CN114361140A - LED lamp bead manufactured by cup-shaped support and manufacturing method thereof - Google Patents
LED lamp bead manufactured by cup-shaped support and manufacturing method thereof Download PDFInfo
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- CN114361140A CN114361140A CN202011128012.4A CN202011128012A CN114361140A CN 114361140 A CN114361140 A CN 114361140A CN 202011128012 A CN202011128012 A CN 202011128012A CN 114361140 A CN114361140 A CN 114361140A
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- support
- metal
- lamp bead
- cup
- led
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- 239000011324 bead Substances 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 85
- 229910052751 metal Inorganic materials 0.000 claims abstract description 85
- 238000003466 welding Methods 0.000 claims abstract description 47
- 238000004806 packaging method and process Methods 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 238000004021 metal welding Methods 0.000 claims description 27
- 239000003292 glue Substances 0.000 claims description 18
- 229910000679 solder Inorganic materials 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000005476 soldering Methods 0.000 abstract description 4
- 239000011049 pearl Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Abstract
The invention relates to an LED lamp bead manufactured by a cup-shaped support and a manufacturing method thereof, in particular to the LED lamp bead manufactured by packaging a chip by an LED support, wherein the support of the LED lamp bead is an LED support formed by embedding metal in resin, at least three sides of the bottom surface of the support of the LED lamp bead are provided with a plurality of welding feet, and the total number of the welding feet on the support is b: b is more than or equal to 4 and less than or equal to 16, the welding feet are exposed from the side surface of the support, metal contacts are further extended from the side surface of the support and used for testing and sorting the lamp beads, the LED support is used for packaging and manufacturing small-size lamp beads with low cost, and the small-size lamp beads are not easy to be connected with tin and are not easy to be subjected to insufficient soldering during welding and use.
Description
Technical Field
The invention relates to the field of LED lamp beads and application thereof, in particular to an LED lamp bead manufactured by a cup-shaped support and a manufacturing method thereof.
Background
The lamp pearl of a plurality of feet of prior art, for example, 6 foot lamp pearls that RGB lamp pearl was used, 6 feet are respectively on two limits of lamp pearl, the three foot in a limit, the problem of existence is as follows:
the lamp beads are welded on the circuit board when the three pins on one side are used, particularly when the lamp beads are welded on a flexible circuit board, one of the pins is easy to be subjected to insufficient soldering, the density of the pins is high, the short circuit of tin is easy to be connected, and the density of the pins after the insufficient soldering is high, and the short circuit of tin is easy to be connected when the maintenance is carried out.
Secondly, three pins which need to be conducted on each side of the lamp bead are required to ensure that insufficient solder joint is generated during welding and the lamp bead is convenient to maintain and needs to be bent into a three-dimensional multi-surface solder pin, so that when the lamp bead is used as a planar single-surface solder pin, the yield is low during welding, particularly the insufficient solder joint of the middle solder pin is serious, many enterprises in the industry have six flat solder pins on two sides, and three flat solder pins on two sides all fail due to the above problems, so that six pins currently made in the industry are three-dimensional multi-surface solder pins on two sides and three pins on one side, and why the lamp bead is required to be made as a flat solder pin? The main reason is that when the flat welding foot is made, because no metal is bent and more metal is needed, the utilization rate of the material for manufacturing the lamp bead support is improved by more than 25%, the flat welding foot support is also thinner than the bent support by more than 40%, the total cost can be saved by 30%, and the support is thin, and when the lamp bead is packaged by the support, the packaging glue can be saved by 50%.
And thirdly, 6 pins are distributed on two edges, when the size of the LED lamp bead is smaller, the density of the welding pins is higher, the tin connection short circuit is easier, and the small-size lamp bead is more difficult to use.
In order to solve the problem which is not solved in the industry all the time, the LED lamp bead can be made small, the cost is reduced, and a good using effect can be achieved, the invention adopts the following method to manufacture the LED lamp bead manufactured by the cup-shaped bracket, and overcomes the technology:
the method comprises making lamp beads with a support having multiple welding feet on its multiple sides, designing and making the lamp bead support with multiple welding feet on three or more sides of the bottom surface of the support, exposing metal on the side surface of the support, designing and making metal contacts on one or more side surfaces of the support, exposing the metal contacts from the side surface of the support, making the metal of the metal contacts in the support be in conductive connection with the welding feet, arranging multiple metal electrodes in the support cup for packaging chips, respectively making the metal electrodes be in conductive connection with the welding feet outside the support, respectively making multiple chips be in die bonding on the metal electrodes in the support cup, respectively making each of the multiple chips be in conductive connection with the electrodes on the support after wire bonding by a wire bonding machine, applying packaging glue on the support, sealing the chips and the electrodes, heating to solidify the glue, a plurality of RGB lamp pearls are become with the split machine split, the leg that the chip in the LED lamp pearl of making exposes with three side at least forms and switches on, then light on the beam splitter and detect the separation, during the detection, the detector presss from both sides two sides of surveying the lamp pearl, press from both sides a plurality of electrodes of surveying the machine and touch the leg that these two sides expose and the metal contact that these two sides expose simultaneously, make LED light and detect the separation, make the LED lamp pearl that a plurality of limits all have the leg after the separation, the leg that makes LED lamp pearl with this method distributes on at least three side, still can survey the machine test lamp pearl of pressing from both sides with pressing from both sides, and the leg distributes at least trilaterally or more than trilaterally, difficult continuous tin during soldering tin, can do low-cost small-size lamp pearl.
Disclosure of Invention
The invention relates to an LED lamp bead manufactured by a cup-shaped support and a manufacturing method thereof, in particular to an LED lamp bead manufactured by embedding metal in resin, wherein the support of the lamp bead is an LED support, a plurality of welding feet are arranged on a plurality of edges of the bottom surface of the LED lamp bead support, and the total number b of the welding feet on the support is as follows: b is more than or equal to 4 and less than or equal to 16, the welding leg is exposed out of the side surface of the support, and a metal contact is further extended from the side surface of the support and used for testing and sorting the lamp beads.
The invention provides a method for manufacturing an LED lamp bead by using a cup-shaped support, in particular to an LED lamp bead which is manufactured by packaging an LED chip in the support, the support is an LED support formed by embedding metal in resin, the bottom surface of the LED support is provided with a side, a is more than or equal to 4 and less than or equal to 8, the support is provided with b metal welding feet, b is more than or equal to 4 and less than or equal to 16, the support is provided with c side surfaces, c is more than or equal to 4 and less than or equal to 8, the metal welding feet are exposed out of the bottom surface, part or all the metal welding feet are exposed out of the side surface of the support, the welding feet exposed out of the side surface of the support are distributed on d sides of the bottom surface, d is more than or equal to 3 and less than or equal to d and less than or equal to a, e metal contacts are extended from the side surface of the support, e is more than or equal to 2 and less than or equal to 16, on the support, a part of the metal welding feet are connected to form conduction, the support is a cup-shaped support, f metal electrodes are arranged in a cup, f is more than or equal to 4 and less than or equal to 16, wherein a part of metal electrodes are connected with metal welding pins to form conduction, or all the metal electrodes are connected with the metal welding pins to form conduction, and the metal electrodes are at least connected with the welding pins exposed on 3 side surfaces, the single support is spliced into a plurality of connected sheet supports, a plurality of chips are respectively fixed on the metal electrodes in the support cups in a crystal mode, after wire bonding is carried out by a wire bonding machine, each chip of the plurality of chips is respectively connected with the electrodes on the support in a conduction mode, packaging glue is applied to the support cups, the chips and the electrodes are sealed, the packaging glue is heated to be solidified, the packaging glue is split into a plurality of LED lamp beads by a splitting machine, then the LED lamp beads are lightened on a light splitting machine for detection and sorting, during detection, the two side surfaces of the lamp beads are clamped by the detector, the electrodes of the clamping machine simultaneously touch the welding pins exposed on the two side surfaces and the metal contacts exposed on the two side surfaces, and (4) lighting the LEDs for detection and sorting, and manufacturing the LED lamp beads with welding feet on a plurality of sides after sorting.
According to the invention, the invention also provides an LED lamp bead manufactured by the cup-shaped bracket, which comprises: an LED support; an LED chip; packaging glue; the LED lamp bead is characterized in that the LED lamp bead is made by packaging an LED chip in an LED support, the support is an LED support formed by embedding metal in resin, a sides are arranged on the bottom surface of the LED support, a is not less than 4 and not more than 8, b metal welding feet are arranged on the support, b is not less than 4 and not more than 16, c side surfaces are arranged on the support, c is not less than 4 and not more than 8, the metal welding feet are exposed out of the bottom surface, part or all of the metal welding feet are exposed out of the side surfaces of the support, the welding feet exposed out of the side surfaces of the support are distributed on d sides of the bottom surface, d is not less than 3 and not more than d and not more than a, e metal contacts are further extended from the side surfaces of the support, e is not less than 2 and not more than 16, on the support, a part of the metal contacts are connected with the metal welding feet to form conduction, or all the metal contacts are connected with the metal welding feet to form conduction, the support is a cup-shaped support, f metal electrodes are arranged in the cup, f is not less than 4 and not more than 16, and one part of the metal electrodes are connected with the metal welding feet to form conduction, or all the metal electrodes are connected with the metal welding feet to form conduction, the chips are fixed on the metal electrodes in the support cup in a crystal mode, each chip of the chips is respectively communicated with the metal electrodes on the support, the packaging glue is bonded in the support cup and seals the chips and the metal electrodes, and at least 3 welding feet exposed from the side faces of the LED lamp beads are communicated with the chips.
According to a preferred embodiment of the invention, the LED lamp bead made of the cup-shaped support is characterized in that the welding leg is a three-dimensional rolling leg welding leg, and the welding leg extends out of the side surface of the lamp bead and is rolled and pasted on the outer surfaces of the side surface and the bottom surface.
According to a preferred embodiment of the invention, the LED lamp bead made of the cup-shaped support is characterized in that the solder leg is a planar solder leg exposed on the bottom surface.
According to a preferred embodiment of the invention, the LED lamp bead made of the cup-shaped support is characterized in that the metal contact is only used for detecting contact conduction when the sorted lamp bead is inspected, and the metal contact for detection is conducted with a welding pin of the lamp bead and is also conducted with a chip.
According to a preferred embodiment of the invention, the LED lamp bead made of the cup-shaped support is characterized in that the metal contacts are arranged on two opposite side surfaces of the lamp bead and exposed, the two side surfaces are provided with the metal contacts, each side surface is provided with the metal contact and a welding leg, and the metal contacts and the welding legs on the two side surfaces are used for detecting the lamp bead simultaneously when the lamp bead is detected.
According to a preferred embodiment of the invention, the LED lamp bead made of the cup-shaped support is characterized in that the metal contact is arranged on one side surface of the lamp bead and exposed outwards, the side surface with the metal contact is provided with both the metal contact and the solder leg, or only the metal contact is provided, and the metal contact and the solder leg on two opposite side surfaces are used for detecting the lamp bead simultaneously when the lamp bead is detected.
The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below.
Drawings
The features, objects, and advantages of the present invention will become more apparent from the description set forth below when taken in conjunction with the drawings, a brief description of which follows.
FIG. 1 is a schematic circuit plan view of a cup shaped holder with solder fillets on four sides.
Fig. 2 is a top plan view of a cup shaped holder with fillets on four sides.
FIG. 3 is a bottom plan view of a cup shaped holder with fillets on four sides.
Fig. 4 is a schematic cross-sectional view of a cup shaped holder with fillets on four sides.
FIG. 5 is a schematic view of the upper and lower equiangular axes of a cup shaped holder having fillets on four sides.
Fig. 6 is a plan view of a plurality of holder cups of a cup holder having fillets on four sides.
FIG. 7 is a top view of a plurality of frame cups of a cup shaped frame with fillets on four sides for die bonding wires.
FIG. 8 is a schematic cross-sectional view of an LED lamp bead with fillets on multiple sides.
Fig. 9 is a schematic top view of an LED lamp bead with fillets on multiple sides.
Detailed Description
The present invention will be described in detail below by taking preferred embodiments as examples.
It will be understood by those skilled in the art that the following descriptions are provided for purposes of illustration and description of certain preferred embodiments only and are not intended to limit the scope of the present invention.
Example one
Manufacturing of die cutting die
The 2835LED support that contains 6 feet, the cuboid support of 2.8mmx3.5mm of design preparation respectively in wide 2.8 mm's two limits design a leg 1.1 and two metal contact 1.2, two other limits respectively design two legs 1.1, 6 total legs 1.1 and 4 metal contact 1.2.
Two, die-cut support circuit rudiment
Preparing a 0.20mm copper strip, punching the 0.20mm copper strip 1.1 into a support circuit prototype on a punch press by using a punching die, and electroplating silver on the support circuit prototype to plate a layer of silver on the surface of the copper strip.
Preparation of PPA resin
PPA resin 2.1 is injected on the copper strip by an injection mould on an injection molding machine to form a plurality of bracket cups, and the copper prototype circuit is embedded in the PPA resin.
Fourthly, 6 welding feet are made by punching the bracket
A connecting piece support containing a plurality of LED supports is manufactured by die cutting, each support is provided with 6 welding feet 1.1, and 4 testing metal contacts 1.2, two sides of 2.8mm are respectively provided with one welding foot 1.1 and two sides of 2 testing metal contacts 1.2, 3.5mm are respectively provided with two welding feet 1.1. Six metal electrodes are arranged in the support cup and are respectively connected and conducted with six welding feet on the outer bottom surface of the support, and four metal contacts are connected and conducted with four metal electrodes in the cup to manufacture the cup-shaped support with the welding feet on four sides (shown in figures 1, 2, 3, 4, 5 and 6).
Fifth, packaging LED lamp bead
Firstly, die bonding
Fixing red, green and blue chips 3.1 on three electrodes in the cup by a crystal fixing machine, fixing a red chip on one electrode in the cup by silver glue, fixing blue and green chips on the other two electrodes by crystal fixing glue, and baking to solidify the glue.
② bonding wires
The positive and negative electrodes of the three chips were connected to the metal electrodes of the cup bottom by welding with alloy wires 4.1, respectively, by a wire bonder (shown in fig. 7).
Thirdly, dispensing
And (5) dispensing the packaging glue 5.1 by using a dispenser in the cup, and baking to solidify the packaging glue.
Peeling material
The LED lamp beads with welding feet on multiple sides are manufactured by splitting the single RGB lamp beads on a splitting machine by using a mold (shown in figures 8 and 9).
Spectroscopic detection
On 2835 RGB's press from both sides survey beam splitter, through pressing from both sides four metal contact and two fillets of surveying two limits, these four metal contact have communicated four fillets on 3.5 mm's two limits respectively, have also communicated the electrode of chip, press from both sides to survey to divide and select LED lamp pearl of a plurality of categories to divide and to divide a plurality of boxes in, dispose the defective products simultaneously.
Sixthly, packaging
And (4) weaving the LED lamp beads on the packaging tape by using a braiding machine.
The invention is described in detail with reference to the accompanying drawings by using a specific embodiment of an LED lamp bead manufactured by a cup-shaped bracket and a manufacturing method thereof. It will be understood by those skilled in the art, however, that the foregoing is merely illustrative and descriptive of some specific embodiments and is not to be construed as limiting the scope of the invention, especially the scope of the claims.
Claims (7)
1. A manufacturing method of an LED lamp bead manufactured by a cup-shaped support is characterized in that the LED lamp bead is manufactured by packaging an LED chip in the support, the support is an LED support formed by embedding metal in resin, a sides are arranged on the bottom surface of the LED support, a is not less than 4 and not more than 8, b metal welding feet are arranged on the support, b is not less than 4 and not more than 16, the support is provided with c side surfaces, c is not less than 4 and not more than 8, the metal welding feet are exposed out of the bottom surface, part or all of the metal welding feet are exposed out of the side surfaces of the support, the welding feet exposed out of the side surfaces of the support are distributed on d sides of the bottom surface, d is not less than 3 and not more than a, e metal contacts are further extended from the side surfaces of the support, e is not less than 2 and not more than 16, on the support, a part of the metal contacts are connected with the metal welding feet to form conduction, or all the metal contacts are connected with the metal welding feet to form conduction, the support is a cup-shaped support, f metal electrodes are arranged in a cup, f is more than or equal to 4 and less than or equal to 16, wherein a part of metal electrodes are connected with metal welding pins to form conduction, or all the metal electrodes are connected with the metal welding pins to form conduction, and the metal electrodes are at least connected with the welding pins exposed on 3 side surfaces, the single support is spliced into a plurality of connected sheet supports, a plurality of chips are respectively fixed on the metal electrodes in the support cups in a crystal mode, after wire bonding is carried out by a wire bonding machine, each chip of the plurality of chips is respectively connected with the electrodes on the support in a conduction mode, packaging glue is applied to the support cups, the chips and the electrodes are sealed, the packaging glue is heated to be solidified, the packaging glue is split into a plurality of LED lamp beads by a splitting machine, then the LED lamp beads are lightened on a light splitting machine for detection and sorting, during detection, the two side surfaces of the lamp beads are clamped by the detector, the electrodes of the clamping machine simultaneously touch the welding pins exposed on the two side surfaces and the metal contacts exposed on the two side surfaces, make LED light and detect and select separately, make the LED lamp pearl that a plurality of limits all have the leg after selecting separately, LED lamp pearl in the chip at least with set up the leg that exposes in three side form and switch on.
2. An LED lamp pearl of cup support preparation includes:
an LED support;
an LED chip;
packaging glue;
the LED lamp is characterized in that the LED lamp bead is made by packaging an LED chip in an LED support, the LED support is an LED support formed by embedding metal in resin, a sides are arranged on the bottom surface of the LED support, a is not less than 4 and not more than 8, b metal welding feet are arranged on the support, b is not less than 4 and not more than 16, c side surfaces are arranged on the support, c is not less than 4 and not more than 8, the metal welding feet are exposed on the bottom surface, part or all of the metal welding feet are exposed from the side surfaces of the support, the welding feet exposed from the side surfaces of the support are distributed on d sides of the bottom surface, d is not less than 3 and not more than d and not more than a, e metal contacts are further extended from the side surfaces of the support, e is not less than 2 and not more than 16, on the support, a part of the metal contacts are connected with the metal welding feet to form conduction, or all the metal contacts are connected with the metal welding feet to form conduction, the support is a cup-shaped support, f metal electrodes are arranged in the cup, f is not less than 4 and not more than 16, and a part of the metal electrodes are connected with the metal welding feet to form conduction, or all the metal electrodes are connected with the metal welding feet to form conduction, the chips are fixed on the metal electrodes in the support cup in a crystal mode, each chip of the chips is respectively communicated with the metal electrodes on the support, the packaging glue is bonded in the support cup and seals the chips and the metal electrodes, and at least 3 welding feet exposed from the side faces of the LED lamp beads are communicated with the chips.
3. The LED lamp bead made of the cup-shaped bracket according to claim 1 or 2, wherein the welding leg is a three-dimensional roll leg welding leg, and the welding leg extends out of the side surface of the lamp bead and is rolled and attached to the outer surfaces of the side surface and the bottom surface.
4. The cup-shaped support manufactured LED lamp bead according to claim 1 or 2, wherein the solder leg is a planar solder leg exposed on the bottom surface.
5. The LED lamp bead made of the cup-shaped support according to claim 1 or 2, wherein the metal contact is only used for detecting contact conduction when the sorting lamp bead is detected, and the metal contact for detection is conducted with a welding pin of the lamp bead and is also conducted with a chip.
6. The LED lamp bead made of the cup-shaped bracket according to claim 1 or 2, wherein the metal contacts are arranged on two opposite sides of the lamp bead and exposed, two sides with the metal contacts are arranged on the two opposite sides, each side is provided with the metal contact and a welding leg, and the metal contacts and the welding legs on the two sides are used for detecting the lamp bead simultaneously when the lamp bead is detected.
7. The LED lamp bead made of the cup-shaped bracket according to claim 1 or 2, wherein the metal contact is arranged on one side surface of the lamp bead and exposed outwards, the side surface with the metal contact is provided with both the metal contact and the solder leg, or only the metal contact is provided, and the metal contact and the solder leg on two opposite side surfaces are used for detecting the lamp bead simultaneously when the lamp bead is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128012.4A CN114361140A (en) | 2020-10-13 | 2020-10-13 | LED lamp bead manufactured by cup-shaped support and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128012.4A CN114361140A (en) | 2020-10-13 | 2020-10-13 | LED lamp bead manufactured by cup-shaped support and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114361140A true CN114361140A (en) | 2022-04-15 |
Family
ID=81090162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011128012.4A Pending CN114361140A (en) | 2020-10-13 | 2020-10-13 | LED lamp bead manufactured by cup-shaped support and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114361140A (en) |
-
2020
- 2020-10-13 CN CN202011128012.4A patent/CN114361140A/en active Pending
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Application publication date: 20220415 |
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| WD01 | Invention patent application deemed withdrawn after publication |