CN219715254U - Detecting and alarming device for chip position in automatic test - Google Patents
Detecting and alarming device for chip position in automatic test Download PDFInfo
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- CN219715254U CN219715254U CN202321286398.0U CN202321286398U CN219715254U CN 219715254 U CN219715254 U CN 219715254U CN 202321286398 U CN202321286398 U CN 202321286398U CN 219715254 U CN219715254 U CN 219715254U
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- 238000012360 testing method Methods 0.000 title claims abstract description 86
- 239000013307 optical fiber Substances 0.000 claims abstract description 44
- 238000013461 design Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model relates to a device for detecting and alarming the position of a chip in an automatic test, which is based on an automatic test desktop and combines with an industrial control board design to detect whether the position of the chip in a test socket is accurately placed or not, and a correlation optical fiber and an optical fiber amplifier are utilized to detect, so that when a manipulator automatically picks and places the chip in the socket, the accurate position of the chip is ensured, if the error of the chip placement position occurs, the alarm is triggered in time, and test equipment is automatically suspended at the same time, so that the chip is prevented from being crushed by the manipulator, and normal test is resumed after the operation of a technician. The detecting and alarming device solves the problem that the automatic testing equipment cannot detect whether the chip position is deviated or not, and can avoid the problem that the chip is damaged due to the deviation of the chip placement position during automatic testing. And the quality problem of the chip for automatic test is improved.
Description
Technical Field
The utility model relates to a semiconductor structure process manufacturing technology, in particular to a detection and alarm device for chip positions in automatic tests.
Background
The chip automatic test equipment (manipulator) is suitable for chip automatic tests of various packaging forms such as QFN/QFP/BGA/LGA/PGA/SOP and the like, the size of the chip automatic test equipment is smaller than 3mmX3mm to 65mmX65mm, and meanwhile, a high-low temperature test environment is provided for the chip automatic test, so that the chip automatic test equipment is widely applied to the field of integrated circuit test.
Under normal conditions, a manipulator of the automatic test equipment can take out the chip from the Tray to be tested, and the chip is placed in the test socket for testing after being pre-cooled and preheated at high and low temperatures. After the test, the chips are placed in different Tray discs according to the test result by a mechanical arm.
The chip placement position in the process is positioned only by means of the guiding function of mechanical point positions/hardware debugged by equipment technicians. If deviation of the positions occurs in the process, the device cannot judge whether the placement positions of the chips are accurate, and when the test arm is pressed down, the chips are damaged.
Disclosure of Invention
Therefore, the utility model provides a detecting and alarming device for accurately placing the chip in the test socket, and the correlation optical fiber and the optical fiber amplifier are utilized for detecting, so that when the manipulator automatically picks and places the chip in the socket, the accurate chip position is ensured, if the chip placement position is wrong, the alarm is triggered in time, the test equipment is automatically paused at the same time, the chip is prevented from being crushed by the manipulator, and the normal test is resumed after the operation of a technician.
The utility model relates to a detection and alarm device for a chip position in an automatic test, which is based on an automatic test table top and combines with an industrial control board design, and comprises a detection module, an industrial control board, automatic test equipment and an alarm buzzer; the automatic test equipment comprises a test mechanical arm and a test socket, wherein the photoelectric sensor is arranged on one side of the test mechanical arm, and meanwhile, a power supply and data transmission connection are arranged between the photoelectric sensor and the industrial control board; the correlation optical fibers are arranged in the optical fiber holes on the left side and the right side of the test socket, the control ends of the correlation optical fibers are connected with the optical fiber amplifiers in a data transmission manner, and meanwhile, the optical fiber amplifiers are also connected with an industrial control board in a data and power supply manner; the control and power supply end of the buzzer is connected with the industrial control board, and the automatic test equipment start and stop switch is also connected with the industrial control board.
In one embodiment of the utility model, each hardware in the device takes the industrial control board as the center to carry out design connection, and meanwhile, the industrial control board is also connected with the upper computer through a communication interface, so that the device is convenient to download after programming and writing an operation program.
In one embodiment of the utility model, the power source anode and cathode and the signal of the photoelectric sensor are respectively connected to the anode and cathode of the industrial control board and the input X2.
In one embodiment of the utility model, the positive and negative electrodes of the power supply and the signals of the optical fiber amplifier are respectively connected to the positive and negative electrodes of the industrial control board and the input X4, the other end of the optical fiber amplifier is connected with the correlation optical fiber, wherein the incident end and the receiving end of the correlation optical fiber are on the same horizontal plane to form correlation induction, and the correlation detection chip of the correlation optical fiber is used for testing the flatness in the socket.
In one embodiment of the utility model, the buzzer is connected to the industrial control board output Y10 and COM0 ports, while the buzzer resonant frequency is 3.0+ -0.5 hz.
In one embodiment of the utility model, 24V and COM0 of the industrial control board are connected, while an automated test equipment start-stop switch is connected to the Y11 output of the industrial control board.
Compared with the prior art, the technical scheme of the utility model has the following advantages: the detecting and alarming device solves the problem that the automatic testing equipment cannot detect whether the chip position is deviated or not, and can avoid the problem that the chip is damaged due to the deviation of the chip placement position during automatic testing. And the quality problem of the chip for automatic test is improved.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a block diagram of a system connection of a detection and alarm device for chip position in an automated test according to the present utility model;
FIG. 2 is a block diagram of the hardware connections of the photoelectric sensor and the automated test equipment according to the present utility model;
FIG. 3 is a block diagram of the hardware connections of the fiber amplifier and test socket of the present utility model;
FIG. 4 is a block diagram illustrating the operation of the detecting and warning device according to the present utility model.
Detailed Description
As shown in fig. 1, the present embodiment provides a device for detecting and alarming a chip position in an automated test, wherein the device for detecting and alarming is based on an automated test table and combined with an industrial control board design, and comprises a detection module, an industrial control board, an automated test equipment and an alarm buzzer; the automatic test equipment comprises a test mechanical arm and a test socket, wherein the photoelectric sensor is arranged on one side of the test mechanical arm, and meanwhile, a power supply and data transmission connection are arranged between the photoelectric sensor and the industrial control board; the correlation optical fibers are arranged in the optical fiber holes on the left side and the right side of the test socket, the control ends of the correlation optical fibers are connected with the optical fiber amplifiers in a data transmission manner, and meanwhile, the optical fiber amplifiers are also connected with an industrial control board in a data and power supply manner; the control and power supply end of the buzzer is connected with the industrial control board, and the automatic test equipment start and stop switch is also connected with the industrial control board.
The photoelectric sensor can monitor the running track of the mechanical arm, when the chip is placed in the test socket and the photoelectric sensor does not receive signals, the correlation optical fiber plays a role in detection, when the correlation optical fiber detects the position deviation of the chip, the buzzer is triggered, and a group of signals are given to inform the test equipment to be suspended immediately; when the photoelectric sensor receives signals, the testing arm presses down to perform normal testing, and at the moment, the detection function of the correlation optical fiber is not exerted, so that misjudgment during normal operation is avoided.
Each hardware in the device takes the industrial control board as the center for design connection, and meanwhile, the industrial control board is connected with the upper computer through a communication interface, so that the industrial control board can conveniently write and write an operation program and then download the operation program, wherein the industrial control board adopts JT3U-26MRT of Mitsubishi, and downloads the operation program into the industrial control board after writing and writing the operation program through the upper computer, and each hardware is connected with a corresponding input and output interface to finish respective detection work.
The positive and negative electrodes of the power supply and the signals of the photoelectric sensor are respectively connected to the positive and negative electrodes of the industrial control board and the input X2. Further, as shown in fig. 2, a hardware connection block diagram of the photoelectric sensor and the automatic test equipment is shown, wherein the photoelectric sensor is a loose CX-444 type sensor, the type is a distance setting reflection type, the detection distance is 15-100mm, an adjusting screw is arranged, and the light source intensity can be adjusted according to the distance of the detected object.
The power supply anode and cathode and the signal of the optical fiber amplifier are respectively connected to the anode and cathode of the industrial control board and the input X4, the other end of the optical fiber amplifier is connected with a correlation optical fiber, the incident end and the receiving end of the correlation optical fiber are on the same horizontal plane, correlation induction is formed, and the flatness in the socket is tested by the correlation detection chip of the correlation optical fiber. As shown in FIG. 3, the optical fiber and the hardware connection block diagram with the test socket are shown, the optical fiber amplifier selects the loose FX-300 type amplifier, the NPN output type amplifier, and the sensitivity can be manually adjusted.
The buzzer is connected to the output Y10 and COM0 ports of the industrial control board, the resonance frequency of the buzzer is 3.0+/-0.5 hz, and the buzzer adopts a Huijun high decibel alarm.
The 24V and the COM0 of the industrial control board are connected, and meanwhile, the automatic test equipment start-stop switch is connected to the Y11 output end of the industrial control board. Furthermore, the automatic test equipment is Jin Haitong JHT-6040 series test equipment, the alarm system transmits electric signals between the test equipment, and when abnormality occurs, the industrial control board can timely suspend the automatic test equipment.
The detecting and alarming device of the present embodiment is shown in fig. 4, and the specific workflow is as follows:
s1, after the running program is programmed, downloading the running program into an industrial control board, and starting self-checking work running;
s2: the test mechanical arm takes a test chip and places the test chip in the test socket;
s3, the detection module detects from the vertical direction and the horizontal direction of the test chip simultaneously;
s4: judging whether the automatic placement is normal, and carrying out continuous test or buzzer alarm, so that the technician can adjust and debug conveniently.
The utility model adopts a control program comprising a photoelectric sensor, a correlation optical fiber, an amplifier, an industrial control board, automatic test equipment, a buzzer and an automatic control optical fiber detection alarm device; wherein:
photoelectric sensor: the detection time of the correlation optical fiber is determined by the signals of the photoelectric sensor in order to monitor the running track of the test arm.
Correlation optical fiber, amplifier: the chip position in the test socket is detected, the detection signal is amplified, and the real-time feedback signal is synchronously fed back to the industrial control board.
And (3) a control program: after the detection control system is well programmed by the programming software of GXWorks2, the detection control system is downloaded into an industrial control board, and an automatic test optical fiber detection alarm device which complements each other is completed through the connection of hardware.
The detecting and alarming device avoids the problem of chip damage caused by chip placement position deviation during automatic test, and improves the chip quality of the automatic test.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (6)
1. The device for detecting and alarming the chip position in the automatic test is based on an automatic test table top and combined with an industrial control board design and is characterized by comprising a detection module, an industrial control board, automatic test equipment and an alarming buzzer; the automatic test equipment comprises a test mechanical arm and a test socket, wherein the photoelectric sensor is arranged on one side of the test mechanical arm, and meanwhile, a power supply and data transmission connection are arranged between the photoelectric sensor and the industrial control board; the correlation optical fibers are arranged in the optical fiber holes on the left side and the right side of the test socket, the control ends of the correlation optical fibers are connected with the optical fiber amplifiers in a data transmission manner, and meanwhile, the optical fiber amplifiers are also connected with an industrial control board in a data and power supply manner; the control and power supply end of the buzzer is connected with the industrial control board, and the automatic test equipment start and stop switch is also connected with the industrial control board.
2. The detecting and warning device according to claim 1, characterized in that: each hardware in the device takes the industrial control board as the center for design connection, and meanwhile, the industrial control board is connected with an upper computer through a communication interface, so that downloading after programming and writing operation programs is facilitated.
3. The detecting and warning device according to claim 1, characterized in that: the positive and negative electrodes of the power supply and the signals of the photoelectric sensor are respectively connected to the positive and negative electrodes of the industrial control board and the input X2.
4. The detecting and warning device according to claim 1, characterized in that: the power supply anode and cathode and the signal of the optical fiber amplifier are respectively connected to the anode and cathode of the industrial control board and the input X4, the other end of the optical fiber amplifier is connected with a correlation optical fiber, the incident end and the receiving end of the correlation optical fiber are on the same horizontal plane, correlation induction is formed, and the flatness in the socket is tested by the correlation detection chip of the correlation optical fiber.
5. The detecting and warning device according to claim 1, characterized in that: the buzzer is connected to the output Y10 and COM0 ports of the industrial control board, and the resonance frequency of the buzzer is 3.0+/-0.5 hz.
6. The detecting and warning device according to claim 1, characterized in that: the 24V and the COM0 of the industrial control board are connected, and meanwhile, the automatic test equipment start-stop switch is connected to the Y11 output end of the industrial control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321286398.0U CN219715254U (en) | 2023-05-25 | 2023-05-25 | Detecting and alarming device for chip position in automatic test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321286398.0U CN219715254U (en) | 2023-05-25 | 2023-05-25 | Detecting and alarming device for chip position in automatic test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219715254U true CN219715254U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321286398.0U Active CN219715254U (en) | 2023-05-25 | 2023-05-25 | Detecting and alarming device for chip position in automatic test |
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| Country | Link |
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| CN (1) | CN219715254U (en) |
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2023
- 2023-05-25 CN CN202321286398.0U patent/CN219715254U/en active Active
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