CN203850290U - Plastic-sealed lead frame suitable for high-temperature electrical appliances - Google Patents

Plastic-sealed lead frame suitable for high-temperature electrical appliances Download PDF

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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
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CN
China
Prior art keywords
lead frame
fin
plastic
heat radiating
radiating fin
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
Application number
CN201420145513.7U
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Chinese (zh)
Inventor
张轩
Original Assignee
张轩
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 张轩 filed Critical 张轩
Priority to CN201420145513.7U priority Critical patent/CN203850290U/en
Application granted granted Critical
Publication of CN203850290U publication Critical patent/CN203850290U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of plastic packaging lead frame that is applicable to high temperature electric equipment
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).
CN201420145513.7U 2014-03-28 2014-03-28 Plastic-sealed lead frame suitable for high-temperature electrical appliances Expired - Fee Related CN203850290U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
GR01 Patent grant
C14 Grant of patent or utility model
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