KR101874883B1 - Centrifugal precipitation apparatus for phosphor of led packages - Google Patents

Centrifugal precipitation apparatus for phosphor of led packages Download PDF

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Publication number
KR101874883B1
KR101874883B1 KR1020170098277A KR20170098277A KR101874883B1 KR 101874883 B1 KR101874883 B1 KR 101874883B1 KR 1020170098277 A KR1020170098277 A KR 1020170098277A KR 20170098277 A KR20170098277 A KR 20170098277A KR 101874883 B1 KR101874883 B1 KR 101874883B1
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South Korea
Prior art keywords
unit
lead frame
phosphor
feeding
drum
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KR1020170098277A
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Korean (ko)
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문병휘
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문병휘
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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
    • H01L33/005—Processes
    • 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
    • H01L33/50—Wavelength conversion elements
    • 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
    • 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
    • H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)

Abstract

The present invention relates to an LED package manufacturing apparatus capable of shortening the settling time of a phosphor and improving yield, and more particularly, to an LED package manufacturing apparatus for mounting a magazine (4100) having a lead frame (4010) (1000), a feeding part (2000) to which each lead frame detached from the mounting part is fed, a holder part (3110) arranged in a circumferential direction to mount the lead frames transferred from the feeding part, and a holder part And a drum unit 3000 having a hardening unit 3500. The drum unit is cured by a hardening unit in a process of allowing the phosphor to be deposited by centrifugal force while being rotated while the lead frame is mounted, Of the LED package.

Description

TECHNICAL FIELD [0001] The present invention relates to a fluorescent substance centrifugal precipitator for an LED package,

The present invention relates to the fabrication of LEDs, and more particularly, to an apparatus for fabricating an LED package that can shorten the settling time of phosphors and improve the yield.

LED (Light Emitting Diode) is a semiconductor device that converts electric energy into light energy. It is composed of a compound semiconductor that emits light with a specific wavelength depending on the energy band gap. Recently, LED has been used in various fields such as optical communication and display. Such LEDs are provided in a predetermined package form so that they can be applied according to various purposes or processes.

Conventional LED manufacturing processes include a die bonding process in which an LED chip is bonded to a lead frame, a wire bonding process in which each lead is connected in a circuit through a wire, And a dispensing process of applying a fluorescent material to the chip.

In the manufacturing process of the LED package, the lead frame is generally cured in a cure oven and then enters the next process.

Korean Patent Laid-Open No. 10-2011-0136290 discloses a method of applying a phosphor of a conventional light emitting diode, and FIG. 1 is a view showing a light emitting diode by such a manufacturing process.

Specifically, the LED chip 100 is housed in the package body 120 and emits light, and the phosphor 131 is deposited on the surface of the LED chip 100. The silicone encapsulant 132 is injected onto the LED chip 100 and then cured to cover the LED chip 100 and the phosphor 131.

In the manufacturing process of the light emitting diode chip, the color temperature and the slope are determined between the wavelength of the light emitting diode chip 100 and the wavelength of the fluorescent material 131 to determine the mixing ratio of the fluorescent material 131 and the silicon sealing material 132 The mixture 130 is injected into the package body 120 in which the light emitting diode chip 100 is accommodated and the mixture 130 is injected into the mixture 130. [ A predetermined period of time is elapsed at a preset temperature so that the phosphor 131 is deposited on the surface of the LED chip 100. Therefore, when the slurry is injected into the package body 120 by mixing the phosphor 131 and the silicon encapsulant 132, the phosphor 131 may be damaged due to the difference in specific gravity between the silicone encapsulant 132 and the phosphor 131. [ Is deposited on the surface of the light emitting diode chip (100).

Thereafter, a step of curing the silicone encapsulant 132 is performed to complete the light emitting diode of the present invention.

As described above, in recent years, there is a rapid increase in demand for LEDs. In order to satisfy such demands, it is necessary to improve process efficiency for mass production.

However, a certain amount of time is inevitably required in the precipitation step and the curing step of the phosphor described above, which leads to uneconomical processing.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a phosphor centrifugal precipitator for an LED package capable of increasing productivity by drastically improving the efficiency of a process for precipitating an LED do.

In addition, the present invention provides a method of manufacturing a LED package, comprising the steps of: preparing a LED package having an LED package in which a centrifugal precipitation is applied to satisfy the requirement for reduction in scattering, It is an object of the present invention to provide a sedimentation apparatus.

The present invention is characterized by a mounting portion 1000 to which a magazine 4100 having a lead frame 4010 having a phosphor and a resin material dispensed is mounted, a feeding portion 2000 to which each lead frame removed from the mounting portion is fed, And a drum unit (3000) having a holder unit (3110) arranged in the circumferential direction to mount the lead frames transferred from the feeding unit and a hardening unit (3500) arranged to face the holder unit, the drum unit There is provided a phosphor centrifugal precipitator for an LED package which is cured by a curing device to maintain a precipitated state in a process of causing a phosphor to be precipitated by a centrifugal force while being rotated while a lead frame is mounted. Thus, the rapidity of the precipitation process is improved, and the precipitation state is not disturbed during the removal process, thereby improving the yield.

It is preferable that the curing unit is disposed on the inner circumferential side corresponding to each of the holder portions.

In addition, the curing unit may include a UV lamp or an IR lamp.

In one embodiment, the curing unit may start the operation for curing after the predetermined time has elapsed after the centrifugal sedimentation is started by rotating the drum unit.

A driving motor 3200 connected to the rotary shaft of the drum to provide a rotational force in the centrifugal sedimentation process of the drum portion, and a control motor 3300 for positioning the lead-in release holder portion of the lead frame by the feeding portion to correspond to the feeding portion .

The control motor may provide rotational power by friction force on the outer circumferential side of the drum portion, but the contact state may be released during operation of the drive motor.

And a feeding pusher (1300) for pulling the lead frame from the magazine to the feeding portion. The feeding portion includes a guide (2150) into which the side of the lead frame is inserted, a driving roller (2110) And a tension roller 2130 that provides an elastic force downward to maintain the contact state between the lead frame and the driving roller.

The loading unit includes a loading unit 1100 having a loading driving unit for loading a plurality of magazines on which a lead frame having a dispensing process has been completed and loading the loaded magazine sequentially to the strip pusher side and an unloading unit 1200 ).

According to the present invention, the time required for semiconductor manufacturing is dramatically reduced by shortening the conventional processes for precipitating and curing phosphors, which leads to an improvement in productivity.

In addition, since the curing device is applied to prevent the lead frame from being mixed in the waiting process while applying the centrifugal sedimentation method, it is possible to expect a certain productivity, thereby improving the reliability of the production process.

In addition, there is an effect that the spatial advantage is maximized and the operational reliability is improved.

1 is a view showing a light emitting diode according to a conventional method of applying a phosphor of a light emitting diode.
2 is a configuration diagram of a phosphor centrifugal precipitator of an LED package according to the concept of the present invention.
3 is a perspective view showing the phosphor centrifugal sedimentation apparatus of the LED package of the present invention from the front side.
4 is a rear side perspective view of a phosphor centrifugal precipitator of the LED package of the present invention.
5 is an enlarged view of a holder portion and a curing device portion in the phosphor centrifugal sedimentation apparatus of the LED package of the present invention.
6 is a perspective view of a phosphor centrifugal precipitator of an LED package according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a phosphor centrifugal precipitator of an LED package according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, when a part is referred to as being 'connected' to another part, it includes not only a direct connection but also a case where another part or device is connected in between. In addition, when a part is referred to as including an element, it is to be understood that the element may include other elements, not the exclusion of any other element, unless specifically stated otherwise.

The present invention basically adopts a sedimentation method by a centrifugal force for sedimentation of a phosphor as a unit of a lead frame to which a plurality of LEDs are mounted. In order to prevent the sedimentation during disturbance of the lead frame from being disturbed, (EN) Disclosed is a fluorescent substance centrifugal precipitator for an LED package, which enables curing of a resin material through a curing device unit in a process.

The present invention basically reduces the time required for the precipitation process in the LED chip prior to the dispensing of the mixed material of the resin material such as epoxy or silicone and the fluorescent material and the curing process, It may be formed integrally with the apparatus for processing. Further, it goes without saying that the curing process described in the prior art can be further applied to a later stage by the phosphor centrifugal sedimentation apparatus of the LED package according to the present invention.

It should be noted that the type and type of LED, lead frame and magazine applied in the present invention are not limited and the concept of the present invention includes a precipitation, precipitation or separation process of mixed materials in various types of semiconductor processes.

2 is a configuration diagram of a phosphor centrifugal precipitator of an LED package according to the concept of the present invention.

The present invention basically comprises a mounting portion 1000 to which a magazine 4100 having a lead frame 4010 with a dispenser of a phosphor and a resin material is mounted, a feeding portion 2000 to which each lead frame detached from the mounting portion is fed, And a drum unit (3000) having a holder unit (3110) arranged in a circumferential direction to mount the lead frames transferred from the feeding unit and a hardening unit arranged to face the holder unit, wherein the drum unit The present invention provides a phosphor centrifugal precipitator for an LED package which is cured by a curing device to maintain a precipitated state in a process of allowing a phosphor to be precipitated by centrifugal force while being rotated in a mounted state.

The lead frames 4010 in the form of a flat plate on which a plurality of LEDs are arranged can be arranged in a stacked state in a box-shaped magazine 4100, and the charging and discharging are performed in the mounting portion 1000 as a unit of the magazine 4100 . The shape of the magazine 4100 is not limited to the illustrated one, but it is preferable that the magazine 4100 is vertically stacked at a predetermined spacing so that the lead frames 4010 can be detached.

One or more magazines 4100 may be mounted on the mounting portion 1000 and wait for the centrifugal separation process sequentially. The magazine 4100, on which the lead frames 4010 waiting for the centrifugal separation process are mounted, As shown in Fig.

The loading unit 1100 can be moved to a position corresponding to the position of the drum unit 3000 in a conveyor manner and the drawing to the individual lead frame 4010 is performed by the strip pusher 1300. An embodiment of the driving method of the loading unit 1100 will be described later.

The strip pusher 1300 may be formed as a combination of a predetermined driving device and a push bar as a preferred embodiment, and various driving devices may be applied so as to be pullable in the longitudinal direction with respect to the substantially plate-shaped lead frame 4010 . This strip pusher 1300 performs an operation of horizontally pumping out a position corresponding to each lead frame 4010 with respect to one magazine 4100, and corresponds to the height direction of each lead frame 4010 So that it is possible to consider the case of vertical movement. However, it is preferable that the magazine 4100 is moved up and down with respect to the strip pusher 1300 fixed in the vertical direction in consideration of the arrangement state with the unloading unit 1200.

Further, the lead frames 4010 having been subjected to the sedimentation process can be mounted on the empty magazine 4100 again, and the magazine 4100 can be seated on the unloading portion 1200 on the upper side. However, the arrangement of the loading unit 1100 and the unloading unit 1200 may be interchanged.

Each of the lead frames 4010 separated by the strip pusher 1300 in the magazine 4100 can be supplied to the drum unit 3000 through the feeding unit 2000. The feeding unit 2000 may be applied to various driving systems if the magazines 4100 can be moved in the forward and backward directions in a horizontal state. In the embodiment of FIG. 2, the driving roller 2110 driving the belt unit 2120 ) Is applied to the image data.

The lead frame 4010, which is moved rearward through the feeding part 2000, is sequentially seated on the cylindrical drum part 3000 as a circumferential direction. To this end, the drum part 3000 rotates in a circumferential direction, And a plurality of holder portions 3110 to which the frame 4010 can be mounted.

In the illustrated example, the lead frame 4010 is mounted on the holder part 3110 disposed at the lower end side of the drum part 3000 by the feeding force of the feeding part 2000, 4010 is completed, the drum unit 3000 is rotated so that the next holder unit 3110 is placed at the mounting position.

In a state where the lead frame 4010 is mounted on the drum unit 3000, the phosphor is rotated according to the rotational force of the driving motor 3200, and the phosphor is precipitated due to the specific gravity difference according to the centrifugal force in the circumferential direction. At this time, the drive motor 3200 preferably comprises a spindle motor, and the maximum rotation speed is preferably 2,000 RPM, but is not limited thereto. A speed reducer or the like for adjusting the rotation speed by the drive motor 3200 may be interposed between the rotation shaft of the drum unit 3000 and the drive motor 3200.

It should be noted that according to the concept of the present invention, there is an advantage of shortening the process time remarkably in comparison with the conventional manufacturing process using the natural sedimentation method by the weight difference and the self weight.

According to the above concept, the drum unit 3000 should be rotated for two purposes: rotation of position adjustment for mounting and dismounting of the lead frame 4010 and rotation for providing centrifugal force. In the former case, accuracy is required for setting the exact positional relationship with the feeding unit 2000, and in the latter case, high-speed rotation is required for centrifugal sedimentation. Therefore, it is preferable that an independent motor is configured for achieving the two purposes, and accordingly, a control motor 3300 for position control may be additionally provided.

The control motor 3300 functions to precisely correspond the position of the holder portion 3110 on which the lead frame 4010 is mounted or detached, to the feeding portion 2000 as described above.

Accordingly, the driving motor 3200 may be connected to the rotating shaft portion of the drum unit 3000 to secure the rotational speed, and the control motor 3300 may control the rotational position of the body of the drum unit 3000 3100). ≪ / RTI >

The feeder 2000, the drive motor 3200, and the control motor 3300 may be additionally disposed on the drum unit 3000 side in order to control the rotation speed and the rotational position accurately. The control unit (not shown) for controlling the operation of each of the operation systems can operate the respective operation systems according to the set algorithm by receiving the feedback of the rotation number and the rotation position.

An unloading pusher 3400 may be disposed on the rear side of the drum unit 3000 to remove the lead frame 4010 from which the centrifugal sedimentation has been completed. And feeds the lead frame 4010 to the feeding unit 2000 by pushing out the lead frame 4010.

It is preferable that the control motor 3300 and the unloading pusher 3400 release the contact state with the drum unit 3000 so as not to be disturbed during centrifugal sedimentation by the drive motor 3200. [

The unloading pusher 3400 and the feeding part 2000 may be disposed at substantially corresponding positions on the front face to perform a function of pushing and pulling one lead frame 4010. Accordingly, The lead frame 4010 can be pulled in and out of the drum unit 3000 simultaneously.

The driving roller 2110 of the feeding unit 2000 rotates in the reverse direction with respect to the feeding direction and is mounted one by one in the empty magazine 4100 in the height direction. Since the mounting of the lead frame 4010 to the magazine 4100 is in the reverse order to the removal, the duplicate description will be omitted.

The number of the holder portions 3110 disposed in the drum portion 3000 may correspond to the number of the lead frames 4010 mounted on one magazine 4100. Accordingly, So that precipitation and curing are possible.

In order to detach the lead frame 4010 having been deposited from the drum unit 3000 as described above, it is necessary to correspond to the feeding unit 2000 on the lower side, and the other lead frames 4010 are to be connected to predetermined They shall be placed in an inclined or inverted position to wait for the next removal sequence. This results in disturbance of the phosphors which have been precipitated by centrifugation and mixed with the resin, which affects the yield of the LED. That is, the sedimentation in the lead frame 4010 which is initially removed is satisfactory, but as the sequence proceeds to the next step - the longer the waiting time, the sedimentation state is disturbed and the failure is likely to occur.

To this end, in the present invention, a curing device (3500 in Fig. 3) is provided for each holder 3110 to perform light emission capable of curing the resin.

The curing apparatus unit 3500 may be a selected light generating apparatus or a heat generating apparatus that emits light of various wavelengths capable of curing a resin such as silicon or generates heat. In consideration of the efficiency of curing, . As another embodiment, the case where the curing unit is composed of an IR lamp can be considered.

In addition, a hot air unit may be additionally / selectively provided in the drum unit. In addition to the curing unit, the hot air unit may function as a cure unit. In this case, the curing unit may include a resin A predetermined curing is performed on water, and then the hot air device is operated to cure the process. However, it goes without saying that the hot air device may be constituted by a curing device.

The hot air unit may include a heater and a fan. In the first embodiment, a case in which axial flow is generated around the rotational axis of the drum unit may be applied. In this case, a flow can be generated on the side of each lead frame by the axial flow, and in this case, it can be rotated as the drum part or fixed to the drum part. As a second embodiment, the hot air unit may generate hot air directed to each lead frame to replace or adjacent to each curing unit. It is also contemplated that, in some embodiments, the nozzles may be oriented with respect to a single fan in each of the lead frames.

Preferably, the curing device 3500 is disposed in a direction oriented toward the holder 3110 mounted on the outer periphery of the body 3100, and preferred embodiments related thereto will be described below.

3 is a perspective view showing the phosphor centrifugal sedimentation apparatus of the LED package of the present invention from the front side.

The main frame 1010 functions to support the overall structure, and may be configured in various forms according to the selection.

In addition, a housing part may be additionally disposed as a form to entirely cover the mounting part 1000 and the drum part 3000, and the housing part may perform a function of preventing the interior of the housing part from being contaminated. At this time, a door for loading and unloading the magazine 4100 can be added to the loading unit 1100 and the unloading unit 1200.

As described above, the mounting portion 1000 may include a lower loading portion 1100 and an upper unloading portion 1200. Although it may be considered that the loading part 1100 is formed on the front side and the unloading part 1200 is formed on the drum part 3000 in some cases, considering the spatial problem, .

The mounting portion 1000 is disposed in a mounting space in which the strip pusher 1300 is disposed so as to be oriented toward one end and a magazine 4100 that requires removal or mounting of the lead frame 4010 is located in the mounting space .

The magazine 4100 is moved up and down by the ascending and descending portion (not shown) to match the position where the strip pusher 1300 or the feeding portion 2000 and the lead frame 4010 are mounted.

The drum unit 3000 disposed on the rear side of the mounting portion 1000 includes a cylindrical body 3100 having a rotation shaft supported by the main frame 1010 and a holder portion 3110 provided on the outer peripheral side of the body 3100. [ And a curing device unit 3500 arranged to face each of the holder parts 3110 on the inner circumferential side of the holder part 3110. [

The holder portion 3110 may be configured as a selected number and arrangement but may be configured as a position and number corresponding to individual holder portions 3110 from the viewpoint of performing accurate curing with respect to each lead frame 4010 Lt; / RTI >

In addition, the curing device 3500 is rotated together with the holder 3110 by the driving motor 3200 to perform thermal curing in the centrifugal precipitation process. At this time, it is preferable that the curing unit 3500 is composed of a UV lamp. However, when the curing unit 3500 is operated together in the initiation of the centrifugal precipitation process, the curing unit 3500 may be affected after the fluidity is lowered to affect the precipitation, so that the curing unit 3500 is operated after a certain degree of precipitation, The control unit may actuate the driving motor 3200 to cause the centrifugal sedimentation to be performed first, and then, when the predetermined time has elapsed, the curing unit 3500 may be operated in the remaining rotation process.

In some cases, the curing device 3500 may be disposed on the outer peripheral side of the body 3100, or may be fixedly disposed on the inner peripheral side of the holder 3110 without being rotated.

4 is a rear side perspective view of a phosphor centrifugal precipitator of the LED package of the present invention.

As described above, it is preferable that the driving system of the drum unit 3000 is disposed on the rear side in consideration of the application of the forward pull-out structure. It is noted that the drive motor 3200 for controlling the centrifugal sedimentation and the control motor 3300 for position control are desirably configured separately.

At this time, the driving motor 3200 is fixed to the main frame 1010 on the rear side to directly transmit the rotational power to the rotating shaft of the drum unit 3000, and the control motor 3300 rotates It is preferable to provide a driving force to the outer peripheral side of the body 3100 for control.

Therefore, the body 3100 may have a ring-shaped rubbing rim (not shown) at a portion corresponding to the rubbing portion of the control motor 3300.

The control motor 3300 is driven in order to align the respective holder portions 3110 to the correct positions at the time of drawing and mounting the lead frame 4010 to the holder portion 3110 by the feeding portion 2000, There is a fear that the centrifugal sedimentation process by the centrifugal force sorter 3200 may act as a resistance against the provision of the centrifugal force. Therefore, the control motor 3300 may further include a lifting / lowering means, and the contacting state between the control motor 3300 and the body 3100 may be released during the centrifugal process operation by the lifting / lowering means.

5 is an enlarged view of a holder portion and a curing device portion in the phosphor centrifugal sedimentation apparatus of the LED package of the present invention.

The body 3100 may have a cylindrical or disc shape as a whole, and the holder 3110 may be supported on the outer periphery thereof. The holder portion 3110 is disposed to face the inner circumferential side of the drum portion 3000 and the lead frame 4010 is seated on the upper surface thereof to transmit a force in the circumferential direction to each LED.

To this end, the holder portion 3110 supports a side surface of each lead frame 4010 and a seating portion 3111 in the form of a flat plate on which the lead frame 4010 is mounted, A slit 3112 for guiding the movement of the slit 3112 and a wedge-shaped groove for correcting a positional error when the slit 3112 is mounted.

The holder portion 3110 may be made of a selected material, and each of the holder portions 3110 may be coupled to the drum portion 3000 so as to be removable. In addition, one holder 3110 may be configured to be coupled with two members coupled to each other on a central portion in the width direction.

In addition, the holder 3110 may include a plurality of through holes passing through the upper and lower surfaces in consideration of circulation of air and visual confirmation from the outside.

On the other hand, the curing device portion 3500 is disposed to face each holder portion 3110 and may be spaced apart from the lead frame 4010 by a predetermined interval in the inner circumferential direction to prevent heat from being conducted.

The curing unit 3500 may be fixed to the body 3100 and rotated together.

A feeding part 2000 is provided on the front side of the drum part 3000 to provide pulling power of the lead frame 4010 from the drum part 3000 or to the drum part 3000. In the feeding part 2000, Is interposed between the mounting portion 1000 and the drum portion 3000 as described above.

In the illustrated embodiment, the guide 2150 is guided in a state in which the side surface of the lead frame 4010 is inserted so that the lead frame 4010 can be supported in the forward and backward directions by supporting the lead frame 4010 on both opened sides, Roller 2110 as shown in FIG. In the embodiment of FIG. 2, the driving roller 2110 is driven by a belt, but the driving roller 2110 directly drives the bottom surface of the lead frame 4010 inserted in the guide 2150 to move forward and backward, A tension roller 2130 may be further disposed to provide an elastic force downward so as to maintain a close contact state between the outer bottom surface of the lead frame 4010 and the driving roller 2110. In addition, at the entrance side of the guide 2150, a lead-in portion 2140 having a cross-section widening toward the front is formed so as to correspond to an error in the vertical direction or the lateral direction when the lead frame 4010 is advanced by the strip pusher 1300 .

6 is a perspective view of a phosphor centrifugal precipitator of an LED package according to a preferred embodiment of the present invention.

3, the mounting portion 1000 may be disposed in front of the magazine 4100 to mount and remove the magazine 4100, and may include a lower loading portion 1100 and an upper unloading portion 1200, Same as.

A plurality of magazines 4100 mounted with the lead frame 4010 can wait for the deposition process, and the loading unit 1100 sequentially moves to one mounting space. The loading amount of the loading unit 1100 may be 10 magazines 4100, but is not limited thereto.

For this purpose, the loading unit 1100 may include a loading driving unit 1110 that provides a feeding power to one side. The loading driving unit 1110 may be operated as a conveyor.

In the mounting space in which the strip pusher 1300 is disposed, a lifting and lowering portion (not shown) for holding and raising and lowering the magazine 4100 on which the lead frame 4010 is detached or mounted can be additionally disposed. The ascending and descending portion may be operated by a ball screw method, but is not limited thereto.

A housing portion (not shown) may be disposed on the main frame 1010 so as to surround the entire outer surface of the main frame 1010. The housing portion is disposed to surround the drum portion 3000 and the mounting portion 1000, As described above. An opening or a door may be formed on the front side of the housing part as shown in the figure so that the magazine 4100 can be inserted into and ejected from the mounting part 1000.

In addition, a monitor unit 4500 may be additionally disposed to output the operation state of each part by the operation of the control unit and receive the user's control input. The monitor unit 4500 can mainly perform a function of displaying the progress status of the precipitation process to the user.

Operation of the phosphor centrifugal precipitator of the LED package according to the present invention will now be described.

When the one or more magazines 4100 in which the lead frames 4010 having completed the dispensing process are mounted on the mounting portion 1000, the magazine 4100 is transferred to the mounting space by the loading driving portion 1110, 4010 are sequentially pulled out by the strip pusher 1300.

The lead frame 4010 thus drawn is moved backward by the feeding part 2000 and inserted into the holder part 3110 fixed to the drum part 3000 and the control motor 3300 is moved to the next order of the holder part 3110, To correspond to the feeding unit 2000. When the lead frames 4010 are sequentially mounted and the arrangement of the lead frames 4010 is completed in the circumferential direction, the driving motor 3200 is operated to rotate the drum unit 3000 at a predetermined speed. In this process, This is done by centrifugal force. As the phosphor is separated, the resin is cured by the curing device 3500, and the operation of the driving motor 3200 is stopped. The feeding part 2000 is drawn out to each of the holder parts 3110 and mounted on the empty magazine 4100 and the respective lead frames 4010 are sequentially placed in the removal position by the control motor 3300 . When the centrifugal sedimentation and installation for one magazine 4100 is completed, the same operations for the next magazine 4100 can be repeated.

In the description of the present invention, the curing of the resin material by the curing device does not necessarily mean a complete curing state, but a degree of providing a non-fluidity or a low fluidity so that the fluorescent material precipitated in the previous stage of the curing process is not mixed again by its own weight It suffices.

The phosphor centrifugal sedimentation apparatus of the LED package according to the present invention shortens the time required for conventional phosphor deposition and curing, thereby dramatically reducing the time required for semiconductor manufacturing, which leads to an improvement in productivity.

In addition, since the curing device is applied to prevent mixing of the lead frames in the waiting process while applying the centrifugal sedimentation method, a certain yield can be expected and the reliability of the production process is improved.

It also has a structure that maximizes spatial advantages and improves operational reliability.

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the content of the following claims.

1000 ... mounting portion 1010 ... main frame
1100 ... loading part 1200 ... unloading part
1300 ... strip pusher 2000 ... feeding part
2110 ... drive roller 2120 ... belt portion
2130 ... tension roller 2140 ... in and out
2150 ... Guide 2160 ... Up-down pusher
3000 ... drum portion 3100 ... body
3110 ... holder part 3111 ... seat part
3112 ... Slit part 3200 ... Drive motor
3300 ... control motor 3400 ... unloading pusher
3500 ... Curing device part 4010 ... Lead frame
4100 ... Magazine 4500 ... Monitor part

Claims (8)

A mounting portion 1000 to which a magazine 4100 having a lead frame 4010 having a phosphor and a resin material dispensed is mounted;
A feeding part (2000) to which each lead frame detached from the mounting part is fed; And
And a drum unit (3000) having a holder unit (3110) arranged in the circumferential direction to mount the lead frames transferred from the feeding unit and a hardening unit (3500) arranged corresponding to each of the holder units,
The drum unit,
Wherein the lead frame is rotated in a state where the lead frame is mounted, and the phosphor is cured by the curing unit during the process of causing the phosphor to settle by the centrifugal force to maintain the precipitated state.
delete The method according to claim 1,
The curing device unit,
A phosphor centrifugal precipitator for an LED package comprising a UV lamp.
The method according to claim 1,
The curing device unit,
And the drum portion is rotated to start the centrifugal sedimentation and to start the operation for curing after the set time has elapsed.
The method according to claim 1,
A driving motor (3200) connected to a rotating shaft of the drum unit to provide a rotational force in a centrifugal sedimentation process of the drum unit; And
And a control motor (3300) for positioning the lead-in and lead-out holder portion of the lead frame by the feeding portion to correspond to the feeding portion.
6. The method of claim 5,
The control motor includes:
Wherein a rotational force is provided by frictional force at the outer circumference side of the drum portion, and a contact state is released at the time of operation of the drive motor.
The method according to claim 1,
And a strip pusher (1300) for pulling out the lead frame from the magazine to the feeding portion,
The feeding unit includes:
A driving roller 2110 for providing a feeding power at the bottom of the lead frame, a tension roller 2110 for providing an elastic force downward to maintain the contact state between the lead frame and the driving roller 2130). ≪ / RTI >
8. The method of claim 7,
Wherein,
A loading unit 1100 having a loading driving unit for loading a plurality of magazines on which a lead frame having a completed dispensing process is mounted and being sequentially transferred to a strip pusher side, and an unloading unit 1200 disposed above the loading unit A phosphor centrifugal precipitator in a LED package.


KR1020170098277A 2017-08-02 2017-08-02 Centrifugal precipitation apparatus for phosphor of led packages KR101874883B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008311477A (en) * 2007-06-15 2008-12-25 Minami Kk Led display and method of manufacturing the same
KR101539037B1 (en) * 2014-05-21 2015-07-30 비케이전자 주식회사 Apparatus for transfering pcb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008311477A (en) * 2007-06-15 2008-12-25 Minami Kk Led display and method of manufacturing the same
KR101539037B1 (en) * 2014-05-21 2015-07-30 비케이전자 주식회사 Apparatus for transfering pcb

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