CN117059527B - Film covering device of anti-deformation lead frame - Google Patents
Film covering device of anti-deformation lead frame Download PDFInfo
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- CN117059527B CN117059527B CN202311298402.XA CN202311298402A CN117059527B CN 117059527 B CN117059527 B CN 117059527B CN 202311298402 A CN202311298402 A CN 202311298402A CN 117059527 B CN117059527 B CN 117059527B
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 210000002489 tectorial membrane Anatomy 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 25
- 239000007921 spray Substances 0.000 claims description 22
- 230000000670 limiting effect Effects 0.000 claims description 14
- 239000011241 protective layer Substances 0.000 claims description 8
- 239000002861 polymer material Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000010405 clearance mechanism Effects 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 239000007888 film coating Substances 0.000 description 5
- 238000009501 film coating Methods 0.000 description 5
- 238000003475 lamination Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67126—Apparatus for sealing, encapsulating, glassing, decapsulating or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4821—Flat leads, e.g. lead frames with or without insulating supports
- H01L21/4835—Cleaning, e.g. removing of solder
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
The invention relates to the technical field of chip processing, and discloses a film covering device of an anti-deformation lead frame, which comprises the following components: a lead frame and a structural reinforcement film; the structure reinforcing film is upper and lower two-layer cover in lead frame's upper and lower both sides to structure reinforcing film and lead frame's shape looks adaptation, structure reinforcing film adopts macromolecular material to make, structure reinforcing film carries out the tectorial membrane operation through quick tectorial membrane device, quick tectorial membrane device includes: conveyer, sticking film machine, processing mechanism, clearance mechanism, controller, mounting bracket and transport module. This tectorial membrane device of preapring for an unfavorable turn of events shape lead frame guarantees lead frame self conductive property simultaneously, covers the macromolecular material film at the lead frame surface, to providing extra support and the protection of lead frame, and then reinforcing lead frame structure's intensity and stability to provide more quick efficient to lead frame carries out tectorial membrane device of shape adaptation.
Description
Technical Field
The invention relates to the technical field of chip processing, in particular to a film covering device of an anti-deformation lead frame.
Background
The chip lead frame is a conductive structure for connecting the chip to an external package or connector. The chip lead frame is usually positioned at the top of the chip package and is made of metal, the main function of the chip lead frame is to provide a connecting passage for electric signals and a power supply, the circuit inside the chip is connected with an external circuit (such as a PCB or other packaging forms), the lead frame plays a role in the chip package process, not only is responsible for transmitting signals and electric energy, but also meets the requirements on conductivity, stability and reliability, the chip lead frame adopts a multi-layer metal laminated structure so as to provide more lead connection in a limited space, each layer of metal is connected to pins inside the chip through fine wires, and finally is connected with the external package or a connector through welding or other connecting technologies, and when the chip lead frame is designed, the factors such as the number of the leads, the layout, the position pairing of the leads and the pins are needed to be considered;
in the prior art, the lead frame is generally made of a metal material such as copper, and the material has good conductivity, is relatively fragile and is easy to break or deform, the number and the size of leads are required to be balanced in the design of the lead frame, and the lead frame is influenced by factors such as pairing of the leads and the leads, so that the lead frame layout can have uneven strength or stress concentration phenomenon, and the strength of the lead frame structure is further reduced.
Disclosure of Invention
The present invention is directed to a film covering device for a lead frame, which solves the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: a deformation-resistant lead frame lamination device comprising: a lead frame and a structural reinforcement film; the structure reinforcing film is formed by covering the upper side and the lower side of the lead frame with an upper layer and a lower layer, and is matched with the lead frame in shape, and the structure reinforcing film is subjected to film covering operation on the lead frame through a rapid film covering device.
The quick tectorial membrane device includes: the device comprises a conveyor, a film sticking machine, a processing mechanism, a cleaning mechanism, a controller, a mounting rack and a carrying module; the film sticking machine is arranged on the right side of the conveyor; the processing mechanism is arranged on the right side of the film sticking machine; the cleaning mechanism is arranged on the right side of the processing mechanism; the controller is arranged at the front side of the conveyor and is electrically connected with the conveyor and the film sticking machine respectively; the mounting frame is arranged at the rear sides of the conveyor, the film sticking machine, the processing mechanism and the cleaning mechanism along the left-right direction; the transport module is installed the front side top of mounting bracket, transport module and controller electric connection.
Preferably, the structural reinforcement film includes: the heat-conducting layer comprises an adhesion layer, a structural layer, a heat-conducting layer and a protective layer; the adhesion layer is directly adhered to the surface of the lead frame, so that better bonding strength can be provided, and the whole structure reinforcing film is firmly adhered to the outside of the lead frame; the structure layer is arranged outside the adhesion layer, is made of a high polymer material, can effectively increase the overall strength of the lead frame without affecting the conductivity of the lead frame, bears part of stress, lightens the load of the lead frame and improves the durability and deformation resistance of the lead frame; the heat conducting layer is arranged outside the structural layer, has high heat conductivity coefficient, and can assist in guiding heat from the lead frame to the inside of the structural reinforcing film and transmitting the heat to the external environment through the structural reinforcing film; the protective layer is disposed outside the thermally conductive layer, and provides additional corrosion and oxidation protection, extending the useful life of the structural reinforcement film and the lead frame.
Preferably, the processing mechanism includes: the device comprises a water tank, an electric control valve, a bubble generator, a fixing frame, a horizontal movement module and a shear type lifting module; the water tank is arranged on the right side of the film sticking machine along the front-back direction; the electric control valve is arranged on the front side of the outer wall of the water tank, and is electrically connected with the controller; the bubble generator is arranged on the right side of the inner cavity of the water tank, and the electric control valve and the bubble generator are connected; the fixing frame is arranged at the top of the water tank and positioned at the front side of the opening above the inner cavity of the water tank; the horizontal moving module is arranged below the fixing frame along the front-back direction and is electrically connected with the controller; the shear type lifting module is arranged at the bottom of the movable end of the horizontal movement module and is electrically connected with the controller.
Preferably, the processing mechanism further comprises: the device comprises a mounting seat, a double-end telescopic module, a mounting plate and a cover plate; the mounting seat is arranged at the bottom of the lifting top end of the scissor lifting module; the double-end telescopic module is arranged at the rear side of the mounting seat and is electrically connected with the controller; the number of the mounting plates is two, and the two mounting plates are respectively arranged at the upper side and the lower side of the telescopic end of the double-end telescopic module; the number of the cover plates is two, and the two cover plates are detachably arranged on the outer sides of the upper mounting plate and the lower mounting plate respectively.
Preferably, the cleaning mechanism includes: a base frame, a horizontal conveyor, a chain conveyor, a water tank, a fixed nozzle frame, an auxiliary cleaning assembly and an air pump; the base frame is arranged on the right side of the processing mechanism along the up-down direction; the horizontal conveyor is arranged at the top of the base frame along the left-right direction, and is electrically connected with the controller; the chain conveyor is arranged at the left side of the horizontal conveyor, and the horizontal conveyor is electrically connected with the controller; the water tank is arranged at the bottom of the chain conveyor along the left-right direction; the fixed nozzle frame is fixedly arranged in the middle of the top end of the chain conveyor; the auxiliary cleaning component is arranged on the right side of the top end of the chain conveyor; the air pump is installed through the support the inboard of base frame, air pump and fixed shower nozzle frame are connected through the pipeline, air pump and controller electric connection.
Preferably, the auxiliary cleaning assembly comprises: the device comprises a tank body shell, a second mounting seat, a cam disc, a mounting rod, a spray head pipe, a guide rail rod, a moving seat, a limiting pin, a rack rod and a first guide rail groove; the shell of the tank body is arranged on the right side of the top end of the chain conveyor through a bracket; the second mounting seat is fixedly arranged in the middle of the top end of the inner cavity of the groove body shell; the number of the cam discs is two, the two cam discs are respectively connected to the front and rear ends of the inner side of the second mounting seat through pin shafts in a rotating way, the front and rear cam discs are turned over by one hundred eighty degrees and are arranged in a overlapping way, and arc-shaped sliding grooves are formed in the outer sides of the front and rear cam discs; the number of the mounting rods is two, the two mounting rods are respectively connected to the outer sides of the axle centers of the front cam disc and the rear cam disc in a key way, and the front mounting rod and the rear mounting rod are arranged in a one hundred eighty degree back overlapping way; the number of the spray head pipes is two, the two spray head pipes are respectively arranged at the outer sides of the bottom ends of the front spray head pipe and the rear spray head pipe, and the air pump is connected with the spray head pipes through pipelines; the guide rail rod is arranged in the middle of the inner side of the second mounting seat along the up-down direction; the movable seat is sleeved outside the guide rail rod; the number of the limiting pins is two, and the outer sides of the two limiting pins are respectively spliced with the inner sliding grooves of the front cam disc and the rear cam disc; the rack bar is arranged on the right side of the top end of the movable seat along the up-down direction; the first guide rail groove is arranged at the top of the inner cavity of the groove body shell along the up-down direction and is positioned at the right side of the second mounting seat, and the top of the rack bar is spliced with the inner cavity of the first guide rail groove.
Preferably, the auxiliary cleaning assembly further comprises: the device comprises a cam, a micro motor, a connecting rod, a rotating seat, an arc-shaped rack, a second guide rail groove, a rack block, an electric push rod and a connecting frame; the cam is rotationally connected to the top of the inner cavity of the groove body shell through the pin shaft seat and is positioned on the right side of the first guide rail groove; the miniature motor is fixedly arranged at the top end of the inner cavity of the groove body shell, the rotating end of the miniature motor is fixedly connected with the axle center of the cam, and the miniature motor is electrically connected with the controller; one end of the connecting rod is rotationally connected with the bottom end of the rear side of the cam through a pin shaft; the rotating seat is rotationally connected with the other end of the connecting rod through a pin shaft; the number of the arc racks is two, the two arc racks are respectively arranged at the left side and the right side of the rotating seat, and the arc racks at the left side are meshed with the rack rod; the second guide rail groove is arranged at the top of the inner cavity of the groove body shell along the up-down direction and is positioned at the right side of the cam; the rack block is inserted into the inner cavity of the second guide rail groove, and the arc-shaped rack on the right side is meshed with the rack block; the electric push rod is arranged on the right side of the second guide rail groove along the up-down direction, and is electrically connected with the controller; the connecting frame is arranged at the bottom of the telescopic end of the electric push rod, and the connecting frame is fixedly connected with the top of the rack block.
Compared with the prior art, the invention has the beneficial effects that:
1. the lead frame on the processing station in the self-body is subjected to double-sided film coating operation through the film sticking machine, the carrying module grabs the lead frame and carries the lead frame to the inside of the processing mechanism, the double-end telescopic module drives the cover plate to be attached to the upper side and the lower side of the lead frame, the electric control valve opens the internal valve organic solvent to be discharged by the bubble generator, so that the organic solvent is immersed on the surface of the lead frame, the structural reinforcing film outside the gap of the lead frame structure is dissolved by the organic solvent, the structural reinforcing film on the surface of the lead frame is blocked by the cover plate and then remains, and then the surface of the two sides of the lead frame is covered with the structural reinforcing film with self-body shape adaptation.
2. The high-pressure air flow generated inside the air pump is sprayed out of the fixed spray head frame and the spray head pipe to clean the surface of the lead frame, the miniature motor drives the cam to drive the top end of the connecting rod to move circumferentially, the rotating seat drives the left arc rack to reciprocate vertically by taking the meshing position of the right arc rack and the rack block as a shaft, the rack rod reciprocates vertically in the inner cavity of the first guide rail groove under the action of the left arc rack, the moving seat is driven by the rack rod to reciprocate vertically under the limiting action of the guide rail rod, the moving seat is driven by the limiting pins on the front side and the rear side of the moving seat to reciprocate vertically in the inner cavities of the cam plates on the two sides, and then the cam plate drives the mounting rod to drive the spray head pipe to swing intermittently clockwise or anticlockwise, so that the surface of the lead frame below is cleaned in a large range.
In summary, the invention can ensure the conductivity of the lead frame itself, and cover the surface of the lead frame with a polymer film, thereby providing additional support and protection for the lead frame, further enhancing the strength and stability of the lead frame structure, providing a film coating device for adapting the shape of the lead frame more quickly and efficiently, and improving the film coating efficiency of the lead frame.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a schematic view of the structurally reinforced membrane of FIG. 1
FIG. 3 is a schematic view of a rapid lamination device according to the present invention;
FIG. 4 is an exploded view of the processing mechanism of FIG. 1;
FIG. 5 is an enlarged view at A of FIG. 4;
FIG. 6 is an exploded view of the cleaning mechanism of FIG. 1;
fig. 7 is an exploded view of the auxiliary cleaning assembly of fig. 6.
In the figure: 100. a lead frame; 200. a structural reinforcement film; 201. an adhesive layer; 202. a structural layer; 203. a heat conducting layer; 204. a protective layer; 1. a conveyor; 2. a film sticking machine; 3. a processing mechanism; 31. a water tank; 32. an electric control valve; 33. a bubble generator; 34. a fixing frame; 35. a horizontal movement module; 36. a scissor type lifting module; 37. a mounting base; 38. a double-ended telescopic module; 39. a mounting plate; 310. a cover plate; 4. a cleaning mechanism; 41. a base frame; 42. a horizontal conveyor; 43. a chain conveyor; 44. a water tank; 45. fixed nozzle frame; 46. an air pump; 5. an auxiliary cleaning assembly; 51. a tank body housing; 52. a second mounting base; 53. a cam plate; 54. a mounting rod; 55. a shower nozzle pipe; 56. a guide rail rod; 57. a movable seat; 58. a limiting pin; 59. a rack bar; 510. a first rail groove; 511. a cam; 512. a micro motor; 513. a connecting rod; 514. a rotating seat; 515. an arc-shaped rack; 516. a second rail groove; 517. a rack block; 518. an electric push rod; 519. a connecting frame; 6. a controller; 7. a mounting frame; 8. and carrying the module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides a technical solution: a deformation-resistant lead frame lamination device comprising: a lead frame 100 and a structural reinforcement film 200; the structure reinforcing film 200 is formed by covering the upper and lower sides of the lead frame 100 with upper and lower layers, and the structure reinforcing film 200 is adapted to the shape of the lead frame 100, and the structure reinforcing film 200 is coated on the lead frame 100 by a rapid coating device.
As a preferred aspect, the structural reinforcement film 200 further includes: an adhesion layer 201, a structural layer 202, a thermally conductive layer 203, and a protective layer 204; the adhesion layer 201 is directly adhered to the surface of the lead frame 100, so that better bonding strength can be provided, and the whole structure reinforcing film 200 is firmly adhered to the outside of the lead frame 100; the structural layer 202 is arranged outside the adhesion layer 201, the structural layer 202 is made of a high polymer material, and can effectively increase the overall strength of the lead frame 100 without affecting the conductivity of the lead frame 100, bear part of stress, lighten the load of the lead frame 100 and improve the durability and the deformation resistance of the lead frame; the heat conductive layer 203 is disposed outside the structural layer 202, and the heat conductive layer 203 has a high thermal conductivity coefficient, and is capable of assisting in guiding heat from the lead frame 100 to the inside of the structural reinforcement film 200 and transferring the heat to the external environment through the structural reinforcement film 200; the protective layer 204 is disposed outside the thermally conductive layer 203, the protective layer 204 providing additional corrosion and oxidation protection, extending the useful life of the structural reinforcement film 200 and the lead frame 100.
As a preferred solution, as shown in fig. 1, the rapid film coating device includes: the device comprises a conveyor 1, a film sticking machine 2, a processing mechanism 3, a cleaning mechanism 4, a controller 6, a mounting frame 7 and a carrying module 8, wherein the conveyor 1 is controlled by a preset program in the controller 6, and the conveyor 1 can horizontally convey a lead frame 100; the film sticking machine 2 is arranged on the right side of the conveyor 1, the film sticking machine 2 is controlled by a preset program in the controller 6, and the film sticking machine 2 can carry out double-sided film coating operation on the lead frame 100 on the processing station in the film sticking machine 2; the processing mechanism 3 is arranged on the right side of the film sticking machine 2; the cleaning mechanism 4 is arranged on the right side of the processing mechanism 3; the controller 6 is arranged at the front side of the conveyor 1, the controller 6 is respectively and electrically connected with the conveyor 1 and the film sticking machine 2, and a preset program is arranged in the controller 6; the mounting frame 7 is arranged at the rear sides of the conveyor 1, the film sticking machine 2, the processing mechanism 3 and the cleaning mechanism 4 along the left-right direction; the transport module 8 is installed at the front side top of mounting bracket 7, transport module 8 and controller 6 electric connection, and transport module 8 is controlled by the inside program of presetting of controller 6, and transport module 8 adopts three station mechanical tongs to stretch out and draw back to snatch lead frame 100 to can drive inside three station mechanical tongs and carry out the horizontal direction and remove.
As a preferred solution, as shown in fig. 2 and 3, the processing mechanism 3 includes: the device comprises a water tank 31, an electric control valve 32, a bubble generator 33, a fixing frame 34, a horizontal movement module 35, a scissor lifting module 36, a mounting seat 37, a double-end telescopic module 38, a mounting plate 39 and a cover plate 310; the water tank 31 is arranged on the right side of the laminator 2 along the front-back direction, and a liquid discharging and cleaning device is arranged in the water tank 31; the electric control valve 32 is arranged on the front side of the outer wall of the water tank 31, the electric control valve 32 is electrically connected with the controller 6, the electric control valve 32 is controlled by a preset program in the controller 6, the electric control valve 32 can be connected with an external liquid conveying device, and the external liquid conveying device conveys organic solvent into the electric control valve 32; the bubble generator 33 is arranged on the right side of the inner cavity of the water tank 31, the electric control valve 32 and the bubble generator 33 are connected, the bubble generator 33 is connected with an external compressed gas supply device, so that compressed gas and an organic solvent are mixed to generate bubbles, and the bubbles are covered on the upper side and the lower side of the lead frame 100 to form reinforced film surfaces; the fixing frame 34 is arranged at the top of the water tank 31 and positioned at the front side of the opening above the inner cavity of the water tank 31; the horizontal movement module 35 is arranged below the fixed frame 34 along the front-rear direction, the horizontal movement module 35 is electrically connected with the controller 6, the horizontal movement module 35 is controlled by a preset program in the controller 6, and the horizontal movement module 35 can drive the scissor type lifting module 36 to horizontally move along the front-rear direction; the shear type lifting module 36 is arranged at the bottom of the moving end of the horizontal moving module 35, the shear type lifting module 36 is electrically connected with the controller 6, the shear type lifting module 36 is controlled by a preset program in the controller 6, and the shear type lifting module 36 can drive the mounting seat 37 to lift to a designated height position; the mounting seat 37 is arranged at the bottom of the lifting top end of the scissor lifting module 36; the double-end telescopic module 38 is arranged at the rear side of the mounting seat 37, the double-end telescopic module 38 is electrically connected with the controller 6, the double-end telescopic module 38 is controlled by a preset program in the controller 6, and the double-end telescopic module 38 can drive the mounting plates 39 at two sides to synchronously move inwards or outwards by adopting double-end telescopic; the number of the mounting plates 39 is two, and the two mounting plates 39 are respectively arranged on the upper side and the lower side of the telescopic end of the double-end telescopic module 38; the number of the cover plates 310 is two, the two cover plates 310 are detachably mounted on the outer sides of the upper and lower mounting plates 39, and the cover plates 310 are made of a metal material which does not react with the organic solvent.
As a preferred embodiment, as shown in fig. 4, the cleaning mechanism 4 includes: a base frame 41, a horizontal conveyor 42, a chain conveyor 43, a water tank 44, a fixed nozzle frame 45, an auxiliary cleaning assembly 5 and an air pump 46; the base frame 41 is provided on the right side of the processing mechanism 3 in the up-down direction; the horizontal conveyor 42 is arranged at the top of the base frame 41 along the left-right direction, the horizontal conveyor 42 is electrically connected with the controller 6, the horizontal conveyor 42 is controlled by a preset program in the controller 6, and the horizontal conveyor 42 adopts belt type conveying; the chain conveyor 43 is arranged at the left side of the horizontal conveyor 42, the chain conveyor 43 is electrically connected with the controller 6, the chain conveyor 43 is controlled by a preset program in the controller 6, and the chain conveyor 43 adopts chain belt type conveying; the water tank 44 is arranged at the bottom of the chain conveyor 43 along the left-right direction, and a liquid discharge device is arranged in the water tank 44 and can discharge the collected waste liquid; the fixed nozzle frame 45 is fixedly arranged in the middle of the top end of the chain conveyor 43; the auxiliary cleaning assembly 5 is installed on the right side of the top end of the chain conveyor 43; the air pump 46 is installed on the inner side of the base frame 41 through a bracket, the air pump 46 and the fixed nozzle frame 45 are connected through a pipeline, the air pump 46 is electrically connected with the controller 6, the air pump 46 is controlled by a preset program in the controller 6, and high-pressure air flow can be generated in the air pump 46.
As a preferred embodiment, as shown in fig. 5, the auxiliary cleaning assembly 5 includes: the tank body housing 51, the second mount 52, the cam plate 53, the mount lever 54, the head tube 55, the rail lever 56, the moving seat 57, the stopper pin 58, the rack lever 59, the first rail groove 510, the cam 511, the micro motor 512, the connecting rod 513, the rotating seat 514, the arc-shaped rack 515, the second rail groove 516, the rack block 517, the electric push rod 518, and the connecting frame 519; the tank body housing 51 is mounted on the right side of the top end of the chain conveyor 43 by a bracket; the second mounting seat 52 is fixedly arranged in the middle of the top end of the inner cavity of the groove body shell 51; the number of the cam plates 53 is two, the two cam plates 53 are respectively connected to the front and rear ends of the inner side of the second mounting seat 52 through pin shafts in a rotating way, the front and rear cam plates 53 are turned over for one hundred eighty degrees and are arranged in a rear side overlapping way, arc-shaped sliding grooves are formed in the outer sides of the front and rear cam plates 53, and the limiting pins 58 can drive the cam plates 53 to rotate in the process of moving up and down in the inner cavities of the arc-shaped sliding grooves in the cam plates 53; the number of the mounting rods 54 is two, the two mounting rods 54 are respectively connected to the outer sides of the axle centers of the front cam plate 53 and the rear cam plate 53 in a key way, and the front mounting rod 54 and the rear mounting rod 54 are turned over for one hundred eighty degrees and are arranged in a overlapping way; the number of the spray head pipes 55 is two, the two spray head pipes 55 are respectively arranged at the outer sides of the bottom ends of the front spray head pipe 55 and the rear spray head pipe 55, and the air pump 46 and the spray head pipes 55 are connected through pipelines; the guide rail rod 56 is installed at the inner middle of the second installation seat 52 in the up-down direction; the moving seat 57 is sleeved outside the guide rail rod 56, and the moving seat 57 can move up and down outside the guide rail rod 56; the number of the limiting pins 58 is two, and the outer sides of the two limiting pins 58 are respectively spliced with the inner sliding grooves of the front cam disc 53 and the rear cam disc 53; the rack bar 59 is provided on the top right side of the moving seat 57 in the up-down direction; the first guide rail groove 510 is arranged at the top of the inner cavity of the groove body shell 51 along the up-down direction and positioned at the right side of the second mounting seat 52, the top of the rack rod 59 is spliced with the inner cavity of the first guide rail groove 510, and the rack rod 59 can move up and down in the inner cavity of the first guide rail groove 510; the cam 511 is rotatably connected to the top of the inner cavity of the groove body shell 51 through a pin seat and is positioned on the right side of the first guide rail groove 510; the micro motor 512 is fixedly arranged at the top end of the inner cavity of the tank body shell 51, the rotating end of the micro motor 512 is fixedly connected with the axle center of the cam 511, the micro motor 512 is electrically connected with the controller 6, the micro motor 512 is controlled by a preset program in the controller 6, and the micro motor 512 can drive the cam 511 to rotate circumferentially; one end of the connecting rod 513 is rotatably connected to the rear bottom end of the cam 511 through a pin shaft; the rotating seat 514 is rotatably connected to the other end of the connecting rod 513 through a pin shaft; the number of the arc racks 515 is two, the two arc racks 515 are respectively arranged at the left side and the right side of the rotating seat 514, and the left arc rack 515 is meshed with the rack rod 59; the second guide rail groove 516 is provided at the top of the inner cavity of the groove body housing 51 in the up-down direction and is located at the right side of the cam 511; the rack block 517 is inserted into the inner cavity of the second guide rail groove 516, the right arc-shaped rack 515 is meshed with the rack block 517, the rack block 517 can move up and down in the inner cavity of the second guide rail groove 516, and the right arc-shaped rack 515 is meshed with the rack block 517 to swing in an arc-shaped manner at the gap of the rack block 517, so that the swing axle center of the rotating seat 514 is formed; the electric push rod 518 is arranged on the right side of the second guide rail groove 516 along the up-down direction, the electric push rod 518 is electrically connected with the controller 6, the electric push rod 518 is controlled by a preset program in the controller 6, and the electric push rod 518 drives the connecting frame 519 to move up and down through self extension and shortening; the connecting frame 519 is arranged at the bottom of the telescopic end of the electric push rod 518, and the connecting frame 519 is fixedly connected with the top of the rack bar 517.
The working principle is as follows:
step 1: the controller 6 is internally provided with a program to control the starting of the conveyor 1, the carrying module 8 and the laminator 2, the conveyor 1 conveys the lead frame 100 to a designated position, the carrying module 8 drives an internal mechanical gripper to grasp the lead frame 100 and carry the lead frame 100 to an internal processing position of the laminator 2, the laminator 2 carries out double-sided lamination operation on the lead frame 100 on an internal processing position of the laminator, the carrying module 8 drives the internal mechanical gripper to grasp the coated lead frame 100 and carry the lead frame 100 below the fixed frame 34, a worker is connected with an electric control valve 32 and an external liquid conveying device in advance, a cover plate 310 with an adaptive shape is arranged on the inner sides of mounting plates 39 on the upper side and the lower side according to the corresponding shape of the lead frame 100, the controller 6 is internally provided with a program to control the scissor lifting module 36, the horizontal movement module 35, the double-end telescopic module 38 and the electric control valve 32 to start, the scissor type lifting module 36 drives the mounting seat 37 to descend to a designated height position, the horizontal moving module 35 drives the mounting seat 37 to move to the rear side, the mounting seat 37 drives the upper cover plate 310 and the lower cover plate 310 to move to the upper side and the lower side of the lead frame 100, the carrying module 8 is matched to release the fixation of the lead frame 100, the lead frame 100 is placed on the surface of the bottom cover plate 310, the double-end telescopic module 38 drives the upper cover plate 39 and the lower cover plate 39 to drive the upper cover plate 310 and the lower cover plate to be attached to the upper side and the lower side of the lead frame 100, the upper lead frame 100 and the lower lead frame 100 are further matched to cover the outer sides of the reinforced films of the upper structure and the lower structure of the lead frame 100, the scissor type lifting module 36 drives the mounting seat 37 to drive the lead frame 100 to enter the inner wall of the water tank 31, the electric control valve 32 opens the internal valve organic solvent to be discharged by the bubble generator 33, the organic solvent is immersed in the surface of the lead frame 100, the bubble generator 33 generates bubbles by mixing with external compressed gas to cover the surfaces of the structural reinforcing films on the upper and lower sides of the lead frame 100, the structural reinforcing films outside the structural gaps of the lead frame 100 are dissolved by an organic solvent, and the structural reinforcing films on the surface of the lead frame 100 are kept when being shielded by the cover plate 310, so that the surfaces on both sides of the lead frame 100 are covered with the structural reinforcing films which are adaptive to the shape of the lead frame;
step 2: the double-end telescopic module 38 drives the upper and lower side mounting plates 39 to enable the cover plates 310 to release the fixation of the outer sides of the lead frames 100, the carrying module 8 drives the inner mechanical grippers to cooperate to grasp and carry the lead frames 100 to the left side position of the top of the chain conveyor 43, a program is preset in the controller 6 to control the chain conveyor 43, the air pump 46, the micro motor 512, the electric push rod 518 and the horizontal conveyor 42 to start, the chain conveyor belt is driven by the motor in the chain conveyor 43 to move the lead frames 100 to the lower side of the fixed nozzle frame 45, the high-pressure air flow generated in the air pump 46 is sprayed by the fixed nozzle frame 45 to clean the surfaces of the lead frames 100, the cleaned sundry liquid enters the water tank 44 to be stored through the chain in the chain conveyor 43, the chain conveyor 43 drives the lead frames 100 to move to the lower side of the tank body housing 51, the high-pressure air flow generated in the air pump 46 is sprayed out by the spray head pipe 55 to clean the surface of the lead frame 100, the micro motor 512 drives the cam 511 to circumferentially rotate, the cam 511 drives the top end of the connecting rod 513 to circumferentially move, the connecting rod 513 drives the rotating seat 514, the rotating seat 514 swings up and down around the meshing position of the right arc-shaped rack 515 and the rack block 517, the rotating seat 514 drives the left arc-shaped rack 515 to vertically reciprocate in an arc manner, the rack rod 59 reciprocates up and down in the inner cavity of the first guide rail groove 510 under the action of the left arc-shaped rack 515, the moving seat 57 is driven by the rack rod 59 to vertically reciprocate under the limiting action of the guide rail rod 56, the limiting pins 58 on the front side and the rear side of the moving seat 57 are driven by the moving seat 57 to vertically reciprocate in the inner cavities of the cam discs 53 on the two sides, the cam discs 53 drive the mounting rod 54 to intermittently swing clockwise or anticlockwise direction of the spray head pipe 55, the rack block 517 is extended by itself to shorten and drive the connecting frame 519 to move up and down, so that the connecting frame 519 drives the rack block 517 to move to a designated position in the inner cavity of the second guide rail groove 516, and then the meshing position of the rack block 517 and the right arc rack 515 is changed, so as to adjust the swinging position of the rotating seat 514, and further the distance that the rack rod 59 drives the moving seat 57 to drive the limiting pin 58 to reciprocate up and down is changed, and then the swinging amplitude of the spray head pipe 55 is changed under the cooperation of the cam disc 53 and the mounting rod 54, and the cleaned lead frame 100 is moved to the surface of the horizontal conveyor 42 and is conveyed to the outside through the horizontal conveyor 42;
therefore, the conductive performance of the lead frame 100 is guaranteed, and meanwhile, the surface of the lead frame 100 is covered with the polymer material film, so that extra support and protection of the lead frame 100 are provided, the strength and stability of the structure of the lead frame 100 are further enhanced, a film covering device for performing shape adaptation on the lead frame 100 more quickly and efficiently is provided, and the film covering efficiency of the lead frame 100 is improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A film laminating device for an anti-deformation lead frame, comprising: a lead frame (100) and a structural reinforcement film (200); the structure reinforcing film (200) is formed by covering the upper side and the lower side of the lead frame (100) with an upper layer and a lower layer, the structure reinforcing film (200) is matched with the shape of the lead frame (100), and the structure reinforcing film (200) is subjected to film covering operation on the lead frame (100) through a rapid film covering device;
the quick tectorial membrane device includes:
a conveyor (1);
the film sticking machine (2) is arranged on the right side of the conveyor (1);
the processing mechanism (3) is arranged on the right side of the film sticking machine (2);
the cleaning mechanism (4) is arranged on the right side of the processing mechanism (3);
the controller (6) is arranged at the front side of the conveyor (1), and the controller (6) is electrically connected with the conveyor (1) and the film sticking machine (2) respectively;
the mounting frame (7) is arranged at the rear sides of the conveyor (1), the film sticking machine (2), the processing mechanism (3) and the cleaning mechanism (4) along the left-right direction;
the carrying module (8) is arranged at the top of the front side of the mounting frame (7), and the carrying module (8) is electrically connected with the controller (6);
the structural reinforcement film includes: an adhesion layer (201), a structural layer (202), a heat conduction layer (203) and a protection layer (204);
the adhesion layer (201) is directly adhered to the surface of the lead frame (100), so that better bonding strength can be provided, and the whole structure reinforcing film is firmly adhered to the outside of the lead frame (100);
the structure layer (202) is arranged outside the adhesion layer (201), the structure layer (202) is made of a high polymer material, and can effectively increase the overall strength of the lead frame (100) without affecting the conductivity of the lead frame (100), bear part of stress, lighten the load of the lead frame (100) and improve the durability and deformation resistance of the lead frame;
the heat conducting layer (203) is arranged outside the structural layer (202), and the heat conducting layer (203) has high heat conductivity coefficient, can assist in guiding heat from the lead frame (100) to the inside of the structural reinforcing film and is transmitted to the external environment through the structural reinforcing film;
the protective layer (204) is arranged outside the heat conducting layer (203), the protective layer (204) provides additional corrosion and oxidation protection, and the service lives of the structure reinforcing film and the lead frame (100) are prolonged;
the processing mechanism (3) comprises:
a water tank (31) arranged on the right side of the laminator (2) along the front-rear direction;
the electric control valve (32) is arranged at the front side of the outer wall of the water tank (31), and the electric control valve (32) is electrically connected with the controller (6);
the bubble generator (33) is arranged on the right side of the inner cavity of the water tank (31), and the electric control valve (32) and the bubble generator (33) are connected;
the fixing frame (34) is arranged at the top of the water tank (31) and positioned at the front side of the opening above the inner cavity of the water tank (31);
the horizontal movement module (35) is arranged below the fixing frame (34) along the front-back direction, and the horizontal movement module (35) is electrically connected with the controller (6);
the shear type lifting module (36) is arranged at the bottom of the moving end of the horizontal moving module (35), and the shear type lifting module (36) is electrically connected with the controller (6);
the mounting seat (37) is arranged at the bottom of the lifting top end of the scissor lifting module (36);
the double-end telescopic module (38) is arranged at the rear side of the mounting seat (37), and the double-end telescopic module (38) is electrically connected with the controller (6);
the number of the mounting plates (39) is two, and the two mounting plates (39) are respectively arranged on the upper side and the lower side of the telescopic end of the double-end telescopic module (38);
the cover plates (310) are two in number, and the two cover plates (310) are detachably arranged on the outer sides of the upper mounting plate (39) and the lower mounting plate (39) respectively;
the cleaning mechanism (4) includes:
a base frame (41) which is provided on the right side of the processing mechanism (3) in the up-down direction;
the horizontal conveyor (42) is arranged at the top of the base frame (41) along the left-right direction, and the horizontal conveyor (42) is electrically connected with the controller (6);
the chain conveyor (43) is arranged at the left side of the horizontal conveyor (42), and the horizontal conveyor (42) is electrically connected with the controller (6);
a water tank (44) provided at the bottom of the chain conveyor (43) in the left-right direction;
the fixed nozzle frame (45) is fixedly arranged in the middle of the top end of the chain conveyor (43);
an auxiliary cleaning assembly (5) mounted on the right side of the top end of the chain conveyor (43);
the air pump (46) is arranged on the inner side of the base frame (41) through a bracket, the air pump (46) is connected with the fixed nozzle frame (45) through a pipeline, and the air pump (46) is electrically connected with the controller (6);
the auxiliary cleaning assembly (5) comprises:
the tank body shell (51) is arranged on the right side of the top end of the chain conveyor (43) through a bracket;
the second mounting seat (52) is fixedly arranged in the middle of the top end of the inner cavity of the groove body shell (51);
the two cam discs (53) are respectively connected to the front end and the rear end of the inner side of the second mounting seat (52) through pin shafts in a rotating way, the front cam disc (53) and the rear cam disc (53) are turned for one hundred eighty degrees and are arranged in a overlapping way, and arc-shaped sliding grooves are formed in the outer sides of the front cam disc (53) and the rear cam disc (53);
the two mounting rods (54) are arranged, the two mounting rods (54) are respectively connected to the outer sides of the axes of the front cam disc and the rear cam disc (53) in a key manner, and the front mounting rod and the rear mounting rod (54) are turned for one hundred eighty degrees and then are arranged in a overlapping manner;
the two spray head pipes (55) are arranged, the two spray head pipes (55) are respectively arranged at the outer sides of the bottom ends of the front spray head pipe (55) and the rear spray head pipe (55), and the air pump (46) and the spray head pipes (55) are connected through pipelines;
a guide rail rod (56) which is installed in the middle of the inner side of the second installation seat (52) along the up-down direction;
a moving seat (57) sleeved outside the guide rail rod (56);
the two limiting pins (58) are arranged, and the outer sides of the two limiting pins (58) are respectively spliced with the inner sliding grooves of the front cam disc (53) and the rear cam disc (53);
a rack bar (59) provided on the right side of the top end of the movable seat (57) in the up-down direction;
the first guide rail groove (510) is arranged at the top of the inner cavity of the groove body shell (51) along the up-down direction and is positioned at the right side of the second mounting seat (52), and the top of the rack rod (59) is spliced with the inner cavity of the first guide rail groove (510);
the cam (511) is rotationally connected to the top of the inner cavity of the groove body shell (51) through a pin shaft seat and is positioned on the right side of the first guide rail groove (510);
the miniature motor (512) is fixedly arranged at the top end of the inner cavity of the groove body shell (51), the rotating end of the miniature motor (512) is fixedly connected with the axle center of the cam (511), and the miniature motor (512) is electrically connected with the controller (6);
one end of the connecting rod (513) is rotatably connected to the bottom end of the rear side of the cam (511) through a pin shaft;
the rotating seat (514) is rotationally connected to the other end of the connecting rod (513) through a pin shaft;
the number of the arc-shaped racks (515) is two, the two arc-shaped racks (515) are respectively arranged at the left side and the right side of the rotating seat (514), and the arc-shaped racks (515) at the left side are meshed with the rack rod (59);
the second guide rail groove (516) is arranged at the top of the inner cavity of the groove body shell (51) along the up-down direction and is positioned at the right side of the cam (511);
the rack block (517) is inserted into the inner cavity of the second guide rail groove (516), and the arc-shaped rack (515) on the right side is meshed with the rack block (517);
the electric push rod (518) is arranged on the right side of the second guide rail groove (516) along the up-down direction, and the electric push rod (518) is electrically connected with the controller (6);
the connecting frame (519) is arranged at the bottom of the telescopic end of the electric push rod (518), and the connecting frame (519) is fixedly connected with the top of the rack block (517).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298402.XA CN117059527B (en) | 2023-10-09 | 2023-10-09 | Film covering device of anti-deformation lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298402.XA CN117059527B (en) | 2023-10-09 | 2023-10-09 | Film covering device of anti-deformation lead frame |
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| Publication Number | Publication Date |
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| CN117059527A CN117059527A (en) | 2023-11-14 |
| CN117059527B true CN117059527B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311298402.XA Active CN117059527B (en) | 2023-10-09 | 2023-10-09 | Film covering device of anti-deformation lead frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117894686A (en) * | 2023-11-23 | 2024-04-16 | 天水华洋电子科技股份有限公司 | Process for quickly attaching dry film to integrated electroplating etching lead frame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0846125A (en) * | 1994-07-29 | 1996-02-16 | Nippon Steel Corp | Lead frame |
| JPH11307715A (en) * | 1998-04-21 | 1999-11-05 | Sumitomo Metal Mining Co Ltd | Apparatus for pasting tape to multi-stage lead frame |
| CN208835028U (en) * | 2018-11-08 | 2019-05-07 | 上海海展自动化设备有限公司 | A kind of lead frame film sticking apparatus |
| CN114171393A (en) * | 2021-12-08 | 2022-03-11 | 天水华洋电子科技股份有限公司 | Film pasting device for producing integrated circuit lead frame and film pasting method thereof |
| CN116646278A (en) * | 2023-05-29 | 2023-08-25 | 天水华洋电子科技股份有限公司 | Lead frame roll-type etching equipment |
-
2023
- 2023-10-09 CN CN202311298402.XA patent/CN117059527B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0846125A (en) * | 1994-07-29 | 1996-02-16 | Nippon Steel Corp | Lead frame |
| JPH11307715A (en) * | 1998-04-21 | 1999-11-05 | Sumitomo Metal Mining Co Ltd | Apparatus for pasting tape to multi-stage lead frame |
| CN208835028U (en) * | 2018-11-08 | 2019-05-07 | 上海海展自动化设备有限公司 | A kind of lead frame film sticking apparatus |
| CN114171393A (en) * | 2021-12-08 | 2022-03-11 | 天水华洋电子科技股份有限公司 | Film pasting device for producing integrated circuit lead frame and film pasting method thereof |
| CN116646278A (en) * | 2023-05-29 | 2023-08-25 | 天水华洋电子科技股份有限公司 | Lead frame roll-type etching equipment |
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| CN117059527A (en) | 2023-11-14 |
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