KR100638859B1 - System for testing temp?characteristics of electronic element - Google Patents

Abstract

The present invention relates to a measurement system capable of testing various intrinsic characteristics of electronic components over various temperature ranges.

According to the present invention, there is provided a thermoelectric module array in which a plurality of thermoelectric modules are arranged in a circle so as to provide measurement zones having different temperature ranges; A transfer plate installed on the thermoelectric module array so as to rotate by a pitch and having pockets into which the object to be measured is inserted at a predetermined interval so as to contact the surface of the thermoelectric module; Supply means for supplying an object to be measured into a pocket of the transfer plate; And a plurality of measurement modules arranged to correspond to the thermoelectric module, wherein the measurement module array collectively performs a temperature characteristic measurement on the objects to be transferred to the measurement point of the thermoelectric module at every pitch rotation of the transfer plate. Disclosed is a temperature characteristic measurement system comprising;

Temperature characteristics, Peltier element, SMD type crystal oscillator

Description

Temperature characteristic measuring system of electronic component {SYSTEM FOR TESTING TEMP．CHARACTERISTICS OF ELECTRONIC ELEMENT}

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a plan view showing the configuration of a temperature characteristic measurement system according to a preferred embodiment of the present invention.

2A to 2C are side views illustrating the configuration of the thermoelectric module in FIG. 1.

3 is a cross-sectional view showing a mounting structure of a thermoelectric module.

4 is a partial perspective view showing the configuration of the feeder in FIG.

Figure 5 is a side view showing the configuration of the adsorption pin in FIG.

6 is a side view showing a mounting structure of the measuring module in FIG.

FIG. 7 is a plan view illustrating a configuration of the position adjusting unit of FIG. 6. FIG.

8 is a cross-sectional view showing an anti-frost structure provided in the measuring module in FIG.

9 is a side view showing a transfer structure of the take-out pin in FIG.

10 is a front view of FIG. 9;

<Description of main reference numerals in the drawings>

100 Thermoelectric module 105 Transfer plate

110 Measuring module 115 Feeder

120 ... stopper 125 ... first alignment jig

130 Support plate 135 Camera

140 ... Government 145 ... 2nd Alignment Jig

156 Cam unit 158 Sorting member

160 ... Measurement unit

The present invention relates to a temperature characteristic measurement system, and more particularly, to a temperature characteristic measurement system having a structure for automatically testing the temperature characteristic of an electronic component at high speed in a multi-zone temperature environment.

In general, since various electronic components are sensitive to the temperature environment and their characteristics change, it is important to test the unique characteristics for each predetermined temperature section to determine whether the product is good or not.

In order to test the temperature characteristics of electronic components, conventionally, a method of measuring a frequency characteristic or a load characteristic using a predetermined measurement module after inputting a measurement object in a measurement chamber in which the internal ambient temperature can be controlled is widely used. .

However, since the conventional temperature characteristic measurement system is configured to maintain the same ambient temperature for all the measured objects put into the measurement chamber, for example, the temperature of the electronic component is divided into multiple sections within the range of -40 ° C to 85 ° C. In order to measure the characteristics, there are vulnerabilities that are inconvenient to use and require a lot of test time, such as re-injecting the object to the measuring chamber several times.

The present invention was conceived in view of the above problems, and has a temperature that allows a temperature characteristic test on a measurement object to be performed collectively in a multi-type measurement zone that provides a temperature section of multiple sections. Its purpose is to provide a characterization system.

Another object of the present invention is to provide a temperature characteristic measurement system having a feeder which can reduce the occurrence rate of defects by selecting the specifications or inversion state of the measured object to be supplied.

Still another object of the present invention is to provide a temperature characteristic measurement system capable of finely adjusting the alignment of the measurement module with respect to the measurement object.

Another object of the present invention to provide a temperature characteristic measurement system that can prevent the frost is caught around the thermoelectric module due to the temperature difference.

It is still another object of the present invention to provide a temperature characteristic measurement system capable of reducing the load on the cam mechanism for picking up and transporting a workpiece.

In order to achieve the above object, a temperature characteristic measurement system according to the present invention includes a thermoelectric module array in which a plurality of thermoelectric modules are arranged in a circle to provide measurement zones having different temperature intervals; A transfer plate installed on the thermoelectric module array so as to rotate by a pitch and having pockets into which the object to be measured is inserted at a predetermined interval so as to contact the surface of the thermoelectric module; Supply means for supplying an object to be measured into a pocket of the transfer plate; And a plurality of measurement modules arranged to correspond to the thermoelectric module, wherein the measurement module array collectively performs a temperature characteristic measurement on the objects to be transferred to the measurement point of the thermoelectric module at every pitch rotation of the transfer plate. It includes;

The thermoelectric module may include a metal block providing a support surface to which the object to be measured comes into contact; At least one thermoelectric element whose one surface is in contact with the metal block; And a cooling block in contact with the other surface of the thermoelectric element and having an internal space into which coolant is introduced.

Preferably, the supply means, the feeder for selecting the size and direction of the object to be supplied from the hopper to transfer to the transfer track; A stopper provided at an end of the transfer track and having a concave groove into which the object to be measured enters; A first alignment jig for aligning directions by guiding an edge of the object to be delivered from the stopper by a first suction pin; A support plate having a pocket into which the object to be delivered delivered from the first alignment jig is input by a second suction pin; Vision means for installing the camera on an upper portion of the support plate to check an alignment direction of the object to be inserted into the pocket of the support plate; A correction groove which is formed by a third suction pin into which a measurement target delivered from the support plate is input and is selectively rotated according to the inspection result of the vision means to adjust the alignment direction of the measurement target; A second alignment jig for aligning directions by guiding the edges of the object to be delivered from the corrector by a fourth suction pin; And an insert pin for picking up the object to be aligned in the second alignment jig and inserting the object into the pocket of the transfer plate.

The feeder may include: a guide rail for guiding a measurement object to the transport track when vibration is applied; A size adjusting unit provided with a control plate for limiting a passing height and a width of the object to be measured running along the guide rail; And an inverting unit which selectively blows air to the inverted object to be returned to its original state among the objects to be passed through the size adjusting unit.

The stopper has a structure in which at least two concave grooves having different sizes are provided at an edge of the body bracket, and the body bracket is detachably installed so that any concave groove can be selected and aligned with the transport track. It is desirable to have.

Preferably, the first alignment jig includes two pairs of alignment jaws that guide the slope of the object to be measured by advancing in the direction of the object to be supplied.

Preferably, the support plate has at least two kinds of pockets arranged circularly at regular intervals, and may be rotatably installed at a pitch such that the pockets are sequentially aligned in the forward and downward directions of the camera.

The first adsorption pin, the second adsorption pin, the third adsorption pin, the fourth adsorption pin, and the insert pin are installed to be lifted and horizontally transported, and are preferably elastically biased downward to buffer the object to be measured during pickup. Do.

Additionally, the present invention includes a center block which is installed to be elevated on the transfer plate; A support arm hinged to the center block and disposed radially to correspond to the thermoelectric module; And a position adjusting unit fixed to an end of the support arm, wherein the measuring module may be mounted to the position adjusting unit to be able to adjust the position with respect to the pocket of the transfer plate.

The position adjusting unit, a bracket attached to the support arm; A pair of first guide pins fixed to the bracket; A movable block slidably installed along the first guide pin; A pair of second guide pins disposed perpendicular to the first guide pin and penetrating the movable block so as to slide with respect to the movable block; And a movable frame to which the measurement module is mounted, and to which the second guide pin is fixed. A first adjustment screw which is fastened to the movable block while being restrained on one side of the bracket, and adjusts the position of the movable frame in the width direction of the pocket of the transfer plate by rotating the movable block forward and backward along the first guide pin during rotation; ; And a second fastening to the movable block while being constrained to one side of the movable frame, and adjusting the position of the movable frame in the longitudinal direction of the pocket of the transfer plate by rotating the second guide pin back and forth with respect to the movable block during rotation. It is preferable to have an adjusting screw.

The structure for mounting the thermoelectric module, the support block for supporting the thermoelectric module array from the bottom; A first bolt for fixing a thermoelectric module with respect to the support block, the screw hole being recessed a predetermined depth in the axial direction from the front end thereof; And a second bolt fitted to the screw hole of the first bolt to press the thermoelectric module to level the adjacent thermoelectric modules.

In addition, the present invention includes an isolation cover covering the measurement module to isolate each measurement zone; A gas diffusion tube which is introduced into the isolation cover and has a through hole formed at a predetermined interval so that inert gas is evenly distributed in the isolation cover; And a porous member covering the gas diffusion tube to prevent the gas diffusion tube from being directly exposed to the measurement module.

In addition, the present invention may be further provided with a take-out means for taking out the object to be tested in the final measurement zone is completed, whether good or bad.

The ejection means may include at least one ejection pin; A first transfer block slidably installed on a horizontal rail provided between the transfer plate and the measurement object receiving unit, and having a vertical rail fixed to one side of the body; A second transport block installed to be elevated along the vertical rail and supporting the ejection pins; And a cam mechanism for lifting and lowering the second conveying block and horizontally sliding the first conveying block by rotating the second conveying block with respect to a rotation shaft for the pick-up and conveying operation of the ejecting pin. desirable.

In addition, the measurement module may further include a write circuit unit capable of recording data on the object under test.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a plan view showing the configuration of a temperature characteristic measurement system according to a preferred embodiment of the present invention.

Referring to FIG. 1, in the temperature characteristic measurement system according to an exemplary embodiment of the present invention, a thermoelectric module array 101 providing a multi-zone measurement zone and a plurality of pockets 105a into which a measurement object is inserted are formed. A transfer plate 105 installed to rotate by one pitch on the thermoelectric module array 101, supply means for sequentially supplying a measurement object to the transfer plate 105, and the thermoelectric module array 101. It is provided with a measuring module array 111 for selectively descending to the measurement point of the to perform the temperature characteristic measurement for the object to be measured.

Here, it is to be understood that the object to be tested by the measuring system according to the present invention may correspond to various types of electronic components including, for example, a surface mount device (SMD) type crystal oscillator.

The thermoelectric module array 101 has a structure in which a plurality of thermoelectric modules 100 are arranged in a circle so as to provide measurement zones having different temperature sections. The thermoelectric module array 101 provides a number of measurement zones corresponding to the number of thermoelectric modules 100. For example, the thermoelectric module array 101 may provide 16 measurement zones and predetermined dummy zones that divide a temperature range of −40 ° C. to 85 ° C. into 16 areas.

Preferably, the thermoelectric module 100 providing a different temperature range for each measurement zone has a configuration as shown in FIGS. 2A to 2C. Referring to the drawings, the thermoelectric module 100 may include a metal block 102 providing a support surface for contacting a workpiece, and at least one thermoelement 103 having one surface in contact with the metal block 102. And an outer surface of the thermoelectric element 103 in contact with the outer surface thereof, and a cooling block 104 having an inner space 104a through which the coolant is circulated.

The metal block 102 is preferably made of a brass alloy such as Shinju, which has a relatively high thermal conductivity compared to other metals such as stainless steel.

Preferably, a known Peltier element or a heating heater may be used as the thermoelectric element 103. However, various types of elements may be used as long as they use a phenomenon in which heat and electricity are converted to each other. Of course.

The number or type of elements of the thermoelectric element 103 may vary according to the temperature range of the thermoelectric module 100.

For example, the low-temperature thermoelectric module 100 having an operating range of 0 ° C. or less shown in FIG. 2A corresponds to a Peltier element, each having a size of 40 [mm] × 40 [mm] and 25 [mm] × 25 [mm]. It is preferable to have two rectangular thermoelectric element (103) having the specification of]. Here, the thermoelectric element 103 of the 25 [mm] x 25 [mm] standard is installed to contact the metal block 102, and the thermoelectric element 103 of the 40 [mm] x 40 [mm] standard is a cooling block ( 104 is installed to be in contact with each other, and a supporting auxiliary bracket 104 ′ may be interposed between the thermoelectric elements 103.

Medium temperature thermoelectric module 100 having an operating range of about 0 ℃ ~ 30 ℃ shown in Figure 2b is preferably provided with a single thermoelectric element 103 having a standard of 40 [mm] x 40 [mm]. In this case, the 40 [mm] × 40 [mm] standard thermoelectric element 103 is installed in contact with the cooling block 104, and the auxiliary bracket 104 'is disposed between the metal block 102 and the thermoelectric element 103. This may be intervened.

High temperature thermoelectric module 100 of about 30 ℃ ~ 85 ℃ shown in Figure 2c preferably comprises a thermoelectric element 103 corresponding to the heating wire heater. In this case, the thermoelectric element 103 may be installed to contact the cooling block 104, and an auxiliary bracket 104 ′ may be interposed between the metal block 102 and the thermoelectric element 103.

In particular, in the case of the low-temperature thermoelectric module 100, high temperature heat is generated on the opposite surface of the low-temperature region of the thermoelectric element 103, and the cooling block 104 serves as a heat sink for cooling it. . The cooling block 104 is provided with an internal space 104a for circulation of the cooling water. Here, the flow path through which the coolant flows is preferably formed such that the coolant flows from the lower surface of the thermoelectric module 100 to the upper surface direction as shown by the arrow. According to this structure, the introduced cooling water is circulated while forming a vortex in the internal space 104a, thereby further improving the cooling efficiency.

The thermoelectric module 100 is covered by a predetermined casing (not shown) with the upper surface of the metal block 102 partially exposed to the outside, and fastening between the cooling block 104 and the casing for assembly convenience. The silver is preferably made of a wrench bolt (not shown) fitted downward from the upper surface of the casing.

The thermoelectric module array 101 is preferably fixed on the flange 107 of the predetermined support block by a mounting structure as shown in FIG. Referring to FIG. 3, the flange 108 of each thermoelectric module 100 constituting the thermoelectric module array 101 is fixed to the support block by a first bolt 109a passing through the flange 107 of the support block. The second bolt 109b, which is fitted to the first bolt 109a, is pressed in the direction of the flange 107 of the support block to level the upper surface between adjacent thermoelectric modules 100. FIG. Here, the first bolt 109a is formed with a screw hole recessed to a predetermined depth in the axial direction from its tip, and the second bolt 109b is fastened to the screw hole.

The transfer plate 105 is installed on the thermoelectric module array 101 so as to rotate by a pitch about its center, and the measured object 1 may be introduced to contact the surface of the thermoelectric module 100. The pocket 105a is formed of a substantially disk structure in which the pockets 105a are formed at regular intervals. Here, the transfer plate 105 is installed to be spaced apart from the surface of the metal block 102 exposed on the upper surface of the thermoelectric module array 101 with a fine gap so that the temperature distribution of the thermoelectric module array 101 is transferred to the transfer plate ( It is preferable to prevent the change by 105).

The pocket 105a disposed in a circular shape on the transfer plate 105 is not limited to a single standard, and two or more pockets 105a may be repeatedly formed at regular intervals.

The supply means for supplying the measured object to the pocket 105a of the transfer plate 105 is preferably a feeder 115, a stopper 120, a first alignment jig 125, a support plate 130, and a vision means. The camera 135, the corrector 140, the second alignment jig 145, and the insert pin 146 are sequentially arranged.

The feeder 115 shown in FIG. 4 selects the size and direction of the measured object 1 supplied from the hopper 114 and transfers the size to the transport track 118. To this end, the feeder 115 has a structure in which periodic vibration is applied to the body to provide a conveying force to the object 1, and formed along the inner circumferential surface of the body of the feeder 115, the object 1 ) Guide rails 115a for guiding the transfer track 118 and control plates 116a and 116b for limiting the passable dimensions of the measurement object 1 traveling along the guide rails 115a. The size adjusting part 116 provided, and the inversion part 117 which selectively blows air with respect to the to-be-measured object in an inverted state, and return to an original state.

The size adjusting unit 116 has a height adjusting plate 116a which is installed to be able to adjust the height from the bottom of the guide rail 115a so as to determine the passage height of the object to be measured, and an upper surface thereof is part of the bottom of the guide rail 115a. It is provided to be provided with a width adjusting plate 116b to determine the pass width of the measurement object (1) in accordance with the forward, backward adjustment. When the height adjustment plate 116a is adjusted in the up and down directions, the height h from the upper surface of the width adjustment plate 116b to the lower surface of the height adjustment plate 116a is adjusted so that the height through which the object can pass is adjusted. Is determined. In addition, when the width adjusting plate 116b is adjusted in the front and rear directions, the width w between the wall surface of the guide rail 115a and the front end surface of the width adjusting plate 116b is adjusted to allow the object to be passed. The width is determined. Here, the height adjusting plate 116a and the width adjusting plate 116b are slidably mounted along the guide grooves corresponding to the height adjusting plate 116a to adjust the height and width.

The inverting unit 117 inverts by selectively blowing air to the measured object detected to be inverted by a predetermined optical sensor (not shown) of the measured object transferred through the size adjusting unit 116 to the original state. Return to The optical sensor may detect an inverted state of the object under test according to the amount of light reflected from the object under test. Here, the guide rail 115a near the inverting portion 117 is preferably formed such that the side wall or the bottom thereof is inclined at a predetermined angle so that the inversion operation on the object to be measured is smoothly performed.

The measured object which sequentially exits the feeder 115 along the guide rail 115a proceeds along the transport track 108 and is recessed in the groove 120a of the stopper 120 provided at the end of the transport track 108. It enters and stops. Here, the stopper 120 is provided with at least two concave grooves 120a having different widths and lengths spaced apart from each other at the edge of the body bracket, and selects any one concave groove 120a to transfer the track ( It is desirable to be detachably installed so that it can be aligned with 108). For example, a stopper groove 102a into which an ordinary 5032 standard SMD-type crystal oscillator can be fitted as a measurement object and a recess groove 120a into which a 7050-type SMD type crystal oscillator can be fitted are symmetrically stopped. When formed at both edges of the 120, the stopper 120, if necessary, by rotating the body 180 degrees can be provided compatibility.

The measured object entering the recessed groove 120a of the stopper 120 is sensed by a predetermined optical sensor (not shown). At this time, the first suction pin 121 picks up the measured object and arranges the first aligned object. It puts into the jig 125. The first alignment jig 125 includes two pairs of alignment jaws 126 that vertically cross each other to advance in the direction of the object to be delivered by the first suction pin 121 to guide the slope of the object to be measured. Arrange the direction of the object to be measured.

When the direction alignment of the object to be measured is completed by the first alignment jig 125, the second suction pin 127 picks up the object to be inserted into the pocket 130a of the support plate 130. The support plate 130 transfers the measured object under the camera 135 of the vision means installed to check the alignment direction of the measured object as an image. Preferably, the support plate 130 is provided with at least two kinds of pockets (130a) are circularly arranged at regular intervals, and rotated by one pitch so that the pockets (130a) are sequentially transported downward and forward of the camera 135 It is possibly installed.

The object to be passed through the photographing area of the camera 135 is picked up by the third suction pin 136 and inserted into the seating groove 141 of the corrector 140. The correction unit 140 is selectively rotated according to the inspection result of the vision means to adjust the alignment direction so that the object to be measured can be introduced into the pocket 105a of the transfer plate 105 in a predetermined direction. Here, the mounting groove 141 of the correction unit 140, for example, only the operation of placing a predetermined jig (not shown), for example, the SMD-type crystal oscillator of the 7050 standard and SMD-type crystal oscillator of the 5032 standard can be introduced in a compatible manner. .

The measured object whose alignment direction is adjusted by the correction unit 140 is picked up by the fourth suction pin 142, is put into the second alignment jig 145, and the edge thereof is guided. Finally, the object to be aligned in the second alignment jig 145 is picked up by the insert pin 146 and inserted into the pocket 105a of the transfer plate 105.

The first adsorption pin 121, the second adsorption pin 127, the third adsorption pin 136, the fourth adsorption pin 142, and the insert pin 146 are lifted together to pick up and insert the object to be measured. It is desirable to move horizontally and be installed integrally. In addition, the suction pins 121, 127, 136, 142 and the insert pin 146 are elastically biased downward by the elastic body 147 to buffer the object to be picked up as shown in FIG. 5. It is preferable to install it. In the first suction pin 121, the second suction pin 127, the third suction pin 136, the fourth suction pin 142 and the insert pin 146, the nozzle 149 is a pin body 148 It is mounted on the bottom of the), and communicates with the air line (A) connected to the pneumatic device (not shown), for example, by selectively receiving the air suction force through the solenoid valve (not shown) to adsorb the object to be measured. As such, a conventional technical configuration can be adopted as the adsorption pin for selectively adsorbing the object to be measured using the suction force of the air, and thus a detailed description thereof will be omitted. The first adsorption pin 121, the second adsorption pin 127, the third adsorption pin 136, the fourth adsorption pin 142, and the insert pin 146 are lifted and moved in a state in which the object to be measured is adsorbed. As a mechanism for driving to perform the operation, it is preferable that the transfer blocks 152 and 155 and the cam mechanism 156 described later are adopted.

The measurement module array 111 includes a plurality of measurement modules 110 disposed to correspond to each thermoelectric module 100. The measurement module array 111 selectively lowers the object to be transferred to the measurement point of the thermoelectric module 100 every one pitch rotation of the transfer plate 105 to collectively perform temperature characteristic measurement. Here, the measurement point is preferably set to approximately the second half point of the thermoelectric module 100 so that the object to be measured has a sufficient temperature settling time before the measurement.

Preferably, the transfer plate 105, the center block 106 is installed so as to be elevated, and hinged to the center block 106, the support arm 112 is disposed radially to correspond to the thermoelectric module 100. And a position adjusting unit 113 at an end of the support arm 112, and each of the measuring modules 110 constituting the measuring module array 111 is the position adjusting unit 113 as shown in FIG. 6. ) Is mounted.

FIG. 7 illustrates the configuration of the position adjusting unit 113 for finely adjusting the position of the measurement module 110 with respect to the pocket 105a of the transfer plate 105. Referring to FIG. 7, the position adjusting unit 113 may include a bracket 113a attached to the support arm 112, a movable block installed through the first guide pin 113b and the second guide pin 113c. 113d), the movable frame 113e on which the measurement module 110 is mounted, and the first adjusting screw 113f and the first adjustment screw for adjusting the movable frame 113e to two axes perpendicular to each other with respect to the bracket 113a. Two adjusting screws 113g are provided.

The pair of first guide pins 113b are fixed to the bracket 113a, and the movable block 113d is slidably installed along the first guide pins 113b. In addition, the pair of second guide pins 113c are disposed and fixed to the movable frame 113e to be orthogonal to the first guide pins 113b, and are slidably installed while penetrating through the movable block 113d. .

At the edge of the movable frame 113e, a fastening member 113h having a rod shape protrudes at a predetermined interval, and the measurement module 110 is mounted at the end of the fastening member 113h.

The first adjusting screw 113f is fastened to the movable block 113d while being constrained to be rotated in place on one side of the bracket 113a to move the front and rear of the movable block 113d along the first guide pin 113b during rotation. Increase At this time, the movable frame 113e is integrally moved with the movable block 113d via the second guide pin 113c. As a result, the movable frame 113e and the measuring module are driven by the first adjusting screw 113f. The position of the 110 is adjusted in the width direction of the pocket 105a of the transfer plate 105.

The second adjusting screw 113g is fastened to the movable block 113d while being constrained to rotate in place on one side of the movable frame 113e to rotate the second guide pin 113c with respect to the movable block 113d. Advance back and forth. At this time, since the movable frame 113e moves together with the second guide pin 113c, as a result, the position of the movable frame 113e and the measuring module 110 is transferred by the second adjusting screw 113g. The lengthwise direction of the pocket 105a of the 105 is adjusted.

Preferably, the measurement module 110 mounted on the movable frame 113e may employ a conventional measurement circuit module having a predetermined terminal pin 113p electrically contacting an electrode of the object to be measured. For example, when the measured object is a SMD-type crystal oscillator, the measurement module 110 may include a circuit unit capable of measuring frequency characteristics, load characteristics, and the like in a corresponding temperature environment. In addition, the measurement module 110 may further include a conventional write circuit unit capable of recording data with respect to a memory, such as TCXO (Temperature Compensated Crystal Oscillator), DTCXO (Temperature Compensated Crystal Oscillator), and VCXO (Voltage Controlled Crystal Oscillator). The data write function can be supported for the measured object that can store data.

As shown in FIG. 8, the measurement module 110 may be covered by an isolation cover 165 having an atmosphere of inert gas, thereby preventing frost from being caused due to a temperature difference by the thermoelectric module 100. Preferably, the isolation cover 165 is provided corresponding to each measurement module 110 to isolate each measurement zone. In the isolation cover 165, a gas diffusion tube 167 having a through hole 166 is introduced at a predetermined interval so that the inert gas is evenly spread therein, and the gas diffusion tube 167 is directly connected to the measurement module 110. A porous member 168 corresponding to, for example, a sponge, is provided to cover the gas diffusion pipe 167 to prevent the exposure.

On the other hand, the object to be supplied to the transfer plate 105 is subjected to a characteristic test while sequentially passing through each measurement zone with the rotation of the transfer plate 105, the test object is completed in the final measurement zone is taken out Good and defective items are sorted by means and stored in the object-to-be-measured unit.

As shown in FIG. 9, the take-out means may include a first transfer block 152 and horizontally slide between the transfer plate 105 and the object receiving unit 160, and at least one take-out pin 150. The second transfer block 155 is fixed and installed to be elevated relative to the first transfer block 152, and the take-out pin 150 picks up the object to be measured from the transfer plate 105 to receive the object to be measured. It is preferable to have a cam mechanism 156 to provide a feed force to the first transfer block 152 and the second transfer block 155 to move to the side.

The first transfer block 152 is installed to slide on the horizontal rail 153 provided between the transfer plate 105 and the object receiving unit 160 when the cam mechanism 156 is operated, and the second transfer block 155 is provided. ) Is installed to move up and down along the vertical rail 154 provided in the first transfer block 152.

The cam mechanism 156 includes a link 157 which reciprocates in a predetermined angle range about a rotation axis to provide a transfer force to the first transfer block 152 and the second transfer block 155. The link 157 is connected to the second transfer block 155 to raise and lower the second transfer block 155 during rotation and to provide a horizontal transfer force to the first transfer block 152. Here, in particular, since the first transfer block 152 slides on the horizontal rail 153, the load applied to the cam mechanism 156 may be reduced.

As shown in FIG. 10, when the cam mechanism 156 is operated, the first transfer block 152 is horizontally transferred by the link 157, and the second transfer block 155 moves up and down.

The first transfer block 152, the second transfer block 155, and the cam mechanism 156 may include the first suction pin 121, the second suction pin 127, the third suction pin 136, and the first suction block 152. It may be used as a driving mechanism for lifting and transporting the four suction pins 142 and the insert pin 146.

The plurality of ejection pins 150 are provided in a row to support a high speed ejection operation irrespective of the separation distance between the transfer plate 105 and the object receiving unit 160 to be integrated with the second transfer block 155. Will move. Here, the mounting jig 151 may be interposed between the ejection pin 150 and the ejection pin 150 to temporarily insert and align the object to be measured so as to deliver the object to the adjacent ejection pin 150.

The object to be delivered to the object-to-be-measured unit 160 by the extraction pin 150 is guided by a sorting member 158 that is selectively redirected according to a quality state and is introduced into the corresponding storage port. do.

Then, the operation of the temperature characteristic measurement system according to the preferred embodiment of the present invention will be described.

Measured objects that are input to the hopper 114, for example, SMD-type crystal oscillators, are checked and sorted by the feeder 115, and are sequentially transferred to the stopper 120 along the transport track 118. . The measured object entered into the stopper 120 is input to the first alignment jig 125 by the first adsorption pin 121 and undergoes a direction alignment process, and then the support plate 130 by the second adsorption pin 127. It is mounted on the) and supplied to the photographing area under the camera 135 of the vision means.

The vision means checks the alignment direction by performing an image reading on the objects to be sequentially supplied as the support plate 130 rotates.

The object to be checked by the vision means is introduced into the correction unit 140 by the third suction pin 136 and undergoes a selective direction correction process. Here, the correction unit 140 is selectively rotated by 180 degrees according to the inspection result of the vision means to adjust the alignment direction so that the object to be measured in the predetermined direction into the pocket 105a of the transfer plate 105.

The measured object whose direction is adjusted in the corrector 140 is put into the second alignment jig 145 by the fourth suction pin 142 and aligned, and then the transfer plate 105 is inserted by the insert pin 146. Are sequentially inserted into the pocket 105a of the metal block 102 of the thermoelectric module array 101.

Measured objects supplied to the pocket 105a of the transfer plate 105 through the above process are rotated by a pitch integrally with the transfer plate 105 to measure temperature characteristics while sequentially passing through the measurement zones of different temperature sections. Go through the process. Here, the temperature environment of the multi-section for measuring the temperature characteristic is provided by the thermoelectric module array 101 for supporting the object to be measured, and the characteristic measurement in the corresponding temperature section is carried by the transfer plate (corresponding to each thermoelectric module 100). 105) is performed by the measurement module 110 provided on the top.

The object to be tested in the final measurement zone through the plurality of measurement zones is sorted into good or bad by the taking-out means and stored in the measurement object accommodating unit 160.

Although the invention has been described above by means of limited embodiments and drawings, the invention is not limited thereto and will be described below by the person skilled in the art and the technical spirit of the invention. Of course, various modifications and variations are possible within the scope of the claims.

As described above, the temperature characteristic measurement system of the electronic component according to the present invention provides the following effects.

First, since it is possible to collectively measure the inherent characteristics of the object to be measured for a plurality of temperature ranges, it is possible to improve work speed and reduce man-hours.

Second, the tester can reduce the frequency of test error by checking and selecting the standard or reversal of the measurement object and supplying it to the measurement unit. For example, the stopper, alignment jig, and correction unit can supply two or more types of measurement objects. Since it has a structure, it is effective to equip several measuring devices.

Third, since the position of the measurement module can be finely adjusted X-Y in the width and length direction of the object under test, alignment between the electrode of the object and the measurement terminal pin is easy.

Fourth, frost can be prevented from occurring by supplying an atmosphere gas which suppresses a sudden temperature difference to each thermoelectric module and its surroundings.

Fifth, since the movable block for horizontally transporting the suction pin or the take-out pin for picking up the object to be configured to slide on the horizontal rail can reduce the load on the cam mechanism.

Sixth, in installing and aligning the measurement module, unlike the conventional method, no expensive L / M guide, return spring, micrometer head, etc. are required, so the structure is simple, distance setting is easy, there is no shaking, and cost is reduced. It can be effective.

Seventh, the horizontal alignment between each thermoelectric module is easy to set up and repair the equipment.

Claims (15)

A thermoelectric module array in which a plurality of thermoelectric modules are arranged in a circle so as to provide measurement zones having different temperature ranges; A transfer plate installed on the thermoelectric module array so as to rotate by a pitch and having pockets into which the object to be measured is inserted at a predetermined interval so as to contact the surface of the thermoelectric module; Supply means for supplying an object to be measured into a pocket of the transfer plate; And A measurement module array having a plurality of measurement modules arranged to correspond to the thermoelectric module, and collectively performing temperature characteristic measurements on the objects to be transferred to the measurement point of the thermoelectric module at every pitch rotation of the transfer plate; Temperature characteristic measurement system comprising a. The thermoelectric module of claim 1, wherein A metal block providing a support surface to which the object under test is in contact; At least one thermoelectric element whose one surface is in contact with the metal block; And And a cooling block in contact with the other surface of the thermoelectric element and having an internal space into which coolant is introduced. The method of claim 1, wherein the supply means, A feeder which selects a size and a direction of the object to be supplied from the hopper and transfers the same to a transport track; A stopper provided at an end of the transfer track and having a concave groove into which the object to be measured enters; A first alignment jig for aligning directions by guiding an edge of the object to be delivered from the stopper by a first suction pin; A support plate having a pocket into which the object to be delivered delivered from the first alignment jig is input by a second suction pin; Vision means for installing the camera on an upper portion of the support plate to check an alignment direction of the object to be inserted into the pocket of the support plate; A correction groove which is formed by a third suction pin into which a measurement target delivered from the support plate is input and is selectively rotated according to the inspection result of the vision means to adjust the alignment direction of the measurement target; A second alignment jig for aligning directions by guiding the edges of the object to be delivered from the corrector by a fourth suction pin; And And an insert pin for picking up the workpiece to be aligned in the second alignment jig and inserting the measured object into the pocket of the transfer plate. The method of claim 3, wherein the feeder, A guide rail for inducing vibration to be applied to the transport track when the vibration is applied; A size adjusting unit provided with a control plate for limiting a passing height and a width of the object to be measured running along the guide rail; And And an inverting unit which selectively blows air to the inverted object to be returned to its original state among the objects to be passed through the size adjusting unit. The method of claim 3, The stopper is characterized in that at least two or more recessed grooves having different sizes are provided at the edge of the body bracket, the body bracket is detachably installed so that any one recessed groove can be selected and aligned with the transport track. Temperature characteristic measurement system. The method of claim 3, And the first alignment jig includes two pairs of alignment jaws that cross each other perpendicularly to guide the slope of the object under test by advancing in the direction of the object to be supplied. The method of claim 3, The support plate has at least two types of pockets arranged circularly at regular intervals, and the temperature characteristic measurement system, characterized in that the pockets are installed so as to rotate by one pitch so that the pockets are sequentially aligned in the forward and downward direction of the camera. The method of claim 3, The first adsorption pin, the second adsorption pin, the third adsorption pin, the fourth adsorption pin, and the insert pin are installed to be elevated and horizontally transported, and are elastically biased downward to cushion the object to be measured when being picked up. Temperature characteristic measurement system. The method of claim 1, A center block installed on the transfer plate so as to be elevated; A support arm hinged to the center block and disposed radially to correspond to the thermoelectric module; And And a position adjusting part fixed to the end of the support arm, And the measuring module is mounted to the position adjusting part so as to be adjustable with respect to the pocket of the transfer plate. The method of claim 9, wherein the position adjusting unit, A bracket attached to the support arm; A pair of first guide pins fixed to the bracket; A movable block slidably installed along the first guide pin; A pair of second guide pins disposed perpendicular to the first guide pin and penetrating the movable block so as to slide with respect to the movable block; And A movable frame having a fastening member to which the measurement module is mounted and fixed to the second guide pin; A first adjustment screw which is fastened to the movable block while being restrained on one side of the bracket, and adjusts the position of the movable frame in the width direction of the pocket of the transfer plate by rotating the movable block forward and backward along the first guide pin during rotation; ; And A second adjustment which is fastened to the movable block while being restrained on one side of the movable frame, and adjusts the position of the movable frame in the longitudinal direction of the pocket of the transfer plate by advancing and retracting the second guide pin with respect to the movable block when rotating; A temperature characteristic measurement system comprising a; screw. The method of claim 1, A support block supporting the thermoelectric module array from the bottom; A first bolt for fixing a thermoelectric module with respect to the support block, the screw hole being recessed a predetermined depth in the axial direction from the tip thereof; And And a second bolt inserted into the screw hole of the first bolt to press the thermoelectric module to level the adjacent thermoelectric modules. The method of claim 1, An isolation cover covering the measurement module to isolate each measurement zone; A gas diffusion tube which is introduced into the isolation cover and has a through hole formed at a predetermined interval so that inert gas is evenly distributed in the isolation cover; And And a porous member covering the gas diffusion tube to prevent the gas diffusion tube from being directly exposed to the measurement module. The method of claim 1, And a taking-out means for separating out the object to be measured in the final measurement zone into good and defective items. The method of claim 13, wherein the extraction means, At least one ejection pin; A first transfer block slidably installed on a horizontal rail provided between the transfer plate and the measurement object receiving unit, and having a vertical rail fixed to one side of the body; A second transport block installed to be elevated along the vertical rail and supporting the ejection pins; And And a cam mechanism for rotating the second transfer block by lifting the second transfer block and horizontally sliding the first transfer block for the pick-up and transfer operation of the takeout pin. Characterized in the temperature characteristic measurement system. The method of claim 1, The measurement module further comprises a write circuit unit for recording data for the object to be measured.

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