Universal loop detection device for burn-in board

Abstract

The utility model provides a universal loop detection device for burn-in boards. The device comprises a plurality of detection branches, one detection branch corresponds to one station for detecting the burn-in board, and one end of the station is electrically connected with the positive electrode end of the burn-in board; each detection branch comprises a first end part, a second end part and a lamp group connected in series between the first end part and the second end part; when the burn-in board universal loop detection device works, the first end part of the detection branch is electrically connected with the positive electrode end of the burn-in board, and the second end part of the detection branch is electrically connected with the corresponding jack of one station. Therefore, the lamp group of one detection branch and the corresponding station form a detection loop, the on-off condition of the corresponding station can be simply, quickly and accurately judged by observing the on-off condition of the lamp group, the multiple detection branches of the device can detect the multiple stations of the burn-in board at the same time, and the detection efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the reliability detection technical field of semiconductor device, especially relates to a general circuit detection device of aging board. BACKGROUND

[0002] When carrying out the reliability aging test power-on examination item of the device, the device needs to be first put into the socket of the aging board, and then the aging board and the device are put into the equipment to be powered on for aging. Among them, before the examination, the on-off of the socket of the aging board needs to be measured, and the measurement method of a single socket is to set the multimeter to the ohm scale, put one end of the probe on the V+ terminal post of the aging board, and the other end on the corresponding pin of the socket to form a loop, and then determine whether the socket is conductive according to the resistance value or on-off condition measured by the multimeter.

[0003] Figure 1 It is a detection circuit diagram for detecting a single socket of an HTRB (High Temperature Reverse Bias) aging board containing a fuse and a resistor using a multimeter. Figure 2 It is a detection circuit diagram for detecting a single socket of an HTRB aging board containing a fuse using a multimeter. Figure 3 It is a detection circuit diagram for detecting a single socket of an HTGB (High Temperature Gate Bias) aging board containing a fuse and a resistor using a multimeter. Figure 4 It is a detection circuit diagram for measuring a single socket of an HTRB aging board containing a fuse using a multimeter. Figure 1 As shown, when the HTRB aging board contains a resistor and a fuse, the resistance value from VCC to D needs to be measured to determine the on-off of a single socket. Figure 2 As shown, when the HTRB aging board contains a fuse, the on-off condition from VCC to D needs to be measured to determine the on-off of a single socket. Figure 3 As shown, when the HTGB aging board contains a resistor and a fuse, the resistance value from VCC to G needs to be measured to determine the on-off of a single socket. Figure 4 As shown, when the HTGB aging board contains a fuse, the on-off condition from VCC to G needs to be measured to determine the on-off of a single socket.

[0004] After investigating the industry, most of them currently use the manual measurement method of the multimeter to detect the aging board. However, due to the large amount of examination, the large number of aging boards, and the large number of sockets of each aging board (conventional aging board has 80 sockets), and each socket of each aging board needs to be measured, which consumes a lot of manpower. In addition, during the manual detection process, the delay of the multimeter display and / or the too fast manual operation will cause the problem of missed detection or inaccurate detection of some sockets.

[0005] In addition, there is also a method of inserting the aging board into the aging equipment and then starting the aging to determine whether the aging board is normal through the leakage current, but in the HTGB test, due to the characteristics of the device, the gate oxide layer has small leakage (usually pA level), and the aging board has multi-station simultaneous detection, the current detection accuracy is affected by many factors, and the instrument loop detection is difficult, and each station is measured, which is complicated and labor-consuming.

[0006] Therefore, how to simply, quickly and accurately detect the on-off state of the loop of the plurality of stations of the aging board needs to be solved. Practical new type content

[0007] The utility model provides a kind of aging board general loop detection device, and the on-off state of the loop of the plurality of stations of the aging board can be simply, quickly and accurately detected, to avoid the failure of device evaluation caused by aging board problem.

[0008] In order to achieve the above purpose, the aging board general loop detection device provided by the utility model comprises a plurality of detection branches, one detection branch corresponds to the detection of one station of the aging board, one end of the station is electrically connected to the positive terminal of the aging board, each detection branch comprises a first end, a second end and a lamp group connected in series between the first end and the second end, and when the aging board general loop detection device works, the first end is electrically connected to the positive terminal of the aging board, and the second end is electrically connected to the corresponding jack of one station.

[0009] Optionally, the aging board general loop detection device comprises a base, all the lamp groups are fixed on the base and exposed on the surface of the base, and the second end of at least part of the detection branches is movably arranged on the base.

[0010] Optionally, a plurality of second ends are arranged in one or more rows on the base.

[0011] Optionally, the aging board general loop detection device comprises an adjusting component, and the adjusting component is arranged on two second ends to adjust the distance between the two second ends.

[0012] Optionally, the aging board general loop detection device comprises at least one telescopic component, one telescopic component is connected to a plurality of second ends, and one adjusting component is arranged on two second ends, and one telescopic component and one adjusting component cooperate to adjust the distance between the plurality of second ends.

[0013] Optionally, one telescopic component is connected to a row of second ends.

[0014] Optionally, the adjusting component comprises a screw rod, and the telescopic component comprises an equidistant variable distance mechanism.

[0015] Optionally, the second end portion comprises a contact spring.

[0016] Optionally, the aging board comprises a plurality of the workstations, and the plurality of the workstations are arranged in rows and columns.

[0017] Optionally, the lamp group and the corresponding workstation are connected in series in a detection loop.

[0018] The aging board universal loop detection device provided by the utility model comprises a plurality of detection branches, one detection branch corresponds to detection of one workstation of an aging board, the workstation is electrically connected with a positive electrode end of the aging board, each detection branch comprises a first end portion, a second end portion and a lamp group connected in series between the first end portion and the second end portion, when the aging board universal loop detection device works, the first end portion is electrically connected with the positive electrode end of the aging board, the second end portion is electrically connected with a corresponding jack of one workstation of the aging board, so that the lamp group of one detection branch and the corresponding workstation constitute a detection loop, when the workstation is a broken circuit, the corresponding lamp group is extinguished, when the workstation is a through circuit, the corresponding lamp group is lit, so that the on-off state of the corresponding workstation can be judged simply, quickly and accurately through the light-out state of the lamp group, and the plurality of detection branches of the device can detect the plurality of workstations of the aging board at the same time, and the detection efficiency is high, therefore, the aging board universal loop detection device of the utility model can detect the on-off state of the loop of the plurality of workstations of the aging board simply, quickly and accurately, and the failure of the device caused by the problem of the aging board is avoided.

[0019] Further, the second end portion of at least part of the detection branches is movably arranged on the base, so that the plurality of second end portions can be aligned with and electrically connected with the plurality of workstations of the aging board by adjusting the spacing between the plurality of second end portions, so that the aging board universal loop detection device can measure a plurality of types of aging boards with different workstation spacings, and the application range of the aging board universal loop detection device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a detection loop diagram for detecting the detection loop of a single workstation of an HTRB aging board containing a fuse and a resistor by using a universal meter.

[0021] Figure 2 It is a detection loop diagram for detecting the detection loop of a single workstation of an HTRB aging board containing a fuse by using a universal meter.

[0022] Figure 3 It is a detection loop diagram for detecting the detection loop of a single workstation of an HTGB aging board containing a fuse and a resistor by using a universal meter.

[0023] Figure 4 It is a detection loop diagram for detecting the detection loop of a single workstation of an HTRB aging board containing a fuse by using a universal meter.

[0024] Figure 5 The utility model provides a three -dimensional schematic diagram of general circuit detection device of aging board for an embodiment of the utility model.

[0025] Figure 6 The utility model provides a cooperation schematic drawing of general circuit detection device of aging board and aging board for an embodiment of the utility model.

[0026] Figure 7 And Figure 8 The utility model provides a three -dimensional schematic diagram of internal structure of general circuit detection device of aging board for an embodiment of the utility model.

[0027] Figures 9 to 12 The utility model provides a detection circuit diagram of single station of general circuit detection device of aging board of the utility model for an embodiment to detect different types of aging board.

[0028] The drawing label explanation: 10 - general circuit detection device of aging board;101 - lamp group;102 - base;103 - support pole;104 - second end portion;105 - sliding block;106 - contact spring piece;107 - adjusting part;108 - telescopic part;20 - aging board;201 - PCB board;202 - positive pole end;203 - station;203a - socket. DETAILED DESCRIPTION

[0029] The utility model provides general circuit detection device of aging board further in detail below combining with the drawings and specific embodiment. According to the following description, the advantages and characteristics of the utility model will be more clear. It is stated that, the drawings all adopt very simplified form and all use non-precise proportion, just to facilitate, clear and assist the purpose of the description of the utility model embodiment.

[0030] It is stated that, the term "first", "second" used in the application is only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly include one or more features. In the description of the application, the meaning of "multiple" is two or two or more, at least one refers to one, two or two or more, unless otherwise specifically limited.

[0031] Figure 5 The utility model provides a three -dimensional schematic diagram of general circuit detection device of aging board for an embodiment of the utility model. Figure 6 The utility model provides a cooperation schematic drawing of general circuit detection device of aging board and aging board for an embodiment of the utility model. Figures 10 to 12 The utility model provides a detection circuit diagram of single station of general circuit detection device of aging board of the utility model for an embodiment to detect different types of aging board.

[0032] Referring to Figure 5 , Figure 6 , Figures 10 to 12 As shown in FIG. 1, the universal circuit detection device 10 for the aging board provided by the embodiment includes a plurality of detection branches, one detection branch corresponds to one work station 203 of the aging board 20, one end of the work station 203 is electrically connected with the positive terminal 202 of the aging board 20; each detection branch includes a first end, a second end 104 and a lamp group 101 connected in series between the first end and the second end 104; when the universal circuit detection device for the aging board works, the first end is electrically connected with the positive terminal 202 of the aging board, and the second end 104 is electrically connected with the corresponding jack of the work station 203 of the aging board 20.

[0033] For example, the aging board 20 detected by the universal circuit detection device for the aging board can be HTRB, HTGB, HAST (Highly Accelerated Temperature and Humidity Stress Testing), H3TRB (High Humidity High Temperature Reverse Bias) or LTOL (Low Temperature Operating Life) and the like.

[0034] Referring to Figure 6 As shown in FIG. 2, the aging board 20 can include a PCB board 201 and a plurality of work stations 203, the plurality of work stations 203 can be arranged in an array on the PCB board 201, the PCB board 201 is provided with a positive terminal 202, and the plurality of work stations 203 of the aging board 20 can be electrically connected with the positive terminal 202 through the circuit in the PCB board 201. For example, the positive terminal 202 can be a metal pad on the PCB board 201, such as a gold finger. For example, the aging board 20 can have 80 work stations or 40 work stations and the like.

[0035] Referring to Figures 9 to 12 As shown in FIG. 3, the single work station 203 of the aging board includes a socket 203a, the socket 203a has three jacks of gate terminal G, source terminal S and drain terminal D. In order to protect the equipment power supply and the aging board, the single work station 203 can further include a resistance wire and / or a resistance connected in series with the socket 203a.

[0036] When the universal circuit detection device for the aging board works, the first end of the detection branch is electrically connected with the positive terminal 202 of the aging board, and the second end 104 is electrically connected with the corresponding jack of the socket 203a of the work station.

[0037] Exemplarily, the aging board universal circuit detection device 10 can include a front-end detection line (not shown in the figure), which can be the first end of multiple detection branches, i.e., the multiple detection branches can share the front-end detection line as the first end. When the aging board universal circuit detection device is working (i.e., detection is being performed), the front-end detection line can be electrically connected to the positive terminal 202 of the aging board through a clamp. Exemplarily, the multiple detection branches of the aging board universal circuit detection device 10 can be in a parallel relationship.

[0038] Referring to Figures 9 to 12 As shown, when the aging board universal circuit detection device is working, one detection branch corresponds to the detection of one station 203 of the aging board, and the lamp group 101 of the detection branch and the corresponding station 203 are connected in series to form a detection circuit of one station. In the detection circuit of one station, the lamp group 101 of the detection branch and the fuse, resistor, and socket 203a of the corresponding station are connected in series, so that when the station is open, the corresponding lamp group 101 is extinguished, and when the station is closed, the corresponding lamp group 101 is lit, and thus the on-off state of the corresponding station can be easily, quickly, and accurately determined by the on-off state of the lamp group 101.

[0039] In an embodiment, referring to Figure 9 As shown, a single station 203 of an HTRB type aging board includes a fuse, a resistor, and a socket 203a connected in series, one end of the fuse is electrically connected to the positive terminal 202 of the aging board and the other end is connected to one end of the resistor, the other end of the resistor is connected to the drain end D of the socket 203a; when the aging board universal circuit detection device is used to detect the on-off state of the station of the aging board, for one detection branch, the first end thereof is electrically connected to the positive terminal 202 of the aging board, and the second end 104 thereof is electrically connected to the drain end D of the socket 203a.

[0040] In an embodiment, referring to Figure 10 As shown, a single station 203 of an HTRB type aging board includes a fuse and a socket 203a connected in series, one end of the fuse is electrically connected to the positive terminal 202 of the aging board and the other end is connected to the drain end D of the socket 203a; when the aging board universal circuit detection device is used to detect the on-off state of the station of the aging board, for one detection branch, the first end thereof is electrically connected to the positive terminal 202 of the aging board, and the second end 104 thereof is electrically connected to the drain end D of the socket 203a.

[0041] In an embodiment, referring to Figure 11As shown in the figure, a single station 203 of an HTGB type aging board includes a fuse, a resistor and a socket 203a connected in series, one end of the fuse is electrically connected with the positive terminal 202 of the aging board and the other end is connected with one end of the resistor, the other end of the resistor is connected with the gate terminal G of the socket 203a; when detecting the on-off of the station of the aging board using the aging board universal circuit detection device, for one detection branch, the first end is electrically connected with the positive terminal 202 of the aging board and the second end 104 is electrically connected with the gate terminal G of the socket 203a.

[0042] In an embodiment, referring to Figure 12 As shown in the figure, a single station of an HTGB type aging board includes a fuse and a socket 203a connected in series, one end of the fuse is electrically connected with the positive terminal 202 of the aging board and the other end is connected with the gate terminal G of the socket 203a; when detecting the on-off of the station of the aging board using the aging board universal circuit detection device, for one detection branch, the first end is electrically connected with the positive terminal 202 of the aging board and the second end 104 is electrically connected with the gate terminal G of the socket 203a.

[0043] In the embodiment, the aging board universal circuit detection device can include a power adapter, which supplies power to a plurality of detection branches. In the embodiment, the first end of the detection branch is a positive voltage terminal and the second end 104 is a ground terminal, but it is not limited thereto.

[0044] Figure 7 And Figure 8 The figure is a schematic diagram of different perspectives of the internal structure of the aging board universal circuit detection device provided in an embodiment of the utility model. Illustratively, referring to Figure 7 And Figure 8 As shown in the figure, the aging board universal circuit detection device can include a base 102, all the lamp groups 101 are fixed on the base 102 and are exposed on the surface of the base 102 for observation, and the second ends 104 of at least some of the plurality of detection branches are movably arranged on the base 102. In this way, the plurality of second ends 104 can be simultaneously aligned with and electrically connected with a plurality of stations 203 of the aging board 20 by adjusting the spacing between the plurality of second ends 104, so that the aging board universal circuit detection device can measure a plurality of types of aging boards 20 with different station spacings, thereby improving the application range of the aging board universal circuit detection device.

[0045] Illustratively, the lamp group 101 includes but is not limited to an LED lamp group.

[0046] Illustratively, referring to Figure 7 And Figure 8As shown, the aging board universal loop detection device can include adjusting components 107, which can be arranged on the two second end portions 104 to adjust the distance between the two second end portions 104. Exemplarily, the adjusting components 107 include, but are not limited to, a screw rod connecting the two second end portions 104, and rotating the screw rod can adjust the distance between the two second end portions 104, which can be adjacent two second end portions, but are not limited thereto.

[0047] In this embodiment, reference is made to Figure 7 and Figure 8 As shown, the multiple second end portions 104 of the aging board universal loop detection device are arranged in a row on the base 102, so that after adjusting the distance between the adjacent two second end portions 104 based on the distance between the adjacent two stations 203 of the aging board, the multiple second end portions 104 can be inserted into the corresponding insertion holes of the multiple stations 203 at the same time and detect the on-off state of the multiple stations at the same time. This operation is convenient and efficient, and in addition, the use of the aging board universal loop detection device is not limited by the distance between the adjacent two rows of stations 203 of the aging board 20, and has high flexibility. Among them, one second end portion 104 at one end of a row of second end portions 104 can be fixed, and the remaining second end portions 104 can be moved; or all second end portions 104 in a row can be moved.

[0048] In other embodiments, the multiple second end portions 104 of the aging board universal loop detection device can be arranged in multiple rows. The distance between the second end portions 104 in the same row can be the same.

[0049] Exemplarily, the number of second end portions in a row of second end portions 104 can be set according to actual needs, for example, can be less than or equal to the number of stations in a row of stations 202 of the aging board 20.

[0050] In an embodiment, the second end portion 104 can include a sliding block 105 and a contact spring 106 fixed on the sliding block 105. A support rod 103 is arranged on the base, the sliding block 105 is provided with a through hole, the support rod 103 can pass through the through holes of multiple sliding blocks 105 to support the multiple sliding blocks 105, and the multiple sliding blocks 105 can move on the support rod 103. The contact spring 106 can be inserted into the corresponding insertion hole of the corresponding station 203 during detection. The contact spring 106 can be electrically connected to the lamp group 101 of the same detection branch through a wire.

[0051] Exemplarily, one support rod 103 can pass through the through holes of the sliding blocks 105 of a row of second end portions 104 to support a row of second end portions 104; a row of second end portions 104 can also be supported by two or more support rods 103, and correspondingly, two or more through holes are arranged on one sliding block 105.

[0052] Reference Figure 7 and Figure 8 As shown in the figure, the aging board universal circuit detection device can include at least one telescopic component 108, one of the telescopic components 108 is connected with a plurality of second end portions 104, wherein two second end portions 104 are provided with an adjusting component 107, one telescopic component 108 and one adjusting component 107 cooperate to adjust the spacing between a plurality of second end portions 104. In more detail, one telescopic component 108 is connected with a row of second end portions 104, and the adjacent two second end portions 104 in the row of second end portions 104 are further connected by an adjusting component 107, and the adjusting component 107 can adjust the spacing between the adjacent two second end portions 104 and drive the telescopic component 108 to expand or contract, and further drive the other second end portions 104 in the same row to move, thereby realizing the spacing adjustment of the row of second end portions 104. Among them, the telescopic component 108 can adjust the plurality of second end portions 104 connected thereto at equal intervals, that is, as the telescopic component 108 expands or contracts, the plurality of second end portions 104 can move and the spacing between the adjacent second end portions 104 remains consistent. The telescopic component 108 includes but is not limited to an equal distance variable distance mechanism.

[0053] In this embodiment, the aging board universal circuit detection device is a handheld device, which is light and easy to operate, and has high popularization. When using the aging board universal circuit detection device 10 to detect the on-off state of the aging board 20, the front end detection line of the device is pulled out, and the chuck of the front end detection line is clamped on the positive electrode end 202 of the aging board, and then a plurality of second end portions 104 are manually inserted into the corresponding insertion hole of the corresponding socket 203a at the same time, the switch is pressed, and the on-off state of the plurality of lamp groups 101 of the device is observed to complete the detection. Among them, when the lamp group 101 is extinguished, it indicates that the corresponding work position 203 of the lamp group 101 is open circuit; when the lamp group 101 is on, it indicates that the corresponding work position 203 of the lamp group 101 is a through circuit.

[0054] The aging board universal circuit detection device 10 provided by the utility model can simply, quickly and accurately detect the on-off state of the aging board, and avoids the examination failure of the device caused by the aging board problem.

[0055] The above description is only a description of the preferred embodiments of the utility model, and does not limit the scope of the utility model in any way. Any person skilled in the art can make possible changes and modifications to the utility model technical solution by using the disclosed methods and technical contents without departing from the spirit and scope of the utility model. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model, which does not depart from the content of the utility model technical solution, belongs to the protection scope of the utility model technical solution.

Claims

1. An aging board universal loop detection device, characterized by, The device comprises a plurality of detection branches, one of which corresponds to the detection of one station of the aging board, one end of the station being electrically connected to the positive terminal of the aging board; each of the detection branches comprises a first end, a second end and a lamp group connected in series between the first end and the second end; when the device is in operation, the first end is electrically connected to the positive terminal of the aging board, and the second end is electrically connected to the corresponding jack of one station.

2. The board aging universal loop test apparatus of claim 1, wherein, The device comprises a base, all the lamp groups are fixed on the base and exposed on the surface of the base, and the second ends of at least part of the detection branches are movably arranged on the base.

3. The board aging universal loop test apparatus of claim 2, wherein, The second ends are arranged in one or more rows on the base.

4. The board aging universal loop test apparatus of claim 2, wherein, The device comprises an adjusting component arranged on two second ends to adjust the distance between the two second ends.

5. The board aging universal loop test apparatus of claim 4, wherein, The device comprises at least one telescopic component, one of which is connected to a plurality of second ends, wherein one of the two second ends is provided with an adjusting component, one telescopic component and one adjusting component cooperate to adjust the distance between the plurality of second ends.

6. The board aging universal loop test apparatus of claim 5, wherein, One telescopic component is connected to one row of second ends.

7. The board aging universal loop test apparatus of claim 5, wherein, The adjusting component comprises a screw rod; the telescopic component comprises an equidistant variable pitch mechanism.

8. The board aging universal loop test apparatus of claim 1, wherein, The second end comprises a contact spring.

9. The board aging universal loop test apparatus of claim 1, wherein, The aging board comprises a plurality of stations arranged in rows and columns.

10. The board aging universal loop test apparatus of claim 1, wherein, The lamp group and the corresponding station are connected in series in the detection circuit.

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