TWI395950B - Reciprocating test module and test system thereof - Google Patents

Description

Linear reciprocating test module and test system thereof

The invention relates to a test system, in particular to a linear reciprocating test module and a linear reciprocating test system suitable for a motion sensor.

A motion sensor (or dynamic sensor) is an element that converts a motion state (such as a tilt angle) into a corresponding electronic signal, which is gradually used in modern electronic or electromechanical devices, such as games. Controller, mobile phone, digital music player (MP3), camera, personal digital assistant (PDA), can implement various sports (such as linear reciprocating, acceleration, rotation, etc.) related applications to promote the authenticity and convenience of use Sexual or functional diversity.

Today's motion sensors are generally fabricated as semiconductor circuits using semiconductor process technology coupled with electromechanical technologies such as micro-electro-mechanical systems (MEMS). As with the general integrated circuit, a final test is required for the packaged motion sensor to ensure its correct function. In addition to testing the function and electrical parameters, the correctness of the motion state (such as the tilt angle) is also tested.

However, the test system of the traditional motion sensor has not only a few test items for the test of the motion state, but also a different motion test machine for each motion state test item. In this way, not only the complexity of the test system design and the cost increase, but also the test throughput cannot be improved. In view of this, it is urgent to propose various motion state testing devices of the motion sensor, so that it can be integrated into other testing devices, which not only reduces the cost, simplifies the design, but also increases the test flexibility to improve the test throughput.

One of the objects of the present invention is to provide a linear reciprocating test module and a linear reciprocating test system suitable for a motion sensor. Through the modular design, the linear reciprocating test module can be integrated into the traditional test system and can be elastically replaced with other motion test modules. This not only reduces costs, simplifies design, but also increases test flexibility and diversity for improved test throughput.

According to an embodiment of the invention, the linear reciprocating test module includes at least one receiving device (for example, a slot) for temporarily accommodating a device under test (for example, a motion sensor). The linear reciprocating test module further includes a linear reciprocating mechanism for linearly reciprocating movement of the device under test. In this embodiment, the linear reciprocating mechanism includes a turntable, a sliding seat, and a connecting rod. When the turntable rotates, the sliding seat is driven by the connecting rod to make a linear reciprocating motion along the track. The linear reciprocating test module combines the sorting machine and the tester to form a linear reciprocating test system. Among them, the sorting machine picks up and places the tested components to the linear reciprocating test module, and the testing machine controls the linear reciprocating test module and the sorting machine by the transmission line.

In another embodiment, the linear reciprocating mechanism further includes a first inverting mechanism controlled by the first driving device (eg, a motor) such that the device under test is flipped about the first axis; and includes a second inverting mechanism, It is controlled by a second drive (such as a motor) such that the device under test is flipped about the second axis. Thereby, the device under test can be simultaneously flipped in angle during linear reciprocating motion.

The system block diagram of the first figure shows a linear reciprocating test system 1 according to an embodiment of the present invention for testing a linear reciprocating motion of a packaged motion sensor (or dynamic sensor). A motion sensor is an element that converts a motion state (eg, a tilt angle) into a corresponding electronic signal. Depending on the application, the motion sensor can be an accelerometer, a gyroscope, a pressure sensor, or the like. Motion sensors have a variety of construction principles. In this embodiment, motion sensors manufactured by microelectromechanical systems (MEMS) technology are exemplified.

In the present embodiment, the linear reciprocating test system 1 mainly includes a linear reciprocating test module 10, a sorting sorting machine 12 and a tester 14. The linear reciprocating test module 10 has one or more accommodating devices 100 (for example, slots) for temporarily accommodating one or more device under test (DUT), and is subjected to a linear reciprocating mechanism 101. The measuring element performs a linear reciprocating motion. In addition, the linear reciprocating test module 10 can also include a heating device 102 for controlling the temperature of the device under test. The sorting sorting machine 12 includes a pick/place device 120 for picking up and placing the device under test to the linear reciprocating test module 10 for testing, and retrieving the device under test after the test is completed; Next, the sorting means 121 classifies the elements to be tested based on the test results. The test machine 14 mainly includes a test head 140 containing test-related circuits for controlling the linear reciprocating test module 10 and the sorting machine 12 described above via the transmission lines 16, 18. In detail, the testing machine 14 first informs the sorting sorting machine 12 through the transmission line 18 to pick up the tested component and place it in the linear reciprocating test module 10; then, the testing machine 14 notifies the linear reciprocating test module 10 through the transmission line 16. The linear reciprocating motion is performed; the output signal of the device under test is transmitted back to the testing machine 14 via the transmission line 16; finally, the testing machine 14 notifies the sorting machine 12 to retrieve the component under test and classify it. By linear reciprocating test system 1, the linear acceleration of the measured component (generally referred to as g-force or g-value acceleration), which represents the acceleration of an object relative to gravitational acceleration, is expressed in units of g. The force is approximately equal to 9.8 m/s square). For the measurement of acceleration, please refer to another patent application filed by the applicant at the same time, entitled "Dynamic Test Equipment and Method", the details of which are not described here.

Compared with the conventional exercise test system, the linear reciprocating test system 1 disclosed in the embodiment of the present invention has at least the following advantages. In this embodiment, after the linear reciprocating test module 10 is modularized, when other kinds of motion tests are to be performed, only the linear reciprocating test module 10 needs to be replaced by other motion test modules, which is almost or completely unnecessary. The design of the sorting sorting machine 12 is changed. In other words, you can use a single and traditional (non-sports test) sorting machine to match individual motion test modules, which not only has flexibility and test diversity, but also reduces costs (other motion test modules) The group can refer to other patent applications filed by the applicant at the same time, entitled "Flip test module and its test system", "Rotary test module and its test system", the details of which are not described here. In contrast to the traditional sports test system, the inspection classification, motion test and test head system are designed as a whole, so different motion test systems are required for different motion tests.

The perspective view of the second diagram shows the linear reciprocating test system 1 of the embodiment of the present invention, and the perspective view of the third diagram shows the detailed structure of the linear reciprocating test module 10, and the perspective view of the fourth figure shows the linear reciprocating test mode. Partially finer structure of group 10. The same constituent elements of the drawings as those of the first figure are denoted by the same symbols.

As shown in the second figure, the linear reciprocating test system 1 mainly includes a linear reciprocating test module 10, a sorting sorting machine 12 and a tester 14. The linear reciprocating test module 10 has a component slot 100 for temporarily accommodating a device under test (DUT). Located between the slot 100 and the rest of the linear reciprocating test module 10 is a device interface board (DIB) 103, which is also commonly referred to as a DUT board, a performance board, or a load board. Board (load board). The component interface panel (DIB) 103 primarily provides an electrical interface for transmitting signals from the device under test through the electrical interface to the remainder of the linear reciprocating test module 10.

As shown in the third figure, in addition to the slot 100 and the component panel 103, the linear reciprocating test module 10 of the embodiment of the present invention further includes a base 104, a lifting mechanism 105, a test carrier 106, a linear reciprocating mechanism 101, Bracket 108 and alignment plug 109. The lifting mechanism 105 is disposed between the base 104 and the test stage 106 for lifting and lowering the test stage 106 and the components disposed thereon. In the present embodiment, before the linear reciprocating test is performed, the lifting mechanism 105 first raises the test stage 106 (and the various components disposed thereon) to facilitate the sorting machine 12 to place the device under test in the insertion. Inside the slot 100. When the device under test is placed properly, the lifting mechanism 105 lowers the test stage 106. After the linear reciprocating test is completed, the lifting mechanism 105 needs to raise the test stage 106 again to facilitate the sorting machine 12 to retrieve the device under test. When the lifting mechanism 105 is raised and lowered, the alignment pin 109 can be used to assist the alignment between the linear reciprocating test module 10 and the sorting machine 12 . Although the present embodiment achieves the pick-and-place of the device under test in the manner of raising and lowering the linear reciprocating test module 10, in other embodiments, the method of assuring and descending the sorting machine 12 may be employed, or may be simultaneously moved. The linear reciprocating test module 10 and the sorting machine 12 are selected to achieve the pick-and-place of the device under test.

Continuing to refer to the third figure and referring to the fourth figure, in the embodiment, the test stage 106 is provided with a linear reciprocating mechanism 101, which is a crank slider structure, mainly comprising a turntable (for example, a counterweight) 1010, The sliding seat 1011 and the connecting rod 1012. The turntable 1010 and the slide base 1011 are connected to the link 1012 through the movable shafts 1013A/1013B, respectively. The component panel 103 and the accommodating device 100 are disposed on the sliding base 1011. When the linear reciprocating motion is performed, the turntable 1010 is rotated about the rotating shaft 1014 by the driving device (for example, a motor, not shown), and the sliding seat 1011 is driven by the connecting rod 1012, so that the sliding seat 1011 (and the tested thereon) The component is capable of linear reciprocating motion along the track 1015. In other words, with the crank slider structure, the circular motion of the turntable 1010 can be converted into a linear reciprocating motion of the slide base 1011, so that the device under test on the slide base 1011 is accelerated in both directions.

The perspective view of the fifth diagram shows a linear reciprocating test module 10A according to another embodiment of the present invention. This embodiment incorporates the inverting mechanism in the linear reciprocating mechanism 101 of the previous embodiment so that the device under test can be simultaneously inverted in angle during linear reciprocating motion. For details of the flipping mechanism, refer to another patent application filed by the applicant at the same time, entitled "Flip Test Module and Test System". As shown in the fifth figure, the inverting mechanism is provided on the sliding base 1011, which mainly comprises a bracket 108, a (first/second) turning mechanism 101A/101B, and a (first/second) driving device 107A/107B, and The device under test that is housed in the slot 100 is fixed to the second inverting mechanism 101B by the component media panel 103. Wherein, the first inverting mechanism 101A is inverted by the first driving device 107A (for example, a stepping motor) around the first axial direction. The second inverting mechanism 101B (provided inside the first inverting mechanism 101A) is inverted about the second axial direction by the control of the second driving device 107B (for example, a stepping motor).

In the embodiment of the present invention, in the linear reciprocating test, the component to be tested is further heated and maintained at a predetermined temperature or temperature range. As described above, since the linear reciprocating test module 10 is modularized in this embodiment, the device under test is no longer located in the sorting sorting machine 12 as in the conventional testing system, but in the linear reciprocating test module 10 Inside. In order to provide high temperature to the component under test, a conventional heating platform can be used to maintain the temperature state of the device under test. However, in a preferred embodiment of the present invention, the heating device 102 is installed in the slot 100, as shown in the perspective view of FIG. 6A, and the sixth B diagram shows the cross-sectional line 6B in the sixth A diagram. Sectional view of -6B'. In the present embodiment, the heating device 102 is disposed below the device under test 19 and includes a heater 102A (eg, one or more heater wires of high resistance material). Additionally, a temperature sensor 102B (eg, a thermal couple) is provided between (or near) the heater 102A for sensing temperature.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; all other equivalent changes or modifications which are not departing from the spirit of the invention should be included in the following Within the scope of the patent application.

1. . . Linear reciprocating test system

10. . . Linear reciprocating test module

100. . . Storing device (slot)

101. . . Linear reciprocating mechanism

1010. . . Turntable (balance hammer)

1011. . . Sliding seat

1012. . . link

1013A/1013B. . . Active axis

1014. . . Rotating shaft

1015. . . track

101A. . . First turning mechanism

101B. . . Second turning mechanism

102. . . heating equipment

102A. . . Heater

102B. . . Temperature sensor (thermocouple)

103. . . Component Interface Panel (DIB)

104. . . Pedestal

105. . . Lifting mechanism

106. . . Test stage

107A. . . First drive

107B. . . Second drive

108. . . support

109. . . Alignment bolt

12. . . Check sorting machine (handler)

120. . . Pick/place device

121. . . Sorting device

14. . . Test machine

140. . . Test head

16. . . (first) transmission line

18. . . (second) transmission line

19. . . Measured component

The system block diagram of the first diagram shows a linear reciprocating test system in accordance with an embodiment of the present invention.

The perspective view of the second diagram shows a linear reciprocating test system of an embodiment of the present invention.

The perspective view of the third figure shows the detailed structure of the linear reciprocating test module of the second figure.

The perspective view of the fourth figure shows a partial finer structure of the linear reciprocating test module of the third figure.

The perspective view of the fifth diagram shows a linear reciprocating test module according to another embodiment of the present invention.

The perspective view of Figure 6A shows the slot in which the heating device is built.

Figure 6B shows a cross-sectional view along section line 6B-6B' in Figure 6A

1. . . Linear reciprocating test system

10. . . Linear reciprocating test module

100. . . Storing device (slot)

101. . . Linear reciprocating mechanism

102. . . heating equipment

12. . . Check sorting machine (handler)

120. . . Pick/place device

121. . . Sorting device

14. . . Test machine

140. . . Test head

16. . . Transmission line

18. . . Transmission line

Claims (21)

A linear reciprocating test module comprises: at least one receiving device for temporarily accommodating a device under test; a linear reciprocating mechanism for linearly reciprocating movement of the device under test; and a component interface panel (DIB) It provides an electrical interface for transmitting the signal of the device under test to the rest of the linear reciprocating test module. The linear reciprocating test module of claim 1, wherein the receiving device comprises a slot. The linear reciprocating test module of claim 1, wherein the device under test is a motion sensor. The linear reciprocating test module of claim 1, wherein the linear reciprocating mechanism comprises: a turntable that can be driven to rotate; a sliding seat that can move along an orbit; and a connecting rod to move The shaft is respectively connected with the turntable and the sliding seat; wherein when the rotating wheel is rotated, the sliding seat is driven by the connecting rod to linearly reciprocate along the track. The linear reciprocating test module of claim 4, wherein the linear reciprocating mechanism further comprises: a first driving device; and a first inverting mechanism disposed on the sliding seat, the first inverting mechanism is The control of the first drive device causes the device under test to be turned around the first axis. The linear reciprocating test module of claim 5, wherein the linear reciprocating mechanism further comprises: a second driving device; and a second inverting mechanism disposed on the sliding seat, the second inverting mechanism is Control of the second drive means causes the device under test to be flipped about the second axis. The linear reciprocating test module of claim 1, further comprising a lifting mechanism for raising or lowering the linear reciprocating mechanism. The linear reciprocating test module according to claim 1 further includes a heating device for controlling the temperature of the device under test. The linear reciprocating test module of claim 8, wherein the heating device is disposed in the accommodating device and includes: At least one heater; and a temperature sensor for sensing temperature. A linear reciprocating test system comprising: a linear reciprocating test module, comprising at least one receiving device for temporarily accommodating a device under test, and a linear reciprocating mechanism for linearly reciprocating movement of the device under test; a component interface panel (DIB) that provides an electrical interface for transmitting signals of the device under test to the rest of the linear reciprocating test module; a selection sorter for picking up and placing And placing the tested component to the linear reciprocating test module; and a tester for respectively controlling the linear reciprocating test module and the sorting and sorting machine. The linear reciprocating test system of claim 10, wherein the above-mentioned sorting and sorting machine comprises: a pick/place device for picking up and placing the device under test to the straight line Reciprocating the test module for testing, and retrieving the device under test after the test is completed; and a sorting device that classifies the device under test according to the test result. The linear reciprocating test system of claim 10, wherein the test machine comprises a test head. The linear reciprocating test system according to claim 10, further comprising: a first transmission line, wherein the test machine can control the linear reciprocating test module; and a second transmission line, so that the test machine can be controlled The sorting machine is selected. The linear reciprocating test system of claim 10, wherein the linear reciprocating mechanism comprises: a turntable that can be driven to rotate; a sliding seat movable along an orbit; and a connecting rod to the movable shaft And connecting to the turntable and the sliding seat respectively; wherein when the rotating wheel is rotated, the sliding seat is driven by the connecting rod to linearly reciprocate along the track. The linear reciprocating test system of claim 14, wherein the linear reciprocating mechanism further comprises: a first driving device; The first turning mechanism is disposed on the sliding seat, and the first turning mechanism is controlled by the first driving device to cause the device under test to be turned around the first axial direction. The linear reciprocating test system of claim 15, wherein the linear reciprocating mechanism further comprises: a second driving device; and a second inverting mechanism disposed on the sliding seat, the second inverting mechanism being subjected to the The control of the two driving means causes the device under test to be turned around the second axis. The linear reciprocating test system according to claim 10, further comprising a lifting mechanism for raising or lowering the linear reciprocating mechanism. The linear reciprocating test system according to claim 10, further comprising a heating device for controlling the temperature of the device under test. The linear reciprocating test system of claim 18, wherein the heating device is disposed in the receiving device and comprises: at least one heater; and a temperature sensor for sensing the temperature. A linear reciprocating test module comprising: a susceptor; a test cradle; a lifting mechanism disposed between the pedestal and the test gantry for lifting the test gantry; a component dielectric panel (DIB) disposed on the test gantry The component panel is provided with at least one slot for temporarily accommodating a device under test, and the component panel provides an electrical interface for transmitting the signal of the device under test to the rest of the linear reciprocating test module. a turntable that is driven to rotate; a slide seat movable along an orbit; and a link connected to the turntable and the slide base by a movable shaft; wherein the turntable is rotated by The link drives the sliding seat to linearly reciprocate along the track. The linear reciprocating test module of claim 20, further comprising: a first inverting mechanism and a first motor disposed on the sliding seat, wherein the first inverting mechanism is controlled by the first motor The device under test is turned around the first axial direction; and the second inverting mechanism and the second motor are disposed on the sliding seat, wherein the second inverting mechanism is controlled by the second motor to enable the device under test to be Flip around the second axis.