CN114464603A - Lamp strip manufactured by RGB light source and white light source and manufacturing method thereof - Google Patents

Lamp strip manufactured by RGB light source and white light source and manufacturing method thereof Download PDF

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Publication number
CN114464603A
CN114464603A CN202011175622.XA CN202011175622A CN114464603A CN 114464603 A CN114464603 A CN 114464603A CN 202011175622 A CN202011175622 A CN 202011175622A CN 114464603 A CN114464603 A CN 114464603A
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China
Prior art keywords
light source
support
rgb
metal
white light
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CN202011175622.XA
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Chinese (zh)
Inventor
代宇
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Zhongshan Guozhan Optoelectronic Technology Co ltd
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Zhongshan Guozhan Optoelectronic Technology Co ltd
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Priority to CN202011175622.XA priority Critical patent/CN114464603A/en
Publication of CN114464603A publication Critical patent/CN114464603A/en
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    • 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
    • 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
    • F21K9/90—Methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/24—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
    • 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
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • 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
    • 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
    • H01L33/52—Encapsulations
    • 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
    • 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
    • H01L2933/005—Processes relating to semiconductor body packages relating to encapsulations
    • 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)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The invention relates to a lamp strip made of RGB light source and white light source and a making method thereof, in particular to a lamp strip made of RGB light source and white light source welded on a flexible circuit board, wherein the RGB light source is made of three chips respectively emitting red light, green light and blue light packaged in a support, the support of the RGB light source is an LED support formed by embedding metal in resin, at least three sides of the bottom of the support of the RGB light source are provided with at least 6 welding feet, and the total number b of the welding feet on the support 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 surface of the support, metal contacts are further extended from the side surface of the support and used for light source testing and sorting, the support can be used for manufacturing RGB light sources with low cost, the white light source is a white light source manufactured by packaging an LED chip in the support or a CSP white light source, and the lamp strip manufactured by the RGB light source and the white light source is the lamp strip with low cost.

Description

Lamp strip manufactured by RGB light source and white light source and manufacturing method thereof
Technical Field
The invention relates to an LED lamp strip and the application field thereof, in particular to a lamp strip made of RGB light source and white light source and a making method thereof.
Background
The lamp area of RGB light source and white light source and the control element preparation of prior art preparation, the adoption be that the leg all distributes the LED light source preparation in two sides and forms, 6 foot light sources that RGB light source used, 6 feet are respectively on two limits of light source, three feet in a limit, the problem that exists as follows:
the three pins of the LED light source are respectively arranged on the same side, when the LED light source is used, the light source is welded on a circuit board, particularly a flexible circuit board, one of the pins is easy to be soldered in a faulty mode, 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 pin is soldered in a faulty mode 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 LED light source need to be welded, so that insufficient soldering is ensured during welding, the maintenance is convenient, and the pins need to be bent into three-dimensional multi-surface solder pins, so that when the pins are used as planar single-surface solder pins, the yield is low during welding, particularly, the insufficient soldering of the middle solder pin is serious, six flat solder pins on two sides are manufactured by many enterprises in the industry, and three flat solder pins on two sides fail due to the above problems, so that six pins currently manufactured in the industry are three-dimensional multi-surface solder pins on two sides and three pins on one side, and the reason why the pins are pursued to manufacture flat solder pins? 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 light source support is improved by more than 25%, and 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 light source is packaged by the support, the packaging glue can be saved by 50%.
And thirdly, 6 pins of the LED light source are distributed on two sides, when the size of the RGB light source is smaller, the density of the welding pins is higher, the short circuit of tin connection is easier, the small-size light source is more difficult, and the cost of the large-size light source for manufacturing the lamp belt can not be reduced.
And fourthly, the size of the RGB light source cannot be reduced, and the matched flexible circuit board cannot be reduced, so that the cost for manufacturing the lamp strip cannot be reduced.
In order to solve the problem which is not solved in the industry all the time, the LED light source can be made small, the circuit board can be made narrow, the cost of the lamp strip is reduced, and a good using effect can be achieved, the lamp strip manufactured by the RGB light source and the white light source is manufactured by the following method, and the technology is overcome:
the method comprises manufacturing a light source with a support having multiple sides provided with solder feet, designing and manufacturing the solder feet of the light source support having multiple solder feet on three or more sides of the bottom of the support, exposing metal on the side of the support, designing and manufacturing metal contacts on one or more sides of the support, exposing the metal contacts from the side of the support, forming conduction connection between the metal of the metal contacts and the solder feet in the support, forming multiple metal electrodes at the bottom of the support cup for packaging chips, respectively forming connection with multiple solder feet outside the support, respectively fixing three chips containing red light, green light and blue light on the metal electrodes in the support cup, respectively forming conduction between each chip and the electrode 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, lighting the light on the light splitting machine for detection and sorting, wherein during detection, the light source is clamped by the detector on two sides, a plurality of electrodes of the clamping and detecting machine simultaneously touch the exposed welding feet on the two sides and the exposed metal contacts on the two sides, so that the RGB light source is lighted for detection and sorting, and the RGB light source with welding feet on a plurality of sides is manufactured after sorting, the bracket is used for manufacturing a low-cost light source and a low-cost light source lamp belt, and when the RGB light source is manufactured, although the welding feet of the light source are distributed on three or more side surfaces, the light source can be tested by clamping two sides by using a low-cost clamping and testing machine, the white light source is a white light source or a CSP white light source which is manufactured by packaging an LED chip in a support, and the RGB light source, the white light source and the control element are welded on a flexible circuit board to manufacture the LED lamp belt with two light sources with lower cost.
Disclosure of Invention
The invention relates to a lamp strip made of RGB light source and white light source and a making method thereof, in particular to a lamp strip made of RGB light source and white light source welded on a flexible circuit board, wherein the RGB light source is made of three chips respectively emitting red light, green light and blue light packaged in a support, the support of the RGB light source is an LED support formed by embedding metal in resin, at least three sides of the bottom of the support of the RGB light source are provided with at least 6 welding feet, and the total number b of the welding feet on the support 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 surface of the support, metal contacts are further extended from the side surface of the support and used for light source testing and sorting, the support can be used for manufacturing RGB light sources with low cost, the white light source is a white light source manufactured by packaging an LED chip in the support or a CSP white light source, and the lamp strip manufactured by the RGB light source and the white light source is the lamp strip with low cost.
The invention provides an RGB light source and a method for manufacturing a lamp strip manufactured by the white light source, and particularly the lamp strip is manufactured by welding the RGB light source, the white light source or the RGB light source, the white light source and a control element on a flexible circuit board, the RGB light source is manufactured by packaging three chips respectively emitting red light, green light and blue light in an LED bracket, the bracket of the RGB light source is an LED bracket formed by embedding metal in resin, the bottom of the LED bracket is provided with a side a, 4 is not less than 8, the bracket is provided with b metal welding feet, 6 is not less than 16, the bracket is provided with c side faces, c is not less than 4 and not more than 8, the metal welding feet are exposed at the bottom, part or all of the metal welding feet are exposed from the side faces of the bracket, the welding feet exposed from the side faces of the bracket are distributed on d sides of the bottom, d is not less than 3 and not more than a, the side faces of the bracket are also extended with e metal contacts, e is not less than 2 and not more than 16, on the support, a part of metal contacts are connected with metal welding feet to form conduction, or all the metal contacts are connected with metal welding feet to form conduction, the support is a cup-shaped support, f metal electrodes are arranged in the cup, f is more than or equal to 6 and less than or equal to 16, a part of 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 arranged on 3 side surfaces, the support is designed into a connecting piece support of a plurality of supports, three chips which respectively emit red light, green light and blue light are respectively fixed on the metal electrodes in the cup of the support, after wire welding is carried out by a wire welding machine, each chip of a plurality of chips is respectively connected with the electrodes on the support, packaging glue is applied in the cup of the support to seal the chips and the electrodes, the packaging glue is solidified by heating, and is split into a plurality of RGB light sources by a splitting machine, then lightening, detecting and sorting the light on the light splitting machine, during detection, the detecting machine clamps and detects two side surfaces of the RGB light source, a plurality of electrodes of the clamping and detecting machine simultaneously touch the welding feet exposed from the two side surfaces and the metal contacts exposed from the two side surfaces, so that the RGB light source is lightened to carry out detection and sorting, the RGB light source with welding feet on a plurality of sides is manufactured after sorting, at least three chips of the manufactured RGB light source are conducted with the welding feet exposed from the three side surfaces, the white light source is a white light source or a CSP white light source manufactured by packaging an LED chip on a support, and the RGB light source, the white light source or the RGB light source, the white light source and a control element are welded on a flexible circuit board by an SMT machine to manufacture the lamp strip.
The invention also provides a lamp belt made of the RGB light source and the white light source, which comprises: RGB light source, white light source or RGB light source, white light source and control element; a flexible circuit board; the LED lamp strip is characterized in that the lamp strip is composed of an RGB light source, a white light source or RGB light source, a white light source, a control element and a flexible circuit board, the RGB light source is an RGB light source manufactured by respectively packaging three chips emitting red light, green light and blue light by using an LED support, the LED support is characterized by being an LED support formed by embedding metal in resin, the bottom 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 faces, c is more than or equal to 4 and less than or equal to 8, the metal welding feet are exposed at the bottom, part or all of the metal welding feet are exposed from the side faces of the support, the welding feet exposed from the side faces of the support are distributed on d sides of the bottom, d is more than or equal to 3 and less than or equal to a, e metal contacts extend from the side faces 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 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 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 to form conduction, three chips respectively emitting red light, green light and blue light are fixedly crystallized on the metal electrodes in the cup of the support, each chip respectively emitting red light, green light and blue light is respectively connected with the metal electrodes on the support, packaging glue is bonded in the cup of the support and seals the chips and the metal electrodes, the three chips of the RGB light source are at least connected with the welding feet exposed on 3 side faces, the white light source is a white light source or a CSP white light source manufactured by packaging the LED chips on the support, and the RGB light source, the white light source or the RGB light source, the white light source and the control element are welded on the flexible circuit board.
According to a preferred embodiment of the present invention, the lamp strip made of the RGB light source and the white light source is characterized in that the solder leg of the RGB light source is a three-dimensional roll leg solder leg, and the solder leg extends from the side surface of the RGB light source and is rolled and attached to the outer surface of the side surface and the outer surface of the bottom surface.
According to a preferred embodiment of the present invention, the lamp strip manufactured by the RGB light source and the white light source is characterized in that the solder feet of the RGB light source are planar solder feet exposed at the bottom.
According to a preferred embodiment of the present invention, the light strip manufactured by the RGB light source and the white light source is characterized in that the metal contact of the RGB light source is only used for detecting contact conduction when the sorting light source is inspected, and the metal contact for detection is not only conducted with the solder foot of the RGB light source, but also conducted with the chip.
According to a preferred embodiment of the present invention, the light strip manufactured by the RGB light source and the white light source is characterized in that the metal contacts of the RGB light source are disposed on two opposite side surfaces of the light source and exposed, the two side surfaces have the metal contacts, each side surface has the metal contact and the solder leg, and the metal contacts and the solder legs on the two side surfaces are used for detecting the light source simultaneously when detecting the light source.
According to a preferred embodiment of the present invention, the light strip manufactured by the RGB light source and the white light source is characterized in that the metal contact of the RGB light source is disposed on one side surface of the light source and exposed to the outside, the side surface having the metal contact has both the metal contact and the solder foot, or only the metal contact, and the metal contact and the solder foot on the two opposite side surfaces are used for detecting the light source at the same time.
According to a preferred embodiment of the present invention, the light strip manufactured by the RGB light source and the white light source is characterized in that a red light chip in the RGB light source is fixed on a metal electrode by using conductive silver paste, and a blue light chip and a green light chip are fixed on the metal electrode by using an insulating paste.
According to a preferred embodiment of the present invention, the light strip manufactured by the RGB light source and the white light source is characterized in that the flexible circuit board is a rigid-flexible circuit board, and the rigid-flexible circuit board is a rigid-flexible circuit board formed by bonding a hard resin on a local position of the flexible circuit board.
According to a preferred embodiment of the present invention, the lamp strip manufactured by the RGB light sources and the white light sources is characterized in that the ratio of the number of the RGB light sources to the number of the white light sources is 1: 1.
According to a preferred embodiment of the present invention, the ratio of the number of the RGB light sources to the number of the white light sources is 1: 2, wherein the white light sources are white light sources with two color temperatures.
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 cross-sectional view of an RGB light source with fillets on each side.
FIG. 9 is a top view of an RGB light source with fillets on each side.
Fig. 10 is a schematic plan view of a flexible light strip semi-finished product with RGB light sources and 2835 white light sources in a ratio of 1: 1.
Fig. 11 is a schematic plan view of a semi-finished flexible light strip with RGB light sources and 2835 white light sources in a ratio of 1: 2.
FIG. 12 is a schematic plan view of a semi-finished flexible light strip with RGB light sources and CSP white light sources in a ratio of 1: 1.
FIG. 13 is a schematic plan view of a semi-finished flexible light strip with RGB light sources and CSP white light sources in a ratio of 1: 2.
Fig. 14 is a schematic plan view of a flexible light strip with RGB light sources and 2835 white light sources in a ratio of 1: 1.
Fig. 15 is a schematic plan view of a flexible light strip with RGB light sources and 2835 white light sources in a ratio of 1: 2.
Fig. 16 is a schematic plan view of a flexible light strip with RGB light sources and CSP white light sources in a ratio of 1: 1.
FIG. 17 is a schematic plan view of a flexible light strip with 1: 2 RGB light sources and CSP white light sources.
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
A2835 LED support containing 6 pins is designed and manufactured, a 2.8mmx3.5mm cuboid support is respectively provided with one welding pin 1.1 and two metal contacts 1.2 on two sides with the width of 2.8mm, the other two sides are respectively provided with two welding pins 1.1, and the total number of the 6 welding pins 1.1 and the 4 metal contacts 1.2 are totally designed.
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 at the outer bottom 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 RGB light source
Firstly, die bonding
Fixing red, green and blue chips 3.1 on three electrodes in the cup by a crystal fixing machine, fixing the red chip on one electrode at the bottom of the cup by silver glue, fixing the 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 (3) 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 light source is split by a mold on a splitter to form an RGB light source with welding feet on multiple sides (shown in figures 8 and 9).
Spectroscopic detection
On the RGB clamp survey spectrometer of 2835, through four metal contacts and two weld legs of pressing from both sides and surveying two limits, these four metal contacts have communicated four weld legs on two limits of 3.5mm respectively, have also communicated the electrode of chip, press from both sides survey to select the RGB light source of a plurality of categories to divide into a plurality of boxes, remove the defective products simultaneously and make RGB light source 7.1.
Sixthly, packaging
The RGB light sources 7.1 are woven onto the packaging web with a braiding machine.
Sixth, manufacturing of lamp strip
Printing solder paste
The prepared flexible circuit board 6.1 is placed on a printer, and then solder paste is printed on the solder position of the flexible circuit board by using a special steel mesh.
② sticking sheet
Method 1
And (3) attaching the RGB light source 7.1, the 2835 white light source 7.2 and the resistor 8.1 packaged on the packaging tape to a flexible circuit board printed with solder paste by using an easy-to-pass chip mounter to prepare a flexible lamp tape semi-finished product (shown in figures 10 and 11) with the RGB light source and the 2835 white light source.
Method two
The flexible circuit board printed with the solder paste is placed on a die bonder, the CSP white light source 7.3 is preliminarily fixed on the flexible circuit board through the solder paste, and then the RGB light source 7.1 and the resistor 8.1 packaged on the packaging belt are attached to the solder paste of the flexible circuit board by an easy-to-pass chip mounter to manufacture a semi-finished product of the flexible lamp belt with the RGB light source and the CSP white light source (as shown in figures 12 and 13).
Thirdly, reflow soldering
After reflow soldering, the light source and the resistor are connected to the flexible circuit board by tin soldering, and are cut into single strips, namely the flexible lamp strip with the ratio of 1: 1 of the RGB light source and the 2835 white light source (as shown in figure 14), or the flexible lamp strip with the ratio of 1: 2 of the RGB light source and the 2835 white light source (as shown in figure 15), or the flexible lamp strip with the ratio of 1: 1 of the RGB light source and the CSP white light source (as shown in figure 16), or the flexible lamp strip with the ratio of 1: 2 of the RGB light source and the CSP white light source (as shown in figure 17) is manufactured.
The present invention is described in detail with reference to the drawings by using specific embodiments of a light strip manufactured by an RGB light source and a white light source 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 (11)

1. A RGB light source and a method for manufacturing a light belt made of the white light source are disclosed, concretely, the light belt is manufactured by welding the RGB light source, the white light source or the RGB light source, the white light source and a control element on a flexible circuit board, the RGB light source is manufactured by packaging three chips respectively emitting red light, green light and blue light in an LED bracket, the bracket of the RGB light source is an LED bracket formed by embedding metal in resin, the bottom of the LED bracket is provided with a side, a is not less than 4 and not more than 8, the bracket is provided with b metal welding feet, b is not less than 6 and not more than 16, the bracket is provided with c side faces, c is not less than 4 and not more than 8, the metal welding feet are all exposed at the bottom, part or all of the metal welding feet are exposed from the side faces of the bracket, the welding feet exposed from the side faces of the bracket are distributed on d sides of the bottom, d is not less than 3 and not more than a, the side faces of the bracket are also extended with e metal contacts, e is not less than 2 and not more than 16, wherein 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 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 to form conduction, and the metal electrodes are at least connected with the welding feet arranged on 3 sides, the support is designed and manufactured into a connecting piece support of a plurality of supports, three chips which respectively emit red light, green light and blue light are respectively and fixedly crystallized on the metal electrodes in the cup of the support, after wire welding is carried out by a wire welding machine, each chip of a plurality of chips is respectively and electrically connected with the electrodes on the support, packaging glue is applied in the cup of the support to seal the chips and the electrodes, the packaging glue is solidified by heating, and is split into a plurality of RGB light sources by a splitting machine, then lightening, detecting and sorting the light on the light splitting machine, during detection, the detecting machine clamps and detects two side surfaces of the RGB light source, a plurality of electrodes of the clamping and detecting machine simultaneously touch the welding feet exposed from the two side surfaces and the metal contacts exposed from the two side surfaces, so that the RGB light source is lightened to carry out detection and sorting, the RGB light source with welding feet on a plurality of sides is manufactured after sorting, at least three chips of the manufactured RGB light source are conducted with the welding feet exposed from the three side surfaces, the white light source is a white light source or a CSP white light source manufactured by packaging an LED chip on a support, and the RGB light source, the white light source or the RGB light source, the white light source and a control element are welded on a flexible circuit board by an SMT machine to manufacture the lamp strip.
2. A lamp area that RGB light source and white light source made includes:
RGB light source, white light source or RGB light source, white light source and control element;
a flexible circuit board;
the LED lamp strip is characterized in that the lamp strip is composed of an RGB light source, a white light source or RGB light source, a white light source, a control element and a flexible circuit board, the RGB light source is an RGB light source manufactured by respectively packaging three chips emitting red light, green light and blue light by using an LED support, the LED support is characterized by being an LED support formed by embedding metal in resin, the bottom 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 faces, c is more than or equal to 4 and less than or equal to 8, the metal welding feet are exposed at the bottom, part or all of the metal welding feet are exposed from the side faces of the support, the welding feet exposed from the side faces of the support are distributed on d sides of the bottom, d is more than or equal to 3 and less than or equal to a, e metal contacts extend from the side faces 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 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 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 to form conduction, three chips respectively emitting red light, green light and blue light are fixedly crystallized on the metal electrodes in the cup of the support, each chip respectively emitting red light, green light and blue light is respectively connected with the metal electrodes on the support, packaging glue is bonded in the cup of the support and seals the chips and the metal electrodes, the three chips of the RGB light source are at least connected with the welding feet exposed on 3 side faces, the white light source is a white light source or a CSP white light source manufactured by packaging the LED chips on the support, and the RGB light source, the white light source or the RGB light source, the white light source and the control element are welded on the flexible circuit board.
3. A light strip comprising RGB light sources and a white light source as claimed in claim 1 or claim 2, wherein the solder fillets of the RGB light sources are three-dimensional fillet solder fillets extending from the sides of the RGB light sources and being crimped to the outer surfaces of the sides and bottom.
4. A light strip manufactured by RGB light source and white light source as claimed in claim 1 or 2, wherein the solder feet of the RGB light source are flat solder feet exposed at the bottom.
5. A light strip manufactured by RGB light source and white light source as claimed in claim 1 or 2, wherein the metal contact of RGB light source is only used for detecting the sorting light source, and the metal contact for detection is conducted with the solder of RGB light source and the chip.
6. A light strip manufactured by RGB light source and white light source as claimed in claim 1 or 2, wherein the metal contacts of RGB light source are disposed on two opposite sides of the light source and exposed, two sides with metal contacts are provided, each side has metal contacts and solder feet, and the metal contacts and solder feet on the two sides are used for detecting the light source.
7. A light strip made of RGB light source and white light source as claimed in claim 1 or 2, wherein the metal contacts of the RGB light source are disposed on one side of the light source and exposed, the side with metal contacts has both metal contacts and solder legs, or only metal contacts, and the metal contacts and solder legs on two opposite sides are used to detect the light source.
8. A light strip manufactured by the RGB light source and the white light source as claimed in claim 1 or 2, wherein the red chip of the RGB light source is fixed on the metal electrode by conductive silver paste, and the blue chip and the green chip are fixed on the metal electrode by insulating paste.
9. A lamp strip made of RGB light source and white light source according to claim 1 or 2, wherein the flexible circuit board is a rigid-flexible circuit board, and the rigid-flexible circuit board is a rigid-flexible circuit board formed by bonding hard resin at a local position on the circuit board.
10. A light strip made of RGB light source and white light source as claimed in claim 1 or 2, wherein the ratio of the number of RGB light source to the number of white light source is 1: 1.
11. A light strip made of RGB light source and white light source as claimed in claim 1 or 2, wherein the ratio of the number of RGB light source to the number of white light source is 1: 2, and the white light source is a white light source with two color temperatures.
CN202011175622.XA 2020-10-21 2020-10-21 Lamp strip manufactured by RGB light source and white light source and manufacturing method thereof Pending CN114464603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011175622.XA CN114464603A (en) 2020-10-21 2020-10-21 Lamp strip manufactured by RGB light source and white light source and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011175622.XA CN114464603A (en) 2020-10-21 2020-10-21 Lamp strip manufactured by RGB light source and white light source and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN114464603A true CN114464603A (en) 2022-05-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN114464603A (en)

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