CN114373846A - RGB lamp bead with multiple welding feet and manufacturing method thereof - Google Patents

RGB lamp bead with multiple welding feet and manufacturing method thereof Download PDF

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Publication number
CN114373846A
CN114373846A CN202011128411.0A CN202011128411A CN114373846A CN 114373846 A CN114373846 A CN 114373846A CN 202011128411 A CN202011128411 A CN 202011128411A CN 114373846 A CN114373846 A CN 114373846A
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CN
China
Prior art keywords
support
welding feet
metal
rgb lamp
led
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Pending
Application number
CN202011128411.0A
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Chinese (zh)
Inventor
徐建华
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Tongling Ruichang Circuit Technology Co ltd
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Tongling Ruichang Circuit Technology Co ltd
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Publication date
Application filed by Tongling Ruichang Circuit Technology Co ltd filed Critical Tongling Ruichang Circuit Technology Co ltd
Priority to CN202011128411.0A priority Critical patent/CN114373846A/en
Publication of CN114373846A publication Critical patent/CN114373846A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/483—Containers
    • H01L33/486—Containers adapted for surface mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • F21V19/002—Fastening arrangements intended to retain light sources the fastening means engaging the encapsulation or the packaging of the semiconductor device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F21Y2113/17—Combination of light sources of different colours comprising an assembly of point-like light sources forming a single encapsulated light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Led Device Packages (AREA)

Abstract

The invention relates to an RGB lamp bead with a plurality of welding feet and a manufacturing method thereof, in particular to the RGB lamp bead which is manufactured by packaging three chips respectively emitting red light, green light and blue light in an LED bracket, wherein the bracket of the RGB lamp bead is an LED bracket formed by embedding metal in resin, a plurality of welding feet are arranged on at least three sides of the bottom surface of the bracket of the RGB lamp bead, and the total number b of the welding feet on the bracket is as follows: b is more than or equal to 6 and less than or equal to 16, the welding feet are exposed from the side surfaces of the support, at least 3 welding feet exposed from the side surfaces of the RGB lamp beads are communicated with the LED chip, the LED support is used for packaging and manufacturing the small-size RGB lamp beads with low cost, and the small-size RGB lamp beads are not easy to be connected with tin and are not easy to be subjected to insufficient soldering during welding.

Description

RGB lamp bead with multiple welding feet and manufacturing method thereof
Technical Field
The invention relates to the field of LED lamp beads and application thereof, in particular to an RGB lamp bead with a plurality of welding feet 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%.
Thirdly, 6 feet distribute on two sides, and when RGB lamp pearl size was done littleer, leg density was higher, changes the tin short circuit, leads to more difficult with small-size lamp pearl.
In order to solve the problem which is not solved in the industry all the time, the RGB 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 RGB lamp bead with a plurality of welding feet, and overcomes the technology:
the specific method is that the RGB lamp bead is a lamp bead which is made by packaging three LED chips respectively emitting red light, green light and blue light in a 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 not less than 4 and not more than 8, the support is provided with b metal welding feet, b is not less than 6 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 the metal welding feet are exposed out of the side surfaces of the support and distributed on d sides of the bottom surface, d is not less than 3 and not more than a, the support is a cup-shaped support, e metal electrodes are arranged in a cup, e is not less than 6 and not more than 16, wherein 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, and the metal electrodes are at least connected with the welding feet exposed out of 3 side surfaces to form conduction, the single support is spliced into a plurality of connected piece supports, three LED chips which respectively emit red light, green light and blue light are respectively fixed on the metal electrodes in the bracket cup, after the wire is welded by a wire bonding machine, each of the three chips is respectively communicated with the electrode on the bracket, packaging glue is applied in the bracket cup to seal the chip and the electrode, the packaging glue is solidified by heating, the packaging glue is split into a plurality of RGB lamp beads by a splitting machine, the chips in the manufactured RGB lamp beads are communicated with at least three welding feet exposed from the side surface, then the light-splitting machine is lighted for detection and sorting, during detection, the detector detects the bottom surface of the lamp bead, so that the LED is lighted for detection and sorting, and then RGB lamp beads with welding feet on a plurality of sides are manufactured after sorting, the RGB lamp bead is provided with at least 3 welding feet exposed from the side surface and is communicated with the LED chip, and the welding feet are distributed on at least three edges or more than three edges, so that the tin is not easy to be connected during tin soldering, and the lamp beads with small size and low cost can be manufactured.
Disclosure of Invention
The invention relates to an RGB lamp bead with a plurality of welding feet and a manufacturing method thereof, in particular to the RGB lamp bead which is manufactured by packaging three chips respectively emitting red light, green light and blue light in an LED bracket, wherein the bracket of the RGB lamp bead is an LED bracket formed by embedding metal in resin, a plurality of welding feet are arranged on at least three sides of the bottom surface of the bracket of the RGB lamp bead, and the total number b of the welding feet on the bracket is as follows: b is more than or equal to 6 and less than or equal to 16, the welding feet are exposed from the side surfaces of the support, at least 3 welding feet exposed from the side surfaces of the RGB lamp beads are communicated with the LED chip, the LED support is used for packaging and manufacturing the small-size RGB lamp beads with low cost, and the small-size RGB lamp beads are not easy to be connected with tin and are not easy to be subjected to insufficient soldering during welding.
The invention provides a method for manufacturing RGB lamp beads with a plurality of welding feet, in particular to a RGB lamp bead which is manufactured by packaging three LED chips respectively emitting red light, green light and blue light in a 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 6 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 of or all the metal welding feet are exposed out of the side surfaces 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 a, the support is a cup-shaped support, the cup is provided with e metal electrodes, e is more than or equal to 6 and less than or equal to 16, 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 form conduction, and at least with the welding feet exposed out of 3 side surfaces, the single support is spliced into a plurality of connected support, three LED chips emitting red light, green light and blue light are respectively fixed on a metal electrode in a support cup, after the wires are welded by a wire welding machine, each chip of the three chips is respectively communicated with the electrode on the support, packaging glue is applied in the support cup, the chips and the electrodes are sealed, the packaging glue is solidified by heating, the chips and the electrodes are split into a plurality of RGB lamp beads by a splitting machine, then the RGB lamp beads are lightened on a light splitting machine for detection and separation, during detection, the bottom surfaces of the lamp beads are detected by a detector, the LEDs are lightened for detection and separation, the RGB lamp beads with welding feet on all sides are manufactured after separation, and the RGB lamp beads are at least provided with 3 welding feet exposed from the side surfaces and are communicated with the LED chips.
According to the present invention, there is also provided an RGB lamp bead with a plurality of fillets, comprising: an LED support; three LED chips respectively emitting red light, green light and blue light; packaging glue; the LED lamp bead is characterized in that the RGB lamp bead is manufactured by packaging three chips respectively emitting red light, green light and blue light 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 6 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 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 not less than 3 and not more than a, the support is a cup-shaped support, e metal electrodes are arranged in a cup, e is not less than 6 and not more than 16, wherein 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, three LED chips respectively emitting red light, green light and blue light are fixed on metal electrodes in the cup of the support, each chip of the three chips is respectively communicated with the metal electrode on the support, the packaging adhesive is bonded in the support cup and seals the chip and the metal electrode, and the RGB lamp bead is provided with at least 3 welding feet exposed from the side surface and the LED chip.
According to a preferred embodiment of the invention, the RGB lamp bead with the plurality of welding feet is characterized in that the welding feet are three-dimensional roll-foot welding feet, and the welding feet extend out of the side surfaces of the lamp bead and are rolled and pasted on the outer surfaces of the side surfaces and the bottom surface.
According to a preferred embodiment of the invention, the RGB lamp bead with a plurality of solder feet is characterized in that the solder feet are planar solder feet exposed on the bottom surface.
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 RGB lamp bead having fillets on multiple sides.
Fig. 9 is a schematic top view of an RGB lamp bead having solder fillets on multiple edges.
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 the design of two limits of width 2.8mm weld leg 1.1, two respectively designs on two limits in addition weld leg 1.1, 6 total weld legs 1.1.
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
The connecting piece support containing a plurality of LED supports is manufactured by die cutting, each support is provided with 6 welding feet 1.1, two sides of 2.8mm are respectively provided with one welding foot 1.1, and two sides of 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 to manufacture a cup-shaped support with welding feet on four sides (shown in figures 1, 2, 3, 4, 5 and 6).
Fifth, encapsulation RGB lamp pearl
Firstly, die bonding
Three chips 3.1 which emit red light, green light and blue light are fixed on three electrodes in a bracket cup by a solid crystal machine, the red chip is fixed on one electrode in the bracket cup by silver glue, then the blue light and the green light chips are fixed on the other two electrodes by solid crystal glue, and the glue is cured by baking.
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 single RGB lamp beads are split by a mold on a splitting machine to form the RGB lamp beads with welding feet on a plurality of sides (shown in figures 8 and 9).
Spectroscopic detection
Put on the light-splitting machine in 2835 RGB lamp pearl's bottom, the bottom surface of detection lamp pearl makes the lamp pearl luminous, divides the RGB lamp pearl of selecting out a plurality of categories to divide in a plurality of boxes, clears away the defective products simultaneously.
Sixthly, packaging
And (4) weaving the RGB lamp beads on a packaging tape by using a braiding machine.
The present invention is described in detail with reference to the accompanying drawings by using a specific embodiment of a plurality of solder leg RGB lamp beads and a method for manufacturing the same. 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 (4)

1. A method for manufacturing RGB lamp beads with a plurality of welding feet is disclosed, concretely, the RGB lamp beads are manufactured by packaging three LED chips respectively emitting red light, green light and blue light in a 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 not less than 4 and not more than 8, the support is provided with b metal welding feet, b is not less than 6 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 at the bottom surface, part or all 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 a, the support is a cup-shaped support, the cup is provided with e metal electrodes, e is not less than 6 and not more than 16, wherein 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, and the metal electrodes are at least formed with the welding feet exposed at 3 side surfaces to form conduction, the single support is spliced into a plurality of connected support, three LED chips emitting red light, green light and blue light are respectively fixed on a metal electrode in a support cup, after the wires are welded by a wire welding machine, each chip of the three chips is respectively communicated with the electrode on the support, packaging glue is applied in the support cup, the chips and the electrodes are sealed, the packaging glue is solidified by heating, the chips and the electrodes are split into a plurality of RGB lamp beads by a splitting machine, then the RGB lamp beads are lightened on a light splitting machine for detection and separation, during detection, the bottom surfaces of the lamp beads are detected by a detector, the LEDs are lightened for detection and separation, the RGB lamp beads with welding feet on all sides are manufactured after separation, and the RGB lamp beads are at least provided with 3 welding feet exposed from the side surfaces and are communicated with the LED chips.
2. The utility model provides a RGB lamp pearl of a plurality of leg, includes:
an LED support;
three LED chips respectively emitting red light, green light and blue light;
packaging glue;
the LED lamp bead is characterized in that the RGB lamp bead is manufactured by packaging three chips respectively emitting red light, green light and blue light 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 6 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 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 not less than 3 and not more than a, the support is a cup-shaped support, e metal electrodes are arranged in a cup, e is not less than 6 and not more than 16, wherein 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, three LED chips respectively emitting red light, green light and blue light are fixed on metal electrodes in the cup of the support, each chip of the three chips is respectively communicated with the metal electrode on the support, the packaging adhesive is bonded in the support cup and seals the chip and the metal electrode, and the RGB lamp bead is provided with at least 3 welding feet exposed from the side surface and the LED chip.
3. The RGB lamp bead with multiple fillets of claim 1 or 2, wherein said fillets are three-dimensional roll fillets, said fillets extending laterally from said bead and being rolled over the outer surface of said lateral and bottom surfaces.
4. The RGB lamp bead with multiple fillets as claimed in claim 1 or 2, wherein said fillets are planar fillets exposed at the bottom surface.
CN202011128411.0A 2020-10-14 2020-10-14 RGB lamp bead with multiple welding feet and manufacturing method thereof Pending CN114373846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011128411.0A CN114373846A (en) 2020-10-14 2020-10-14 RGB lamp bead with multiple welding feet and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011128411.0A CN114373846A (en) 2020-10-14 2020-10-14 RGB lamp bead with multiple welding feet and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN114373846A true CN114373846A (en) 2022-04-19

Family

ID=81138297

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011128411.0A Pending CN114373846A (en) 2020-10-14 2020-10-14 RGB lamp bead with multiple welding feet and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN114373846A (en)

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