CN203850290U - Plastic-sealed lead frame suitable for high-temperature electrical appliances - Google Patents
Plastic-sealed lead frame suitable for high-temperature electrical appliances Download PDFInfo
- Publication number
- CN203850290U CN203850290U CN201420145513.7U CN201420145513U CN203850290U CN 203850290 U CN203850290 U CN 203850290U CN 201420145513 U CN201420145513 U CN 201420145513U CN 203850290 U CN203850290 U CN 203850290U
- Authority
- CN
- China
- Prior art keywords
- lead frame
- fin
- heat radiating
- radiating fin
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a plastic-sealed lead frame suitable for high-temperature electrical appliances, which is composed of a plurality of lead frame units in one row. The lead frame units are interconnected through a connecting rib. Each lead frame unit comprises a heat radiating fin and lead legs. The connecting parts between the heat radiating fin and the lead legs are bent. The thickness of the heat radiating fin is 1.3+/-0.015mm. The thickness of the lead leg is 0.5+/-0.015mm. The distance between the plane of the heat radiating fin and the plane of the lead legs is 2.33+/-0.05mm. The heat radiating fin is provided with a square pressing tank of which the depth is 0.2+/-0.01mm. The plastic-sealed lead frame is widely applied for the high-power and high-temperature electrical appliances which operate for long time. The pressing tank which is arranged in each heat radiating fin improves combination between plastic sealing material and a frame.
Description
Technical field
The utility model relates to a kind of plastic packaging lead frame.
Background technology
Plastic packaging lead frame is as the chip carrier of integrated circuit, it is a kind of electrical connection that realizes chip internal circuit exit and outer lead by means of bonding material (spun gold, aluminium wire, copper wire), form the key structure part of electric loop, it has played the function served as bridge being connected with outer lead, in the semiconductor integrated block of the overwhelming majority, all needing to use plastic packaging plastic packaging lead frame, is basic material important in electronics and information industry.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of plastic packaging lead frame that is applicable to high temperature electric equipment.
In order to solve the problems of the technologies described above, the utility model provides a kind of plastic packaging lead frame that is applicable to high temperature electric equipment, by a plurality of lead frames unit single composition, between each lead frame unit, by dowel, interconnect, described lead frame unit comprises fin and terminal pin, bends in fin and terminal pin junction, and fin thickness is 1.3 ± 0.015mm, terminal pin thickness is 0.5 ± 0.015mm, and fin and terminal pin plane of living in is at a distance of 2.33 ± 0.05mm.
As further improvement of the utility model, the width of described lead frame unit is 11.405 ± 0.025mm.
As further improvement of the utility model, described lead frame unit is provided with location hole, and the diameter of location hole is 2 ± 0.06mm.
As further improvement of the utility model, described fin is provided with square indent, the dark 0.2 ± 0.01mm of indent.
Adopt said structure, its beneficial effect is: in high temperature electric equipment that this plastic packaging lead frame is widely used in working long hours, powerful, the indent that fin is provided with has strengthened the combination of plastic packaging material and framework.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-lead frame unit, 2-fin, 3-terminal pin, 4-location hole, 5-indent.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
As shown in Fig. 1, a kind of plastic packaging lead frame that is applicable to high temperature electric equipment, by 1 single composition of a plurality of lead frames unit, between each lead frame unit 1, by dowel, interconnect, described lead frame unit 1 comprises fin 2 and terminal pin 3, bend in fin 2 and terminal pin 3 junctions, fin 2 thickness are 1.3 ± 0.015mm, terminal pin 3 thickness are 0.5 ± 0.015mm, fin 2 and terminal pin 3 plane of living in are at a distance of 2.33 ± 0.05mm, the width of described lead frame unit 1 is 11.405 ± 0.025mm, described lead frame unit 1 is provided with location hole 4, the diameter of location hole 4 is 2 ± 0.06mm, described fin 2 is provided with square indent 5, dark 0.2 ± the 0.01mm of indent 5.
In high temperature electric equipment that this plastic packaging lead frame is widely used in working long hours, powerful, the indent 5 that fin 2 is provided with has strengthened the combination of plastic packaging material and framework.
Within the similar designed plastic packaging lead frame of technical characterictic of any employing and the utility model will fall into protection range of the present utility model.
Claims (4)
1. a plastic packaging lead frame that is applicable to high temperature electric equipment, by a plurality of lead frames unit (1) single composition, between each lead frame unit (1), by dowel, interconnect, it is characterized in that: described lead frame unit (1) comprises fin (2) and terminal pin (3), bend in fin (2) and terminal pin (3) junction, fin (2) thickness is 1.3 ± 0.015mm, terminal pin (3) thickness is 0.5 ± 0.015mm, and fin (2) and terminal pin (3) plane of living in are at a distance of 2.33 ± 0.05mm.
2. a kind of plastic packaging lead frame that is applicable to high temperature electric equipment according to claim 1, is characterized in that: the width of described lead frame unit (1) is 11.405 ± 0.025mm.
3. a kind of plastic packaging lead frame that is applicable to high temperature electric equipment according to claim 1, is characterized in that: described lead frame unit (1) is provided with location hole (4), and the diameter of location hole (4) is 2 ± 0.06mm.
4. a kind of plastic packaging lead frame that is applicable to high temperature electric equipment according to claim 1, is characterized in that: described fin (2) is provided with square indent (5), the dark 0.2 ± 0.01mm of indent (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145513.7U CN203850290U (en) | 2014-03-28 | 2014-03-28 | Plastic-sealed lead frame suitable for high-temperature electrical appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145513.7U CN203850290U (en) | 2014-03-28 | 2014-03-28 | Plastic-sealed lead frame suitable for high-temperature electrical appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850290U true CN203850290U (en) | 2014-09-24 |
Family
ID=51563270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145513.7U Expired - Fee Related CN203850290U (en) | 2014-03-28 | 2014-03-28 | Plastic-sealed lead frame suitable for high-temperature electrical appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943597A (en) * | 2014-03-28 | 2014-07-23 | 张轩 | Lead frame applicable to high-temperature electric equipment |
-
2014
- 2014-03-28 CN CN201420145513.7U patent/CN203850290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943597A (en) * | 2014-03-28 | 2014-07-23 | 张轩 | Lead frame applicable to high-temperature electric equipment |
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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: 20140924 Termination date: 20170328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |