CN203405176U - Bonding wire arc height testing fixture - Google Patents
Bonding wire arc height testing fixture Download PDFInfo
- Publication number
- CN203405176U CN203405176U CN201320411069.4U CN201320411069U CN203405176U CN 203405176 U CN203405176 U CN 203405176U CN 201320411069 U CN201320411069 U CN 201320411069U CN 203405176 U CN203405176 U CN 203405176U
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- bonding line
- bonding
- bonding wire
- main body
- camber
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Abstract
The utility model discloses a bonding wire arc height testing fixture which comprises a fixture main body, wherein an inverted L-shaped groove is formed in the upper surface of the fixture main body, and a long inclined plane and a short inclined plane of the inverted L-shaped groove are perpendicular. A tube housing to be tested is placed on the fixture with a certain inclination angle; the length of a projection of a bonding wire can be measured by virtue of a microscope; the arc height is calculated according to a corresponding formula; the accuracy of the bonding wire arc height measured by the method is +- 20 [mu]m; a measurement requirement of a circuit design on the packaged bonding wire is met; arc height measurement of a microwave device in a packaged bonding process is achieved very well; and the fixture is simple in structure, low in cost and convenient to use and maintain.
Description
Technical field
The utility model has related to a kind of test fixture, has especially related to a kind of bonding line camber test fixture, belongs to electronic technology field.
Background technology
microwave power device is widely used in communication system and radar system.In the design of microwave device, the camber of para-linkage line requires highlyer, because the camber of bonding line is excessive or the too small size that directly has influence on inductance in circuit, directly affects the input and output performance of product.And bonding line is could measure after completing bonding, cannot directly measure camber under the microscope, during by 90 ° of circuit upsets, the sidewall of shell blocks inner lead completely, also cannot directly measure camber.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of bonding line camber test fixture, shell to be tested is placed on the fixture at certain angle of inclination, can measure by microscope the length of bonding line projection, according to corresponding formula, calculate camber, the bonding line camber precision that the method is measured, at ± 20 μ m, meets the measurement requirement of circuit design to encapsulation bonding line.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A camber test fixture, comprises jig main body, and the upper surface of described jig main body is provided with inverted L shape groove, mutually vertical between the Yu Duan inclined-plane, long inclined-plane of described inverted L shape groove.
Aforesaid a kind of bonding line camber test fixture, is characterized in that: the long inclined-plane of described L-type groove and the angular range between surface level are 30 °-60 °.
Aforesaid a kind of bonding line camber test fixture, is characterized in that: the long inclined-plane of described L-type groove and the angle between surface level are preferably 30 ° or 45 ° or 60 °.
Aforesaid a kind of bonding line camber test fixture, is characterized in that: the surface of described jig main body is through grinding process.
Aforesaid a kind of bonding line camber test fixture, is characterized in that: described jig main body is metal material.
Aforementioned fixture carries out bonding line camber method of testing, it is characterized in that: comprise the steps:
(1) shell that is welded with chip is placed in L-type groove, and makes the leading foot on shell parallel with the short inclined-plane of described L-type groove;
(2), when two bonding points of bonding line are sustained height, utilize the high-power microscope with measurement function to measure the vertical range L of line between peak to two bonding point of bonding line
1, the camber H of this bonding line
1for:
H
1=?L1·sinα，
Wherein α is the long inclined-plane of L-type groove and the angle between surface level;
When two bonding points of bonding line are differing heights, if a lower end points of options button zygonema draw one be parallel to shell bottom surface and with the crossing straight line of this bonding line, utilize the high-power microscope with measurement function to measure the peak of bonding line to the vertical range L of this straight line
2, the camber H of this bonding line
2for:
H
2=?L
2·sinα，
Wherein α is the long inclined-plane of L-type groove and the angle between surface level;
If a higher end points of options button zygonema draw one be parallel to shell bottom surface and with the crossing straight line of this bonding line, utilize the high-power microscope with measurement function to measure the peak of bonding line to the vertical range L of this straight line
3, the camber H of this bonding line
3for:
H
3=?L
3·sinα+H，
Wherein α is the long inclined-plane of L-type groove and the angle between surface level, and H is two vertical ranges between height bonding point, and this vertical range is one of them parameter in shell design process.
The beneficial effects of the utility model are: by shell to be tested being placed on the fixture at certain angle of inclination, can measure by microscope the length of bonding line projection, according to corresponding formula, calculate camber, the bonding line camber precision that the method is measured is at ± 20 μ m, meet the measurement requirement of circuit design to encapsulation bonding line, solve well microwave device in encapsulation the camber in bonding process measure problem, and simple in structure, cost is low, easy to use and safeguard.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bonding line camber of the utility model test fixture;
Fig. 2 is the structural representation after the utility model is placed on test fixture by shell;
Fig. 3 is the vertical view of the utility model shell to be tested;
Fig. 4 is the side view of utility model shell to be tested.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
As Figure 1-Figure 4, a kind of bonding line camber test fixture, comprises jig main body 1, and the upper surface of described jig main body 1 is provided with inverted L shape groove, mutually vertical between the 11Yu Duan inclined-plane, long inclined-plane 12 of described inverted L shape groove.By shell to be tested 2 being placed on the jig main body 1 at certain angle of inclination, can measure by microscope the length of bonding line projection, according to corresponding formula, calculate camber, the bonding line camber precision that the method is measured is at ± 20 μ m, meet the measurement requirement of circuit design to encapsulation bonding line, solve well microwave device in encapsulation the camber in bonding process measure problem, and simple in structure, cost is low, easy to use and safeguard.
Concrete method of testing is as follows: the shell 2 that is welded with chip 3 is placed in L-type groove, and makes the leading foot 5 on shell 2 parallel with the short inclined-plane 12 of described L-type groove;
When two bonding points of bonding line are sustained height, utilize the high-power microscope with measurement function to measure the vertical range L of line between peak to two bonding point of bonding line
1, the camber H of this bonding line
1for:
H
1=?L1·sinα，
Wherein α is the long inclined-plane 11 of L-type groove and the angle between surface level;
When two bonding points of bonding line are differing heights, if a lower end points of options button zygonema draw one be parallel to shell 2 bottom surfaces and with the crossing straight line of this bonding line, utilize the high-power microscope with measurement function to measure the peak of bonding line to the vertical range L of this straight line
2, the camber H of this bonding line
2for:
H
2=?L
2·sinα，
Wherein α is the long inclined-plane 11 of L-type groove and the angle between surface level;
If a higher end points of options button zygonema draw one be parallel to shell 2 bottom surfaces and with the crossing straight line of this bonding line, utilize the high-power microscope with measurement function to measure the peak of bonding line to the vertical range L of this straight line
3, the camber H of this bonding line
3for:
H
3=?L
3·sinα+H，
Wherein α is the long inclined-plane 11 of L-type groove and the angle between surface level, and H is two vertical ranges between height bonding point, and this vertical range is one of them parameter in shell 2 design processes.
The long inclined-plane 11 of described L-type groove and the angular range between surface level are 30 °-60 °, are preferably 30 ° or 45 ° or 60 °, are convenient to calculate.
Jig main body 1 is metal material, and surface through grinding process, keeps surfacing, to reduce the scuffing of circuit etc.
More than show and described ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (5)
1. a bonding line camber test fixture, comprises jig main body (1), it is characterized in that: the upper surface of described jig main body (1) is provided with inverted L shape groove, mutually vertical between the long inclined-plane (11) of described inverted L shape groove and short inclined-plane (12).
2. a kind of bonding line camber test fixture according to claim 1, is characterized in that: the long inclined-plane (11) of described L-type groove and the angular range between surface level are 30 °-60 °.
3. a kind of bonding line camber test fixture according to claim 2, is characterized in that: the long inclined-plane (11) of described L-type groove and the angle between surface level are preferably 30 ° or 45 ° or 60 °.
4. according to a kind of bonding line camber test fixture described in any one in claim 1-3, it is characterized in that: the surface of described jig main body (1) is through grinding process.
5. a kind of bonding line camber test fixture according to claim 4, is characterized in that: described jig main body (1) is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411069.4U CN203405176U (en) | 2013-07-11 | 2013-07-11 | Bonding wire arc height testing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411069.4U CN203405176U (en) | 2013-07-11 | 2013-07-11 | Bonding wire arc height testing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405176U true CN203405176U (en) | 2014-01-22 |
Family
ID=49941107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411069.4U Expired - Fee Related CN203405176U (en) | 2013-07-11 | 2013-07-11 | Bonding wire arc height testing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203405176U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335599A (en) * | 2013-07-11 | 2013-10-02 | 江苏博普电子科技有限责任公司 | Bonding wire arc height testing fixture and testing method thereof |
| CN105047596A (en) * | 2015-06-10 | 2015-11-11 | 江苏杰进微电子科技有限公司 | Integrated circuit chip test positioning device |
| CN112964183A (en) * | 2021-03-12 | 2021-06-15 | 四川旭虹光电科技有限公司 | Arc height measuring method |
-
2013
- 2013-07-11 CN CN201320411069.4U patent/CN203405176U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335599A (en) * | 2013-07-11 | 2013-10-02 | 江苏博普电子科技有限责任公司 | Bonding wire arc height testing fixture and testing method thereof |
| CN103335599B (en) * | 2013-07-11 | 2016-07-20 | 江苏博普电子科技有限责任公司 | A kind of bonding line camber test fixture and method of testing thereof |
| CN105047596A (en) * | 2015-06-10 | 2015-11-11 | 江苏杰进微电子科技有限公司 | Integrated circuit chip test positioning device |
| CN112964183A (en) * | 2021-03-12 | 2021-06-15 | 四川旭虹光电科技有限公司 | Arc height measuring method |
| CN112964183B (en) * | 2021-03-12 | 2022-04-12 | 四川涪盛科技有限公司 | Arc height measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |