CN218995566U

CN218995566U - Detection device of DVI unit of test system

Info

Publication number: CN218995566U
Application number: CN202222865780.9U
Authority: CN
Inventors: 彭海东; 穆云飞
Original assignee: Nanjing Microbonding Semiconductor Co ltd
Current assignee: Nanjing Microbonding Semiconductor Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-09
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a detection device of a DVI unit of a test system, which comprises a ox horn socket and at least one relay, wherein the ox horn socket is connected with a power supply; the DVI unit is connected between the ox horn socket and the central input end of the relay, a resistor is connected between the normal open end of the relay and the ox horn socket, and display devices are arranged at two ends of the resistor. According to the detection device, the DVI unit is connected in the detection device, different resistors are connected according to the use requirements of the DVI unit in operation, and the display devices at two ends of the resistor can display voltage and current data so as to detect the voltage and current of the DVI unit, and whether the test voltage and the test current provided by the DVI unit are accurate or not can be intuitively and effectively obtained.

Description

Detection device of DVI unit of test system

Technical Field

The utility model relates to the technical field of semiconductor testing, in particular to a device for detecting a DVI unit of a testing system.

Background

Since the DVI unit supplies voltage and current to the tested product in the semiconductor product test, the DVI unit of the tester is very important, and if the DVI unit has a problem, the product parameters tested by the DVI unit will have a problem, and the tested result will be inaccurate, thus affecting the functional test of the tested product.

How to obtain whether the DVI unit can correctly provide voltage and current to ensure the accuracy of the subsequent test is a problem we need to solve.

Disclosure of Invention

The utility model aims to provide a detection device for a DVI unit of a test system, which is used for solving the problem that whether the test voltage and the test current provided by the DVI unit are accurate or not cannot be effectively obtained in the prior art.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the detection device of the DVI unit of the test system comprises a ox horn socket and at least one relay, wherein the ox horn socket is connected with a power supply, the VCC end of the relay is connected with the power supply through the ox horn socket, and the control end of the relay is connected with the ox horn socket;

the DVI unit is connected between the ox horn socket and the central input end of the relay, a resistor is connected between the normal open end of the relay and the ox horn socket, and display devices are arranged at two ends of the resistor.

Further, the number of the relays is equal to or greater than two.

Further, the number of the relays is three, and the ratio of resistances connected to the three relays is 1:2:4.

Further, the relay further comprises a filter capacitor, wherein the filter capacitor is connected between the normal open end of the relay and the DVI unit.

Further, a zener diode is also included, the zener diode being connected between the normal open end of the relay and the header socket.

Further, the ox horn socket is a 64-channel ox horn socket.

Further, the resistor is an adjustable resistor.

Further, the display device is a multimeter.

Further, the power supply connected to the ox horn socket is a 5V power supply.

Further, the voltage range of the DVI unit is +/-4V- +/-40V, and the current range of the DVI unit is +/-1A- +/-10A.

According to the technical scheme, the embodiment of the utility model has at least the following effects: according to the detection device, the DVI unit is connected in the detection device, different resistors are connected according to the use requirements of the DVI unit in operation, and the display devices at two ends of the resistor can display voltage and current data so as to detect the voltage and current of the DVI unit, and whether the test voltage and the test current provided by the DVI unit are accurate or not can be intuitively and effectively obtained.

Drawings

FIG. 1 is a schematic diagram of an example of an embodiment of the present utility model;

fig. 2 is a schematic diagram of a different embodiment of the present utility model.

Wherein: 1. ox horn socket; 2. a DVI unit; 3. a relay; 4. a resistor; 5. a display device; 6. a zener diode; 7. a filter capacitor.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

It should be noted that, in the description of the present utility model, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and do not require that the present utility model must be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. The terms "front", "back", "left", "right", "upper", "lower" as used in the description of the present utility model refer to directions in the drawings, and the terms "inner", "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

Example 1

As shown in fig. 1, a detection device of a DVI unit of a test system includes a header socket 1 and at least one relay 3, the header socket 1 is connected with a power supply, a VCC end of the relay 3 is connected with the power supply through the header socket 1, and a control end of the relay 3 is connected with the header socket 1; the DVI unit 2 is connected between the ox horn socket 1 and the central input end of the relay 3, a resistor 4 is connected between the normal open end of the relay 3 and the ox horn socket 1, and display devices are arranged at two ends of the resistor 4.

According to the detection device, the DVI unit is connected in the detection device, different resistors are connected according to the use requirements of the DVI unit in operation, and the display devices at two ends of the resistor can display voltage and current data so as to detect the voltage and current of the DVI unit, and whether the test voltage and the test current provided by the DVI unit are accurate or not can be intuitively and effectively obtained.

Example 2

The difference between this embodiment and embodiment 1 is that the detection device according to this embodiment has a multi-path detection function. Specifically, a plurality of relays 3 are connected to the header socket 1. When two DVI units need to be detected, two relays 3 are connected to the ox horn socket 1, and the number of the corresponding resistors 4 corresponds to the number of the display devices and the number of the relays 3. Each resistor is connected between the normal open end of the relay 3 and the ox horn socket 1, and the display device 5 is provided at both ends of the resistor 4.

As shown in FIG. 2, two paths of detection are designed, R1 and R2 are loads, and when the conditions of 40V and 10A are required to be detected accurately. According to ohm's law r=u/I, the converted resistance is 4 ohms. When it is necessary to detect whether the 20V, 10A conditions are accurate. According to ohm's law r=u/I, the converted resistance is 2 ohms. In other embodiments, the multiple paths are performed simultaneously as needed, thereby improving the detection efficiency. If three paths of detection are adopted, the resistor is provided with three resistors, and R1/R2/R3 is connected with the resistors according to the ratio of 1:2:4 according to the running test program. This design is easy to calculate, e.g. a resistance of 1 ohm when the voltage is 4V indicates that the load is 4A, 2 ohms is 2A, and 4 ohms is 1A.

The working design process of the application can be as follows: connecting a DVI unit channel of a DL1000 tester to the 64-pin ox horn socket; connecting a 5V power supply to the 64-pin ox horn socket; connecting a relay control channel to the 64-pin ox horn socket; respectively connecting a 5V power supply on a 64-pin ox horn socket to the VCC end of the relay; the 64-pin ox horn socket is connected with a relay control and is respectively connected with the control ends of the relay; connecting a DVI channel on the 64-pin ox horn socket to the central input end of the relay; the normally open end of the relay is connected with a required resistor, and the required resistor value is calculated according to ohm's law R=U/I; two ends of the resistor R are connected with six-bit semi-universal meters; operating a DVI control program to enable the DVI channel to provide voltage and current; check if the multimeter reading is consistent with the values given in the program to confirm if our DVI channel power is normal.

Example 3

The difference between this embodiment and embodiment 1 is that the detection device according to this embodiment has a filter capacitor 7 and a zener diode 6. Specifically, the filter capacitor 7 is connected between the normal end of the relay 3 and the DVI unit 2. The filter capacitor is designed, so that the detection device can be prevented from unstable waveform.

The zener diode 6 is connected between the normal open end of the relay 3 and the ox horn socket 1, and is designed to prevent the electronic components in the detection device from being burnt out due to excessive voltage.

Further, in this embodiment, the resistor 4 is designed as an adjustable resistor, and by adjusting the resistance value of the resistor, the detection of DVI units with different requirements can be realized.

Further, the power supply connected to the ox horn socket 1 is a 5V power supply. The voltage range of the DVI unit is +/-4V- +/-40V, and the current range of the DVI unit is +/-1A- +/-10A.

It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.

Claims

1. The detection device of the DVI unit of the test system is characterized by comprising a ox horn socket (1) and at least one relay (3), wherein the ox horn socket (1) is connected with a power supply, the VCC end of the relay (3) is connected with the power supply through the ox horn socket (1), and the control end of the relay (3) is connected with the ox horn socket (1);

the DVI unit (2) is connected between the ox horn socket (1) and the central input end of the relay (3), a resistor (4) is connected between the normal open end of the relay (3) and the ox horn socket (1), and display devices are arranged at two ends of the resistor (4).

2. The test system DVI unit detection apparatus according to claim 1, wherein the number of relays (3) is two or more.

3. The device for detecting DVI cells of a test system according to claim 1, wherein the number of relays (3) is three, and the ratio of the resistances connected to the three relays (3) is 1:2:4.

4. The test system DVI cell detection apparatus according to claim 1, further comprising a filter capacitor (7), the filter capacitor (7) being connected between the normal-open end of the relay (3) and the DVI cell (2).

5. The test system DVI unit detection arrangement according to claim 1, further comprising a zener diode (6), the zener diode (6) being connected between the normal open end of the relay (3) and the header socket (1).

6. The test system DVI unit testing device of claim 1, wherein the ox horn socket (1) is a 64 channel ox horn socket.

7. A testing device for DVI cells of a test system according to claim 1, wherein the resistor (4) is an adjustable resistor.

8. A testing device for DVI units of a test system according to claim 1, characterized in that the display device (5) is a multimeter.

9. The device for detecting DVI units of a test system according to claim 1, wherein the power source connected to the header socket (1) is a 5V power source.

10. The device for testing a DVI cell of claim 1, wherein the voltage range of the DVI cell is ± 4V- ± 40V and the current range of the DVI cell is ± 1A- ± 10A.