A method for preventing a probe card protective cover from being removed by mistake and a transportation device

Abstract

The present application relates to the technical field of wafer testing, and discloses a method for preventing a needle card protection cover from being missed and a transport device, the method comprising: covering a protection cover on a needle card; the protection cover is provided with a first number; the needle card with the protection cover is put into the transport device and is transported to a preset position; the transport device is provided with a second number; the needle card is taken out of the transport device, and the protection cover on the needle card is removed; wherein, after the needle card is taken out of the transport device, the transport device enters an alarm state and continuously or intermittently sends an alarm signal; the first number on the protection cover is scanned, and whether the first number and the second number provided on the transport device match is compared; if the first number and the second number match, the alarm state is exited; the present application mainly solves the technical problem that an operator is prone to missing the needle card protection cover before the needle card is tested by a machine in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of wafer testing, and in particular to a method for preventing a needle card protective cover from being missed and removed, and a transport device. Background Art

[0002] A probe card is a test interface that is mainly used to test bare chips. It consists of probes, electronic components, wires, and printed circuit boards. The probes on the probe card contact the chip, bringing out the chip signal, and then cooperate with peripheral test instruments and software control to achieve the purpose of automated measurement. Since the needle tip of the probe is easily oxidized when exposed to the air, it is usually covered with a protective cover. In the prior art, the protective cover needs to be removed before the probe card is placed on the machine for testing. However, since the protective cover is transparent, it is easy for operators to forget to remove the protective cover before operating the machine, resulting in damage to the machine and unnecessary financial losses. Therefore, inventing a method to prevent the situation where the protective cover of the probe card is not removed before being put on the machine has become an urgent problem to be solved. Summary of the Invention

[0003] The present invention discloses a method and a transport device for preventing the missed removal of a probe card protective cover, which is used to solve the technical problem in the prior art where operators easily miss removing the probe card protective cover before testing the probe card on a machine. To achieve this goal, the present invention adopts the following technical solutions:

[0004] A method for preventing a probe card protective cover from being missed during removal, comprising:

[0005] Putting a protective cover on the probe card; the protective cover is provided with a first number;

[0006] placing the probe card covered with the protective cover into a transport device and transporting it to a preset location; the transport device is provided with a second number;

[0007] Taking out the probe card from the transport device and removing the protective cover on the probe card; wherein, after the probe card is taken out of the transport device, the transport device enters an alarm state and continuously or intermittently issues an alarm signal;

[0008] Scanning a first number on the protective cover and comparing the first number with a second number on the transport device to see if they match;

[0009] If the first number matches the second number, exit the alarm state.

[0010] In one embodiment, placing the probe card covered with the protective cover into a transport device and transporting it to a predetermined location specifically includes:

[0011] placing the probe card in a protective box; the probe card is provided with a third number;

[0012] placing the protective box into the transport device;

[0013] The step of taking out the probe card from the transport device and removing the protective cover on the probe card comprises:

[0014] Taking out the protective box from the transport device;

[0015] Taking out the probe card from the protective box;

[0016] Before scanning the first number on the protective cover and comparing the first number with the second number set on the transport device to see if they match, the method further includes:

[0017] comparing a third serial number on the protective box to see if it matches the second serial number;

[0018] If so, scanning the first number on the protective cover and comparing the first number with the second number set on the transport device to see if they match;

[0019] If not, the user is prompted that the shipping product information does not match.

[0020] In one embodiment, placing the protective box into the transport device specifically includes:

[0021] placing the protective box into the induction area provided in the transport device;

[0022] The transport device displays a status of whether the probe card is loaded.

[0023] In one instance, this also includes:

[0024] Placing the probe card with the protective cover removed on a working surface of a production machine; the production machine is provided with a fourth number;

[0025] Scanning a first serial number on the protective cover and comparing the first serial number with a fourth serial number on the production machine to see if they match;

[0026] If the first number matches the fourth number, the machine is in an operable state.

[0027] In one embodiment, the first number is set on the back side of the protective cover.

[0028] A transport device for implementing the method for preventing the probe card protective cover from being missed when being removed as described in any one of claims 1 to 5, characterized in that it comprises: a box body, a first cavity for accommodating the probe card is provided inside the box body; a sensing area is provided at the bottom end of the first cavity, and a sensing module is installed on the sensing area; a display module for displaying the status of whether the transport device is loaded with the probe card, a scanning gun for entering a number, and an alarm module for alarming are provided on the top surface of the box body.

[0029] In one embodiment, one side surface of the first cavity is provided with an opening; the bottom surface of the first cavity is an inclined surface, and the inclined direction of the inclined surface is downward from the opening toward the inner side wall of the first cavity opposite to the opening.

[0030] In one embodiment, the sensing module includes a strip sensor attached to two opposite inner walls of the first cavity, and the strip sensor is disposed above the bottom surface of the first cavity.

[0031] In one embodiment, a second cavity for placing the probe card is recessed on the top of the box body, and cavity walls are provided around the second cavity for preventing the probe card from falling.

[0032] In one embodiment, the alarm module includes an indicator light and a voice reminder module.

[0033] Compared with the prior art, the method for preventing the probe card protective cover from being missed and the transport device provided by the present invention have at least the following beneficial effects:

[0034] The first number on the protective cover is bound to the second number of the transport device. When the bound transport device detects that the probe card has been taken out, an alarm state is triggered to remind the operator to remove the protective cover. The operator needs to compare the first number with the second number to cancel the alarm. By binding the transport device and the protective cover together through the above method, the operator is forced to open the protective cover before proceeding to the next step, avoiding the operator's subjective initiative leading to the omission of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A flowchart of a method for preventing a probe card protective cover from being missed during removal according to the present invention;

[0037] Figure 2 It is a schematic diagram of the three-dimensional structure of the transport device of the present invention;

[0038] Figure 3 This is a schematic diagram of the first cavity of the transport device of the present invention being loaded with a protective box;

[0039] Figure 4 This is a schematic diagram of the state in which the second cavity of the transport device of the present invention is loaded with a protective box.

[0040] Illustration:

[0041] 100. Transport device; 10. Box; 11. First cavity; 12. Second cavity; 20. Display screen; 30. Indicator light; 40. Voice reminder module; 50. Scanner; 60. Sensing area; 61. Sensor; 70. Rotating wheel; 80. Control module; 200. Protective box. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0043] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0044] It should be understood that the terms, "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0046] Example 1

[0047] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0048] See also Figure 1 This embodiment discloses a method for preventing a probe card protective cover from being missed during removal, comprising:

[0049] Putting a protective cover on the probe card; the protective cover is provided with a first number;

[0050] The probe card covered with the protective cover is placed in a transport device 100 and transported to a preset location; the transport device 100 is provided with a second number;

[0051] Taking out the probe card from the transport device 100 and removing the protective cover on the probe card; wherein, after the probe card is taken out of the transport device 100, the transport device 100 enters an alarm state and continuously or intermittently issues an alarm signal;

[0052] Scan the first number on the protective cover and compare the first number with the second number set on the transport device 100 to see if they match;

[0053] If the first number matches the second number, exit the alarm state.

[0054] Specifically, the protective cover is a transparent plastic cover, which is used to cover the probe card to protect the probe card from damage by external factors; the back of the protective cover (i.e., the side close to the probe card) is affixed with a first barcode, and the first barcode can be scanned by the scanner 50 to enter the first number into the control system; a second number is set on the transport device 100, the second number is entered into the control system, and then the second number is bound to the first number so that the transport device 100 is in a bound state, and then the probe card is placed in the transport device 100; when the transport device 100 is transported to the preset position, the transport device 100 is removed from the transport device 100. The probe card is taken out from the housing 100, and the transport device 100 in the binding state can sense that the probe card is taken out and trigger an alarm; the operator opens the protective cover, scans the first bar code with the scanning gun 50, and enters the obtained first number into the control system, and the control system compares the first number with the second number to see if they are consistent. If they are consistent, the alarm state of the transport device 100 is canceled; in this embodiment, since the protective cover is made of transparent material, the first bar code is affixed to the back of the protective cover, which can avoid the situation where the operator can scan the code to cancel the alarm state of the transport device 100 without removing the protective cover.

[0055] Optionally, placing the probe card covered with the protective cover into the transport device 100 and transporting it to a preset location specifically includes:

[0056] The probe card is placed in a protective box 200; a third number is set on the probe card;

[0057] Place the protective box 200 into the transport device 100;

[0058] The step of taking out the probe card from the transport device 100 and removing the protective cover on the probe card includes:

[0059] Take out the protective box 200 from the transport device 100;

[0060] Take out the probe card from the protective box 200;

[0061] Before scanning the first number on the protective cover and comparing the first number with the second number set on the transport device 100 to see if they match, the method further includes:

[0062] Comparing whether the third number set on the protective box 200 matches the second number;

[0063] If so, scan the first number on the protective cover and compare the first number with the second number set on the transport device 100 to see if they match;

[0064] If not, the user is prompted that the shipping product information does not match.

[0065] Specifically, see Figure 3 The operator takes out a usable probe card from the spare parts room. The probe card is provided with a second barcode. Scanning the second barcode with a scanner 50 can enter the third number into the control system. Furthermore, since the probe card is a precision component, to further protect the probe card from damage by external factors, the probe card is placed in a protective box 200 for transportation. At the same time, to facilitate binding the third number with the second number set on the transportation device 100, the outer wall of the protective box 200 is provided with the same second barcode. Scanning the second barcode on the outer wall of the protective box 200 with a scanner 50 can obtain the third number, and the system then binds the second and third numbers. By binding the third number to the second number, the situation of loading the wrong probe card can be avoided.

[0066] Optionally, placing the protective box 200 into the transport device 100 specifically includes:

[0067] Place the protective box 200 into the sensing area 60 disposed in the transport device 100;

[0068] The transport device 100 displays a status of whether the probe card is loaded.

[0069] Specifically, see Figure 4The transport device 100 includes a sensing area 60 for sensing whether the protective box 200 is placed in place; the transport device 100 also includes a display module for displaying the loading status of the probe card. When the protective box 200 is placed on the sensing area 60, the display module displays that the probe card is in place, which makes it easier for operators to understand the current loading status of the transport device 100.

[0070] Optionally, the method for preventing the probe card protective cover from being missed from being removed further includes:

[0071] Placing the probe card with the protective cover removed on a working surface of a production machine; the production machine is provided with a fourth number;

[0072] Scanning a first serial number on the protective cover and comparing the first serial number with a fourth serial number on the production machine to see if they match;

[0073] If the first number matches the fourth number, the machine is in an operable state.

[0074] Specifically, the production machine is electrically connected to the control system, and the fourth number of the production machine is pre-entered into the control system. When the operator takes the probe card from the spare parts room, the first number of the protective cover needs to be entered into the system and bound to the fourth number. When the operator places the probe card on the working surface of the production machine, the scanner 50 scans the first barcode attached to the protective cover. The control system then enters the scanned first number and compares it with the fourth number of the bound production machine. If they match, the production machine is untied and put into operation. If they do not match, the production machine cannot operate. The above method can further avoid the situation where the protective cover is accidentally removed.

[0075] Example 2

[0076] See also Figures 2 to 4 This embodiment discloses a transport device 100 for implementing the method for preventing the probe card protective cover from being missed in the first embodiment, including a box 10, a sensing module, a display module, an alarm module, a scanning gun 50 and a control module 80.

[0077] The box body 10 is a rectangular box body 10 with a hollow structure made of sheet metal. A first cavity 11 is provided inside the box body 10 for accommodating the probe card and / or protective box 200 in the first embodiment. Preferably, an opening is provided on one of the sides of the first cavity 11. In order to prevent the probe card and / or protective box 200 from falling during transportation, the bottom surface of the first cavity 11 is designed as an inclined surface, with the direction of inclination pointing downward from the opening toward the inner side wall of the first cavity 11 opposite the opening. A second cavity 12 is recessed at the top of the box body 10 for placing the probe card and / or protective box 200. The second cavity 12 is surrounded by cavity walls for preventing the probe card and / or protective box 200 from falling. Specifically, the entire length of the transport device 100 is 1000 mm, the width is 900 mm, the height is 720 mm, and the height of the cavity wall is 70 mm.

[0078] The control module 80 is installed in the box 10 , and is electrically connected to the sensing module, the display module and the scanner 50 , and is also electrically connected to the control system in the first embodiment.

[0079] The bottom of the first cavity 11 is provided with a sensing area 60 for detecting whether the probe card and / or protective box 200 is properly placed. The sensing module is fixedly mounted on the sensing area 60. Specifically, the sensing module includes strip sensors 61 attached to the inner walls of the first cavity 11 on opposite sides. The strip sensors 61 are arranged above the bottom surface of the first cavity 11. When the probe card and / or protective box 200 is placed on the bottom surface of the first cavity 11, the light between the strip sensors 61 is blocked, allowing the sensing module to detect whether the probe card and / or protective box 200 is properly placed. This structural design allows probe cards and / or protective boxes 200 of different specifications to be detected when placed in the sensing area 60.

[0080] The display module is fixedly mounted on the top surface of the box 10. Specifically, the display module is used to display whether the transport device 100 is loaded with a probe card. The display module includes a display screen 20, wherein the display screen 20 is provided with a first display area for displaying the second number of the transport device 100, a second display area for displaying the third number of the probe card, and a third display area for displaying the status of the transport device 100. When the transport device 100 is initially in an empty state, after the control system enters the third number, the first display area displays the entered third number of the transport device 100. Accordingly, the third display area displays "Empty state, please get on board." When the operator uses the scanner 50 to scan the second barcode attached to the outer wall of the protective box 200, the second display area displays the entered third number of the probe card. Then, the operator places the protective box 200 in the sensing area 60. The third display area accordingly changes the display content to "Please compare the needle tip protection cover" to remind the operator to remove the protection cover after removing the probe card. It should be explained that the text content displayed in the third display area in this embodiment is to enable the operator to intuitively understand the status of the probe card. In other embodiments, the text content of the third display area can be adjusted according to actual conditions, and this application does not unify it.

[0081] The scanner 50 is connected to the top surface of the box 10 for the operator to scan the barcode and enter the scanned number into the control system.

[0082] The alarm module is arranged on the top surface of the box body 10 and includes an indicator light 30 and a voice reminder module 40. Specifically, when the alarm module is in the alarm state, the indicator light 30 will flash, and the voice reminder module 40 will sound a voice to remind the operator to remove the protective cover before boarding the machine.

[0083] In this embodiment, the transport device 100 further includes four rotating wheels 70 disposed at the bottom, and a driving mechanism for driving the rotating wheels 70 .

[0084] The above is merely a preferred embodiment of the present invention and specifically describes the technical principles of the present invention. These descriptions are intended only to explain the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be imagined by those skilled in the art without inventive effort, shall be included within the scope of protection of the present invention.

Claims

1. A method for preventing a probe card protective cover from being missed, characterized in that: include: Putting a protective cover on the probe card; a first number is set on a side of the protective cover close to the probe card; placing the probe card covered with the protective cover into a transport device and transporting it to a preset location; the transport device is provided with a second number; Taking out the probe card from the transport device and removing the protective cover on the probe card; wherein, after the probe card is taken out of the transport device, the transport device enters an alarm state and continuously or intermittently issues an alarm signal; Scanning a first number on the protective cover and comparing the first number with a second number on the transport device to see if they match; If the first number matches the second number, exit the alarm state.

2. The method for preventing the probe card protective cover from being missed when being removed according to claim 1, wherein: Placing the probe card covered with the protective cover into a transport device and transporting it to a preset location specifically includes: placing the probe card in a protective box; the probe card is provided with a third number; placing the protective box into the transport device; The step of taking out the probe card from the transport device and removing the protective cover on the probe card comprises: Taking out the protective box from the transport device; Taking out the probe card from the protective box; Before scanning the first number on the protective cover and comparing the first number with the second number set on the transport device to see if they match, the method further includes: comparing whether a third number set on the probe card matches the second number; If so, scanning the first number on the protective cover and comparing the first number with the second number set on the transport device to see if they match; If not, the user is prompted that the shipping product information does not match.

3. The method for preventing the probe card protective cover from being missed when being removed according to claim 2, wherein: Placing the protective box into the transport device specifically includes: placing the protective box into the induction area provided in the transport device; The transport device displays a status of whether the probe card is loaded.

4. The method for preventing the probe card protective cover from being missed when being removed according to claim 1, wherein: Also includes: Placing the probe card with the protective cover removed on a working surface of a production machine; the production machine is provided with a fourth number; Scanning a first serial number on the protective cover and comparing the first serial number with a fourth serial number on the production machine to see if they match; If the first number matches the fourth number, the machine is in an operable state.

5. The method for preventing the probe card protective cover from being missed when being removed according to claim 1, wherein: The first number is set on the back side of the protection cover.

6. A transport device for implementing the method for preventing the probe card protective cover from being missed when being removed according to any one of claims 1 to 5, characterized in that: include: A box body is provided with a first cavity for accommodating the probe card; a sensing area is provided at the bottom end of the first cavity, and a sensing module is installed on the sensing area; a display module for displaying whether the transport device is loaded with the probe card, a scanning gun for entering the number, and an alarm module for alarm are provided on the top surface of the box body.

7. The transport device according to claim 6, characterized in that One of the side surfaces of the first cavity is provided with an opening; the bottom surface of the first cavity is an inclined surface, and the inclined direction of the inclined surface is downward from the opening toward the inner side wall of the first cavity opposite to the opening.

8. The transport device according to claim 7, characterized in that The sensing module includes strip sensors attached to two opposite inner walls of the first cavity, and the strip sensors are arranged above the bottom surface of the first cavity.

9. The transport device according to claim 6, characterized in that A second cavity for placing the probe card is recessed on the top of the box body, and cavity walls for preventing the probe card from falling are arranged around the second cavity.

10. The transport device according to claim 6, characterized in that The alarm module includes an indicator light and a voice reminder module.

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