CN203617289U - Lead frame - Google Patents
Lead frame Download PDFInfo
- Publication number
- CN203617289U CN203617289U CN201320701928.3U CN201320701928U CN203617289U CN 203617289 U CN203617289 U CN 203617289U CN 201320701928 U CN201320701928 U CN 201320701928U CN 203617289 U CN203617289 U CN 203617289U
- Authority
- CN
- China
- Prior art keywords
- lead frame
- lead
- terminal pin
- utility
- model
- 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
Links
Images
Abstract
The utility model discloses a lead frame, which is formed by connecting a plurality of lead frame units in a single row, wherein the lead frame units are connected with each other through connecting ribs, the lead frame unit comprises a base body and lead pins, a connecting part of the base body and the lead pin is bent, the number of the lead pins is five, the five lead pins are arranged at an equal interval, the lead pin is provided with a heat radiating piece, the base body is provided with a boss, and adjacent lead frame units are provided with a positioning hole therebetween. The lead frame disclosed by the utility model is simple in structure, safe, reliable and low in production cost, and saves materials.
Description
Technical field
The utility model relates to a kind of lead frame.
Background technology
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 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 lead frame.
In order to solve the problems of the technologies described above, the utility model provides a kind of lead frame, by multiple lead frames unit single composition, each lead frame interconnects by dowel between unit, lead frame unit comprises matrix and terminal pin, bend in matrix and terminal pin junction, described terminal pin is provided with five and equidistant arrangement.
As further improvement of the utility model, described terminal pin is provided with fin.
As further improvement of the utility model, described matrix is provided with boss.
As further improvement of the utility model, described lead frame is provided with location hole between unit.
Adopt said structure, its beneficial effect is: this lead frame structure is simple, is convenient to install, and terminal pin increases fin, avoids excess Temperature, and body portion is provided with a boss makes earth connection more reliable, saves material while production simultaneously, reduces costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model lead frame.
Fig. 2 is the body portion end view of the utility model lead frame.
In figure: 1-lead frame unit, 2-matrix, 3-terminal pin, 4-fin, 5-boss, 6-location hole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
As illustrated in fig. 1 and 2, a kind of lead frame, by 1 single composition of multiple lead frames unit, between each lead frame unit 1, interconnect by dowel, the width of lead frame unit 1 is 11.405 ± 0.025mm, lead frame unit 1 comprises matrix 2 and terminal pin 3, matrix 2 partial-lengths are 9.49 ± 0.1mm, thickness is 1.27 ± 0.015mm, the thickness of terminal pin 3 is 0.38 ± 0.01mm, bend in matrix 2 and terminal pin 3 junctions, make matrix 2 and terminal pin 3 planes at a distance of 2.67 ± 0.1mm, described terminal pin 3 is provided with five and equidistant arrangement, described terminal pin 3 is provided with fin 4, described matrix 2 is provided with boss 5, the height of described boss 5 is 0.38mm, between described lead frame unit 1, be provided with location hole 6, the diameter of location hole 6 is 1.52 ± 0.03mm.
This lead frame structure is simple, is convenient to install, safe and reliable, and production cost is lower simultaneously, saves material.
Within the similar designed 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 lead frame, by multiple lead frames unit (1) single composition, between each lead frame unit (1), interconnect by dowel, it is characterized in that: lead frame unit (1) comprises matrix (2) and terminal pin (3), bend in matrix (2) and terminal pin (3) junction, described terminal pin (3) is provided with five and equidistant arrangement.
2. a kind of lead frame according to claim 1, is characterized in that: described terminal pin (3) is provided with fin (4).
3. a kind of lead frame according to claim 1, is characterized in that: described matrix (2) is provided with boss (5).
4. a kind of lead frame according to claim 1, is characterized in that: between described lead frame unit (1), be provided with location hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701928.3U CN203617289U (en) | 2013-11-08 | 2013-11-08 | Lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701928.3U CN203617289U (en) | 2013-11-08 | 2013-11-08 | Lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617289U true CN203617289U (en) | 2014-05-28 |
Family
ID=50769915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701928.3U Expired - Fee Related CN203617289U (en) | 2013-11-08 | 2013-11-08 | Lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617289U (en) |
-
2013
- 2013-11-08 CN CN201320701928.3U patent/CN203617289U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203850280U (en) | Double-chip plastic-sealed lead frame | |
| CN203850288U (en) | Plastic-sealed lead frame with separated heat radiating fins | |
| CN103617984A (en) | Plastic package lead frame | |
| CN203617289U (en) | Lead frame | |
| CN203850287U (en) | Plastic-sealed lead frame in full packaging manner | |
| CN203617290U (en) | Lead frame with pits | |
| CN203617285U (en) | Lead frame capable of radiating heat quickly | |
| CN203617282U (en) | Lead frame applied to low-power electrical appliance | |
| CN203589012U (en) | Thickened lead frame | |
| CN203617286U (en) | Lead frame with head being opened | |
| CN203850286U (en) | Plastic-sealed lead frame suitable for high-temperature environment | |
| CN203850279U (en) | Plastic-sealed lead frame suitable for high-power electrical appliances | |
| CN203850285U (en) | Thickened plastic-sealed lead frame | |
| CN203617281U (en) | Lead frame convenient for packaging | |
| CN203617283U (en) | Low-power lead frame | |
| CN203850290U (en) | Plastic-sealed lead frame suitable for high-temperature electrical appliances | |
| CN203617287U (en) | Lead frame with sawtooth pressing marks | |
| CN203850283U (en) | Plastic-sealed lead frame with pressing marks | |
| CN203850277U (en) | A plastic package lead wire framework with bosses formed through pressing | |
| CN103617979A (en) | Plastic package lead frame convenient to package | |
| CN103943596A (en) | Fully packaged type lead frame | |
| CN103928429A (en) | Lead frame with split cooling fins | |
| CN204045577U (en) | A kind of lead frame for integrated circuit | |
| CN203850289U (en) | Plastic-sealed lead frame for low-power electrical appliances | |
| CN204130522U (en) | A kind of lead frame of local silver-plating |
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: 20140528 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |