CN212567251U - Lead frame warping degree measuring device - Google Patents
Lead frame warping degree measuring device Download PDFInfo
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- CN212567251U CN212567251U CN202021774852.3U CN202021774852U CN212567251U CN 212567251 U CN212567251 U CN 212567251U CN 202021774852 U CN202021774852 U CN 202021774852U CN 212567251 U CN212567251 U CN 212567251U
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Abstract
The application relates to the technical field of integrated circuit processing, in particular to a lead frame warpage measuring device. The lead frame warpage measuring device comprises a device body, wherein a first plane and a second plane are formed on the device body, and the lead frame can be placed on the first plane; the second plane is vertically connected with one end of the first plane along the first direction; the second plane is provided with a first scale with a preset measuring range, scale marks of the first scale are parallel to the first plane, and the distance between the upper surface of the lead frame placed on the first plane and the first plane can be measured and read through the first scale; a measurer looks up the upper surface of the lead frame on the first plane, can accurately find out the maximum position of the lead frame where the warping deformation occurs through the first scale on the second plane, and reads and records the scale value corresponding to the upper surface of the lead frame at the maximum warping deformation position, namely the maximum warping value of the lead frame through the first scale.
Description
Technical Field
The application relates to the technical field of integrated circuit processing, in particular to a lead frame warpage measuring device.
Background
The lead frame is used as a chip carrier of an integrated circuit and is an important basic material of the integrated circuit industry; the lead frame is usually in a strip shape, and the lead frame strip is usually taken as a production unit to be produced in batches in the production process; in the production process, the lead frame strip needs to be heated, and the lead frame strip is very easy to warp and deform in the heating process due to the fact that the thickness of the lead frame strip is very thin, so that some series of deviations are generated in subsequent operation, the quality defects exist in the final product, and the defective product is generated. Therefore, after each process that can generate warpage deformation is completed, the warpage deformation degree of the lead frame needs to be measured; in the prior art, a vernier caliper is usually used for manual measurement, but the method is not only inefficient, but also has large errors in measurement results.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lead frame angularity measuring device to solve among the prior art technical problem that the angularity of lead frame measures unsafe to a certain extent.
The utility model provides a lead frame warpage measuring device, which comprises a device main body; the device body is formed with a first plane and a second plane; the first plane is used for placing a lead frame, the second plane is arranged at one end of the first plane along a first direction, and the second plane is perpendicular to the first plane; the second plane is provided with a first scale with a preset measuring range, and the scale mark of the first scale is parallel to the first plane.
Further, the device body further comprises a third plane; the third plane is arranged at one end of the first plane along a second direction, and the second direction is perpendicular to the first direction; the first plane, the second plane and the third plane are mutually vertical in pairs; and a second scale with a preset measuring range is formed on the third plane, and the scale mark of the second scale is parallel to the first plane.
Furthermore, the number of the first scales is multiple, and the multiple first scales are arranged at intervals along the second direction.
Furthermore, the number of the second scales is multiple, and the second scales are arranged at intervals along the first direction.
Further, the second plane intersects the first plane at a first straight line, the third plane intersects the first plane at a second straight line, the second plane and the third plane intersect at a third straight line, and the first straight line, the second straight line and the third straight line are perpendicular to each other in pairs.
Further, the zero scale mark of the first scale is located on the first straight line.
Further, the zero graduation mark of the second graduation is located on the second straight line.
Further, the division values of the first scale and the second scale are both 0.5 mm.
Further, the measuring range of the first scale and the second scale is 5-8 mm.
Further, the device main body further comprises a first sliding block and a second sliding block; the first slider is arranged on the first plane in a sliding mode, and the first slider can slide along the first direction to clamp the lead frame between the first slider and the second plane; the second slider is arranged on the first plane in a sliding mode, and the second slider can slide along the second direction to clamp the lead frame between the second slider and the third plane.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a lead frame warpage measuring device includes the device main part, and the device main part is formed with first plane and second plane, and the device main part can be placed horizontally, and first plane lies in the horizontal direction, and the lead frame that awaits measuring can be placed on first plane; the first plane is rectangular and has a width along the first direction and a length along the second direction, the second plane is also rectangular and is arranged along the vertical direction, the second plane has a length along the second direction and a height along the vertical direction, and the lower end of the second plane is vertically connected with one end of the first plane in the width direction; the second plane is provided with a first scale with a preset measuring range, scale marks of the first scale are parallel to the first plane, and the distance between the upper surface of the lead frame placed on the first plane and the first plane can be measured and read through the first scale; when the warping degree of the lead frame is measured, the lead frame is placed on a first plane, the length direction of the lead frame is the same as the length direction of the first plane, the width direction of the lead frame is the same as the width direction of the first plane, and meanwhile one end of the lead frame in the width direction abuts against a second plane; the measuring staff level-up the upper surface of the lead frame, the distance between each position of the upper surface of the lead frame in the length direction and the first plane can be obtained through the first scale on the second plane, so that the maximum position of the lead frame where the warping deformation occurs can be accurately found out, and the scale value corresponding to the upper surface of the lead frame at the maximum position of the warping deformation, namely the maximum warping value of the lead frame, is read through the first scale and recorded.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lead frame warp degree measuring device provided by the embodiment of the utility model.
Reference numerals:
1-first plane, 2-second plane, 21-first scale, 3-third plane, 31-second scale.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A leadframe warp measurement apparatus according to some embodiments of the present application is described below with reference to fig. 1.
The application provides a lead frame warpage measuring device, as shown in fig. 1, comprising a device body; the device body is provided with a first plane 1 and a second plane 2, the first plane 1 is used for placing a lead frame, the second plane 2 is arranged at one end of the first plane 1 along a first direction, and the second plane 2 is perpendicular to the first plane 1; the second plane 2 is formed with a first scale 21 having a predetermined range, and the scale lines of the first scale 21 and the first plane 1 are parallel to each other.
The application provides a lead frame warpage measuring device, which is used for measuring the warpage of a strip-shaped lead frame; the lead frame warpage measuring device comprises a device main body, wherein a first plane 1 and a second plane 2 are formed on the device main body, the device main body can be horizontally placed, the first plane 1 is located in the horizontal direction at the moment, and a lead frame to be measured can be placed on the first plane 1; the first plane 1 is rectangular and has a width along a first direction and a length along a second direction, the second plane 2 is also rectangular, the second plane 2 is arranged along a vertical direction, the second plane 2 has a length along the second direction and a height along the vertical direction, and the lower end of the second plane 2 is vertically connected with one end of the first plane 1 in the width direction; the second plane 2 is provided with a first scale 21 with a preset measuring range, the scale lines of the first scale 21 are parallel to the first plane 1, and the distance between the upper surface of the lead frame and the first plane 1 can be measured and read through the first scale 21; preferably, the intersection of the first plane 1 and the second plane 2 forms a first straight line, and the zero graduation line of the first graduation 21 is located on the first straight line, so that the height of the upper surface of the lead frame placed on the first plane 1 from the first plane 1 can be read through the first graduation 21. When the warping degree of the lead frame is measured, the lead frame is placed on the first plane 1, the length direction of the lead frame is the same as that of the first plane 1, the width direction of the lead frame is the same as that of the first plane 1, and meanwhile, one end of the lead frame in the width direction abuts against the second plane 2; the measurer looks at the upper surface of the lead frame horizontally, the height between each position of the upper surface of the lead frame in the length direction and the first plane 1 can be obtained through the first scale 21 on the second plane 2, so that the maximum position of the lead frame where the warping deformation occurs can be accurately found, and the scale value corresponding to the upper surface of the lead frame at the maximum warping deformation position, namely the maximum warping value of the lead frame, is read through the first scale 21 and recorded.
In one embodiment of the present application, preferably, as shown in fig. 1, the device body further includes a third plane 3; the third plane 3 is arranged at one end of the first plane 1 along a second direction, and the second direction is perpendicular to the first direction; the first plane 1, the second plane 2 and the third plane 3 are mutually vertical in pairs; the third plane 3 is formed with a second scale 31 having a predetermined range, and the scale lines of the second scale 31 and the first plane 1 are parallel to each other.
In this embodiment, the apparatus main body further includes a third plane 3 having a rectangular shape, the third plane 3 being disposed in a vertical direction, the third plane 3 having a length in the first direction and a height in the vertical direction, a lower end of the third plane 3 being perpendicularly connected to one end in the length direction of the first plane 1, while one end in the length direction of the third plane 3 is perpendicularly connected to one end in the length direction of the second plane 2, so that the first plane 1, the second plane 2, and the third plane 3 are perpendicular to each other two by two. The third plane 3 is formed with a second scale 31 with a predetermined range, and the scale lines of the second scale 31 are parallel to the first plane 1. Preferably, the intersection of the third plane 3 and the first plane 1 forms a second straight line, and the zero graduation line of the second graduation 31 is located on the second straight line, so that the height of the upper surface of the lead frame placed on the first plane 1 from the first plane 1 can be read through the second graduation 31. When the lead frame is measured, the lead frame is placed on the first plane 1, one end of the lead frame in the length direction abuts against the third plane 3, and one end of the lead frame in the width direction abuts against the second plane 2; a measurer looks at the upper surface of the lead frame horizontally and observes all positions of the upper surface of the lead frame from the first direction and the second direction respectively, finds out the maximum position of the lead frame where the warping deformation occurs by matching the first scale 21 and the second scale 31, and then reads out and records the scale value corresponding to the upper surface of the lead frame at the maximum warping deformation position from the first scale 21 or the second scale 31.
In this embodiment, preferably, the second plane 2 intersects the first plane 1 in a first straight line, the third plane 3 intersects the first plane 1 in a second straight line, the second plane 2 intersects the third plane 3 in a third straight line, and the first straight line, the second straight line, and the third straight line are perpendicular to each other in pairs, so that after the lead frame is placed on the first plane 1, one end in the length direction of the lead frame can abut against the third plane 3, and one end in the width direction of the lead frame can abut against the second plane 2, so that when measuring the warpage of the lead frame, a measurer can more accurately find out the large warpage position of the lead frame, and read the scale value corresponding to the upper surface of the lead frame at the maximum warpage position of the lead frame.
In one embodiment of the present application, preferably, as shown in fig. 1, the number of the first scales 21 is plural, and the plural first scales 21 are arranged at intervals in the second direction. The number of the second scales 31 is plural, and the plural second scales 31 are arranged at intervals along the first direction.
In this embodiment, the first scales 21 on the second plane 2 are used for measuring the heights of the upper surface of the lead frame along the length direction thereof, and in order to facilitate a measurer to correspond the upper surface of the lead frame to the scale values on the first scales 21 and read the corresponding values, the number of the first scales 21 is set to be plural, and the plural first scales 21 are distributed at intervals along the length direction of the second plane 2, i.e., the length direction of the lead frame. The number of the second scales 31 on the third plane 3 is also plural, the second scales 31 are used for measuring the height of the upper surface of the lead frame at each position along the width direction of the upper surface, and the plural second scales 31 are arranged along the length direction of the third plane 3, namely the width direction of the lead frame at intervals. Therefore, the measurer can more conveniently observe the corresponding scale values on the first scale 21 and the second scale 31 at the positions of the upper surface of the lead frame, so that the measurer can accurately find out the maximum position of the lead frame where the warping deformation occurs and read the corresponding scale value at the position.
Specifically, as shown in fig. 1, the device main body is mainly formed by enclosing three rectangular flat plates, namely a first flat plate, a second flat plate and a third flat plate, wherein the first flat plate, the second flat plate and the third flat plate are connected with each other in a pairwise perpendicular manner; the first flat plate is horizontally placed, the upper surface of the first flat plate is the first flat surface 1, the side plate surface of the second flat plate facing the first flat plate and perpendicular to the first flat plate is the second flat surface 2, and the side plate surface of the third flat plate facing the first flat plate and perpendicular to the first flat plate is the third flat surface 3. Preferably, the device body is integrally formed, and the transitional connection positions of the three flat plates are connected at right angles, so that when the lead frame is measured, the lead frame can be stably placed on the first flat plate, and the side walls of the lead frame can abut against the second flat plate and the third flat plate.
In one embodiment of the present application, preferably, the division values of the first scale 21 and the second scale 31 are both 0.5 mm; the range of the first scale 21 and the second scale 31 is 5-8 mm.
In this embodiment, in order to satisfy the thickness of the lead frame and the warpage that may occur, the scale of the first scale 21 and the second scale 31 is set to 5-8mm, and the division value of the first scale 21 and the second scale 31 is set to 0.5 mm. Specifically, the first scale 21 and the second scale 31 are formed by alternately arranging long scale marks and short scale marks at equal intervals, the interval between any two adjacent long scale marks is 1mm, no short scale mark is arranged between two long scale marks, and the interval between the short scale mark and the adjacent long scale mark is 0.5mm, so that a measurer can read the scale value corresponding to the upper surface of the impression frame conveniently.
In one embodiment of the present application, preferably, the device main body further includes a first slider and a second slider; the first slider is arranged on the first plane 1 in a sliding mode and can slide along a first direction so as to clamp the lead frame between the first slider and the second plane 2; the second slider is slidably disposed on the first plane 1, and the second slider can slide along the second direction to clamp the lead frame between the second slider and the third plane 3.
In this embodiment, the device main body further comprises a first slider and a second slider which are slidably disposed on the first plane 1, wherein the first slider can slide on the first plane 1 along a first direction, and the second slider can slide on the first plane 1 along a second direction; after the lead frame to be measured is placed on the first plane 1, the first sliding block can be made to abut against one end, far away from the second plane 2, of the lead frame by sliding the first sliding block, so that the lead frame is clamped between the first sliding block and the second plane 2, and the lead frame abuts against the second plane 2; similarly, sliding the second slider can cause the second slider to abut against one end of the lead frame away from the third plane 3, thereby clamping the lead frame between the second slider and the third plane 3 and causing the lead frame to abut against the third plane 3; therefore, the lead frame can be stably placed on the first plane 1 and abutted against the second plane 2 and the third plane 3, and the lead frame cannot be displaced in the measuring process to cause inaccurate measuring results.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A lead frame warpage measuring device is characterized by comprising a device body;
the device body is formed with a first plane and a second plane;
the first plane is used for placing a lead frame, the second plane is arranged at one end of the first plane along a first direction, and the second plane is perpendicular to the first plane;
the second plane is provided with a first scale with a preset measuring range, and the scale mark of the first scale is parallel to the first plane.
2. The lead frame warp measurement device of claim 1, wherein the device body further comprises a third planar surface;
the third plane is arranged at one end of the first plane along a second direction, and the second direction is perpendicular to the first direction;
the first plane, the second plane and the third plane are mutually vertical in pairs;
and a second scale with a preset measuring range is formed on the third plane, and the scale mark of the second scale is parallel to the first plane.
3. The device for measuring the warpage of the lead frame according to claim 2, wherein the first scale is provided in plurality, and the plurality of first scales are arranged at intervals along the second direction.
4. The device for measuring the warpage of a lead frame according to claim 2, wherein the second scale is provided in plurality, and the plurality of second scales are arranged at intervals along the first direction.
5. The leadframe warpage measuring apparatus of claim 2, wherein the second plane intersects the first plane on a first straight line, the third plane intersects the first plane on a second straight line, the second plane and the third plane intersect on a third straight line, and the first straight line, the second straight line and the third straight line are perpendicular to each other two by two.
6. The leadframe warp measuring device of claim 5, wherein the zero tick mark of the first tick mark is located on the first straight line.
7. The lead frame warpage measuring device of claim 5, wherein the zero-scale line of the second scale is located on the second straight line.
8. The lead frame warpage measuring device of claim 2, wherein the first scale and the second scale are each 0.5mm in division.
9. The lead frame warpage measuring device of claim 2, wherein the first scale and the second scale have a range of 5-8 mm.
10. The lead frame warpage measuring device of claim 2, further comprising a first slider and a second slider on the device body;
the first slider is arranged on the first plane in a sliding mode, and the first slider can slide along the first direction to clamp the lead frame between the first slider and the second plane;
the second slider is arranged on the first plane in a sliding mode, and the second slider can slide along the second direction to clamp the lead frame between the second slider and the third plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021774852.3U CN212567251U (en) | 2020-08-24 | 2020-08-24 | Lead frame warping degree measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021774852.3U CN212567251U (en) | 2020-08-24 | 2020-08-24 | Lead frame warping degree measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212567251U true CN212567251U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021774852.3U Active CN212567251U (en) | 2020-08-24 | 2020-08-24 | Lead frame warping degree measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212567251U (en) |
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2020
- 2020-08-24 CN CN202021774852.3U patent/CN212567251U/en active Active
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