CN201788965U - Stacking structure for material strip of lead frame - Google Patents
Stacking structure for material strip of lead frame Download PDFInfo
- Publication number
- CN201788965U CN201788965U CN 201020277198 CN201020277198U CN201788965U CN 201788965 U CN201788965 U CN 201788965U CN 201020277198 CN201020277198 CN 201020277198 CN 201020277198 U CN201020277198 U CN 201020277198U CN 201788965 U CN201788965 U CN 201788965U
- Authority
- CN
- China
- Prior art keywords
- metal material
- lead frame
- material belt
- material strip
- strip
- 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
- 239000000463 material Substances 0.000 title abstract 5
- 239000007769 metal material Substances 0.000 claims abstract description 68
- 238000010276 construction Methods 0.000 claims description 24
- 238000001746 injection moulding Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Cell Electrode Carriers And Collectors (AREA)
Abstract
The utility model discloses a stacking structure for a material strip of a lead frame, which comprises a first metal material strip, a second metal material strip and a plurality of supporting parts, wherein the first metal material strip is provided with a plurality of first lead frames; the second metal material strip is arranged under the first metal material strip and provided with a plurality of second lead frames; and the supporting parts arranged between the first metal material strip and the second material strip are used for separating the first metal material strip from the second material strip, so that a space is formed among the first lead frames on the first metal material strip and the second lead frames of the first metal material strip, thereby avoiding friction or collision between the first lead frames and the second lead frames. Accordingly, the stacking structure for a material strip of a lead frame is low in cost and good in stacking effect.
Description
Technical field
This novel strip stacking construction that relates to lead frame is meant a kind of preferred stack effect that has especially, and can reduces production costs, and also can respond the strip stacking construction of the lead frame of environmental protection.
Background technology
As shown in Figures 1 and 2, be the strip of the existing lead frame schematic diagram when piling up.As shown in the figure, this existing strip A is formed with a plurality of lead frame B on it, and those strips A mainly is that a plurality of strip A are stacked each other on together with the upper and lower formula when packing.
Owing to the lead frame B on those strips A, protrude from the upper and lower end face of strip A, therefore, when those strips A when piling up, for avoiding causing collision or the friction between lead frame B,, dustlessly each strip A is carried out the interval every paper C to see through this so can between each strip A, have additional one dustlessly every paper C.
Only, so mode not only can increase cost, and when those strips A delivers to encapsulation during factory, because those dustless effects every paper C there is no other effect only at those strips A at interval, therefore, encapsulation factory is when operation, and labor intensive is dustlessly taken off each every paper C again, so not only improved manufacturing cost, simultaneously, this is dustless to take off the back every paper C and pollutes for avoiding, thus those dustless every paper C can't secondary use, so not only improve and increase manufacturing cost, and quite not environmental protection.
So above-mentioned or the like problem is the technological means that the utility model institute desire solves, so the utility model mainly addresses the above problem, and it is dustless every paper that it need not be set up between each strip again, to reduce manufacturing cost, more can respond environmental protection.
The utility model content
Main purpose of the present utility model is to provide a kind of preferred stack effect that has, and can reduces production costs, and also can respond the strip stacking construction of the lead frame of environmental protection.
For reaching above-mentioned purpose, technical characterictic of the present utility model is to include one first metal material belt, one second metal material belt and a plurality of strutting piece.Wherein, have a plurality of first lead frames on first metal material belt; Second metal material belt is located at this first metal material belt below, has a plurality of second lead frames on it; And a plurality of strutting pieces are located between this first metal material belt and this second metal material belt, in order at interval this first metal material belt and this second metal material belt, make between second lead frame of first lead frame of this first metal material belt and this metal material belt to be formed with a spacing.
The strip stacking construction of described lead frame, wherein, these strutting piece systems are formed by the extension downwards of this first metal material belt.
The strip stacking construction of described lead frame, wherein, these strutting pieces have one second lower surface, and this first lead frame has first lower surface, and second lower surface of this strutting piece is lower than first lower surface of this first lead frame.
The strip stacking construction of described lead frame, wherein, these strutting pieces are formed at the below of this first metal material belt with injection molding method.
The strip stacking construction of described lead frame, wherein, these strutting pieces are formed at the below of this first metal material belt with impact style.
The strip stacking construction of described lead frame, wherein, these strutting pieces are extended upward by second metal material belt and form.
The strip stacking construction of described lead frame, wherein, these strutting pieces have one second upper surface, and second lead frame has one first upper surface, and second upper surface of these strutting pieces is higher than first upper surface of this second lead frame.
The strip stacking construction of described lead frame, wherein, these strutting pieces are formed at the top of this second metal material belt with injection molding method.
The strip stacking construction of described lead frame, wherein, these strutting pieces are formed at the top of this second metal material belt with impact style.
The beneficial effects of the utility model are, the strip stacking construction of the lead frame that provided is provided, utilize this strutting piece to make between this first lead frame and this second lead frame and be formed with a spacing, and then avoid producing friction between first lead frame and second lead frame or colliding, so that a kind of lower cost that has to be provided, and has the strip stacking construction of the lead frame that well piles up effect again.
Above-mentioned and other purpose, advantage and characteristic of the present utility model are by the detailed bright of following preferred embodiment and with reference to graphic in order to do more being understood in depth.
Description of drawings
Fig. 1 is the schematic perspective view of a prior art;
Fig. 2 is the floor map of Fig. 1;
Fig. 3 is the schematic perspective view of the utility model first embodiment;
Fig. 4 is the local enlarged diagram of Fig. 3;
Floor map when Fig. 5 piles up for the utility model first embodiment;
Floor map when Fig. 6 piles up for the utility model second embodiment;
Fig. 7 is the schematic perspective view of the utility model the 3rd embodiment;
Fig. 8 is the generalized section of the utility model the 3rd embodiment.
[main element symbol description]
Existing component symbol
The A strip
The B lead frame
C is dustless every paper
The utility model component symbol
10 first metal material belts
11 first lead frames
12 first lower surfaces
20 second metal material belts
21 second lead frames
22 first upper surfaces
30 strutting pieces
31 second upper surfaces
32 second lower surfaces
Embodiment
As shown in Figures 3 and 4, be schematic perspective view and the local enlarged diagram of the utility model first embodiment, it includes first metal material belt 10, second metal material belt 20 and a plurality of strutting piece 30.Wherein:
Form a plurality of first lead frames 11 on first metal material belt 10.
Second metal material belt 20 is located at first metal material belt, 10 belows, and one forms a plurality of second lead frame, 21, the second lead frames 21 and have one first upper surface 22 on second metal material belt 20.
A plurality of strutting pieces 30 are located at second metal material belt, 20 tops, and with respect to the below of first metal material belt 10, those strutting pieces 30 have one second upper surface 31, and second upper surface 31 of those strutting pieces 30 is a little more than first upper surface 22 of second lead frame 21.At present embodiment, those strutting pieces 30 take shape in the top of second metal material belt 20 with injection molding method.
See also shown in Figure 5, the floor map when piling up for the utility model first embodiment.When first metal material belt 10 and second metal material belt 20 pile up, mainly first metal material belt 10 is stacked on second metal material belt 20, at this moment, because second upper surface 31 of those strutting pieces 30 is a little more than first upper surface 22 of second lead frame 21.Therefore, second upper surface 31 of those strutting pieces 30 will be held in the below of first metal material belt 10, to see through those strutting pieces 30 with first metal material belt 10 and second metal material belt 20 interval in addition, make first lead frame 11 and 21 of second lead frames be produced a spacing simultaneously, to avoid causing the collision or the friction of 21 of first lead frame 11 and second lead frames.
See also shown in Figure 6, the floor map when piling up for the utility model second embodiment.At present embodiment, those strutting pieces 30 are located at the below of this first metal material belt 10, those strutting pieces 30 have one second lower surface 32, first lead frame 11 of first metal material belt 10 then has one first lower surface 12, second lower surface 32 of its strutting piece 30 is a little less than first lower surface 12 of 11 in first lead, make second lower surface 32 of its bracing frame 30 be held in second metal material belt, 20 tops, and make first lead frame 11 and 21 of second lead frames produce a spacing.
See also Fig. 7 and shown in Figure 8 again, be the part enlarged diagram of the utility model the 3rd embodiment.In the present embodiment, those strutting pieces 30 are with impact style, directly impact style is formed with strutting piece 30 on first metal material belt 10 and second metal material belt 20, and those strutting pieces 20 form (also the extension of punching press downwards forms in operation) by the extension of punching press downwards on first metal material belt 10 and second metal material belt 20.So that first metal material belt 10 and second metal material belt 20 are able to separate mutually by those strutting pieces 30, and make 21 of first lead frame 11 and second lead frames produce a spacing, thereby avoid causing the collision or the friction of 21 of first lead frame 11 and second lead frames.
In this way, the utility model mainly in the strip of lead frame in manufacture process, to utilize ejection formation or punch forming mode simultaneously, directly on strip, form strutting piece, so that each strip is separated mutually, make between the lead frame on each strip to be formed with spacing, so not only can simplify the production procedure of lead frame, can reduce production costs simultaneously, a kind of strip stacking construction with preferred stack effect can be provided again.
The specific embodiment that in the detailed description of preferred embodiment, is proposed, only in order to be easy to illustrate technology contents of the present utility model, be not with the utility model narrow sense be limited among the embodiment, all following of situations according to spirit of the present utility model and following claim are made many variations and are implemented, and all belong to scope of the present utility model.
Claims (9)
1. the strip stacking construction of a lead frame is characterized in that including:
First metal material belt has a plurality of first lead frames on it;
Second metal material belt is located at this first metal material belt below, has a plurality of second lead frames on it; And
A plurality of strutting pieces are located between this first metal material belt and this second metal material belt, in order at interval this first metal material belt and this second metal material belt, make between second lead frame of first lead frame of this first metal material belt and this metal material belt to be formed with a spacing.
2. the strip stacking construction of lead frame as claimed in claim 1 is characterized in that, these strutting piece systems are formed by the extension downwards of this first metal material belt.
3. the strip stacking construction of lead frame as claimed in claim 2 is characterized in that, these strutting pieces have one second lower surface, and this first lead frame has first lower surface, and second lower surface of this strutting piece is lower than first lower surface of this first lead frame.
4. the strip stacking construction of lead frame as claimed in claim 2 is characterized in that, these strutting pieces are formed at the below of this first metal material belt with injection molding method.
5. the strip stacking construction of lead frame as claimed in claim 2 is characterized in that, these strutting pieces are formed at the below of this first metal material belt with impact style.
6. the strip stacking construction of lead frame as claimed in claim 1 is characterized in that, these strutting pieces are extended upward by second metal material belt and form.
7. the strip stacking construction of lead frame as claimed in claim 6, it is characterized in that, these strutting pieces have one second upper surface, and second lead frame has one first upper surface, and second upper surface of these strutting pieces is higher than first upper surface of this second lead frame.
8. the strip stacking construction of lead frame as claimed in claim 6 is characterized in that, these strutting pieces are formed at the top of this second metal material belt with injection molding method.
9. the strip stacking construction of lead frame as claimed in claim 6 is characterized in that, these strutting pieces are formed at the top of this second metal material belt with impact style.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020277198 CN201788965U (en) | 2010-07-29 | 2010-07-29 | Stacking structure for material strip of lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020277198 CN201788965U (en) | 2010-07-29 | 2010-07-29 | Stacking structure for material strip of lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788965U true CN201788965U (en) | 2011-04-06 |
Family
ID=43820921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020277198 Expired - Fee Related CN201788965U (en) | 2010-07-29 | 2010-07-29 | Stacking structure for material strip of lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952737A (en) * | 2015-06-30 | 2015-09-30 | 南通富士通微电子股份有限公司 | Packaging frame structures with aluminum strips, L-shaped legs or bulges as well as production methods |
| CN107919290A (en) * | 2017-10-23 | 2018-04-17 | 杰群电子科技（东莞）有限公司 | A double lead frame fixing method |
-
2010
- 2010-07-29 CN CN 201020277198 patent/CN201788965U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952737A (en) * | 2015-06-30 | 2015-09-30 | 南通富士通微电子股份有限公司 | Packaging frame structures with aluminum strips, L-shaped legs or bulges as well as production methods |
| CN104952737B (en) * | 2015-06-30 | 2017-12-26 | 通富微电子股份有限公司 | A kind of package frame structure and production method with aluminium strip or L pin or projection |
| CN107919290A (en) * | 2017-10-23 | 2018-04-17 | 杰群电子科技（东莞）有限公司 | A double lead frame fixing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20110729 |