through the wiring data formation device fabrication data that computer apparatus 3 cooperates database from the bad contact or the wrong part numbering data of on-line testing tool device 2 gained again, and find out the position of these bad contacts, be shown on the relative position of these points among the figure, for example, the contact of numbering D12 is short circuit.
The invention provides a kind of printed circuit board test method, this method comprises:
1. set up the database that printed circuit board (PCB) to be measured is made up of the wiring data of CAD (computer aided design) generation;
2. the numbering data of bad contact, Short Item or the wrong part that receives online testing tool and produced;
3. according to the device fabrication data of wiring database and bad contact, Short Item or wrong part numbering data composition, the bad contact state is shown as contact state displayed map.
According to printed circuit board test method of the present invention, display device 4 is at the page or leaf that shows the contact open line state, sees through computer apparatus 3 and can be directly from install fabrication data the spare part that records or the circuit-opening contacts of IC pin be presented at (referring to Fig. 3) in the contact constitutional diagram in (for example in the symbol of this some demonstration " the X ") mode of marking.The page or leaf that shows the contact short-circuit condition, similarly, the contact with recording on these Copper Foils of short circuit is presented in the contact constitutional diagram with different marks.On the figure by the contact of being marked all be short circuit together, but form by the contact on the different Copper Foils, so when showing contact, the contact of same Copper Foil can be represented with a kind of mark and is chained together, and these contacts are defined as one " group ", so, can set about at contact located adjacent one another between two groups when seeking short circuit, just can find the shunt contact place very soon.
As for defective modes such as wrong part, Short Items, after the detection through on-line testing instrument 2, also can directly these contacts be numbered with spare part or IC and be presented in the contact constitutional diagram.
Printed circuit board test fixture of the present invention and method can greatly be raised the efficiency for the product test line, make the maintainer face easy man-machine interface, can grasp mistake debug in addition rapidly.Though most preferred embodiment of the present invention more than has been described, only otherwise break away from the scope and spirit of the present patent application claim, still can have done many-sided change.
Claims (10)
1. printed circuit board test fixture can directly show the tram of printed circuit board (PCB) undesirable condition contact to be measured to it is characterized in that comprising:
One memory storage is used for storing the database that printed circuit board (PCB) to be measured is made up of the wiring data of CAD (computer aided design) generation;
One on-line testing tool device is used to produce the data of undesirable condition contact on the above-mentioned printed circuit board (PCB) to be measured;
One computer apparatus is used for the reading device fabrication data;
One display device is used for showing the contact constitutional diagram of above-mentioned printed circuit board (PCB) to be measured.
2. printed circuit board test fixture as claimed in claim 1 is characterized in that, described device fabrication data comprises all spare parts, IC numbering and the spare part pin contact coordinate data on the described printed circuit board (PCB) to be measured at least.
3. printed circuit board test fixture as claimed in claim 1 is characterized in that, the undesirable condition contact data that described on-line testing instrument is produced comprise that at least part, the IC on described those contacts numbers data.
4. printed circuit board test fixture as claimed in claim 1 is characterized in that, described device fabrication data, and the undesirable condition contact data that produced by wiring data in the described database and described on-line testing are formed.
5. printed circuit board test fixture as claimed in claim 1 is characterized in that, described display device shows the contact constitutional diagram of various undesirable condition contacts with the form of " page or leaf ".
6. as claim 1 or 5 described P.e.c. circuit board testing devices, it is characterized in that described contact constitutional diagram is formed according to the contact coordinate of the described wiring data of described printed circuit board (PCB) to be measured.
7. printed circuit board test fixture as claimed in claim 5, it is characterized in that, the described contact constitutional diagram of each " page or leaf " is at least a defective mode, and according to described device fabrication data, directly marking is represented on those connecting point positions of described contact constitutional diagram.
8. the method for a printed circuit board test can directly be found out the tram of printed circuit board (PCB) undesirable condition contact to be measured, it is characterized in that comprising:
Set up the database that printed circuit board (PCB) to be measured is made up of the wiring data of CAD (computer aided design) generation;
Receive the numbering data of bad contact, Short Item or wrong part that online testing tool produces;
Device fabrication data according to bad contact, Short Item or the wrong part numbering data of wiring database and on-line testing generation are formed is presented at the bad contact state on the contact state displayed map.
9. the method for printed circuit board test as claimed in claim 8 is characterized in that, described device fabrication data comprises the contact coordinate data of spare parts all on the described printed circuit board (PCB) to be measured, IC numbering and spare part pin at least.
10. the method for printed circuit board test as claimed in claim 8 is characterized in that, the undesirable condition contact data that described on-line testing instrument is produced comprise that at least part, the IC on described those contacts numbers data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96107432 CN1164028A (en) | 1996-05-01 | 1996-05-01 | Apparatus and method for measuring PC board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96107432 CN1164028A (en) | 1996-05-01 | 1996-05-01 | Apparatus and method for measuring PC board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1164028A true CN1164028A (en) | 1997-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96107432 Pending CN1164028A (en) | 1996-05-01 | 1996-05-01 | Apparatus and method for measuring PC board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164028A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006017980A1 (en) * | 2004-08-18 | 2006-02-23 | Huawei Technologies Co., Ltd. | A test device for evaluating the reliability of the connection |
| CN100442267C (en) * | 2002-01-22 | 2008-12-10 | 三菱重工业株式会社 | Nuclear emergency measure system and nuclear emergency measure training system |
| CN102116826A (en) * | 2009-12-30 | 2011-07-06 | 鸿富锦精密工业（深圳）有限公司 | System and method for measuring voltage of pin of electronic component |
| CN101408582B (en) * | 2008-11-24 | 2011-07-20 | 浙江中控技术股份有限公司 | Method and apparatus for testing circuit board |
| CN101593903B (en) * | 2009-06-17 | 2011-09-21 | 中兴通讯股份有限公司 | Test backboard, backboard-based loading method and backboard-based testing method |
| CN102236058A (en) * | 2010-04-27 | 2011-11-09 | 佛山市顺德区顺达电脑厂有限公司 | Method for analyzing data of electrical test result of mainboard |
| CN102338854A (en) * | 2010-07-27 | 2012-02-01 | 迈普通信技术股份有限公司 | Circuit board test case generation system and method thereof |
| CN105203897A (en) * | 2014-06-23 | 2015-12-30 | 展讯通信（上海）有限公司 | Method for detecting short-circuited device on circuit board |
| CN109540268A (en) * | 2018-12-18 | 2019-03-29 | 成都前锋电子仪器有限责任公司 | A kind of detection method of intelligent gas meter mainboard that capableing of auto-initiation |
-
1996
- 1996-05-01 CN CN 96107432 patent/CN1164028A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442267C (en) * | 2002-01-22 | 2008-12-10 | 三菱重工业株式会社 | Nuclear emergency measure system and nuclear emergency measure training system |
| WO2006017980A1 (en) * | 2004-08-18 | 2006-02-23 | Huawei Technologies Co., Ltd. | A test device for evaluating the reliability of the connection |
| CN1323432C (en) * | 2004-08-18 | 2007-06-27 | 华为技术有限公司 | Testing device for interconnection dependability estimation |
| CN101408582B (en) * | 2008-11-24 | 2011-07-20 | 浙江中控技术股份有限公司 | Method and apparatus for testing circuit board |
| CN101593903B (en) * | 2009-06-17 | 2011-09-21 | 中兴通讯股份有限公司 | Test backboard, backboard-based loading method and backboard-based testing method |
| CN102116826A (en) * | 2009-12-30 | 2011-07-06 | 鸿富锦精密工业（深圳）有限公司 | System and method for measuring voltage of pin of electronic component |
| CN102236058A (en) * | 2010-04-27 | 2011-11-09 | 佛山市顺德区顺达电脑厂有限公司 | Method for analyzing data of electrical test result of mainboard |
| CN102338854A (en) * | 2010-07-27 | 2012-02-01 | 迈普通信技术股份有限公司 | Circuit board test case generation system and method thereof |
| CN102338854B (en) * | 2010-07-27 | 2015-04-15 | 迈普通信技术股份有限公司 | Circuit board test case generation system and method thereof |
| CN105203897A (en) * | 2014-06-23 | 2015-12-30 | 展讯通信（上海）有限公司 | Method for detecting short-circuited device on circuit board |
| CN109540268A (en) * | 2018-12-18 | 2019-03-29 | 成都前锋电子仪器有限责任公司 | A kind of detection method of intelligent gas meter mainboard that capableing of auto-initiation |
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