CN203760461U - Lead frame plate component - Google Patents
Lead frame plate component Download PDFInfo
- Publication number
- CN203760461U CN203760461U CN201420182694.0U CN201420182694U CN203760461U CN 203760461 U CN203760461 U CN 203760461U CN 201420182694 U CN201420182694 U CN 201420182694U CN 203760461 U CN203760461 U CN 203760461U
- Authority
- CN
- China
- Prior art keywords
- lead frame
- frame version
- version part
- frame plate
- slide glass
- 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 - Lifetime
Links
- 239000011521 glass Substances 0.000 claims description 13
- 238000007373 indentation Methods 0.000 claims description 9
- 241000397426 Centroberyx lineatus Species 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Abstract
The utility model discloses a lead frame plate component. The lead frame plate component consists of a plurality of single elements (1) and two upper and lower sidebands (2) enabling the single elements (1) to be connected. Each single element (1) consists of a carrier area (1.1) and a plurality of pins (1.2); the outer edge of each carrier area (1.1) is provided with an annular groove (3); the center of each carrier area (1.1) is provided with a square groove (4); each of four sides of each square groove (4) is externally provided with a rectangular projections (5), the plurality of pins (1.2) are provided with internally-concave passages (7); the annular grooves (3) are annular dovetail grooves; the rectangular projections (5) are rectangular dovetail projections. The lead frame plate component is high in operational reliability.
Description
Technical field
The utility model relates to semiconductor lead frame manufacturing technology field, is specifically a kind of lead frame version part.
Background technology
Lead frame version part 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.
The lead frame version part of prior art is comprised of a plurality of single-pieces and two sidebands up and down of connecting a plurality of single-pieces, and each monolithic forms by a slide glass district and several pins; The outward flange in described slide glass district is provided with an annular groove; The center in described slide glass district is provided with a square indentations, and the outside of described square indentations four edges is equipped with a rectangle projection; Several described pins are provided with an interior concave channel.The lead frame version part of said structure has the following disadvantages in actual use procedure: because the inwall of annular groove is straight up and down, therefore after encapsulation, steam very easily enters pad to corrode along inwall, thereby makes the functional reliability of prior art lead frame version part poor.
Utility model content
The technical problems to be solved in the utility model is that the lead frame version part that a kind of functional reliability is high is provided.
The technical solution of the utility model is, a kind of lead frame version part is provided, and described lead frame version part is comprised of a plurality of single-pieces and two sidebands up and down of connecting a plurality of single-pieces, and each monolithic forms by a slide glass district and several pins; The outward flange in described slide glass district is provided with an annular groove; The center in described slide glass district is provided with a square indentations, and the outside of described square indentations four edges is equipped with a rectangle projection; Several described pins are provided with an interior concave channel; Described annular groove is annular dovetail slot; Described rectangle projection is rectangle dovetails.
On two described sidebands, be also provided with a plurality of swallow-tail form stopper slots.
The cross section of described interior concave channel is dovetail shaped.
Adopt after above structure, the utility model compared with prior art, has the following advantages:
The annular groove of the utility model lead frame version part is annular dovetail slot; Described rectangle projection is rectangle dovetails.Because four inwalls of annular dovetail slot are inclined-planes, therefore after encapsulation, steam is extremely difficult for entering pad to corrode along inwall, thereby makes the functional reliability of prior art lead frame version part higher.Rectangle projection is rectangle dovetails, has reduced the cost of the utility model lead frame version part.
As improvement, on two described sidebands, be also provided with a plurality of swallow-tail form stopper slots.By this structure, can make the utility model lead frame version part spacing more accurate, thereby be conducive to the working (machining) efficiency of lead frame version part.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model lead frame version part.
Fig. 2 is the A-A cutaway view in Fig. 1.
Shown in figure 1, single-piece, 1.1, slide glass district, 1.2, pin, 2, sideband, 3, annular groove, 4, square indentations, 5, rectangle projection, 6, swallow-tail form stopper slot, 7, interior concave channel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of lead frame version of the utility model part, described lead frame version part is comprised of a plurality of single-pieces 1 and two sidebands 2 up and down of connecting a plurality of single-pieces, and each monolithic 1 forms by a slide glass district 1.1 and several pins 1.2; The outward flange in described slide glass district 1.1 is provided with an annular groove 3; Described 1.1 center, slide glass district is provided with a square indentations 4, and the outside of described square indentations 4 four edges is equipped with a rectangle projection 5; ; Several described pins 1.2 are provided with an interior concave channel 7; Described annular groove 3 is annular dovetail slot, and the cross section of annular groove 3 is swallowtail shape, and namely annular groove 3 has the inwall of inclination; Described rectangle projection 5 is rectangle dovetails, and the cross section of rectangle projection 5 is swallowtail shape, and namely square rectangle projection 5 has the outer wall of inclination.
On two described sidebands 2, be also provided with a plurality of swallow-tail form stopper slots 6.The cross section of described interior concave channel 7 is dovetail shaped.
Below only with regard to most preferred embodiment of the present utility model, be described, but can not be interpreted as it is limitations on claims.The utility model is not limited only to above embodiment, and its concrete structure allows to change.In every case the various variations of doing in the protection range of the utility model independent claims are all in protection range of the present utility model.
Claims (3)
1. a lead frame version part, described lead frame version part is comprised of a plurality of single-pieces (1) and two sidebands (2) up and down of connecting a plurality of single-pieces, and each monolithic (1) forms by a slide glass district (1.1) and several pins (1.2); The outward flange in described slide glass district (1.1) is provided with an annular groove (3); The center in described slide glass district (1.1) is provided with a square indentations (4), and the outside of described square indentations (4) four edges is equipped with a rectangle projection (5); Described several pins (1.2) are provided with an interior concave channel (7); It is characterized in that: described annular groove (3) is annular dovetail slot; Described rectangle projection (5) is rectangle dovetails.
2. lead frame version part according to claim 1, is characterized in that: on described two sidebands (2), be also provided with a plurality of swallow-tail form stopper slots (6).
3. lead frame version part according to claim 1, is characterized in that: the cross section of described interior concave channel (7) is dovetail shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182694.0U CN203760461U (en) | 2014-04-15 | 2014-04-15 | Lead frame plate component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182694.0U CN203760461U (en) | 2014-04-15 | 2014-04-15 | Lead frame plate component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760461U true CN203760461U (en) | 2014-08-06 |
Family
ID=51255704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420182694.0U Expired - Lifetime CN203760461U (en) | 2014-04-15 | 2014-04-15 | Lead frame plate component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760461U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807326A (en) * | 2018-05-02 | 2018-11-13 | 泰州友润电子科技股份有限公司 | A kind of improved overloading type 3PF lead frames |
| CN108807327A (en) * | 2018-05-02 | 2018-11-13 | 泰州友润电子科技股份有限公司 | A kind of full closed insulated lead frame with free switching function |
| CN108807328A (en) * | 2018-05-02 | 2018-11-13 | 泰州友润电子科技股份有限公司 | A kind of overloading type 220D8 lead frames convenient for plastic packaging demoulding |
| CN113169074A (en) * | 2018-09-11 | 2021-07-23 | Rjr技术公司 | Air cavity package with improved connection between components |
-
2014
- 2014-04-15 CN CN201420182694.0U patent/CN203760461U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807326A (en) * | 2018-05-02 | 2018-11-13 | 泰州友润电子科技股份有限公司 | A kind of improved overloading type 3PF lead frames |
| CN108807327A (en) * | 2018-05-02 | 2018-11-13 | 泰州友润电子科技股份有限公司 | A kind of full closed insulated lead frame with free switching function |
| CN108807328A (en) * | 2018-05-02 | 2018-11-13 | 泰州友润电子科技股份有限公司 | A kind of overloading type 220D8 lead frames convenient for plastic packaging demoulding |
| CN113169074A (en) * | 2018-09-11 | 2021-07-23 | Rjr技术公司 | Air cavity package with improved connection between components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |