CN207250503U - A kind of lead frame that can improve stock utilization - Google Patents
A kind of lead frame that can improve stock utilization Download PDFInfo
- Publication number
- CN207250503U CN207250503U CN201721265897.6U CN201721265897U CN207250503U CN 207250503 U CN207250503 U CN 207250503U CN 201721265897 U CN201721265897 U CN 201721265897U CN 207250503 U CN207250503 U CN 207250503U
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- bottom sheet
- upper piece
- cell body
- frame
- piece
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Abstract
A kind of lead frame that can improve stock utilization of the utility model,By upper piece and bottom sheet it is smooth fastening form,Upper piece and bottom sheet formed by upper side frame and lower frame and frame unit,Frame unit is in matrix arrangement between upper side frame and lower frame,The distance between upper piece vertical center line of adjacent two rows of frame units is 14 ± 0.025mm,The distance between vertical center line of adjacent two rows of frame units of bottom sheet is 14 ± 0.025mm,It is 5.6 ± 0.025mm often to arrange the distance between horizontal center line of longitudinally adjacent two frame units,Upper piece frame unit includes upper piece company's muscle and the upper piece left cell body being arranged at left and right sides of company's muscle and upper piece right cell body,Bottom sheet frame unit includes bottom sheet and connects muscle and be arranged on bottom sheet to connect the left cell body of bottom sheet and the right cell body of bottom sheet at left and right sides of muscle,Upper piece right cell body coordinates with the right cell body of bottom sheet,Upper piece left cell body coordinates with the left cell body of the bottom sheet.Beneficial effect saves material, reduces production cost.
Description
Technical field
Technical field of semiconductor chip encapsulation is the utility model is related to, it is more particularly to a kind of to improve drawing for stock utilization
Wire frame.
Background technology
Chip carrier of the lead frame as integrated circuit, is that one kind realizes that chip internal circuits draw by means of bonding material
The electrical connection of outlet and outer lead, forms the key structure part of electric loop, it plays the bridge connected with outer lead
Act on, be required for using lead frame in most semiconductor integrated blocks, be basic material important in electronics and information industry
Material.
Existing MD products are existing conventional foot bridge class product, the huge market demand, but the material use of available frame
Rate is low, production efficiency is also more low, and added value of product is comparatively also just smaller.Cost-effective, it is every to improve production efficiency
A production enterprise road to be developed, so under current environment, breaks through existing technology, research is a to improve material
Expect the novel lead frame of utilization rate with regard to imperative.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of lead frame that can improve stock utilization.
Technical solution is as follows
A kind of lead frame that can improve stock utilization, by upper piece and bottom sheet it is smooth fastening form, it is described upper piece and under
Piece is vertical by upper side frame and lower frame and with upper side frame and lower frame and multiple frame units of integrated connection form, described
Frame unit is in matrix arrangement between the upper side frame and the lower frame, it is characterised in that it is described upper piece adjacent two
It is 14 ± 0.025mm to arrange the distance between vertical center line of frame unit, and adjacent two rows of frame units of the bottom sheet hang down
The distance between straight center line is 14 ± 0.025mm, between the horizontal center line for often arranging longitudinally adjacent two frame units
Distance be 5.6 ± 0.025mm, and the frame unit is upper piece frame unit and bottom sheet frame unit, upper piece frame unit
Including upper piece company's muscle and the upper piece left cell body being arranged at left and right sides of upper piece company's muscle and upper piece right cell body, and it is described
The position that the position of upper piece left cell body is set lower than upper piece right cell body is set, and the bottom sheet frame unit includes
Bottom sheet, which connects muscle and is arranged on bottom sheet, connects the left cell body of bottom sheet and the right cell body of bottom sheet at left and right sides of muscle, and the bottom sheet
The position that the position of left cell body is set lower than the right cell body of the bottom sheet is set, upper piece right cell body with it is described
The right cell body of bottom sheet coordinates, and the upper piece left cell body coordinates with the left cell body of the bottom sheet.
As a further improvement, the upper piece left cell body further includes the upper piece left side being connected with upper piece company's muscle and draws
Foot, the upper piece left side pin connect a left side Ji Dao, and the upper piece right cell body further includes what is be connected with upper piece company's muscle
Upper piece right side pin, the upper piece right side pin connect piece a right side Ji Dao, upper piece left side Ji Dao and upper piece right side Ji Dao
On be equipped with chip base island protrusion, the left cell body of bottom sheet is further included connects the bottom sheet left side pin that muscle be connected, institute with bottom sheet
Pin connection bottom sheet left side Ji Dao on the left of bottom sheet is stated, the right cell body of bottom sheet further includes the bottom sheet right side for connecting muscle with bottom sheet and being connected
Side pin, bottom sheet right side pin connects to be all provided with a right side Ji Dao, the bottom sheet left side Ji Dao and bottom sheet right side Ji Dao
There is lower chip base island protrusion.
As a further improvement, it is described upper piece when being fastened with the bottom sheet, the upper chip base island protrusion is inverted in described
The top of lower chip base island protrusion, and between spacing distance be equal to frame unit material thickness.
As a further improvement, between upper piece left side pin and upper piece left side base island, upper piece right side
A bending part is equipped between pin and upper piece right side base island.
As a further improvement, on the left of the bottom sheet between pin and bottom sheet left side base island, on the right side of the bottom sheet
On the right side of pin and the bottom sheet bottom sheet bending part is equipped between base island.
Beneficial effect
The utility model product is the minimum dimension that can allow, and has maximumlly saved copper strips resource, by the frame of MD
Every quantity adds 2.5 times, substantially increases the production efficiency of MD products, reduces production cost.
Brief description of the drawings
Below in conjunction with the accompanying drawings the utility model is further illustrated with case study on implementation.
Fig. 1 be the utility model upper piece with bottom sheet fasten part-structure schematic diagram
Fig. 2 is upper piece frame unit structure diagram of the utility model；
Fig. 3 is the side view of upper piece frame unit of the utility model；
Fig. 4 is the bottom sheet frame unit structure diagram of the utility model；
Fig. 5 is the side view of the bottom sheet frame unit of the utility model；
Fig. 6 is the side view that the upper piece frame unit of the utility model is fastened with bottom sheet frame unit.
Embodiment
The effect of to make to the architectural feature of the utility model and being reached, has a better understanding and awareness, to compared with
Good embodiment and attached drawing coordinate detailed description, are described as follows：
As shown in figures 1 to 6, a kind of lead frame that can improve stock utilization, by upper piece and bottom sheet it is smooth fastening form,
Upper piece and bottom sheet it is vertical by upper side frame 1 and lower frame 2 and with upper side frame and lower frame and be connected multiple frame lists
Member composition, frame unit be in matrix arrangement between upper side frame and lower frame, upper piece it is adjacent two rows frame units it is vertical
The distance between center line h is the distance between 14 ± 0.025mm, the vertical center line of adjacent two rows of frame units of bottom sheet h1
For 14 ± 0.025mm, often arrange the distance between the horizontal center line of longitudinally adjacent two frame units a for 5.6 ±
0.025mm, the frame unit are upper piece frame unit 3 and bottom sheet frame unit 4, and upper piece frame unit 3 includes upper piece company's muscle
31 and upper piece left cell body 32 for being arranged at left and right sides of company's muscle and upper piece right cell body 33, and upper piece left unit
The position that the position of body 32 is set lower than a right cell body 33 is set, and bottom sheet frame unit 4 connects 41 He of muscle including bottom sheet
It is arranged on bottom sheet and connects the left cell body 42 of bottom sheet and the right cell body 43 of bottom sheet at left and right sides of muscle, and the left cell body of bottom sheet
The position that 42 position is set lower than the right cell body 43 of bottom sheet is set, upper piece right cell body 33 and the right cell body 43 of bottom sheet
Coordinate, the upper piece left cell body 42 left with bottom sheet of cell body 32 coordinates.Between the vertical center line of adjacent two rows frame unit
Distance data and often to arrange the distance between horizontal center line of longitudinally adjacent two frame units be to combine the present inventor
Road bending actuarial afterwards, has been the minimum dimension that this product can allow, has maximumlly saved copper strips resource, upper piece
The cell body of cell body and bottom sheet staggeredly coordinates, and reduces the thickness of product, substantially increases the production efficiency of product, drop
Low production cost.
Upper piece left cell body 32 further include be connected with upper piece company's muscle 31 upper piece left side pin 321, upper piece left side pin
321 connection upper piece left sides base island 322, upper piece right cell body 33 further include be connected with upper piece company's muscle 31 upper piece on the right side of pin
331, upper piece right side pin 331 connects piece a right side base island 332, is all provided with upper piece left side base island 322 and upper piece right side base island 332
There is upper chip base island protrusion 5, the left cell body 42 of bottom sheet further includes the bottom sheet left side pin 421 for connecting muscle 41 with bottom sheet and being connected, bottom sheet
Left side pin 421 connects base island 422 on the left of bottom sheet, and the right cell body 43 of bottom sheet further includes the bottom sheet right side for connecting muscle 41 with bottom sheet and being connected
Side pin 431, bottom sheet right side pin 431 connect a right side base island 432, bottom sheet left side base island 422 and bottom sheet right side base island 432
On be equipped with lower chip base island protrusion 6.Upper piece when being fastened with bottom sheet, upper piece when being fastened with the bottom sheet, upper chip base island protrusion 5 is inverted
In the top of lower chip base island protrusion 6, and between spacing distance be equal to frame unit material thickness.It ensure that piece and bottom sheet
Tight fit during fastening, saves material.
In order to save material, between upper piece left side pin 321 and upper piece left side base island 322, upper piece right side pin 331 and institute
State piece and to be equipped with a bending part 7 between right side base island 332.Between bottom sheet left side pin 421 and bottom sheet left side base island 422,
On the right side of bottom sheet bottom sheet bending part 8 is equipped between pin 431 and bottom sheet right side base island 432.
In conclusion the only preferred embodiment of the utility model, is not used for limiting the utility model implementation
Scope, the equivalent change carried out by all shapes according to described in the utility model claims scope, construction, feature and spirit is with repairing
Decorations, should all be included in the right of the utility model.
Claims (5)
1. a kind of lead frame that can improve stock utilization, by upper piece and the smooth fastening of bottom sheet form, it is described upper piece and bottom sheet
By upper side frame and lower frame and multiple frame units that are vertical with upper side frame and lower frame and being connected form, the frame
Frame unit is in matrix arrangement between the upper side frame and the lower frame, it is characterised in that upper piece the adjacent two rows
The distance between vertical center line of frame unit is 14 ± 0.025mm, adjacent two rows of frame units of the bottom sheet it is vertical
The distance between center line is 14 ± 0.025mm, often arrange between the horizontal center line of longitudinally adjacent two frame units away from
From for 5.6 ± 0.025mm, the frame unit is upper piece frame unit and bottom sheet frame unit, upper piece frame unit bag
Include company's muscle and the upper piece left cell body being arranged at left and right sides of company's muscle and upper piece right cell body, and it is described on
The position that the position of the left cell body of piece is set lower than upper piece right cell body is set, under the bottom sheet frame unit includes
Piece, which connects muscle and is arranged on bottom sheet, connects the left cell body of bottom sheet and the right cell body of bottom sheet at left and right sides of muscle, and the bottom sheet is left
The position that the position of cell body is set lower than the right cell body of the bottom sheet is set, upper piece right cell body with it is described under
The right cell body of piece coordinates, and the upper piece left cell body coordinates with the left cell body of the bottom sheet.
A kind of 2. lead frame that can improve stock utilization according to claim 1, it is characterised in that upper piece left side
Cell body further includes the upper piece left side pin being connected with upper piece company's muscle, and the upper piece left side pin connects piece a left side Ji Dao,
The upper piece right cell body further includes the upper piece right side pin being connected with upper piece company's muscle, and the upper piece right side pin connects piece
Right side Ji Dao, it is described upper piece left side Ji Dao and upper piece right side Ji Dao on be equipped with chip base island protrusion, the left unit sheet of bottom sheet
Body further includes the bottom sheet left side pin for connecting muscle with bottom sheet and being connected, and pin connects Ji Dao on the left of bottom sheet on the left of the bottom sheet, under described
The right cell body of piece further includes the bottom sheet right side pin for connecting muscle with bottom sheet and being connected, and pin connects a right side base on the right side of the bottom sheet
Lower chip base island to be equipped with Ji Dao raised on the right side of island, the bottom sheet left side Ji Dao and bottom sheet.
A kind of 3. lead frame that can improve stock utilization according to claim 2, it is characterised in that it is described upper piece with
When the bottom sheet fastens, the upper chip base island protrusion is inverted in the top of the lower chip base island protrusion, and between spacing distance
Equal to the material thickness of frame unit.
A kind of 4. lead frame that can improve stock utilization according to claim 2, it is characterised in that upper piece left side
It is equipped between side pin and upper piece left side base island, between upper piece right side pin and upper piece right side base island piece
Bending part.
5. a kind of lead frame that can improve stock utilization according to claim 2, it is characterised in that the bottom sheet is left
On the left of side pin and the bottom sheet bottom sheet is equipped between pin and bottom sheet right side base island between base island, on the right side of the bottom sheet
Bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265897.6U CN207250503U (en) | 2017-09-28 | 2017-09-28 | A kind of lead frame that can improve stock utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265897.6U CN207250503U (en) | 2017-09-28 | 2017-09-28 | A kind of lead frame that can improve stock utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250503U true CN207250503U (en) | 2018-04-17 |
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ID=61889404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721265897.6U Active CN207250503U (en) | 2017-09-28 | 2017-09-28 | A kind of lead frame that can improve stock utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108745799A (en) * | 2018-04-20 | 2018-11-06 | 四川旭茂微科技有限公司 | A kind of matrix form lead frame and its application method |
-
2017
- 2017-09-28 CN CN201721265897.6U patent/CN207250503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108745799A (en) * | 2018-04-20 | 2018-11-06 | 四川旭茂微科技有限公司 | A kind of matrix form lead frame and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190605 Address after: 276100 High-tech Electronic Industry Park Area A, Tancheng County, Linyi City, Shandong Province Patentee after: Shandong Junyu Electronic Technology Co., Ltd. Address before: Room 499, Building 4, 456 Liangxin Road, Laogang Town, Pudong New Area, Shanghai, 2010 Patentee before: Shanghai Jun Yu Electronic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |