CN217879457U - Electrical property detection tool - Google Patents
Electrical property detection tool Download PDFInfo
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- CN217879457U CN217879457U CN202221608736.3U CN202221608736U CN217879457U CN 217879457 U CN217879457 U CN 217879457U CN 202221608736 U CN202221608736 U CN 202221608736U CN 217879457 U CN217879457 U CN 217879457U
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- arm
- coupled
- cable
- transmission line
- electromagnetic shielding
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Abstract
The utility model discloses an electrical property detection tool, contain first holder, second holder and fixing base, in each holder, the flexible circuit board that has multilayer structure is coupled between the cable coupling end at the clamp part of holder front end and holder rear end, the configuration of transmission path substitution cable through in the flexible circuit board, can make to have good symmetry between this section transmission path who has respectively in two holders, the whole weight of tool has been reduced simultaneously, the degree of shielding on the sight has been reduced, the resistance of holder in the operation of the electronic component that awaits measuring with the centre gripping in microbend has also been reduced, promote the convenience in the operation by a wide margin, the exactness in the detection has also been promoted.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a detection device, more specifically say, the utility model relates to an electrical property detection tool for detecting electronic component.
[ background ] A method for producing a semiconductor device
Small electronic components, such as: because of the small size, the electronic components such as resistors, capacitors, inductors, etc. generally need to be tested through the clip-type fixture for the testing equipment to execute the testing procedure. The fixture clamps the corresponding electrical contact on the electronic element to establish a signal transmission path between the electronic element and the test equipment.
However, since the clip-type jig is coupled to the testing device through the cable having the electromagnetic shielding effect, one end of the cable is fixed to the front end of the clip-type jig, which affects the use of the jig due to the size, hardness, and other states of the cable.
For example, the cable with electromagnetic shielding effect is thick, and the volume of the thick cable forms a raised part on the clamping arm of the jig, so that the sight is shielded, the overall weight of the jig is increased, and the operation convenience is further influenced. On the other hand, the thicker wires also make the wires less prone to being bent, which also causes increased resistance when the jig clamps the electronic component through the slightly bent clip arms in use, and causes inconvenience in use. On the other hand, because the cable is welded at the front end of tool, stretch into this section cable of welding point behind the tool at the cable, based on factors such as the anchor clamps inner space is narrow and small, this section between two arm lock of tool is difficult for maintaining this section cable symmetry between two arm lock, leads to signal transmission's error, and then influences the testing result easily.
[ New Contents ]
The utility model discloses an operation convenience that aim at promoted electrical property detection tool.
Another object of the present invention is to improve the correctness of the electrical detection tool in signal transmission.
In order to achieve the above and other objects, the present invention provides an electrical testing fixture for holding an electronic device and transmitting signals through a cable coupled thereto, the electrical testing fixture comprising: a first clamping member, a second clamping member and a fixing seat. The first clamping piece comprises a first arm, a first soft board and a first clamping part arranged at the front end of the first arm, wherein the first soft board is arranged on the first arm and is coupled between the first clamping part and a first coupling end of the cable. The second clamping piece comprises a second arm, a second soft board and a second clamping part arranged at the front end of the second arm, and the second soft board is arranged on the second arm and coupled between the second clamping part and a second coupling end of the cable. The fixing seat is configured to connect the first arm and the second arm. The first soft board and the second soft board are respectively a flexible circuit board with a multilayer structure.
In an embodiment of the present invention, the first flexible board may be disposed on an inner surface of a first arm configured in a flat plate shape, and the second flexible board may be disposed on an inner surface of a second arm configured in a flat plate shape, the inner surface of the first arm and the inner surface of the second arm being opposite to each other.
In an embodiment of the present invention, the first clamping member may further include a first sleeve for partially covering the first soft board and the first arm, and the second clamping member may further include a second sleeve for partially covering the second soft board and the second arm.
In an embodiment of the present invention, each flexible printed circuit board may include an upper electromagnetic shielding layer, a lower electromagnetic shielding layer, and a base layer disposed between the upper electromagnetic shielding layer and the lower electromagnetic shielding layer. The base layer is laid with a transmission line covered by an insulator, the front end of the transmission line is coupled with the corresponding first or second clamping part, and the rear end of the transmission line is coupled with the corresponding first or second coupling end.
In an embodiment of the present invention, in the first clamping member, the lower electromagnetic shielding layer can be configured to be closer to the inner surface of the first arm than the upper electromagnetic shielding layer and the base layer, and in the second clamping member, the lower electromagnetic shielding layer can be configured to be closer to the inner surface of the second arm than the upper electromagnetic shielding layer and the base layer.
In an embodiment of the present invention, the metal material in the upper electromagnetic shielding layer and the lower electromagnetic shielding layer can be configured to cover the corresponding routing path in the transmission line.
In an embodiment of the present invention, the upper electromagnetic shielding layer may have an opening for exposing an end portion of the transmission line, and the first or second coupling end of the cable is coupled to the transmission line through the opening.
Thus, the utility model discloses an in two holders of electrical property detection tool, see through the flexible circuit board and be coupled between the cable of the clamp part of front end and rear end for have good symmetry between this section transmission path who has respectively in two holders, and the transmission path of soft board ization has also reduced the whole weight of tool by a wide margin, the degree of shielding in the sight has been reduced, the resistance of holder in the operation of microbending with the centre gripping electronic component that awaits measuring has also been reduced, promote the convenience in the operation by a wide margin, the exactness in the detection has also been promoted.
[ description of the drawings ]
Fig. 1 is a schematic perspective view of an electrical detection fixture according to an embodiment of the present invention;
fig. 2 is a schematic view of a flexible circuit board of an electrical detection fixture according to an embodiment of the present invention;
fig. 3 is a side view of an electrical testing fixture according to another embodiment of the present invention.
[ detailed description ] embodiments
For a full understanding of the objects, features and functions of the present invention, reference should now be made to the following specific embodiments, taken in conjunction with the accompanying drawings, for a detailed description of the invention, which are illustrated in the following drawings:
in the present application, the terms "a" or "an" are used to describe an element, structure, device, region, or area, etc. for convenience of description and to provide a general sense of the scope of the present invention. Thus, unless clearly indicated to the contrary, this description should be read to include one or at least one and the singular also includes the plural.
In this application, the terms "comprises," "comprising," "has," "having" or any other similar language, are intended to cover a non-exclusive inclusion, such that it does not include other elements, structures, devices, regions, or sections that are not expressly listed but which are generally inherent to such elements, structures, devices, regions, or sections.
In this application, the use of the ordinal number such as "first" or "second" to describe like elements or structures, locations or regions is used to distinguish or refer to the same or similar elements or structures, locations or regions, and does not necessarily imply a spatial order to such elements, structures, devices, locations or regions. It should be understood that in some cases or configurations, ordinal terms may be used interchangeably without affecting the practice of the invention.
Please refer to fig. 1, which is a schematic perspective view of an electrical property detection fixture according to an embodiment of the present invention. The electrical inspection tool 100 is coupled to a testing apparatus (not shown) through a cable 200. The electrical testing fixture 100 includes: a first clamping member 110, a second clamping member 120 and a fixing seat 130.
The first clamp 110 includes: a first arm 111, a first flexible board 112 and a first clamping part 113. The first arm 111 is connected to the fixing base 130, the first arm 111 can be configured to extend from the fixing base 130 (for example, the first arm 111 and the fixing base 130 are integrally formed), or the first arm 111 can be configured as a separate component and fixed to the fixing base 130. The front end (far from the fixing base 130) of the first arm 111 is provided with a first clamping part 113. The first flexible board 112 is disposed on a surface of the first arm 111, for example: the first flexible board 112 is laid flat on the surface of the first arm 111 shaped like a flat plate. The first clip 113 is provided at the front end of the first arm 111. One end of the first flexible board 112 is coupled to the first clamping portion 113, and the other end of the first flexible board 112 is coupled to the cable 200, such as the first coupling end 210 of the cable 200 extending into the fixing base 130 shown in fig. 1.
The second clamp 120 includes: a second arm 121, a second soft plate 122 and a second clamping part 123. The second arm 121 is connected to the fixing base 130, the second arm 121 may be configured to extend from the fixing base 130 (for example, the second arm 121 and the fixing base 130 are integrally formed), or the second arm 121 may be configured as a separate component and fixed to the fixing base 130. The front end of the second arm 121 (far from the fixing base 130) is provided with a second clamping part 123. The second soft plate 122 is disposed on a surface of the second arm 121, for example: the second soft plate 122 is laid on the surface of the second arm 121 configured in a flat plate shape. The second clip portion 123 is provided at the front end of the second arm 121. One end of the second flexible board 122 is coupled to the second clamping portion 123, and the other end of the second flexible board 122 is coupled to the cable 200, such as the second coupling end 220 of the cable 200 extending into the fixing base 130 shown in fig. 1.
The first clamping member 110 and the second clamping member 120 of the electrical testing fixture 100 respectively clamp the electrical contacts corresponding to the tested electronic component (not shown) through the first clamping portion 113 and the second clamping portion 123. The input/output lines and corresponding ground lines in the cable 200 are correspondingly coupled to the first flexible printed circuit board 112 and the second flexible printed circuit board 122. In other words, the transmission paths of the first and second flexible boards 112 and 122 replace the cables that are directly coupled to the first and second clamping portions 113 and 123.
As shown in fig. 1, the first soft plate 112 is disposed on the inner surface 114 of the first arm 111, and the second soft plate 122 is disposed on the inner surface 124 of the second arm 121. In the electrical inspection tool 100, the inner surface 114 of the first arm 111 and the inner surface 124 of the second arm 121 are disposed opposite to each other.
Please refer to fig. 2, which is a schematic diagram of a flexible circuit board of an electrical detection fixture according to an embodiment of the present invention. The first flexible board 112 and the second flexible board 122 are each a flexible circuit board having a multi-layer structure. The flexible circuit board 300 illustrated in fig. 2 may be the first flexible board 112 or the second flexible board 122, and the circuit board structures of the first flexible board 112 and the second flexible board 122 are the same, and for convenience of description, a single flexible circuit board 300 is used for illustration.
In an embodiment of the present invention, the flexible printed circuit 300 at least includes: a three-layer structure of an upper electromagnetic shield layer 310, a base layer 320, and a lower electromagnetic shield layer 330. However, the flexible circuit board 300 may include other layers in addition to the aforementioned three layers. The base layer 320 is disposed between the upper electromagnetic shield layer 310 and the lower electromagnetic shield layer 330, and the transmission line 321 is formed on the base layer 320. The transmission line 321 is illustrated as a single line in fig. 2, but is not limited to a single line, for example, in a four-terminal (4T) electrical inspection tool, there are 2 transmission lines on a single side (in a flexible board).
Referring to fig. 1 and 2, in an aspect of the first clip 110, the lower electromagnetic shielding layer 330 is closer to the inner surface 114 of the first arm 111 than the upper electromagnetic shielding layer 310 and the base layer 320. The lower electromagnetic shielding layer 330 is disposed in the second clamping member 120 and is closer to the inner surface of the second arm 121 than the upper electromagnetic shielding layer 310 and the base layer 320.
The upper and lower electromagnetic shielding layers 310 and 330 form shielding patterns (such as the upper and lower shielding patterns 311 and 331) corresponding to the routing paths of the transmission line 321 by disposing an inner metal material (such as copper), so as to achieve the electromagnetic shielding effect corresponding to the routing paths. Therefore, when a plurality of transmission lines are arranged in a soft board, the metal material has a plurality of strip-shaped arrangement patterns so as to play an electromagnetic shielding role on the corresponding transmission path.
The transmission line 321 is covered between the base layer 320 and the upper electromagnetic shield layer 310 by an insulator (not shown), thereby preventing a short circuit between the transmission line 321 and a metal material. In other embodiments, if the transmission line 321 is formed on the bottom surface of the base layer 320 (opposite to the example of fig. 2), an insulator (not shown) is formed between the base layer 320 and the lower electromagnetic shield layer 330.
The transmission line 321 is used to replace a cable that is directly coupled to the clip, so that the front end of the transmission line 322 is coupled to the clip (the first clip 113 or the second clip 123) illustrated in fig. 1, and the rear end of the transmission line 322 is coupled to the corresponding coupling end (the first coupling end 210 or the second coupling end 220). The clip made of conductive material can be fixed to the arm by a fixing element (not shown, such as a screw) or other fixing means, and the fixing element is coupled to the front portion of the transmission line 322 that is not overlapped with the shielding pattern through the flexible circuit board 300.
In the manner that the transmission line 321 is formed on the top surface of the base layer 320 (as shown in fig. 2), the upper electromagnetic shield layer 310 has an opening 312 for exposing an end portion of the transmission line 321, and the coupling end (the first coupling end 210 or the second coupling end 220) of the cable 200 of fig. 1 is coupled to the transmission line 321 through the opening 312. The top surface of the base layer 320 may have a number corresponding to the number of the transmission lines 321 and pads 322 coupled to the corresponding transmission lines 321, so that the coupling ends of the cable 200 are coupled to the pads 322 by solder.
Next, please refer to fig. 1 and fig. 3, which are side views of an electrical testing fixture according to another embodiment of the present invention. The soft board can be further protected and the electrical connection between the soft board and the clamping part and the coupling end can be stabilized through the sleeve which partially covers the soft board and the arm. On the first clamping member 110, partially covering the first flexible board 112 and the first arm 111 is a first sleeve 410; on the second clamping member 120, the second soft plate 122 and the second sleeve 420 of the second arm 121 are partially covered. The aforementioned sleeve may be, for example, a sleeve made using a heat shrinkable material.
In summary, the transmission paths in the flexible printed circuit board are used to replace cables, and the transmission paths on the flexible printed circuit board are easily and precisely planned and manufactured, so that the transmission paths distributed in the two clamping members have good symmetry. Meanwhile, the use of the flexible board also shortens the use length of the heavy and thick cable in the jig (the section which is connected with the front end clamping part after extending into the jig), so that the whole weight of the jig is effectively reduced, and the flat characteristic of the flexible circuit board reduces the shielding degree of the heavy and thick cable from the sight line (when an operator observes an electronic element). In addition, the flexibility of the flexible circuit board also reduces the resistance of the clamping piece when the clamping piece is operated to be slightly bent to clamp the electronic element to be detected, greatly improves the convenience in operation and also improves the accuracy in detection.
The present invention has been disclosed in the foregoing in terms of preferred embodiments, however, it will be understood by those skilled in the art that the embodiments herein are merely illustrative of the present invention and should not be construed as limiting the scope of the invention. It should be noted that all changes and substitutions equivalent to the embodiments are understood to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
[ reference numerals ]
100. Electrical property detection tool
110. First clamping part
111. First arm
112. First soft board
113. A first clamping part
114. Inner surface
120. Second clamping piece
121. Second arm
122. Second soft board
123. Second clamping part
124. Inner surface
130. Fixed seat
200. Cable wire
210. A first coupling terminal
220. A second coupling terminal
300. Flexible circuit board
310. An upper electromagnetic shielding layer
311. Upper shield pattern
312. Opening holes
320. Base layer
321. Transmission line
322. Bonding pad
330. Lower electromagnetic shielding layer
331. Lower shield pattern
410. First sleeve
420. Second sleeve
Claims (7)
1. An electrical testing fixture for holding an electronic device and transmitting signals through a cable coupled thereto, the electrical testing fixture comprising:
a first clamping member including a first arm, a first flexible board and a first clamping portion disposed at a front end of the first arm, the first flexible board being disposed on the first arm and coupled between the first clamping portion and a first coupling end of the cable;
a second clamping member including a second arm, a second flexible board and a second clamping portion disposed at a front end of the second arm, the second flexible board being disposed on the second arm and coupled between the second clamping portion and a second coupling end of the cable; and
a holder configured to connect the first arm and the second arm,
the first soft board and the second soft board are respectively a flexible circuit board with a multilayer structure.
2. The electrical testing fixture of claim 1, wherein the first flexible board is disposed on an inner surface of the first arm configured as a flat plate, the second flexible board is disposed on an inner surface of the second arm configured as a flat plate, and the inner surface of the first arm and the inner surface of the second arm are opposite to each other.
3. The electrical testing fixture of claim 2, further comprising a first sleeve on the first clamping member for partially covering the first flexible board and the first arm, and a second sleeve on the second clamping member for partially covering the second flexible board and the second arm.
4. The electrical inspection apparatus of any one of claims 1-3, wherein each FPC includes an upper electromagnetic shielding layer, a lower electromagnetic shielding layer, and a base layer disposed between the upper electromagnetic shielding layer and the lower electromagnetic shielding layer, wherein the base layer has a transmission line covered by an insulator, the front end of the transmission line is coupled to the corresponding first or second clip portion, and the rear end of the transmission line is coupled to the corresponding first or second coupling end.
5. The electrical inspection apparatus of claim 4, wherein the lower electromagnetic shield layer is closer to the inner surface of the first arm than the upper electromagnetic shield layer and the base layer in the first clip, and the lower electromagnetic shield layer is closer to the inner surface of the second arm than the upper electromagnetic shield layer and the base layer in the second clip.
6. The electrical inspection tool of claim 4, wherein the metal material of the upper and lower electromagnetic shielding layers covers the corresponding trace path of the transmission line.
7. The electrical inspection apparatus of claim 4, wherein the upper electromagnetic shielding layer has an opening for exposing an end of the transmission line, and the first or second coupling end of the cable is coupled to the transmission line through the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221608736.3U CN217879457U (en) | 2022-06-24 | 2022-06-24 | Electrical property detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221608736.3U CN217879457U (en) | 2022-06-24 | 2022-06-24 | Electrical property detection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217879457U true CN217879457U (en) | 2022-11-22 |
Family
ID=84097281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221608736.3U Active CN217879457U (en) | 2022-06-24 | 2022-06-24 | Electrical property detection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217879457U (en) |
-
2022
- 2022-06-24 CN CN202221608736.3U patent/CN217879457U/en active Active
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