CN111199943A - Lead frame and lead frame piles up with supporting positioner thereof - Google Patents
Lead frame and lead frame piles up with supporting positioner thereof Download PDFInfo
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- CN111199943A CN111199943A CN201811364517.3A CN201811364517A CN111199943A CN 111199943 A CN111199943 A CN 111199943A CN 201811364517 A CN201811364517 A CN 201811364517A CN 111199943 A CN111199943 A CN 111199943A
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- block
- supporting
- lead frame
- frame body
- supporting block
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
- H01L23/49565—Side rails of the lead frame, e.g. with perforations, sprocket holes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49568—Lead-frames or other flat leads specifically adapted to facilitate heat dissipation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Microelectronics & Electronic Packaging (AREA)
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Abstract
The invention discloses a supporting and positioning device for lead frame stacking, which comprises a frame body and a small island, wherein a supporting block is inserted outside the frame body, the supporting block is a copper-aluminum alloy heat-conducting block, a slot is formed in the position, inserted in the frame body, of the supporting block, a fixed block and a movable block are respectively arranged on two sides between a bottom plate and a top plate, block slots matched with the supporting block are formed in the opposite sides of the fixed block and the movable block at equal intervals from top to bottom, a lower supporting block and an upper supporting block are respectively and fixedly arranged on two sides of the bottom plate and the top plate, universal wheels are respectively arranged on the lower supporting block and the upper supporting block on one side of the fixed block, a sleeve with an opening on one side is fixedly arranged at the. The invention can provide a protection structure for the edge of the frame body, improve the heat dissipation effect of the whole frame structure, avoid extrusion damage of internal elements, form a draw-bar box structure after stacking, and is convenient to move and carry.
Description
Technical Field
The invention belongs to the technical field of waste treatment, particularly relates to a lead frame, and also relates to a supporting and positioning device for stacking the lead frame.
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 the 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 use the lead frame in most semiconductor integrated blocks, is an important basic material in the electronic information industry, is roughly divided into a copper-iron system, a copper-nickel-silicon system and a copper-chromium system by copper alloy, the copper-nickel-tin series (JK-2 alloy) and other ternary and quaternary multi-element copper alloys can obtain better performance and lower cost than the traditional binary alloys, and the copper-iron series alloy has the most brands, better mechanical strength, stress relaxation resistance and low creep property, thereby being a good lead frame material.
The edge of the existing lead frame structure is not provided with a protection structure, the edge of the frame is easily damaged, the heat dissipation effect of the lead frame structure is poor, when the lead frame is stacked, the existing support positioning is carried out, the frame is easily extruded when being stacked, elements are damaged, and the lead frame structure is not portable and movable after being stacked.
Disclosure of Invention
The invention aims to provide a lead frame and a lead frame stacking supporting and positioning device thereof, which can provide a protection structure for the edge of a frame body, avoid the edge damage of the frame body, improve the heat dissipation effect of the whole frame structure by utilizing the heat conduction performance of a copper-aluminum alloy heat conduction block, avoid the contact between the upper part and the lower part of the frame body in the stacking process, avoid the extrusion damage of internal elements, form a draw-bar box structure after stacking, are convenient to move and carry, and facilitate the movement of the device, so as to solve the problems in the prior art provided by the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a lead frame, includes frame body and chinampa, the frame body outside is inserted and is equipped with the supporting shoe, the supporting shoe is copper aluminium alloy heat conduction piece, two sets of first connecting bars that first connecting bar one side of this internal one side of frame set up through the symmetry is connected with the second connecting block, the chinampa both sides are connected in the second connecting block through the inner leg pin of even setting, are connected with the second even muscle between adjacent two sets of first connecting blocks, the notch that equidistant was seted up in frame body both sides all is close to the chinampa both sides, notch one side symmetry is provided with two sets of outer leg pins, it inserts the position and establishes the slot to lie in the frame body on the supporting shoe, one side covers there is the cushion in the slot.
Preferably, the frame body is provided with positioning holes at equal intervals.
Preferably, the two sides of the island are symmetrically positioned on the inner leg pins and provided with fixing adhesive tapes.
Preferably, the outer leg pin is provided with a first through hole and a second through hole, the first through hole and the second through hole are respectively provided with one group or two groups, and the first through hole is arranged on one side of the two groups of second through holes.
The invention also provides a supporting and positioning device for stacking lead frames, which comprises a bottom plate and a top plate, wherein a fixed block and a movable block are respectively arranged at two sides between the bottom plate and the top plate, the opposite sides of the fixed block and the movable block are provided with block grooves matched with the supporting blocks at equal intervals from top to bottom, a lower supporting block and an upper supporting block are respectively and fixedly arranged on the two sides of the bottom plate and the top plate, the upper side and the lower side of the moving block are respectively and fixedly connected with the lower supporting block and the upper supporting block through a first guide block and a first bolt penetrating through the first guide block, universal wheels are respectively arranged on the lower supporting block and the upper supporting block at one side of the fixed block, a sleeve with an opening at one side is fixedly arranged at the bottom of the bottom plate, a pull rod is arranged in the sleeve in a sliding manner, the position of the pull rod, which is close to the opening of the sleeve, is connected with a handle through a guide rod, a locking knob penetrates through one side, close to the opening, of the outer portion of the sleeve, and a lifting handle mechanism is fixedly arranged in the middle of the top plate.
Preferably, the lower supporting block and the upper supporting block on one side of the moving block are correspondingly provided with strip-shaped holes at the penetrating positions of the first bolts.
Preferably, the two sides of the sleeve are fixedly connected to the bottom of the bottom plate through a second guide block and a second bolt penetrating through the second guide block.
Preferably, the handle mechanism comprises a groove-shaped rod and a rubber sleeve sleeved on the groove-shaped rod, and the bottom of the groove-shaped rod is fixedly connected to the top of the top plate through a fixing block and a third bolt penetrating through the fixing block.
The invention has the technical effects and advantages that: compared with the prior art, the lead frame and the supporting and positioning device for lead frame stacking have the following advantages that:
1. according to the invention, the supporting block structure is inserted at the outer side of the frame body, so that a protection structure can be provided for the edge of the frame body, and the edge of the frame body is prevented from being damaged;
2. because the supporting block is a copper-aluminum alloy heat-conducting block, the heat-conducting property of the copper-aluminum alloy heat-conducting block can be utilized, and the heat-radiating effect of the whole frame structure is improved;
3. the frame body can be stacked and positioned on the fixed block and the moving block layer by layer, and meanwhile, the frame body is not contacted up and down, so that the internal elements are not extruded and damaged;
4. the sleeve that sets up is fixed to the bottom plate bottom, pulls out the sleeve with the pull rod to lock through the locking knob, the universal wheel structure of installation on the lower piece of cooperation fixed block one side and the last piece can form a draw-bar box structure, removes convenient to carry, and the device of facilitating the use removes.
Drawings
FIG. 1 is a schematic structural diagram of a lead frame according to the present invention;
FIG. 2 is a cross-sectional view of a support block of a lead frame according to the present invention;
FIG. 3 is a schematic structural diagram of a supporting and positioning device for stacking lead frames according to the present invention;
FIG. 4 is an enlarged view of the supporting and positioning device for stacking lead frames in FIG. 3A;
FIG. 5 is a schematic view of a handle mechanism of a supporting and positioning device for stacking lead frames according to the present invention;
fig. 6 is a schematic structural diagram of a sleeve portion of a supporting and positioning device for stacking lead frames according to the present invention.
In the figure: the structure comprises a frame body 1, a support block 2, a positioning hole 3, a first connecting block 4, a first connecting rib 5, a second connecting block 6, an inner leg pin 7, a small island 8, a fixing adhesive tape 9, a notch 10, an outer leg pin 11, a first through hole 111, a second through hole 112, a second connecting rib 12, a slot 13, a cushion 14, a bottom plate 15, a top plate 16, a fixing block 17, a moving block 18, a block groove 19, an upper supporting block 20, a universal wheel 21, a lower supporting block 22, a sleeve 23, a pull rod 24, a guide rod 25, a handle 26, a second guide block 27, a second bolt 28, a handle mechanism 29, a groove type rod 291, a rubber sleeve 292, a fixing block 293, a third bolt 294, a first guide block 30, a first bolt 31, a strip-shaped hole 32 and a locking knob 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a lead frame as shown in figures 1-2, which comprises a frame body 1 and a small island 8, wherein the small island 8 is used for mounting a chip structure, a supporting block 2 is inserted at the outer side of the frame body 1, the supporting block 2 is a copper-aluminum alloy heat conducting block, and the copper-aluminum alloy heat conducting block structure is adopted, so that the heat dissipation and heat conduction effects are good; one side of a first connecting block 4 on one side in the frame body 1 is connected with a second connecting block 6 through two groups of first connecting ribs 5 which are symmetrically arranged, two sides of the island 8 are connected with the second connecting block 6 through inner leg pins 7 which are uniformly arranged, a second connecting rib 12 is connected between two adjacent groups of first connecting blocks 4, notches 10 which are formed in two sides of the frame body 1 at equal intervals are close to two sides of the island 8, two groups of outer leg pins 11 are symmetrically arranged on one side of each notch 10, slots 13 are formed in the support block 2 at the insertion position of the frame body 1, and the insertion of the frame body 1 is facilitated through the arranged slot 13 structure; a soft pad 14 covers one side in the slot 13; through the cushion 14 structure that sets up, can provide protective structure for frame body 1 border when frame body 1 inserts, prevent the border damage.
Preferably, the frame body 1 is provided with positioning holes 3 at equal intervals.
By adopting the technical scheme, the device comprises a base; through the 3 structures of locating hole of seting up, make things convenient for the installation and the fixed of frame body 1 structure.
Preferably, the two symmetrical positions of the island 8 are provided with fixing adhesive tapes 9 on the inner leg pins 7.
By adopting the technical scheme, the connection strength between the inner leg pins 7 and the position of the island 8 can be improved by arranging the fixing adhesive tape 9 on the inner leg pins 7, and the use stability is improved.
Preferably, the outer leg pin 11 is provided with a first through hole 111 and a second through hole 112, the first through hole 111 and the second through hole 112 are respectively provided with one group or two groups, and the first through hole 111 is located at one side of the two groups of second through holes 112.
By adopting the technical scheme, the first through hole 111 and the second through hole 112 formed in the outer leg pin 11 can reduce the mass of the outer leg pin 11, and the through hole structure can improve the heat dissipation effect of the structure.
The invention provides a lead frame stacking supporting and positioning device as shown in figures 3-6, which comprises a bottom plate 15 and a top plate 16, wherein a fixed block 17 and a movable block 18 are respectively arranged on two sides between the bottom plate 15 and the top plate 16, block grooves 19 matched with supporting blocks 2 are respectively arranged on opposite sides of the fixed block 17 and the movable block 18 at equal intervals from top to bottom, and the block grooves 19 are used for inserting the supporting blocks 2 with a frame body 1 and an internal structure and are arranged between the fixed block 17 and the movable block 18; a lower support block 22 and an upper support block 20 are respectively fixedly arranged on two sides of the bottom plate 15 and the top plate 16, the upper side and the lower side of the moving block 18 are respectively fixedly connected with the lower support block 22 and the upper support block 20 through a first guide block 30 and a first bolt 31 penetrating through the first guide block 30, and the moving block 18 is conveniently fixed on the lower support block 22 and the upper support block 20 through the structures of the first guide block 30 and the first bolt 31, so that the assembly and disassembly are convenient; universal wheels 21 are respectively arranged on the lower support block 22 and the upper support block 20 on one side of the fixing block 17, a sleeve 23 with an opening on one side is fixedly arranged at the bottom of the bottom plate 15, a pull rod 24 is slidably arranged in the sleeve 23, the position, close to the opening of the sleeve 23, of the pull rod 24 is connected with a handle 26 through a guide rod 25, a locking knob 33 penetrates through one side, close to the opening, of the outer portion of the sleeve 23, the pull rod 24 is pulled out of the sleeve 23 to be exposed by loosening the locking knob 33, after the pull rod is pulled out of a proper position, the locking knob 33 is locked and rotated, one end of the pull rod 24 is fixed in the sleeve 23, and the whole structure is matched with the universal wheels 21 to; a handle mechanism 29 is fixedly arranged at the middle position of the top plate 16. The device is also convenient to lift through the arranged handle mechanism 29.
Preferably, a strip-shaped hole 32 is correspondingly formed in the penetrating position of the first bolt 31 on the lower support block 22 and the upper support block 20 on one side of the moving block 18.
Through adopting above-mentioned technical scheme, through adopting the bar hole 32 structure, when first bolt 31 on movable block 18 unclamped, conveniently stimulate movable block 18 and remove on lower supporting piece 22 and upper supporting piece 20, the convenient installation to the supporting shoe 2 structure that has frame body 1.
Preferably, both sides of the sleeve 23 are fixedly connected to the bottom of the bottom plate 15 by a second guide block 27 and a second bolt 28 penetrating the second guide block 27.
Through adopting above-mentioned technical scheme, through adopting second guide block 27 and second bolt 28 structural fixation for sleeve 23 is stable in the installation on bottom plate 15, the dismouting of being convenient for simultaneously.
Preferably, the handle mechanism 29 comprises a groove rod 291 and a rubber sleeve 292 sleeved on the groove rod 291, wherein the bottom of the groove rod 291 is fixedly connected to the top of the top plate 16 through a fixing block 293 and a third bolt 294 penetrating the fixing block 293.
By adopting the technical scheme, the rubber sleeve 292 structure is arranged on the groove-shaped rod 291, so that the operation is convenient when the device is lifted, and the installation is convenient by adopting the fixing block 293 and the third bolt 294 penetrating through the fixing block 293 to fix the groove-shaped rod 291 structure.
The structure principle is as follows: the supporting block 2 structure is inserted outside the frame body 1, so that a protective structure can be provided for the edge of the frame body 1, the edge damage of the frame body 1 is avoided, and meanwhile, the heat-conducting property of the copper-aluminum alloy heat-conducting block can be utilized to improve the heat-radiating effect of the whole frame structure as the supporting block 2 is the copper-aluminum alloy heat-conducting block;
the frame body 1 is inserted on the supporting block 2, as the opposite sides of the fixed block 17 and the moving block 18 are provided with block grooves 19 which are matched with the supporting block 2 at equal intervals up and down, the moving block 18 is moved to the side far away from the fixed block 17 by loosening the first bolt 31 structure at one side of the moving block 18, the supporting block 2 with the frame body 1 can be inserted on the block groove 19 on the fixed block 17, then the moving block 18 is restored to the original position, so that the block grooves 19 on the moving block 18 and the supporting block 2 are oppositely inserted, the frame bodies 1 can be stacked and positioned layer by layer, meanwhile, the frame body 1 is not contacted up and down, the extrusion damage of internal elements can not be caused, the sleeve 23 fixedly arranged at the bottom of the bottom plate 15 is pulled out of the sleeve 23 and is locked by the locking knob 33, and the lower support block 22 at one side of the fixed block 17 and the universal, can form a draw-bar box structure, remove convenient to carry, make things convenient for the device to remove.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. Lead frame, comprising a frame body (1) and a small island (8), characterized in that: a supporting block (2) is inserted at the outer side of the frame body (1), the supporting block (2) is a copper-aluminum alloy heat-conducting block, one side of the first connecting block (4) at one side in the frame body (1) is connected with a second connecting block (6) through two groups of first connecting ribs (5) which are symmetrically arranged, two sides of the island (8) are connected with the second connecting blocks (6) through evenly arranged inner leg pins (7), a second connecting rib (12) is connected between two adjacent groups of the first connecting blocks (4), notches (10) which are arranged on the two sides of the frame body (1) at equal intervals are close to the two sides of the island (8), two groups of outer leg pins (11) are symmetrically arranged on one side of the notch (10), a slot (13) is formed in the position, located at the inserting position of the frame body (1), of the supporting block (2), and a cushion (14) covers one side of the slot (13).
2. A lead frame according to claim 1, characterized in that: the frame body (1) is provided with positioning holes (3) at equal intervals.
3. A lead frame according to claim 1, characterized in that: and fixing adhesive tapes (9) are arranged on the inner leg pins (7) at the symmetrical positions of the two sides of the island (8).
4. A lead frame according to claim 1, characterized in that: the outer leg pin (11) is provided with a first through hole (111) and a second through hole (112), the first through hole (111) and the second through hole (112) are respectively provided with one group and two groups, and the first through hole (111) is arranged on one side of the two groups of second through holes (112).
5. A supporting and positioning device for lead frame stacking according to any of claims 1-4, comprising a bottom plate (15) and a top plate (16), characterized in that: a fixed block (17) and a movable block (18) are respectively arranged on two sides between the bottom plate (15) and the top plate (16), block grooves (19) matched with the supporting blocks (2) are respectively formed in one opposite side of the fixed block (17) and the movable block (18) at equal intervals from top to bottom, a lower supporting block (22) and an upper supporting block (20) are respectively fixedly arranged on two sides of the bottom plate (15) and the top plate (16), universal wheels (21) are respectively arranged on the lower supporting block (22) and the upper supporting block (20) on one side of the fixed block (17) through first guide blocks (30) and first bolts (31) penetrating through the first guide blocks (30), a sleeve (23) with an opening on one side is fixedly arranged at the bottom of the bottom plate (15), and a pull rod (24) is slidably arranged in the sleeve (23), the handle (26) is connected to the position, close to the opening of the sleeve (23), of the pull rod (24) through a guide rod (25), a locking knob (33) penetrates through the side, close to the opening, of the outer portion of the sleeve (23), and a lifting handle mechanism (29) is fixedly arranged in the middle of the top plate (16).
6. The supporting and positioning device for lead frame stacking according to claim 5, wherein: strip-shaped holes (32) are correspondingly formed in the penetrating positions of the first bolts (31) on the lower supporting block (22) and the upper supporting block (20) on one side of the moving block (18).
7. The supporting and positioning device for lead frame stacking according to claim 5, wherein: and two sides of the sleeve (23) are fixedly connected to the bottom of the bottom plate (15) through a second guide block (27) and a second bolt (28) penetrating through the second guide block (27).
8. The supporting and positioning device for lead frame stacking according to claim 5, wherein: the handle mechanism (29) comprises a groove-shaped rod (291) and a rubber sleeve (292) sleeved on the groove-shaped rod (291), and the bottom of the groove-shaped rod (291) is fixedly connected to the top of the top plate (16) through a fixing block (293) and a third bolt (294) penetrating through the fixing block (293).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364517.3A CN111199943B (en) | 2018-11-16 | 2018-11-16 | Lead frame and lead frame piles up with supporting positioner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364517.3A CN111199943B (en) | 2018-11-16 | 2018-11-16 | Lead frame and lead frame piles up with supporting positioner thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111199943A true CN111199943A (en) | 2020-05-26 |
| CN111199943B CN111199943B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811364517.3A Active CN111199943B (en) | 2018-11-16 | 2018-11-16 | Lead frame and lead frame piles up with supporting positioner thereof |
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| Country | Link |
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| CN (1) | CN111199943B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334750A (en) * | 2022-03-09 | 2022-04-12 | 宁波德洲精密电子有限公司 | Packaging structure of lead frame and packaging process thereof |
| CN114597189A (en) * | 2022-03-04 | 2022-06-07 | 泰兴市永志电子器件有限公司 | Lead frame structure for integrated circuit |
| CN116705748A (en) * | 2023-08-08 | 2023-09-05 | 山东隽宇电子科技有限公司 | Semiconductor large-area cooling lead frame |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114597189A (en) * | 2022-03-04 | 2022-06-07 | 泰兴市永志电子器件有限公司 | Lead frame structure for integrated circuit |
| CN114597189B (en) * | 2022-03-04 | 2022-12-30 | 泰兴市永志电子器件有限公司 | Lead frame structure for integrated circuit |
| CN114334750A (en) * | 2022-03-09 | 2022-04-12 | 宁波德洲精密电子有限公司 | Packaging structure of lead frame and packaging process thereof |
| CN116705748A (en) * | 2023-08-08 | 2023-09-05 | 山东隽宇电子科技有限公司 | Semiconductor large-area cooling lead frame |
| CN116705748B (en) * | 2023-08-08 | 2023-10-17 | 山东隽宇电子科技有限公司 | Semiconductor large-area cooling lead frame |
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| Publication number | Publication date |
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| CN111199943B (en) | 2021-11-12 |
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