CN100585415C - Device and method for electrically inspecting printed circuit board - Google Patents
Device and method for electrically inspecting printed circuit board Download PDFInfo
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- CN100585415C CN100585415C CN200610084557A CN200610084557A CN100585415C CN 100585415 C CN100585415 C CN 100585415C CN 200610084557 A CN200610084557 A CN 200610084557A CN 200610084557 A CN200610084557 A CN 200610084557A CN 100585415 C CN100585415 C CN 100585415C
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- base plate
- probe
- printed base
- pressing force
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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]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
- H05K1/0268—Marks, test patterns or identification means for electrical inspection or testing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to an electricity inspection apparatus which is installed on a printed circuit board and performs the electricity inspection of the printed circuit board by a supporting element and a driving mechanism. The supporting element detachablely supports the mounting element for inspection probes. The driving mechanism make the inspection probes contact with the printed circuit board according to a given pressing force by allowing the mounting element to advance and retreat with respect to the printed circuit board. The pressing force applied by the inspection probes, when the inspection probes contacts with the printed circuit board, serves as counterforce of the driving mechanism, so as to perform inspection. And the inspection is controlled to drive the driving mechanism based on the inspection value, so that the inspection probes contacts with the printed circuit board according to a given pressing force. The pressing force is calculated based on the physical property of the inspection probes and the number of the inspection probes installed on the mounting element. The inspection probes are controlled to contact with the printed circuit board according to the calculated pressing force. The physical property is any one of the size, material and spring constant of the inspection probes. The pressing force can also be calculated referring to the configuration method of the inspection probes.
Description
Technical field
The present invention relates to detect the electrical device and method that carries out electrical with probe contact print substrate by making.
Background technology
In the past, detect by switching on the distribution of the printed base plate of electrode pattern, to have or not and produce into poor flow defectives (defectiveness) such as (conduction failure) with regulation.For example, Japanese Patent Application Publication communique, spy open disclosed ground flat 6-268034 number, on printed base plate, be provided with by contacting energising with probe and detect the contact that distribution has or not conducting, the electrical Device Testing is contacted with this contact with probe detect with detection.But, in such electrical device, detect with probe and bestow the pressing force generation deviation of the contact on the printed base plate and loose contact may occur, can not carry out high-precision test.
For addressing the above problem, in the electrical device in the past, with detect with probe relative to the position on, at pressing mechanism (driving side) or hold on the platform side (fixation side) pressure transducer is set, control pressing force according to this detected value.Thus, suitably control detection usefulness is popped one's head in to the pressing force of the contact on the printed base plate.
In above-mentioned electrical device, the installation site of pressure transducer also is necessary to change with the probe mounting position according to detecting, and in addition, all want the setting pressure sensor on each predetermined member, thereby installation exercise is loaded down with trivial details.
In addition, in the above-mentioned electrical device, owing to be in case the fixed detection of no-go gage is provided with the viewpoint of the deviation of the pressing force when contact on the printed base plate contacts of popping one's head in, so be replaced with the different probe of physical characteristics with probe or change detect under the situation with the number of probe the distribution that can not suitably keep pressing force will detecting.In addition, above-mentioned electrical device owing to detect pressing force with pressure transducer, is controlled this detected value near setting value when comparing its detected value and setting value, needs long-time so pressing force reaches suitable value.In addition, be provided with in the electrical device of pressure transducer on detecting with the probe mounting parts being equipped with, the situation that also has a plurality of detections together to change with probe and installing component, each installing component need be distinguished sensor installation, makes the rising of electrical cost.
Summary of the invention
The present invention is in view of the above problems and research and development, its purpose be to provide a kind of can be by a plurality of detections be prevented the electrical device and method of the printed base plate of cost rising with probe and the shared structure of installing component employing.
In addition, another object of the present invention is to provide a kind of and calculate pressing force with reference to detecting with parameters such as physical characteristics of popping one's head in and use numbers, and, also can carry out high-precision electrical with suitable state even change to detect with probe and its installing component.
Electrical device of the present invention, it contacts the electrical that above-mentioned printed base plate is carried out in the contact that is arranged on the printed base plate on the setting device by making to detect with probe, it is characterized in that having: installing component, it installs above-mentioned detection with popping one's head in; Support unit, it supports installing component removably; Driving mechanism, it makes detection probe contact print substrate by making installing component with respect to being arranged on the printed base plate advance and retreat that are provided with on the parts; The reacting force sensor, when detecting when contact with printed base plate with probe, its pressing force of bestowing printed base plate with popping one's head in detection is as the reacting force of driving mechanism is detected; Control device, its detected value according to above-mentioned reacting force sensor drives above-mentioned driving mechanism, and control detection is with popping one's head in the pressing force contact print substrate of stipulating.
Above-mentioned reacting force sensor is owing to can be arranged on the outside of driving mechanism, even so will detect according to the purpose of electrical under the situation about together changing with probe and installing component, the reacting force sensor also can still detect the reacting force to driving mechanism like that, and does not need to change the reacting force sensor.In addition, control device can make by suitable controlling and driving mechanism and detect with the contact of probe with appropriate pressing force contact print substrate, and does not cause loose contact, can carry out high-precision electrical.In addition, the reacting force sensor need not to be arranged on and detects with near probe and the installing component, can improve the degree of freedom that it is provided with the position.And then installing component is installed on the support unit removably, and the reacting force sensor also is connected with support unit when changing detection with probe, uses as before so need not remove.
The electrical inspection method of printed base plate of the present invention, it uses by making and supports installation and measuring removably and make to detect with respect to the printed base plate advance and retreat with the support unit of probe mounting parts and installing component and carry out the electrical of printed base plate with popping one's head in the driving mechanism of the pressing force contact print substrate stipulated, it is characterized in that, comprise: the contact operation makes and detects with probe contact print substrate; Reacting force detects operation, and the pressing force of being bestowed when contacting with printed base plate with popping one's head in to detect is as the reacting force of above-mentioned driving mechanism is detected; Pressing force control operation, the detected value that detects the operation detection according to reacting force drives driving mechanism, and control detection contacts above-mentioned printed base plate with probe with the pressing force of stipulating.Thus,, also need not to change the reacting force sensor, electrical inspection method that can inexpensive high-precision ground enforcement printed base plate even change to detect with probe.
According to other viewpoints of the present invention, the electrical device comprises: driving mechanism, and it makes detection probe contact print substrate with the probe mounting parts with respect to the printed base plate advance and retreat that are arranged on the setting device by making installation and measuring; Control device, it is according to the physical characteristics and the detection number of popping one's head in that is installed on the installing component that detect with probe, calculate and detect the pressing force of bestowing printed base plate with probe, and controlling and driving mechanism, so that detect with the pressing force contact print substrate of probe to calculate.
Thus, the detection with desirable physical characteristics also can suitably be calculated pressing force with probe with the regulation number, and detects with probe and can contact with printed base plate with appropriate pressing force.In addition, calculating the employed detection of pressing force can be at least one in size, material and the spring constant of popping one's head in of this detection with the physical characteristics of popping one's head in.And then, also can calculate pressing force with the collocation method of probe with reference to a plurality of detections.For example, detecting the situation of the central portion that is configured in test section mostly with popping one's head in compares with the situation of configuration equably, its pressing force reduces, and the situation of the periphery that detection is configured in test section mostly with popping one's head in is compared with the situation of configuration equably, and its pressing force increases.
Comprise with the electrical inspection method of the corresponding printed base plate of above-mentioned situation: contact operation, it makes detection probe contact print substrate with the probe mounting parts with respect to the printed base plate advance and retreat that are arranged on the setting device by making installation and measuring; Pressing force control operation, it is according to the physical characteristics and the detection number of popping one's head in that is installed on the installing component that detect with probe, calculate and detect the pressing force of bestowing printed base plate with probe, and control makes the pressing force contact print substrate that detects with popping one's head in to calculate.
In the said structure, calculating the employed detection of pressing force can be this detection any in size, material and the spring constant of popping one's head in the physical characteristics of popping one's head in.In addition, also can calculate pressing force with the collocation method of probe with reference to a plurality of detections.And then installing component is installed on the driving mechanism removably by support unit, also has the pressing force bestowed when detecting with probe contact print substrate as the reacting force detection operation that the reacting force of driving mechanism is detected.In the above-mentioned pressing force control operation, the detected value that detects the operation detection according to reacting force drives driving mechanism, and controlling and driving mechanism makes the pressing force contact print substrate that detects with popping one's head in to calculate.
Description of drawings
Fig. 1 is the summary construction diagram of major part of the electrical device of expression suitable embodiment of the present invention;
Fig. 2 is the planimetric map of electrical device;
Fig. 3 is the front view (FV) of electrical device;
Fig. 4 is the enlarged drawing of the relation of the predetermined member that disposes on the part that double dot dash line is surrounded in the presentation graphs 3;
Fig. 5 is the block diagram of the electricapparatus structure of expression electrical device.
Embodiment
The suitable embodiment that present invention will be described in detail with reference to the accompanying.
Fig. 1 is the summary construction diagram of major part of electrical device 10 of the printed base plate of expression suitable embodiment of the present invention.Whether the electrode pattern of being located on the printed base plate 11 (not shown) that electrical device 10 detects as the detected object thing becomes suitable electric conducting state.Electrical device 10 by be used for printed base plate 11 be arranged on the setting device 20 of assigned position, the upper detection device 30 that is provided with movably at the upside of printed base plate 11 and constitute at the bottom pick-up unit 40 that the downside of printed base plate 11 is provided with movably.
Printed base plate 11 is made of the substrate with flexual rectangle, and its table back of the body (being upper and lower sides) two sides maintains predetermined distance and disposes a plurality of contact 11a with the electrode pattern conducting.Setting device 20, upper detection device 30 and bottom pick-up unit 40 form the state that can move respectively by the electricapparatus structure shown in Fig. 2 and 3, and are configured on the base station 12 on prescribed direction.The frame shape is formed at base station 12 its tops, and the both ends, the left and right sides on the top of base station 12 keep predetermined distance and a pair of fixed part 20a, the 20b of the setting device 20 of configuration formation relatively.
Guide rail (rail) 21a that fixed part 20a is provided with by the edge part along the left side (with reference to Fig. 2,3) of base station 12 and can constituting along a pair of handle sturcture 22a that this guide rail 21a move setting.Each handle sturcture 22a comprises: actuator 23a, and it is by constituting along extending the cylinder that is provided with respect to the direction (being the left and right directions of Fig. 2 and 3) of printed base plate 11 advance and retreat; Control parts 24a, it controls or opens printed base plate 11 by the driving of this actuator 23a.
That is, the leading section of respectively controlling parts 24a is made of a pair of claw from the edge part of controlling fixing printing substrate 11 up and down.A pair of handle sturcture 22a can make the space broaden or move along guide rail 21a with narrowing down, can adjust it at interval according to the width of printed base plate 11.In addition, be provided with along the direction vertical with guide rail 21a in the both sides of the fixed part 20a of the upper left-hand of substrate 12 and extend the pair of guide rails 25a that is provided with, fixed part 20a is configured to and can moves along pair of guide rails 25a.Fixed part 20a locatees according to the position that the length of printed base plate 11 is adjusted on the guide rail 25a.
Another fixed part 20b keeps the edge part configuration of predetermined distance along the right side (with reference to Fig. 2,3) of base station 12.Fixed part 20b forms with fixed part 20a left-right symmetric, and constitutes by guide rail 21b with along a pair of handle sturcture 22b of the removable configuration of this guide rail 21b.Each handle sturcture 22b is by actuator 23b and control parts 24b and constitute.A pair of handle sturcture 22b can make the space broaden or move along guide rail 21b with narrowing down, thus according to the width adjustment of printed base plate 11 its at interval.
The both ends of the fixed part 20b of configuration are provided with along the direction vertical with guide rail 21b and extend the pair of guide rails 25b that is provided with on substrate 12, and fixed part 20b is set to and can moves along pair of guide rails 25b.Fixed part 20b carries out location on the left and right directions according to the length of printed base plate 11.
As mentioned above, controlling parts 24a, 24b moves along left and right directions and fore-and-aft direction in Fig. 2 and 3, and location, appropriate location, four bights at printed base plate 11, four bights of its leading section clamping printed base plate 11, and and then by the position of inching left and right directions and fore-and-aft direction slightly, with to the state support of the constant tension force of printed base plate 11 on it.
Near the of the edge part of the fore-and-aft direction on the top of substrate 12 is provided with guide rail 13a, 13b along this edge part respectively.Can be above printed base plate 11 along supporting station 14 location and installation of the last side shifting of pair of guide rails 13a, 13b, this supporting station 14 extends at fore-and-aft direction and is provided with to be erected at state between pair of guide rails 13a, 13b.Upper detection device 30 is installed on the supporting station 14.Supporting station 14 by have with guide rail 13a, 13b extend in parallel setting turning axle 15a driving mechanism 15 and can move along guide rail 13a, 13b left and right directions.That is, upper detection device 30 moves along guide rail 13a, 13b left and right directions with supporting station 14.
In addition, having the track 16a of extension setting on the direction vertical with guide rail 13a, 13b and the driving mechanism 16 of turning axle 16b is installed on the supporting station 14.Upper detection device 30 is installed on this driving mechanism 16 by being installed on the moving part 31 on the driving mechanism 16 movably.That is, upper detection device 30 can move with the length direction of moving part 31 along driving mechanism 16.Moving part 31 is provided with two motor 32.Thus, above-below direction moves upper detection device 30 by the driving of an one motor 32, and is the center rotation with the Z-axis by the driving of another motor 32.
On motor 32, be connected with reacting force sensor 38, thereby detect reacting force the driving force of motor 32.Reacting force sensor 38 when making test section 37 descend, detect leading section with probe 36 contact by the driving of motor 32 with printed base plate 11, the reacting force that the detection that will bestow detection printed base plate 11 is subjected to as motor 32 with 36 the pressing force of popping one's head in and detecting.Reacting force sensor 38 is configured near the control device 50 described later.Above-mentioned moving part 31, support 33, jacking gear 34, support unit 35 and motor 32 constitute driving mechanism of the present invention.
Bottom pick-up unit 40 is installed in can be along on the supporting station 17 of the following side shifting of a pair of guide rail 13a, the 13b that are provided with on the fore-and-aft direction on the top of substrate 14.Supporting station 17 is arranged on the downside of printed base plate 11, by have with pair of guide rails 13a, 13b extend in parallel setting turning axle 18a driving mechanism 18 and move along this guide rail 13a, 13b left and right directions.Therefore, bottom pick-up unit 40 can move along guide rail 13a, 13b left and right directions with supporting station 17.In addition, the driving mechanism 19 of track and turning axle formation also is installed on the supporting station 17.
Bottom pick-up unit 40 is arranged on the moving part 41 that is installed in movably on the driving mechanism 19, can move on the length direction of driving mechanism 19 with this moving part 41.Moving part 41 is provided with two motor 42.That is, above-below direction moves bottom pick-up unit 40 by the driving of a motor 42, is the center rotation by the driving of another motor 42 with the Z-axis simultaneously.
Bottom pick-up unit 40 is installed on the moving part 41 by support unit 43.Be provided with jacking gear 44 on the top of support unit 43, support unit 43 moved at above-below direction by the driving of motor 42.On the top of jacking gear 44 support unit 45 is installed.Detect the top that is installed in support unit 45 with probe 46, installing component 49 and test section 47.Installing component 49 and detection are installed on the test section 47 removably with probe 46.Test section 47 moves at above-below direction by the jacking gear 44 that is driven by motor 42.
Reacting force sensor 48 is set on the motor 42, thereby detects reacting force the driving force of motor 42.Reacting force sensor 48 is when test section 47 is risen, when detecting leading section with probe 46 and contacting with printed base plate 11, the reacting force that the detection that will bestow printed base plate 11 is subjected to as motor 42 with 46 the pressing force of popping one's head in and detecting.Above-mentioned reacting force sensor 38 and 48 be configured in control device 50 near.
Above-mentioned detection is for example formed by the fine material of setting width 0.025mm, thickness 0.02mm, length 1.2mm for probe 36,46.Each detects with probe 36,46 distortion that for example can carry out about 0.2mm.Thus, detect with probe 36,46 easily because of buckling or impacting and damage.In addition, on the electrical device 10, on the basis of various mentioned components and mechanism, also be provided with control device 50, testing circuit 54 and operation board (not shown) with CPU51 shown in Figure 5, ROM 52 and RAM53.
In the control device 50, the ROM52 storage is used to carry out the regulated procedure of conduction detection, and CPU 51 carries out this program.Promptly, by implementing various control actions by CPU 51 executive routines, thereby, suitably controlling and driving mechanism 15,18 and driving mechanism 16,19 and motor 32,42 etc., the result, test section 37,47 moves to assigned position respectively.RAM 53 pressing force shown in the storage list 1 in advance calculates and uses data 53a.Pressing force is calculated the appropriate value that is used to calculate the pressing force of generation when the leading section contact print substrate 11 that detects with probe 36,46 with data 53a and is made.Thus, calculate appropriate pressing force according to the parameter that detects with 36,46 the kind of popping one's head in, number, configuration etc.
Calculate with among the data 53a at the pressing force shown in the table 1, detect with the spring constant of probe 36,46 when being out of shape and be divided into A, B, C three classes.Promptly, A is 10g/2mm, B is 20g/2mm, C is 30g/2mm.The detection of installing respectively on the test section 37,47 about various types of A, B, C, is set 100,150,200 and 500 four patterns with the number of probe 36,46.
About detecting configuration, set Pa, Pb, three patterns of Pc according to distributing with probe 36,46.For example, pattern Pa represents to detect with probe 36, the 46 whole distributions that keep roughly being configured at interval uniformly on the test section 37,47, pattern Pb represents to detect with probe 36,46 and is configured in distribution on the central portion of test section 37,47 mostly, and pattern Pc represents to detect with popping one's head in and 36,46 is configured on the central portion of test section 37,47 on a small quantity and is configured in distribution on the periphery mostly.
Calculate the appropriate value of pressing force according to above-mentioned data, decision produces the necessary motor current value of suitable pressing force.The conducting state that testing circuit 54 detects with the contact 11a of probe 36,46 and printed base plate 11 is exported to control circuit 50 with the signal of its testing result of expression.The aforesaid operations dish is provided with and is used to open the switch of closing electrical device 10 and is used to import operating key of various data etc.
Carry out the conduction detection of printed base plate 11 with electrical device 10 with above-mentioned such structure.At first, input is about the detection of the operating key of the manipulating operation board data with probe 36,46.Secondly, printed base plate 11 is arranged on the setting device 20.At this moment, fixed part 20a, 20b are moved so that a pair of parts 24a that controls is identical with the length of printed base plate 11 with a pair of relative spacing of controlling parts 24b.In addition, a pair of handle sturcture 22a and a pair of handle sturcture 22b are moved so that the width with printed base plate 11 is identical respectively a pair of interval of controlling parts 24a and a pair of interval of controlling parts 24b respectively.By above-mentioned respectively four bights of clamping printed base plate 11 of parts 24a, 24b of controlling, thereby with to the state support of the constant tension force of printed base plate 11 thereon.
Secondly, by driving mechanism 15,16 is driven and drive the motor 32 of moving part 31, thereby make test section 37 move to the top of contact 11a of the regulation of printed base plate 11.In addition, by driving mechanism 18,19 is driven and drive the motor 42 of moving part 41, thereby make test section 47 move to the downside of contact 11a of the regulation of printed base plate 11.And then driving motor 42, test section 47 is risen, detect the contact 11a that moves to the downside of printed base plate 11 with probe 46.Afterwards, driving motor 32 descends test section 37, makes to detect with the contact 11a of probe 36 with the upside of printed base plate 11 to contact.
By above-mentioned action, the detection that is pressed against printed base plate 11 is delivered on the motor 32 by test section 37 with the reacting force of probe 36.Thus, reacting force sensor 38 detects reacting force, and its detection signal is given the RAM 53 of control device 50.CPU 51 carries out data processing according to the program that is stored in ROM 52, calculates the appropriate value of calculating pressing force with data 53a according to above-mentioned pressing force, relatively the detected value of this appropriate value and reacting force sensor 38.In addition, calculate the current value that offers motor 32 in order to produce appropriate pressing force.CPU 51 is by the current value driving motor 32 of calculating, thereby makes by detecting with 36 pressing forces of bestowing on the printed base plate 11 of popping one's head in consistent with the appropriate value of calculating.
Thus, detect with probe 36 and contact with the contact 11a of printed base plate 11 with appropriate pressing force.Under this state, carry out conduction detection by switching on probe 36 by detection.After conduction detection finishes, test section 47 is descended, and test section 37 is risen, return original configuration status.Afterwards, carry out above-mentioned action once more, test section 37 is moved with respect to the next detection position of printed base plate 11 and carry out conduction detection.Do by carrying out such interlock repeatedly, thereby carry out conduction detection about whole part of printed base plate 11.
Using bottom pick-up unit 40 to carry out under the situation of conduction detection of printed base plate 11, making and detect that to bestow the pressing force of printed base plate 11 consistent with the desired value of calculating with popping one's head in 46.That is, test section 37 is descended and make under the contact 11a state of contact that detects with probe 36 and the upside of printed base plate 11, test section 47 is risen, make to detect to contact with the contact 11a of probe 46 with the downside of printed base plate 11.At this moment, detection passes to motor 42 with probe 46 reacting forces of bestowing the pressing force of printed base plate 11 by test section 47.Reacting force sensor 48 detects this reacting force, and this detection signal is given the RAM 53 of control device 50.
Under the situation of the conduction detection of other printed base plates that vary in size, four bights of the printed base plate 11 after detecting are pulled down from controlling parts 24a, 24b, printed base plate 11 is taken out from electrical device 10, other printed base plates are arranged on the setting device 20.Afterwards, carry out aforesaid action, will control that parts 24a, 24b set out at interval and corresponding, position simultaneously with four bights of above-mentioned printed base plate.And then four bights of printed base plate are by controlling parts 24a, 24b clamping, thereby this printed base plate is fixed on assigned position.The conduction detection of this printed base plate is implemented according to above-mentioned action.
In addition, carry out under the situation of conduction detection of tabular printed base plate upper detection device 30 and bottom pick-up unit 40 being moved simultaneously, carry out conduction detection simultaneously.
Like this, in the electrical device 10 of present embodiment, detect and not to be arranged on test section 37,47, and be installed near the control device 50 detecting with 36, the 46 reacting force sensors 38,48 of reacting force of bestowing the pressing force of printed base plate 11 of popping one's head in.Reacting force sensor 38,48 will detect the reacting force of bestowing motor 32,42 with 36, the 46 pressing forces conducts of bestowing printed base plate 11 of popping one's head in by test section 37,47, and it is detected.Therefore, detect, also do not need to change reacting force sensor 38,48, can use as before with popping one's head in 36,46 when replacing with test section 37,47.
In addition, be controlled to suitable value owing to detecting by control device 50 with probe 36,46 pressing forces of bestowing printed base plate 11, so do not have the loose contact that detects with between the contact 11a of probe 36,46 and printed base plate 11, thereby can carry out high-precision electrical.In addition, detect between the contact 11a with probe 36,46 and printed base plate 11 and can determine suitable contact condition, so can prevent to detect the breakage of using probe 36,46.In addition, reacting force sensor 38,48 detects the reacting force to motor 32,42, thus not only can be arranged on control device 50 near, and can be arranged near optional position (for example moving part 31,41).That is, can increase the degree of freedom that the position is set of reacting force sensor 38,48.
The present invention there is no need to be defined in the foregoing description, and can carry out the change in the various designs in the scope of the present invention of claims definition.For example, reacting force sensor 38,48 can be arranged on the support unit 35,45.At this moment, reacting force sensor 38,48 detects when detection is pushed printed base plate 11 with probe 36,46 from the reacting force of this printed base plate 11 by 37,47 pairs of support units 35,45 of test section.In such design alteration, replacing detects with probe and need not to change reacting force sensor 38,48 at 36,46 o'clock, and uses as before, thereby can play the application's technique effect.
In addition, in the present embodiment, upper detection device 30 and bottom pick-up unit 40 are separately positioned on the above and below of printed base plate 11, but also single pick-up unit can be arranged on the side of above-below direction of printed base plate 11.In addition, also there is no need to limit, also can suitably set and to calculate the such data of appropriate pressing force, characteristic and parameter about various data shown in the table 1 and project.
In addition, in the present embodiment, be horizontally disposed with printed base plate 11, but direction being set also can setting arbitrarily about this printed base plate 11.For example, be obliquely installed printed base plate 11, or vertical the setting.In the present embodiment, various driving mechanisms are driven by motor 32,42, but also can use cylinder etc. except that motor.In addition, electrical of the present invention is not limited to conduction detection, also can comprise the insulation detection and wait other electrical.
Table 1
The present invention advocates right of priority 2005-155381 number according to promptly special hope of Japanese patent application 2005-155377 number and special hope, and its content is quoted at this.
Claims (16)
1. electrical device, it contacts the electrical that above-mentioned printed base plate is carried out in the contact that is arranged on the printed base plate on the setting device by making to detect with probe, it is characterized in that having:
Installing component, it installs above-mentioned detection with popping one's head in;
Support unit, it supports above-mentioned installing component removably;
Driving mechanism, it makes above-mentioned detection contact above-mentioned printed base plate with probe by making above-mentioned installing component with respect to the above-mentioned printed base plate advance and retreat that are arranged on the above-mentioned setting device;
The reacting force sensor, when above-mentioned detection contact with above-mentioned printed base plate with probe, its detect pressing force that above-mentioned detection bestows above-mentioned printed base plate with popping one's head in and conduct to the reacting force of above-mentioned driving mechanism;
Control device, its detected value according to above-mentioned reacting force sensor drives above-mentioned driving mechanism, with control above-mentioned detection is contacted with above-mentioned printed base plate with the pressing force of probe with regulation.
2. electrical device as claimed in claim 1 is characterized in that, and is corresponding with the driving force of the motor that drives above-mentioned driving mechanism to the reacting force of above-mentioned driving mechanism.
3. electrical device as claimed in claim 1, it is characterized in that, to the reacting force of above-mentioned driving mechanism with suitable to the reacting force of above-mentioned support unit, the reacting force of above-mentioned support unit for when above-mentioned detection is pushed printed base plate with popping one's head in from this printed base plate by the reacting force of test section to support unit.
4. electrical inspection method, it is used by making and supports the electrical that driving mechanism that installation and measuring makes above-mentioned detection contact above-mentioned printed base plate with probe with the pressing force of stipulating with the support unit of probe mounting parts and above-mentioned installing component with respect to the printed base plate advance and retreat carries out above-mentioned printed base plate removably, it is characterized in that, comprising:
The contact operation makes above-mentioned detection contact above-mentioned printed base plate with probe;
Reacting force detects operation, detect the pressing force when above-mentioned detection contacts with above-mentioned printed base plate with popping one's head in, bestowed and conduct to the reacting force of above-mentioned driving mechanism;
Pressing force control operation, the detected value that detects the operation detection according to above-mentioned reacting force drives above-mentioned driving mechanism, makes above-mentioned detection contact above-mentioned printed base plate with probe with the pressing force of stipulating with control.
5. electrical inspection method as claimed in claim 4 is characterized in that, it is corresponding with the driving force of the motor that drives above-mentioned driving mechanism that above-mentioned reacting force detects the reacting force to above-mentioned driving mechanism that detects in the operation.
6. electrical inspection method as claimed in claim 4, it is characterized in that, above-mentioned reacting force detect detect in the operation to the reacting force of above-mentioned driving mechanism with suitable to the reacting force of above-mentioned support unit, the reacting force of above-mentioned support unit for when above-mentioned detection is pushed printed base plate with popping one's head in from this printed base plate by the reacting force of test section to support unit.
7. electrical device, it contacts the electrical that above-mentioned printed base plate is carried out in the contact that is arranged on the printed base plate on the setting device by making to detect with probe, it is characterized in that having:
Driving mechanism, it makes above-mentioned detection with probe contact above-mentioned printed base plate with the probe mounting parts with respect to the printed base plate advance and retreat that are arranged on the above-mentioned setting device by making the above-mentioned detection of installation;
Control device, it is according to the physical characteristics and the above-mentioned detection number of popping one's head in that be installed in above-mentioned installing component on of above-mentioned detection with probe, calculate above-mentioned detection with the pressing force of probe, make above-mentioned driving mechanism make above-mentioned detection contact above-mentioned printed base plate with the pressing force of calculating with probe with control to above-mentioned printed base plate.
8. electrical device as claimed in claim 7 is characterized in that, calculate the above-mentioned detection used in the pressing force with the physical characteristics of probe be above-mentioned detection with in size, material and the spring constant of probe at least any.
9. as claim 7 or 8 described electrical devices, it is characterized in that, dispose under the situation of a plurality of above-mentioned detections with probe, also calculate pressing force with reference to its collocation method.
10. electrical inspection method, it contacts the electrical that above-mentioned printed base plate is carried out in the contact that is arranged on the printed base plate on the setting device by making to detect with probe, it is characterized in that having:
The contact operation, it makes above-mentioned detection probe contact above-mentioned printed base plate with the probe mounting parts with respect to the above-mentioned printed base plate advance and retreat that are arranged on the above-mentioned setting device by making the above-mentioned detection of installation;
Pressing force control operation, it is according to the physical characteristics and the above-mentioned detection number of popping one's head in that be installed in above-mentioned installing component on of above-mentioned detection with probe, calculate above-mentioned detection with the pressing force of probe, make above-mentioned detection contact above-mentioned printed base plate with the pressing force of calculating with probe with control to above-mentioned printed base plate.
11. electrical inspection method as claimed in claim 10 is characterized in that, calculate the above-mentioned detection used in the pressing force with the physical characteristics of probe be above-mentioned detection with in size, material and the spring constant of probe at least any.
12., it is characterized in that as claim 10 or 11 described electrical inspection methods, dispose under the situation of a plurality of above-mentioned detections with probe, also calculate pressing force with reference to its collocation method.
13. electrical inspection method as claimed in claim 10 is characterized in that, above-mentioned installing component is installed on the driving mechanism removably by support unit,
Also have reacting force and detect operation, revolve the pressing force conduct given reacting force when detecting above-mentioned detection above-mentioned driving mechanism with the above-mentioned printed base plate of probe contact,
In the above-mentioned pressing force control operation, the detected value that detects the operation detection according to above-mentioned reacting force drives above-mentioned driving mechanism, makes above-mentioned detection contact above-mentioned printed base plate with probe with the pressing force of calculating to control above-mentioned driving mechanism.
14. electrical inspection method as claimed in claim 13 is characterized in that, calculate the above-mentioned detection used in the pressing force with the physical characteristics of probe be above-mentioned detection with in size, material and the spring constant of probe at least any.
15. electrical inspection method as claimed in claim 13 is characterized in that, disposes under the situation of a plurality of above-mentioned detections with probe, also calculates pressing force with reference to its collocation method.
16. electrical inspection method as claimed in claim 14 is characterized in that, disposes under the situation of a plurality of above-mentioned detections with probe, also calculates pressing force with reference to its collocation method.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005155381A JP4919617B2 (en) | 2005-05-27 | 2005-05-27 | Electrical inspection apparatus and electrical inspection method for printed circuit board |
| JP155381/05 | 2005-05-27 | ||
| JP2005155377A JP5334355B2 (en) | 2005-05-27 | 2005-05-27 | Electrical inspection apparatus and electrical inspection method for printed circuit board |
| JP155377/05 | 2005-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1916649A CN1916649A (en) | 2007-02-21 |
| CN100585415C true CN100585415C (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610084557A Active CN100585415C (en) | 2005-05-27 | 2006-05-25 | Device and method for electrically inspecting printed circuit board |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP4919617B2 (en) |
| KR (1) | KR100816125B1 (en) |
| CN (1) | CN100585415C (en) |
| TW (1) | TWI305708B (en) |
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| CN107949168A (en) * | 2016-10-13 | 2018-04-20 | 雅马哈精密科技株式会社 | Processing unit and processing method |
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| JP4461159B2 (en) * | 2007-06-14 | 2010-05-12 | ヤマハファインテック株式会社 | Printed circuit board inspection apparatus and inspection method |
| KR101049396B1 (en) * | 2010-06-11 | 2011-07-15 | 한국기계연구원 | Apparatus and method for simulating printing process |
| CN104155600A (en) * | 2014-08-15 | 2014-11-19 | 宁波昌隆机电有限公司 | High-efficiency electrical switch squeezing test method |
| CN109212273A (en) * | 2017-07-07 | 2019-01-15 | 南京泊纳莱电子科技有限公司 | Flying probe tester |
| CN108525895B (en) * | 2018-04-17 | 2019-08-27 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
| JP7310345B2 (en) * | 2019-06-17 | 2023-07-19 | ニデックアドバンステクノロジー株式会社 | inspection equipment |
| JP7371885B2 (en) * | 2019-07-08 | 2023-10-31 | ヤマハファインテック株式会社 | Electrical inspection equipment and holding unit |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW200714149A (en) | 2007-04-01 |
| JP2006332422A (en) | 2006-12-07 |
| JP5334355B2 (en) | 2013-11-06 |
| JP4919617B2 (en) | 2012-04-18 |
| KR20060122730A (en) | 2006-11-30 |
| JP2006329861A (en) | 2006-12-07 |
| TWI305708B (en) | 2009-01-21 |
| CN1916649A (en) | 2007-02-21 |
| KR100816125B1 (en) | 2008-03-21 |
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