TWM469482U - Detection system for detecting inspection area based on displacement variation of laser beam - Google Patents

Description

Detection system for detecting a region to be tested according to a change in displacement of laser light

The present invention relates to a detection system, and more particularly to a detection system that uses laser light to be applied to a detection platform and a component to be tested to detect the displacement of the laser light according to the change in displacement of the laser light.

According to the booming development of the electronics industry and the design concept of thin and light electronic products, integrated circuits (ICs) are widely used in various electronic products and become indispensable electronic components. In general, in order to ensure the production yield of the integrated circuit, the operator usually performs circuit detection operations on the integrated circuit to eliminate defective products.

In general, when an integrated circuit is operated by an execution circuit, the operator usually moves the integrated circuit between a plurality of detection platforms by using an adsorption device to perform various detection operations. However, in the aforementioned operation mode, the integrated body is integrated. The circuit is reciprocally assembled or removed from the detection platform. Therefore, the inside of the detection platform sometimes has residual debris of the damaged integrated circuit, and the interior of the detection platform is still used under long-term use. Dust or other foreign matter will accumulate. When the staff fails to detect or clean it, it is easy to cause the subsequent integrated circuit to be damaged due to the pressure on the foreign object, and the foreign object will also affect the integrated circuit and detection. The probe contact of the platform causes an increase in the damage rate of the integrated circuit and a lack of test quality.

In addition, in order to enable the test signal of the test machine to be reliably transmitted to the integrated circuit to test whether the integrated circuit can work normally, the adsorption device will press the integrated circuit. Go to the socket on the detection platform to make the terminal of the integrated circuit and the probe of the socket contact. However, during the process of plugging and unplugging the integrated circuit, when the adsorption device accidentally absorbs the integrated circuit, the The integrated circuit is left on the socket of the detection platform, so that when the subsequent integrated circuit is pressed to the socket, it will overlap the original integrated circuit and the circuit detection operation cannot be performed normally, and even the original integrated circuit may occur. The test result is mistaken for the subsequent original test result, and the quality of the integrated circuit is incorrectly distinguished. In addition, when the integrated circuit is repeatedly stacked and pressed, the socket or integrated circuit may be damaged and improved. The production and maintenance costs of the industry.

In order to solve the above problems, the operator usually configures the staff to perform visual inspection, but the foregoing inspection method is extremely easy to be negligent, and the integrated circuit that has not been removed is not completely found, or the foreign matter on the detection platform is not easily observed, therefore, In particular, a camera adds a camera above the inspection platform. The camera continuously captures the image on the detection platform and transmits the captured image to a computer device. The computer device compares the captured image with a standard image. Yes, wherein the standard picture is a picture on the detection platform without an integrated circuit, so that the computer device can determine whether there is an unremoved integrated circuit on the current detection platform to notify the work. The person removes the integrated circuit. However, although the foregoing method can largely avoid the problem that the integrated circuits are overlapped, since the computer device must compare a large number of captured pictures, and constantly compare each of the captured pictures and the standard pictures. The details can be used to determine whether there is an integrated circuit on the captured image. Therefore, the operation load of the computer device is too large, and the difference in working environment at different times (such as lighting, shadow of the staff) is also likely to be caused. The difference between the captured picture and the standard picture is different, which affects the difficulty and accuracy of the computer device in identification.

In summary, the existing detection system compares all the details on the two pictures to determine whether there is an integrated circuit on the detection platform, but the foregoing method will not only As a result, the operational burden of the computer device is greatly increased, and the result cannot be quickly determined. Therefore, how to design a better network detection system for the aforementioned deficiency is an important issue for the relevant industry.

In view of the existing detection system, the operation load of the computer device is too large, and the comparison speed is slow. Therefore, after long efforts and research, the creator finally developed and designed a kind of detection based on the displacement change of the laser light to be tested. The regional detection system, in order to provide a more rapid and accurate test result by the author.

One of the purposes of the present invention is to provide a detection system for detecting an area to be tested according to a change in displacement of laser light, to determine whether there is a foreign object on the surface of the detection platform by the displacement change of the light trace formed by the projection of the laser light. The detection system includes a detection platform, a laser unit, a camera unit and a computer device, wherein the detection platform is provided with a region to be tested along a longitudinal position of the top surface thereof, and the laser unit and the camera unit Positioned above the detection platform, respectively, and spaced apart from the detection platform, wherein the laser unit can project a laser light on the top surface of the detection platform, and the projection direction and the projection position of the laser light are along the edge The longitudinal displacement of the detecting platform, and the imaging angle of the imaging unit forms a predetermined imaging angle with the area to be tested, and can capture the displacement change of the laser light projected on the area to be tested, and according to To generate an image file, and the computer device is connected to the camera unit, and can receive the image file, and can be based on the image file. Displacement of the laser beam, while the top surface is judged whether the detection of the presence of other foreign internet? In this way, the detection system of the present invention only needs to judge the displacement change of the laser light, and can quickly and correctly determine whether there is any problem on the detection platform and the waiting component that may jeopardize the correctness of the subsequent detection result.

Another purpose of the creation is that the area to be tested can be used to place a plurality of elements to be tested. Awaiting the measuring component along the longitudinal direction of the detecting platform, sequentially arranged on the top surface of the detecting platform, and the imaging angle of the camera unit forms the predetermined angle with the top surface of the waiting component for the computer The device can change the displacement of the laser light on the top surface of the waiting component, and determine whether there is foreign matter on the top surface of the component to be tested. Is it judged whether the top surface of each of the components to be tested is normal? Or determine whether the distance between adjacent waiting components is correct? In this way, the manufacturer does not need to store a standard picture in the computer device as in the conventional detection system, and continuously takes a large number of photos for each of the components to be tested through the camera unit, and then compares each photo with the standard picture one by one. , effectively reduce the operational load on the computer device.

For the sake of your review, you can make a further understanding and understanding of the purpose, technical features and efficacy of this creation. The examples are shown in the following diagram:

[study]

no

[this creation]

1‧‧‧Detection system

11‧‧‧Testing platform

110‧‧‧ Area to be tested

111‧‧‧ socket

112‧‧‧Device under test

13‧‧‧Laser unit

15‧‧‧ camera unit

17‧‧‧Computer equipment

θ 1‧‧‧ camera angle

X‧‧‧Laser light

L‧‧‧Light traces

A1, a2, b1, b2‧‧‧ lines

The first picture is a front view of the detection system of the present creation; the second picture is a schematic view of the detection system of the present creation; the third picture is a schematic diagram of the detection side platform; the fourth picture is the device to be tested and the thunder thereon Schematic diagram of the light; and Figure 5 is a schematic diagram of the image file.

The present invention is a detection system for detecting a region to be tested according to a change in displacement of a laser light. Referring to FIGS. 1 to 3, the detection system 1 includes a detection platform 11, a laser unit 13, an imaging unit 15, and a The computer device 17 is electrically connected to the camera unit 15 to transmit information to each other, wherein the top surface of the detecting platform 11 is provided with a waiting area In the embodiment, the area to be tested 110 is provided with a plurality of sockets 111. The sockets 111 are arranged on the top surface of the detection platform 11 in the longitudinal direction of the detection platform 11 so as to be plural. The devices to be tested 112 (eg, integrated circuits) are respectively inserted into the sockets 111. However, in other embodiments of the present invention, when the device under test 112 is not an electronic component, the area to be tested 110 It is also possible to have no socket 111.

Referring to FIG. 1 to FIG. 3, the following embodiments are described by taking the device to be tested 112 on the area to be tested 110 as an example. The waiting components 112 are respectively inserted into the sockets 111. The laser unit 13 is disposed on the top surface of the detecting platform 11 in the longitudinal direction of the detecting platform 11 , and the laser unit 13 is disposed above the detecting platform 11 and spaced apart from the detecting platform 11 . So that the laser unit 13 does not touch the detection platform 11, and can project a laser light X to the top surface of the detection platform 11, and the laser unit 13 itself can be along the detection platform 11 Longitudinal displacement, or one end of the laser unit 13 is fixed, and the other end of the laser unit 13 is rotatable, so that when the laser unit 13 itself is displaced or rotated, the projection direction of the laser light X emitted therefrom is The projection position is displaced along the longitudinal direction of the detection platform 11, and the laser light X corresponds to the waiting component 112, so that a light trace can be formed on the top surface of the detection platform 11 and the surface of the waiting component 112. L (as shown in Figure 4).

Referring to FIG. 1 to FIG. 3 , the camera unit 15 is disposed at a lateral position above the detection platform 11 and spaced apart from the detection platform 11 such that the camera unit 15 does not touch the detection platform. 11. In this embodiment, the imaging angle of the imaging unit 15 forms a predetermined imaging angle θ1 with the top surface of the waiting component 112 on the to-be-tested area 110. In this embodiment, the foregoing imaging angle is Between zero degree and 90 degrees, and corresponding to the displacement path of the projection position of the laser light X, therefore, the image capturing unit 15 can capture the light formed by the laser light X The line trace L (as shown in FIG. 4), because the height difference between the detection platform 11 and the top surface of the waiting component 112, the image captured by the image capturing unit 15 includes the projection in the detection. The displacement of the laser light X on the top surface of the platform 11 and the waiting component 112, the camera unit 15 generates an image file (as shown in FIG. 5), and transmits the image file to The computer device 17 is on.

In addition, as shown in FIGS. 1 and 5, after receiving the image file, the computer device 17 checks the displacement change of the laser light X, and determines the detection platform 11 according to the displacement change of the laser light X. And the current condition of the device under test 112. For example, in the left position of FIG. 5, since there is a height difference between the line a1 and the line a2, it can be known that the detecting element 112 is placed on the detecting platform 11. Moreover, since the line a1 and the line a2 are flat, it can be known that the top surface of the detecting platform 11 and the element to be tested 112 is free from other foreign matter or damage; in the right position of FIG. Since the line b2 has a concave-convex shape, it can be known that if the top surface of the element to be tested 112 is foreign matter or damaged, the worker can quickly replace the element to be tested 112 or immediately remove the foreign object. To ensure the normal operation of the subsequent testing procedures. In addition, through the lengths of the line a1 and the line b1, it can be determined whether the distance between the two adjacent elements to be tested 112 is correct, so as to prevent the device under test 112 from being misplaced, which affects the subsequent detection process.

In particular, as shown in FIGS. 1 to 3, when the detecting element 112 is not placed on the detecting platform 11, the imaging angle θ 1 of the aforementioned imaging unit 15 can be compared with the area to be tested. The predetermined imaging angle θ1 is formed to enable the computer device 17 to determine whether there is a foreign object on the detection platform 11, or to detect whether there is a foreign object in the socket 111 in the area to be tested 110; The industry does not need to be installed in a computer like a traditional inspection system. A standard picture is stored in the 17th, and a large number of photos are continuously taken by the camera unit 15 through the camera unit 15, and then the photos are compared with the standard pictures one by one. Therefore, since the detection system 1 of the present invention only needs The displacement change of the laser light X is analyzed, so that the current state of the detection platform 11 and the device under test 112 can be quickly determined, so that the operational load of the computer device 17 can be greatly reduced, and the detection platform 11 and the waiting can be correctly determined. There are any problems on the test component 112 that may jeopardize the correctness of subsequent test results.

According to the above description, it is only a preferred embodiment of the present invention, but the scope of the claims claimed by the present invention is not limited thereto, and according to those skilled in the art, according to the technical content disclosed in the present invention, Equivalent changes that are easily thought of should be in the protection of this creation.

1‧‧‧Detection system

11‧‧‧Testing platform

112‧‧‧Device under test

13‧‧‧Laser unit

15‧‧‧ camera unit

17‧‧‧Computer equipment

X‧‧‧Laser light

Claims (7)

A detection system for detecting an area to be tested according to a change in displacement of a laser light, comprising: a detection platform having a test area along a longitudinal position of a top surface thereof; a laser unit disposed above the detection platform, and The detection platform is spaced apart by a distance, and a laser beam can be projected on the top surface of the detection platform. The projection direction and the projection position of the laser light are longitudinally displaced along the detection platform; a camera unit is disposed on the detection platform. Upper, spaced apart from the detection platform, and corresponding to the displacement path of the projection position of the laser light, to capture the displacement change of the laser light projected on the area to be tested, and accordingly generate an image file; The computer device is connected to the camera unit and can receive the image file. When the computer device receives the image file, it monitors the displacement change of the laser light to determine the displacement according to the displacement of the laser light. Check if there are other foreign objects on the top surface of the platform. The detection system of claim 1, wherein the camera unit is disposed at a lateral position above the detection platform, and forms a predetermined imaging angle with the area to be tested, the imaging angle being less than 90 degrees and greater than zero degrees. The detection system of claim 2, wherein the area to be tested is capable of placing a plurality of components to be tested, and the waiting components are sequentially arranged on a top surface of the detection platform along a longitudinal direction of the detection platform. The detection system of claim 3, wherein the projection direction and the projection position of the laser light correspond to a top surface of the waiting component. The detection system of claim 4, wherein the imaging angle of the camera unit corresponds to a top surface of the waiting component. The detection system of claim 5, wherein the computer device determines whether the top surface of each of the components to be tested is normal according to the displacement of the laser light, or determines whether the distance between the adjacent waiting components is correct. . The detection system of claim 6, wherein the area to be tested is provided with a plurality of sockets, the sockets are arranged on the top surface of the detection platform in the longitudinal direction of the detection platform, and can be used for waiting The measuring component is inserted thereon.