CN210668357U - PDFN5X 612 row matrix type lead frame structure - Google Patents
PDFN5X 612 row matrix type lead frame structure Download PDFInfo
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- CN210668357U CN210668357U CN201922287868.5U CN201922287868U CN210668357U CN 210668357 U CN210668357 U CN 210668357U CN 201922287868 U CN201922287868 U CN 201922287868U CN 210668357 U CN210668357 U CN 210668357U
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Abstract
The utility model relates to a lead frame structure, in particular to a PDFN5X 612 row matrix lead frame structure, which comprises 480 sub-unit rectangular frames with the same structure connected inside, 480 sub-units are in 12 rows and 40 rows matrix distribution structure, each sub-unit comprises a metal base island and pins, the metal base island of the sub-unit of the 1 st row is connected with an upper frame, the pins of the sub-unit of the 12 th row are connected with a lower frame, the sub-units of the adjacent rows are connected through transverse connecting ribs, the left side of the sub-unit of the 1 st row is connected with a left frame, the right side of the sub-unit of the 40 th row is connected with a right frame, the sub-units of the adjacent rows are connected through longitudinal connecting ribs, each two rows of sub-units form a row unit, each two rows of sub-units form a block unit, by increasing the arrangement density of the small units of the product, the production efficiency is effectively improved, and the labor cost and the total production cost are saved.
Description
Technical Field
The utility model relates to a lead frame structure especially relates to a PDFN5X 612 line matrix lead frame structure.
Background
The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between a leading-out end of an internal circuit of a chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electrical circuit, plays a role of a bridge connected with an external lead, needs to be used in most semiconductor integrated blocks and is an important basic material in the electronic information industry.
The conventional PDFN5X6 lead frame structure is designed in 8 rows, has the length of 238 mm and the width of 70 mm, can package 256 products at most by one piece, and has high production cost, low production efficiency and no competitive advantage in the market under the existing market competition conditions.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model provides a high arrangement density PDFN5X 612 line matrix lead frame structure that manufacturing cost is lower, production efficiency is higher
In order to realize the technical purpose, the technical proposal of the utility model is that:
a PDFN5X 612 row matrix type lead frame structure comprises a rectangular frame, wherein 480 subunits with the same structure are connected in the rectangular frame, the 480 subunits are in a 12-row 40-column matrix type distribution structure, each subunit comprises a metal base island and pins, and the metal base islands and the pins are in an up-down distribution structure;
the metal base islands of the subunits in the 1 st row are connected with the upper frame of the rectangular frame, the pins of the subunits in the 12 th row are connected with the lower frame of the rectangular frame, the subunits in the adjacent rows are connected in the horizontal direction through transverse connecting ribs, the left end of each transverse connecting rib is connected with the left frame of the rectangular frame, and the right end of each transverse connecting rib is connected with the right frame of the rectangular frame;
the left side that is located the subunit of 1 st row is connected with the frame on the left side of rectangle frame, the right side that is located the subunit of 40 th row is connected with the frame on the right of rectangle frame, connect through vertical even muscle in vertical direction between the subunit of adjacent row, every two subunits constitute a row of unit, vertical even muscle between the adjacent row of unit goes up and is equipped with the long circle through-hole along vertical direction equidistant, every two is listed as a unit and constitutes a piece unit, vertical even muscle between the adjacent piece unit goes up and is equipped with 4 rectangle partition grooves along vertical direction equidistant, every top that vertically links the muscle is connected with the last frame of rectangle frame, the middle part is connected with the horizontal even muscle that passes through, the bottom is connected with the lower frame of rectangle frame.
Preferably, the width of the longitudinal tie bar between adjacent column units is larger than that of the longitudinal tie bar between two subunits in the column units.
Preferably, the width of the longitudinal tie bar between the adjacent block units is equal to the width of the longitudinal tie bar between the adjacent column units.
Preferably, the upper frame and the lower frame of the rectangular frame are provided with circular positioning holes at equal intervals along the horizontal direction.
Preferably, the distance between adjacent circular positioning holes is equal to half of the distance between adjacent rows of rectangular partition grooves.
Preferably, the number of the metal base islands is 1 or 2.
Preferably, when the number of the metal base islands is 1, the left side of the metal base island is connected to the rectangular frame or the longitudinal connecting rib on the left side through 1 small connecting rib, the right side of the metal base island is connected to the rectangular frame or the longitudinal connecting rib on the right side through 1 small connecting rib, and the upper side of the metal base island is connected to the rectangular frame or the transverse connecting rib on the upper side through 4 small connecting ribs.
Preferably, the number of the pins is 4, wherein 1 keying platform is arranged on the left 3 pins together, and 1 keying platform is arranged on the right 1 pins independently.
Preferably, the rectangular frame has a length of 300 mm and a width of 100 mm.
As can be seen from the above description, the present invention has the following advantages:
the utility model discloses compact structure through the range density that increases the little unit of product, has effectively improved production efficiency to effectively practiced thrift cost of labor and production total cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a schematic structural diagram of a subunit of the present invention;
fig. 5 is a schematic structural diagram of the sub-unit of the present invention.
Detailed Description
With reference to fig. 1 to 5, a specific embodiment of the present invention is described in detail, but the present invention is not limited to the claims.
As shown in fig. 1 to 5, a PDFN5X 612 matrix lead frame structure includes a rectangular frame 1, 480 subunits 2 with the same structure are connected in the rectangular frame, 480 subunits 2 are in a 12-row 40-column matrix distribution structure, each subunit 2 includes a metal base island 201 and a pin 202, and the metal base island 201 and the pin 202 are in an up-down distribution structure;
the metal base islands 201 of the subunits 2 in the 1 st row are connected with the upper frame 101 of the rectangular frame 1, the pins 202 of the subunits 2 in the 102 th row are connected with the lower frame 102 of the rectangular frame 1, the subunits 2 in adjacent rows are connected in the horizontal direction through transverse connecting ribs 3, the left end of each transverse connecting rib 3 is connected with the left frame 103 of the rectangular frame 1, and the right end of each transverse connecting rib is connected with the right frame 104 of the rectangular frame 1;
the left side that is located subunit 2 of 1 st row is connected with the left frame 103 of rectangle frame 1, the right side that is located subunit 2 of 40 th row is connected with the right frame 104 of rectangle frame 1, connect through vertical even muscle 4 in the vertical direction between the subunit 2 of adjacent row, every two subunits constitute a row of unit 5, be equipped with long circular through-hole 6 along vertical direction equidistant on the vertical even muscle 4 between the adjacent row of unit, every two is listed as the unit and constitutes a piece unit 7, be equipped with 4 rectangle subregion grooves 8 along vertical direction equidistant on the vertical even muscle 4 between the adjacent piece unit 7, the top of every vertical even muscle 4 is connected with the last frame 101 of rectangle frame 1, the middle part is connected with the horizontal even muscle 3 that passes through, the bottom is connected with the lower frame 102 of rectangle frame 1.
Fig. 2 and 3 are enlarged partial views of fig. 1, and the shaded portion in fig. 3 is a hollow structure.
In the scheme, the method comprises the following steps:
(1) as shown in fig. 2, the width of the longitudinal tie bar 402 between adjacent column units 5 is greater than the width of the longitudinal tie bar 401 between two sub-units 2 in a column unit.
(2) As shown in fig. 2, the width of the longitudinal ribs 403 between adjacent block units is equal to the width of the longitudinal ribs 402 between adjacent column units.
(3) The upper frame 101 and the lower frame 102 of the rectangular frame 1 are provided with circular positioning holes 9 at equal intervals along the horizontal direction, and the distance between adjacent circular positioning holes 9 is equal to half of the distance between adjacent rows of rectangular partition grooves 8.
(4) The number of the metal base islands 201 in the sub-unit 2 can be 1 or 2, when the number is 1, the left side of the metal base island 201 is connected to the rectangular frame 1 or the longitudinal connecting rib 4 on the left side through 1 small connecting rib 10, the right side is connected to the rectangular frame 1 or the longitudinal connecting rib 4 on the right side through 1 small connecting rib 10, and the upper side is connected to the rectangular frame 1 or the transverse connecting rib 3 on the upper side through 4 small connecting ribs 10.
(5) The number of the pins 202 in the subunit 2 is 4, wherein 3 pins on the left side are provided with 1 keying platform 11 together, and 1 pin on the right side is provided with 1 keying platform 11 alone.
The utility model discloses during the implementation, the length of rectangle frame sets up to 300 millimeters, and the width is 100 millimeters, and this is because this size is the same with current SOT-23 product size, and two kinds of products can share some equipment to practice thrift equipment development cost.
The utility model discloses compact structure compares with current design, and the subunit arrangement density of product is showing and is improving to can improve the production efficiency of product, and then practice thrift cost of labor and total production cost.
Will the utility model discloses after enterprise's production implementation, compare with original eight rows of designs, frame arrangement density has promoted 87.5%, and plastic envelope process unit productivity per hour has promoted 70%, has effectively promoted production efficiency, has practiced thrift cost of labor and total production cost.
To sum up, the utility model has the advantages of it is following:
the utility model discloses compact structure through the range density that increases the little unit of product, has effectively improved production efficiency to effectively practiced thrift cost of labor and production total cost.
It should be understood that the above detailed description of the present invention is only for illustrative purposes and is not limited to the technical solutions described in the embodiments of the present invention. It will be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (9)
1. A PDFN5X 612 matrix lead frame structure is characterized in that: the packaging structure comprises a rectangular frame, wherein 480 subunits with the same structure are connected in the rectangular frame, the 480 subunits are in a 12-row 40-column matrix distribution structure, each subunit comprises a metal base island and pins, and the metal base islands and the pins are in an up-down distribution structure;
the metal base islands of the subunits in the 1 st row are connected with the upper frame of the rectangular frame, the pins of the subunits in the 12 th row are connected with the lower frame of the rectangular frame, the subunits in the adjacent rows are connected in the horizontal direction through transverse connecting ribs, the left end of each transverse connecting rib is connected with the left frame of the rectangular frame, and the right end of each transverse connecting rib is connected with the right frame of the rectangular frame;
the left side that is located the subunit of 1 st row is connected with the frame on the left side of rectangle frame, the right side that is located the subunit of 40 th row is connected with the frame on the right of rectangle frame, connect through vertical even muscle in vertical direction between the subunit of adjacent row, every two subunits constitute a row of unit, vertical even muscle between the adjacent row of unit goes up and is equipped with the long circle through-hole along vertical direction equidistant, every two is listed as a unit and constitutes a piece unit, vertical even muscle between the adjacent piece unit goes up and is equipped with 4 rectangle partition grooves along vertical direction equidistant, every top that vertically links the muscle is connected with the last frame of rectangle frame, the middle part is connected with the horizontal even muscle that passes through, the bottom is connected with the lower frame of rectangle frame.
2. A PDFN5X 612 row matrix lead frame structure according to claim 1, wherein: the width of the longitudinal connecting rib between the adjacent row units is larger than that of the longitudinal connecting rib between the two subunits in the row units.
3. A PDFN5X 612 row matrix lead frame structure according to claim 2, wherein: the width of the longitudinal connecting rib between the adjacent block units is equal to that between the adjacent column units.
4. A PDFN5X 612 row matrix lead frame structure according to claim 3, wherein: and circular positioning holes are formed in the upper frame and the lower frame of the rectangular frame at equal intervals in the horizontal direction.
5. The PDFN5X 612 row matrix lead frame structure of claim 4, wherein: the distance between adjacent circular positioning holes is equal to half of the distance between adjacent rows of rectangular partition grooves.
6. A PDFN5X 612 row matrix lead frame structure according to claim 1, wherein: the number of the metal base islands is 1 or 2.
7. The PDFN5X 612 row matrix lead frame structure of claim 6, wherein: when the quantity of metal base island is 1, the left side of metal base island is connected to the rectangle frame or the vertical continuous rib that are located the left side through 1 little continuous rib, and the right side is connected to the rectangle frame or the vertical continuous rib that are located the right side through 1 little continuous rib, and the upside is connected to the rectangle frame or the horizontal continuous rib that are located the upside through 4 little continuous ribs.
8. A PDFN5X 612 row matrix lead frame structure according to claim 1, wherein: the pin quantity is 4, and wherein 1 keying platform is set up jointly to 3 pins on the left side, and 1 pin on right side sets up 1 keying platform alone.
9. A PDFN5X 612 row matrix lead frame structure according to claim 1, wherein: the length of the rectangular frame is 300 mm, and the width of the rectangular frame is 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287868.5U CN210668357U (en) | 2019-12-18 | 2019-12-18 | PDFN5X 612 row matrix type lead frame structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287868.5U CN210668357U (en) | 2019-12-18 | 2019-12-18 | PDFN5X 612 row matrix type lead frame structure |
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| Publication Number | Publication Date |
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| CN210668357U true CN210668357U (en) | 2020-06-02 |
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| CN201922287868.5U Active CN210668357U (en) | 2019-12-18 | 2019-12-18 | PDFN5X 612 row matrix type lead frame structure |
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- 2019-12-18 CN CN201922287868.5U patent/CN210668357U/en active Active
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