EP0267306A1 - Appareil de test pour éléments de circuit insérés dans une bande - Google Patents

Appareil de test pour éléments de circuit insérés dans une bande Download PDF

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Publication number
EP0267306A1
EP0267306A1 EP86115585A EP86115585A EP0267306A1 EP 0267306 A1 EP0267306 A1 EP 0267306A1 EP 86115585 A EP86115585 A EP 86115585A EP 86115585 A EP86115585 A EP 86115585A EP 0267306 A1 EP0267306 A1 EP 0267306A1
Authority
EP
European Patent Office
Prior art keywords
belt
components
gripper
station
test
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86115585A
Other languages
German (de)
English (en)
Inventor
Konstantin Gerganoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schoenelec-PFE GmbH
Original Assignee
Schoenelec-PFE GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schoenelec-PFE GmbH filed Critical Schoenelec-PFE GmbH
Priority to EP86115585A priority Critical patent/EP0267306A1/fr
Publication of EP0267306A1 publication Critical patent/EP0267306A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties

Definitions

  • the invention relates to a test device for taped electronic components with the features of the preamble of claim 1.
  • This pick and place machine can be converted into a so-called test handler, with which components that have already been taped can be checked after being removed from the belt and then reinserted into the belt.
  • a so-called test handler with which components that have already been taped can be checked after being removed from the belt and then reinserted into the belt.
  • such a conversion is only possible for one component size; a different conversion kit must be used for components with different dimensions.
  • the object of the invention specified in claim 1 is to provide a test device which can be set universally for components of the most varied dimensions and which does not require conversion for different components and thus belt dimensions, but instead can be adjusted to different dimensions in just a few steps - or even program-controlled.
  • the gripper Due to the inventive design and adjustability of the gripper in the horizontal direction with respect to the belt guide, its gripping elements can be easily and quickly aligned with different components which are transported to the test station in belts of different widths and different nest depths. All that is required is for the support carrying the gripper to be displaced horizontally and a guide rail for the belt to be adjusted vertically so that the gripping element located at the removal or belt loading position is aligned approximately with the center of the component transported by the belt and is in its downward stroke lowered to the surface of the component and can suck it in. This stroke may be constant because the different height of the components is taken into account by the vertical guide rail setting.
  • a useful embodiment of the alignment tool is in the form of two pairs of straightening jaws, the parallel two jaws of each pair aligning the component located therebetween parallel to the jaws during a movement toward one another, while the jaws of the other pair subsequently align the component in the direction perpendicular thereto in the desired direction Shift the alignment position, in which it is then picked up by the gripper and transported to the test station.
  • a relatively simple and reliable construction is obtained when the straightening jaws are actuated from a common eccentric, but other drives, for example via pneumatic cylinders, are also conceivable.
  • test contact sets which on the one hand attach to the contacts of the component and on the other hand are contacted by the test head, can advantageously be easily replaced at the contacting station.
  • the storage station at which a certain stock of good components, of which one is always aligned with the gripper, is collected, so that empty nests in the belt, in which components may have been missing or which have been removed by testing as poorly classified components have arisen, can be replenished from this supply.
  • the number of components stored here depends on the probability of how many missing or reject elements can be expected in a belt.
  • Another expedient embodiment of the invention consists in the interchangeability of the suction nozzles, the openings of which should be adapted to the surface shape of different components, so that they are securely received by the gripping elements.
  • the adjustability to different belt widths also serves the adjustability of the adhesive roll, with which the heat-sealing adhesive film of the cover tape is connected to the edge parts of the belt surface after the components have been inserted into the nests of the belt.
  • the adhesive roller which is expediently heated in its hollow interior by means of an exchangeable cartridge, has two adjustable adhesive rings which protrude like tires beyond the circumference of the roller, the spacing of which can be adjusted to the belt width, for example by shifting on the roller surface.
  • the pressure force of the adhesive roller can also be adjusted, for example via a lifting magnet, with which the adhesive roller is brought into the adhesive position via a pivotable bearing arm.
  • the front view of the test device reveals a supply reel 2 on the left, from which a belt 4 with components to be tested is unrolled and fed via a deflection roller 6 to the test station, generally designated 8.
  • a transport roller 10 grips the belt 4 threaded into a guide rail 12, a toothing 14 of the transport roller 10 engaging in a lateral perforation 16 of the belt (see FIG. 2).
  • the shroud 18 holding the components in the belt is pulled off beforehand and wound onto a shroud reel 20.
  • the pull-off force and thus the adhesive force of the shroud on the belt can be measured and optionally displayed via a movably arranged deflection roller 22. This measurement can be used, for example, to check the prescribed adhesive strength.
  • test station shown in FIG. 2 is omitted in FIG. 1.
  • a new cover band 26 is fed from a cover band supply roll 28 to the belt.
  • a heatable adhesive roller 30 which is explained in detail with reference to FIGS. 9 and 10
  • the cover tape is glued to the edges at the edges, so that the tested components are secured.
  • a second transport roller 32 engages with its toothing in the perforation of the belt 4, the is fed via a further deflection roller 34 to a take-up reel 36 and is wound up there.
  • a height and laterally adjustable support rail 38 on which the belt 4 slides as it passes through the test station 8 and is guided by the teeth of the transport rollers 10, 32 on one side and guide pins 38a on the opposite belt edge.
  • the height adjustability is symbolically represented by the arrows illustrated on the right, the distance between which is denoted by H as a measure of the thickness of the components and thus of the belt.
  • the height adjustment of the support rail 38 can be carried out either manually or automatically after input of the corresponding data of the component types to be tested, possibly also program-controlled.
  • the adjustment to the belt width is carried out by moving the support 40 with the test head 41 together with the gripper 46 and support rail 38 transversely to the belt transport direction and is illustrated in FIG. 2 by the double arrows with the designation B (see also FIG. 3).
  • the adjustment of the displacement mechanism 42 can also be done manually, automatically based on input data or program-controlled, so that the gripping element 44 of a gripper 46 containing four such gripping elements is located in the middle of the component to be removed from the belt.
  • the displacement mechanism 42 can simply be designed as a spindle drive, so that the respective displacement quantity can be easily determined via the spindle revolutions.
  • a rack and pinion drive or pneumatic drive with adjustable stops can also be provided to adjust the width B.
  • FIG. 2 Two positions I, II, III and IV are illustrated in FIG. 2, which the gripping elements 44 can assume when the gripper 46 is advanced by 90 ° in each case.
  • the removal station At the first position I there is the removal station, at each of which a component is removed from a nest of the belt and is brought into position II when the gripper is switched on.
  • the alignment station In which the component, whose position in the belt nest is not exactly defined, is precisely aligned for the subsequent contact. It is anticipated at this point in FIG. 8, where a component 48 lies between directional jaws 50a, b and 51a, b arranged in pairs over a cross. The starting position is shown on the left, in which the component 48 is deposited by the gripping element 44.
  • step 1 the clamping jaws 50a and 50b move towards the component and align it parallel to itself and in the middle between them and then move apart again.
  • step 2 the alignment perpendicular to this is carried out in a corresponding manner by the straightening jaws 51a and 51b.
  • the gripper 46 To pick up a component by a gripping element, the gripper 46 is lowered and then moves up again before the 90 ° advance for transporting the component to the next station, where the gripper lowers again to put the component down.
  • the gripping elements 44 connected to the vacuum lines are each vented, and a slight overpressure pulse can be applied to them in order to release the components more securely. In this way, the gripping element 44 located in the alignment position II resumes the component aligned in the manner explained, while at the same time the gripping element 44 located above the belt removes a new component from the belt.
  • the aligned component is transferred from the alignment station to the contacting station into the gripper position III, while at the same time the component removed from the belt in the gripper position I is brought to the alignment station.
  • the aligned component now in the contacting station is contacted by the contact head 52, which for this purpose contacts the contacts located on the underside of the component with its upward contacts.
  • the electrical test of the component can now be carried out according to a desired test program, which is carried out by test electronics, with which the test device described here can be equipped as desired.
  • the contact head with the contact set can be replaced by simply loosening a screw connection if components with a different contact arrangement are to be tested.
  • the component at the contacting station is again picked up by the gripping element 44 and transported to a storage station IV if it is passed the exam as good. If, on the other hand, the component under test does not meet the requirements, an ejector controlled by the test electronics, not specifically shown here, is actuated at station IV, so that this component falls into a reject container.
  • the now empty gripping element then fetches another component from the supply of good components at the storage station and inserts it into the empty nest of the belt in order to fill the gap caused by the bad component again.
  • the belt is closed with a new shroud 26, which is sealed on both sides with the belt using two adhesive rings 54 of the heatable adhesive roller 30.
  • the temperature and pressure force of the adhesive rings 54 can be set as desired.
  • the closed belt is then wound onto the take-up reel 36.
  • Fig. 4 illustrates different belt widths from 8 to 56 mm, the narrower widths being perforated on one side only, while the larger widths are perforated on both sides.
  • the width adjustment according to the arrows B can be designed so that it covers the entire range of practically occurring belt widths.
  • the belt start after loosening the shroud 18 by pressing a belt retraction button is first gripped by the transport roller 10, and the open belt band is pre-clocked to the removal station (gripper position I).
  • the first component is removed from the gripper and brought to the alignment station in position II in the manner already described. If the belt is drawn in so far that it is gripped by the second transport roller 32, then this takes over the feed, and the first transport roller 10 is no longer driven. This ensures that the belt is always under tension and does not compress and thereby jam.
  • FIG. 5 An embodiment of the gripper 46 is illustrated in FIG. 5, where one of the four gripping elements 44 is shown in section.
  • a vacuum hose 56 which is seated on a vertical tube 58, which is axially displaceably mounted in a gripper head 60.
  • a spring 62 presses the tube downward, so that its conical lower end is pressed into a correspondingly conically shaped upper opening of a suction nozzle 62.
  • the suction nozzle 62 is slidably and interchangeably in a threaded cap 64 which is screwed to the gripper head 60.
  • a suction nozzle with a suction opening adapted to this surface shape is selected, as has already been explained.
  • the displaceability of the suction nozzle 62 with the resilient mounting of the tube 58 allows the suction nozzle to yield when it is placed on the component, so that a tight contact of the suction nozzle opening with the surface of the component is ensured without the risk of damage .
  • thicker suction nozzles can also be used with a larger one Select suction opening, using a different threaded cap if necessary.
  • FIG. 6 shows details of the drive of the alignment jaws already mentioned in connection with FIG. 8 for aligning the components in the alignment station according to position II in FIG. 1.
  • the four alignment jaws 50a, b and 51a, b are each by means of a rail formed linear guide 66, with which they are connected via bolts 68, 70, mounted longitudinally displaceably and are held in their rearward position by a spring 72 acting here on the bolt 68.
  • On the bolt 68 also engages a driving bar 74 which is supported at its other end on an eccentric pin 76 of an eccentric disk 78.
  • the eccentric disk 78 has two eccentric pins 76 arranged opposite one another, on each of which two driving bars 74 are mounted, one of which belongs to each pair of straightening jaws: the driving bars 74 belonging to the straightening jaws 50a and 51b are located on one of the eccentric pins 56 and the directional jaws Driving bars 74 belonging to 51a and 50b sit on the other eccentric pin. This ensures that with maximum movement of one pair of jaws the other is practically at rest and vice versa.
  • the eccentric disk 78 can be driven by the belt 80 via a slip clutch by a motor 82, which can be a stepping motor synchronized with the gripper control.
  • the slip clutch can also be easily realized by designing the belt 80 as a friction belt.
  • FIG. 7 shows a support for components at two different heights: in the right part of the figure it is designated 84a and in the uppermost position for flat components, in the left part of the figure it is shown at 84b in a lower position for thicker components.
  • FIG. 9 shows a storage example for the adhesive roller 30, the adhesive rings 54 of which glue the heat-sealing cover tape 26 to the edges of the belt 4 on both sides of the belt nests 86.
  • the adhesive roller 30 is rotatably mounted on a swivel arm 88, which in turn can be swiveled about an axis 90 with the aid of a lifting magnet 92.
  • the lifting magnet lifts the adhesive roller 30 between the movement intervals of the belt 4 and presses the roller only during the feed movements of the belt 4 with the shroud 26 to seal the belt and belt during the belt feed.
  • the effective contact pressure can be adjusted via the magnetic current as required:
  • the armature 94 of the lifting magnet can be pressed down by a spring, the force of which is more or less reduced by the magnetic force of the excitation coil and is completely overcome to lift off the adhesive roll.
  • FIG. 10 A cross section through the adhesive roller 30 is shown in FIG. 10. Different widths and depths of nests 86 in the belt 4 are also illustrated here. While the left adhesive ring 54 is firmly seated on the cylindrical surface 96 of the adhesive roller 30, the right adhesive ring 54 is axially displaceable and thus adjustable to different belt widths. In the figure it is set to the narrowest width.
  • the adhesive rings each have a narrower circumferential adhesive track rim 98, which determines the actual width of the seal between the cover tape 26 and the belt 4.
  • a heating cartridge 100 In the hollow interior of the adhesive roll 30 there is a heating cartridge 100, the temperature of which can be set via the heating current and which cylindrical surface 96 of the adhesive roll 30 with the adhesive 54 heated to the desired sealing temperature. 10 also shows roller bearings 102 for mounting the roller cylinder.
  • a test device of the type described above is generally referred to as a test handler.
  • it can be microprocessor-controlled and is designed with a belt reel unwinding and winding station and, for example, can be latched and adjusted to different belt widths, for example between 8 and 56 mm of belt widths that occur in practice.
  • This adjustability also applies to the guide rollers for the belt pull and the adhesive roller for the reclosure of the belt. If the programming for the number of pieces, belt width, belt thickness etc. has been carried out, the belt catch is inserted in the automatic feed.
  • the cover band is pulled off and glued to a pull-off band, and the open belt band is clocked up to the component removal station I via a belt feed button.
  • the first component is removed in the removal area via the start button and transported to a straightening station, where it is correctly positioned for the contact to be made in the next third station.
  • the component is either thrown into a reject vessel or, after passing through a storage station, put back into the empty nest of the belt. In all of these movements, a new component is constantly removed, while others are straightened, checked and evaluated.
  • the belt with the tested components is transported to the heat sealing station by stepper motors, where it is provided with a cover tape and then rewound.
  • the contact set for testing with the associated adapter or connector is screwed to the handler from below through a cutout on the front of the handler, so that the test head can be docked directly onto the adapter from below in the test station.
  • the handler can be connected to all common testers with which the desired test programs can be carried out.
  • a series of sensors monitor the entire process and report any error conditions by text on a display or by acoustic signals.

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  • Testing Of Individual Semiconductor Devices (AREA)
EP86115585A 1986-11-10 1986-11-10 Appareil de test pour éléments de circuit insérés dans une bande Withdrawn EP0267306A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP86115585A EP0267306A1 (fr) 1986-11-10 1986-11-10 Appareil de test pour éléments de circuit insérés dans une bande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86115585A EP0267306A1 (fr) 1986-11-10 1986-11-10 Appareil de test pour éléments de circuit insérés dans une bande

Publications (1)

Publication Number Publication Date
EP0267306A1 true EP0267306A1 (fr) 1988-05-18

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ID=8195582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115585A Withdrawn EP0267306A1 (fr) 1986-11-10 1986-11-10 Appareil de test pour éléments de circuit insérés dans une bande

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EP (1) EP0267306A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418477A2 (fr) * 1989-09-21 1991-03-27 Deutsche ITT Industries GmbH Procédé pour la classification fine de diodes à capacité
CN110813773A (zh) * 2019-10-23 2020-02-21 台晶(宁波)电子有限公司 一种用于镀膜后的石英芯片的频率自动测量设备
WO2021135787A1 (fr) * 2019-12-29 2021-07-08 江苏达晨冠图电气科技有限公司 Mécanisme de criblage de diagraphie électrique pour un disque de résistance à oxyde de zinc
US11855458B2 (en) 2017-12-21 2023-12-26 Vestas Wind Systems A/S Current injection in wind power plants

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497948A (en) * 1967-09-05 1970-03-03 Transistor Automation Corp Method and apparatus for sorting semi-conductor devices
GB1289837A (fr) * 1968-12-19 1972-09-20
US3750878A (en) * 1971-11-15 1973-08-07 Dixon K Corp Electrical component testing apparatus
DE3234216A1 (de) * 1982-09-15 1984-03-15 Trumpf GmbH & Co, 7257 Ditzingen Vorrichtungen zum be- und insbesondere entladen von bearbeitungsmaschinen
JPS60132827A (ja) * 1983-12-21 1985-07-15 Toyo Shokuhin Kikai Kk 卵の整列移送方法及び装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497948A (en) * 1967-09-05 1970-03-03 Transistor Automation Corp Method and apparatus for sorting semi-conductor devices
GB1289837A (fr) * 1968-12-19 1972-09-20
US3750878A (en) * 1971-11-15 1973-08-07 Dixon K Corp Electrical component testing apparatus
DE3234216A1 (de) * 1982-09-15 1984-03-15 Trumpf GmbH & Co, 7257 Ditzingen Vorrichtungen zum be- und insbesondere entladen von bearbeitungsmaschinen
JPS60132827A (ja) * 1983-12-21 1985-07-15 Toyo Shokuhin Kikai Kk 卵の整列移送方法及び装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 294 (M-431)[2017], 20. November 1985; & JP-A-60 132 827 (TOUYOU SHIYOKUHIN KIKAI K.K.) 15-07-1985 *
RESEARCH DISCLOSURE, Nr. 242, Juni 1984, Seite 258, Industrial Opportunities Ltd, Havant, Hampshire, GB; "Simultaneous dual pick and place robot (air driven)" *
TECHNICAL DIGEST WESTERN ELECTRIC, Nr. 53, Januar 1979, Seiten 9-10, Western Electric, New York, US; D.W. HILDNER et al.: "Apparatus for testing, sorting and taping axially leaded devices" *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418477A2 (fr) * 1989-09-21 1991-03-27 Deutsche ITT Industries GmbH Procédé pour la classification fine de diodes à capacité
EP0418477A3 (en) * 1989-09-21 1991-11-27 Deutsche Itt Industries Gmbh Fine classification process for capacity diodes
US11855458B2 (en) 2017-12-21 2023-12-26 Vestas Wind Systems A/S Current injection in wind power plants
CN110813773A (zh) * 2019-10-23 2020-02-21 台晶(宁波)电子有限公司 一种用于镀膜后的石英芯片的频率自动测量设备
CN110813773B (zh) * 2019-10-23 2023-06-16 台晶(宁波)电子有限公司 一种用于镀膜后的石英芯片的频率自动测量设备
WO2021135787A1 (fr) * 2019-12-29 2021-07-08 江苏达晨冠图电气科技有限公司 Mécanisme de criblage de diagraphie électrique pour un disque de résistance à oxyde de zinc

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