Patent Document

CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims the benefit of Korean Patent Application No. 10-2010-0122674, filed on Dec. 3, 2010, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. 
       BACKGROUND 
       [0002]    1. Field 
         [0003]    The present disclosure relates to methods of applying a phosphor to a semiconductor light-emitting device, and more particularly, to methods of applying a phosphor according to a light-emission characteristic of semiconductor light-emitting devices so as to increase a yield rate of manufacture with respect to a white light-emitting device chip. 
         [0004]    2. Description of the Related Art 
         [0005]    A light-emitting diode (LED) is a semiconductor light-emitting device that converts an electrical signal into light by using a characteristic of a compound semiconductor. The semiconductor light-emitting device such as the LED is characterized in that a lifetime of the semiconductor light-emitting device is longer than other conventional light-emitting bodies, and the semiconductor light-emitting device uses a low voltage and small power is consumed. Also, the semiconductor light-emitting device is excellent in its fast response speed and shock resistance, and furthermore, the semiconductor light-emitting device may be small and lightweight. The semiconductor light-emitting device may generate rays respectively having different wavelengths according to the types and composition of semiconductors, so that it is possible to generate and use rays with different wavelengths according to necessity. 
         [0006]    Recently, a fluorescent lamp or an incandescent lamp according to the related art is replaced by a lighting lamp that uses a white light-emitting device chip having a high brightness. For example, the white light-emitting device chip may be formed by applying a red, green, or yellow phosphor to a light-emitting device that emits blue or ultraviolet light. 
         [0007]    The phosphor application may be performed by using a wafer level coating technique for directly applying a phosphor to a wafer whereon a plurality of light-emitting devices are formed. However, the wafer level coating technique may be used only for a structure in which light is emitted above the light-emitting devices. Also, a light-emission characteristic slightly varies among the light-emitting devices formed on the same wafer, so that, if the same phosphor is applied to the light-emitting devices, white light-emitting device chips formed thereof may emit white rays having different characteristics. Due to this, a yield rate of manufacture with respect to a white light-emitting device chip may be decreased. 
       SUMMARY 
       [0008]    Provided are methods of applying a phosphor to a semiconductor light-emitting device, whereby a uniform color characteristic may be achieved, and a yield rate of manufacture with respect to a white light-emitting device chip may be increased. 
         [0009]    Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments. 
         [0010]    According to an aspect of the present invention, a method of applying a phosphor to a light-emitting device includes the operations of testing light-emission characteristics of a plurality of light-emitting devices formed on a wafer; disposing a plurality of light-emitting devices having the same light-emission characteristics on a carrier substrate; applying a same phosphor to the plurality of light-emitting devices disposed on the carrier substrate; and separating the plurality of arrayed light-emitting devices. 
         [0011]    The operation of testing the light-emission characteristics may include the operations of independently separating the plurality of light-emitting devices formed on the wafer from the wafer; and testing a light-emission characteristic of each of the plurality of separated light-emitting devices. 
         [0012]    The light-emission characteristics may include a light-emission spectrum and brightness. 
         [0013]    The carrier substrate may have an adhesion layer formed on a top surface of the carrier substrate, and the plurality of light-emitting devices may be disposed on the adhesion layer. 
         [0014]    The adhesion layer may include a photosensitive adhesive (PSA) that is curable by ultraviolet (UV) light, and the carrier substrate may have transmittance with respect to the UV light. 
         [0015]    The operation of separating the plurality of light-emitting devices may include the operations of hardening the adhesion layer by irradiating the UV light to a bottom surface of the carrier substrate; and separating each of the plurality of light-emitting devices by using a holder. 
         [0016]    The carrier substrate may further have an adhesive layer disposed on a top surface of the adhesion layer, and the plurality of light-emitting devices may be arrayed on the adhesive layer. 
         [0017]    The adhesive layer may include a first adhesive layer disposed on the adhesion layer, a photo-reflection layer disposed on the first adhesive layer, and a second adhesive layer disposed on the photo-reflection layer. 
         [0018]    A white filler having thermal conductivity, or a filler coated by metal may be dispersed in the first adhesive layer, the photo-reflection layer may include a metal thin film, and the second adhesive layer may have light-transmittance. 
         [0019]    The operation of applying the same phosphor may include the operations of disposing a stencil mask above the plurality of light-emitting devices; arranging a phosphor paste on the stencil mask; and pressurizing the phosphor paste by using a squeeze, and uniformly applying the phosphor paste to top surfaces and side surfaces of the plurality of light-emitting devices. 
         [0020]    The stencil mask may include a mesh structure designed to allow the phosphor paste to pass through the mesh structure, a masking member for masking the mesh structure, and one or more openings formed in the masking member. 
         [0021]    The masking member may function to prevent the phosphor from being applied to electrode pads and areas by masking the electrode pads formed on the top surfaces of the plurality of light-emitting devices, and the areas between the plurality of light-emitting devices. 
         [0022]    The masking member may have a portion for contacting the carrier substrate, and another portion for contacting the electrode pads of each of the plurality of light-emitting devices, and a height of the portion for contacting the carrier substrate may be different from a height of the other portion for contacting the electrode pads of each of the plurality of light-emitting devices. 
         [0023]    A plurality of openings that respectively correspond to the plurality of light-emitting devices may be formed in the masking member. 
         [0024]    A size of each of the plurality of openings may be a value corresponding to a total sum of a size of each of the plurality of light-emitting devices and a thickness of the phosphor formed on side surfaces of each of the plurality of light-emitting devices. 
         [0025]    The stencil mask may have an opening, and all of the plurality of light-emitting devices on the carrier substrate may be positioned in the opening. 
         [0026]    The masking member may be formed only at positions corresponding to electrode pads formed on the top surfaces of the plurality of light-emitting devices. 
         [0027]    The stencil mask may have a plurality of openings, and a plurality of light-emitting devices may be positioned in each of the plurality of openings. 
         [0028]    The stencil mask may include a metal mask having an opening by which an inner portion is completely open. 
         [0029]    The operation of applying the same phosphor may further include the operation of hardening the phosphor paste applied to the top surfaces and the side surfaces of the plurality of light-emitting devices. 
         [0030]    The operation of applying the same phosphor may further include the operation of removing the phosphor applied to the electrode pads by irradiating a laser to positions of the electrode pads formed on the plurality of light-emitting devices. 
         [0031]    The operation of applying the same phosphor may further include the operations of positioning a spray device above the plurality of light-emitting devices; applying a phosphor paste to top surfaces and side surfaces of the plurality of light-emitting devices according to a spray coating way by sequentially moving the spray device above the plurality of light-emitting devices; and hardening the phosphor paste applied to the top surfaces and the side surfaces of the plurality of light-emitting devices. 
         [0032]    The phosphor paste may be formed by further adding a catalyst to a paste that is a mixture of a phosphor and a binder resin, whereby an average viscosity of the phosphor paste may be less than about 100 cps. 
         [0033]    The operation of applying the same phosphor may further include the operations of disposing a release film having a phosphor film adhered thereon above the plurality of light-emitting devices; applying a phosphor to top surfaces and side surfaces of the plurality of light-emitting devices by completely adhering the phosphor film that is on the release film on surfaces of the plurality of light-emitting devices and the carrier substrate by performing a laminating process; and removing the phosphor applied to electrode pads that are formed on the top surfaces of the plurality of light-emitting devices. 
         [0034]    Heat may be applied to the phosphor film while the laminating process is performed. 
         [0035]    The laminating process may be performed in a vacuum atmosphere. 
         [0036]    The release film may include a plastic material comprising polyethylene terephthalate (PET) or polyvinyl chloride (PVC). 
         [0037]    The phosphor film may be formed by disposing a liquid thermocurable resin on the release film, dispersing one or more types of phosphors in the thermocurable resin, and then by partially hardening the thermocurable resin. 
         [0038]    The operation of removing the phosphor may include the operations of disposing a mask on the plurality of light-emitting devices, wherein the mask has a pattern of a plurality of openings at positions corresponding to the electrode pads; and removing the phosphor applied to the electrode pads by irradiating UV light to the electrode pads through the mask. 
         [0039]    The phosphor film on the release film may be patterned to have openings at positions corresponding to the electrode pads formed on the top surfaces of the plurality of light-emitting devices. 
         [0040]    The release film may be disposed to allow the phosphor film on the release film to face the plurality of light-emitting devices. 
         [0041]    According to another aspect of the present invention, a method of applying a phosphor to a light-emitting device includes the operations of testing light-emission characteristics of a plurality of light-emitting devices formed on a wafer; arranging a release film whereon a phosphor film is adhered; disposing and adhering a plurality of light-emitting devices having the same light-emission characteristics on the phosphor film on the release film; disposing the plurality of light-emitting devices having the phosphor film adhered thereto on a carrier substrate; applying a phosphor to top surfaces and side surfaces of the plurality of light-emitting devices by completely adhering the phosphor film that is on the release film on surfaces of the plurality of light-emitting devices and the carrier substrate by performing a laminating process; and separating each of the plurality of light-emitting devices. 
         [0042]    According to another aspect of the present invention, a method of applying a phosphor to a light-emitting device includes the operations of testing light-emission characteristics of a plurality of light-emitting devices formed on a wafer; arranging a carrier substrate whereon a phosphor film is adhered; disposing and adhering a plurality of light-emitting devices having the same light-emission characteristics on the phosphor film on the carrier substrate; separating each of the plurality of light-emitting devices, and the phosphor film adhered on the plurality of light-emitting devices from the carrier substrate; arranging each of the plurality of light-emitting devices on a base substrate; and applying a phosphor to top surfaces and side surfaces of the plurality of light-emitting devices by pressing the phosphor film adhered on the top surfaces of the plurality of light-emitting devices arranged on the base substrate. 
         [0043]    The carrier substrate may have an adhesion layer formed on a top surface of the carrier substrate, and the phosphor film may be adhered on the adhesion layer. 
         [0044]    A collet having a cavity with a shape corresponding to an outer frame shape of each of the plurality of light-emitting devices may press down the phosphor film, each of the plurality of light-emitting devices may be accepted into the cavity of the collet, and the phosphor film may be pressed down by the collet, whereby the phosphor may be applied to the top surfaces and the side surfaces of the plurality of light-emitting devices. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0045]    These and/or other aspects will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which: 
           [0046]      FIG. 1  illustrates a pattern of a plurality of semiconductor light-emitting device chips formed on a wafer substrate; 
           [0047]      FIG. 2  illustrates a case in which semiconductor light-emitting device chips having the same light-emission characteristics are re-arrayed on a same carrier substrate; 
           [0048]      FIG. 3  illustrates a method of applying a phosphor by performing screen printing, according to an embodiment of the present invention; 
           [0049]      FIG. 4  illustrates an exemplary structure of a stencil mask; 
           [0050]      FIG. 5  is a cross-sectional view of a structure of the stencil mask; 
           [0051]      FIG. 6  illustrates a structure of a stencil mask according to another embodiment of the present invention; 
           [0052]      FIG. 7  illustrates a case in which semiconductor light-emitting device chips are re-arrayed according to another embodiment of the present invention; 
           [0053]      FIG. 8  illustrates a structure of a stencil mask according to another embodiment of the present invention; 
           [0054]      FIG. 9  illustrates a method of applying a phosphor by performing screen printing, according to another embodiment of the present invention; 
           [0055]      FIG. 10  is a cross-sectional view illustrating a structure of a carrier substrate having an adhesion layer and an adhesive layer with a multi-layered structure; 
           [0056]      FIG. 11  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0057]      FIG. 12  illustrates a process in which a phosphor formed on electrode pads of semiconductor light-emitting device chips is removed by laser irradiation; 
           [0058]      FIG. 13  illustrates a dicing process performed when a phosphor is completely formed between semiconductor light-emitting device chips; 
           [0059]      FIG. 14  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0060]      FIG. 15  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0061]      FIG. 16  illustrates a structure of a stencil mask according to another embodiment of the present invention; 
           [0062]      FIG. 17  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0063]      FIG. 18  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0064]      FIG. 19  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0065]      FIG. 20  illustrates a phosphor applying method according to another embodiment of the present invention; 
           [0066]      FIG. 21  illustrates a phosphor applying method according to another embodiment of the present invention; and 
           [0067]      FIGS. 22 and 23  illustrate a phosphor applying method according to another embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0068]    Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout and the size of each component may be exaggerated for clarity. In this regard, the present embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the embodiments are merely described below, by referring to the figures, to explain aspects of the present description. 
         [0069]      FIG. 1  illustrates a pattern of a plurality of semiconductor light-emitting device chips  10  formed on a wafer substrate  100  including sapphire. As illustrated in  FIG. 1 , in general, the semiconductor light-emitting device chips  10  may be arrayed in a rectangular-shape lattice on the wafer substrate  100 . The semiconductor light-emitting device chips  10  may be formed on the wafer substrate  100  by performing, but not limited thereto, one of well-known processes. One or more electrode pads  11  and  12  for electrical connection may be formed on a top surface of each semiconductor light-emitting device chip  10 .  FIG. 1  illustrates a case in which two electrode pads  11  and  12 , that is, an N-type electrode pad  11  and a P-type electrode pad  12  are formed on a top surface of each semiconductor light-emitting device chip  10 . For example, as illustrated in  FIG. 1 , the repetitive two electrode pads  11  and  12  may be disposed at respective corners facing each other in a diagonal direction. 
         [0070]    The semiconductor light-emitting device chips  10  arrayed on the wafer substrate  100  are independently separated from the wafer substrate  100  and then respective operating characteristics of the respective semiconductor light-emitting device chips  10  are tested. For example, the operating characteristic may include a light-emission spectrum, brightness, a response speed, a driving voltage, or the like. According to a result of the test, the semiconductor light-emitting device chips  10  may be classified into various categories. Afterward, the semiconductor light-emitting device chips  10  having the same light-emission characteristics with respect to a light-emission spectrum or brightness may be re-arrayed on the same carrier substrate  110 , as illustrated in  FIG. 2 . While  FIG. 2  illustrates a case in which 56 semiconductor light-emitting device chips  10  are re-arrayed on the carrier substrate  110 , the case of  FIG. 2  is exemplary and thus the number of the semiconductor light-emitting device chips  10  re-arrayed on the carrier substrate  110  is not limited thereto. A gap between the re-arrayed semiconductor light-emitting device chips  10  may be determined by a thickness of each semiconductor light-emitting device chip  10  and a dicing width. For example, the gap between the re-arrayed semiconductor light-emitting device chips  10  may be from about 50 um to about 500 um. 
         [0071]    After the semiconductor light-emitting device chips  10  are re-arrayed on the carrier substrate  110 , a phosphor is applied thereto so as to surround the semiconductor light-emitting device chips  10 . The phosphor may be appropriately selected according to a light-emission characteristic of the semiconductor light-emitting device chips  10 . For example, a phosphor may be selected according to a light-emission characteristic of the semiconductor light-emitting device chips  10 , so that light emitted from each semiconductor light-emitting device chip  10  may excite the phosphor and then white light having a predetermined spectrum may be generated. Thus, according to the present embodiment, a phosphor that matches with a light-emission characteristic of each semiconductor light-emitting device chip  10  is selected and applied thereto, so that, after manufacture is complete, irregularities in light-emitting qualities of white light-emitting device chips may be reduced. Hereinafter, various methods of applying a phosphor to the semiconductor light-emitting device chips  10  re-arrayed on the carrier substrate  110  are described in detail. 
         [0072]      FIG. 3  illustrates a method of applying a phosphor by performing screen printing, according to an embodiment of the present invention. Referring to  FIG. 3  ( a ), first, an adhesion layer  111  is formed on the carrier substrate  110 , and the semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the adhesion layer  111  at regular gaps. The adhesion layer  111  functions to assure positional stability of the semiconductor light-emitting device chips  10  arrayed on the carrier substrate  110 . For example, the adhesion layer  111  may be formed of a photosensitive adhesive (PSA) that is curable by ultraviolet (UV) light. The carrier substrate  110  may be formed as a flexible film that is easily bent or may be formed as a solid flat plate. In a case where the adhesion layer  111  is formed of the PSA, the carrier substrate  110  may be formed of a UV-transmitting material. However, if the semiconductor light-emitting device chips  10  may be stably fixed on a surface of the carrier substrate  110 , the adhesion layer  111  may be omitted. 
         [0073]    Next, referring to  FIG. 3  ( b ), a stencil mask  115  for screen printing may be disposed on the semiconductor light-emitting device chips  10  arranged on the carrier substrate  110 . As illustrated in  FIG. 4 , the stencil mask  115  may include a mesh structure  116  formed of steel use stainless (SUS), and a masking member  117  formed to mask the mesh structure  116 . A surface of the mesh structure  116  may be further coated by using metal including chromium (Cr), nickel (Ni), palladium (Pd), copper (Cu), gold (Au), aluminum (Al), or the like, in order that the phosphor can easily pass through the mesh structure  116 . The masking member  117  may be formed of a polymer or a metal thin film. Referring to  FIG. 4 , the masking member  117  functions to mask the electrode pads  11  and  12  formed on the top surface of each semiconductor light-emitting device chip  10 , and to mask gaps between the semiconductor light-emitting device chips  10 , so that the masking member  117  prevents the phosphor from being applied thereto. The masking member  117  has a plurality of openings  118  so as to allow the phosphor to be applied only to a top emission surface and four side surfaces of each semiconductor light-emitting device chip  10 . In order to apply the phosphor to the side surfaces of each semiconductor light-emitting device chip  10 , each opening  118  of the masking member  117  may have a size that is slightly greater than a size of each semiconductor light-emitting device chip  10 . Thus, the size of each opening  118  may be a value corresponding to the total sum of the size of each semiconductor light-emitting device chip  10  and a thickness of the phosphor that is formed on a side surface of each semiconductor light-emitting device chip  10 . For example, the thickness of the phosphor formed on the side surface of each semiconductor light-emitting device chip  10  may be between about 20 um and about 100 um, so that the size of each opening  118  may be vertically and horizontally greater than the size of each semiconductor light-emitting device chip  10  by about 20 um through about 100 um. Also, a gap between the openings  118  may be the same as a gap between phosphors that are applied to facing surfaces of the semiconductor light-emitting device chips  10 . For example, the gap between the openings  118 , that is, the gap between the phosphors may be from about 40 um to about 200 um. 
         [0074]    A portion of a bottom surface of the masking member  117  contacts the adhesion layer  111  of the carrier substrate  110 , and the other portion of the bottom surface contacts the electrode pads  11  and  12  of each semiconductor light-emitting device chip  10 . For example, referring to  FIG. 5  that is a cross-sectional view of a structure of the stencil mask  115 , a first portion  117   a  of the masking member  117  contacts the adhesion layer  111  of the carrier substrate  110 , and a second portion  117   b  contacts the electrode pads  11  and  12  of each semiconductor light-emitting device chip  10 . Thus, the first portion  117   a  and the second portion  117   b  have different heights. By using the masking member  117  having two heights, the top emission surface and the four side surfaces of each semiconductor light-emitting device chip  10 , except for the electrode pads  11  and  12  of each semiconductor light-emitting device chip  10 , may be simultaneously applied by using the phosphor. 
         [0075]    Referring back to  FIG. 3  ( b ), when the stencil mask  115  is disposed on the semiconductor light-emitting device chips  10 , a phosphor paste  30  is arranged on the stencil mask  115 . Afterward, the phosphor paste  30  is pushed and pressed by using a squeeze  120 . Then, the phosphor paste  30  passes through the mesh structure  116  in each opening  118  of the stencil mask  115 , so that the phosphor paste  30  is uniformly applied to the top emission surface and the four side surfaces of each semiconductor light-emitting device chip  10 . The squeeze  120  may be formed of a plastic material so as to prevent a metal particle from being generated by friction against the metal that forms the masking member  117 . For example, the squeeze  120  may be formed of urethane, acryl, or polycarbonate, or may be formed of an engineering plastic material, including nylon or the like, which has a high abrasion-resistance and excellent mechanical properties. 
         [0076]    The phosphor paste  30  may be formed by mixing a resin and one or more types of phosphors according to a predetermined mixing ratio. The types of phosphors and the mixing ratio may be selected according to a light-emission characteristic of the semiconductor light-emitting device chips  10 . The resin may be formed of a polymer material having characteristics including high adhesion, high heat-resistance, low hygroscopic properties, and high light-transmittance, and in general, the resin is formed of an epoxy-based curable resin or a silicon-based curable resin. A curing system of the resin may be thermally curable or photocurable, or a combination of thermally curable and photocurable. 
         [0077]    After the phosphor paste  30  is uniformly applied to the top emission surface and the four side surfaces of each semiconductor light-emitting device chip  10 , the phosphor paste  30  may be hardened by applying heat or light thereto. Afterward, as illustrated in  FIG. 3  ( c ), a phosphor layer  35  may be formed on the top surface and side surfaces of each semiconductor light-emitting device chip  10 . Next, the stencil mask  115  is removed, and the semiconductor light-emitting device chips  10  on the carrier substrate  110  may be independently separated by using a holder  125 . In a case where the adhesion layer  111  is formed of a PSA that is curable by UV light, before the semiconductor light-emitting device chips  10  are separated, the UV light is irradiated to a bottom surface of the carrier substrate  110  to harden the adhesion layer  111 . In this case, when the adhesion layer  111  is hardened, the semiconductor light-emitting device chips  10  may be further easily separated. In a subsequent process, each of the separated semiconductor light-emitting device chips  10  is packaged to manufacture a white light-emitting device chip. 
         [0078]    A shape of the stencil mask  115  illustrated in  FIG. 4  may vary. For example,  FIG. 6  illustrates a stencil mask  115 ′ according to another embodiment of the present invention. In the stencil mask  115  of  FIG. 4 , the masking member  117  is divided into a region for masking the electrode pads  11  and  12 , and a region for masking a gap between the semiconductor light-emitting device chips  10 . That is, the masking member  117  for masking the electrode pads  11  and  12  is separately arranged in the opening  118 . On the other hand, in the stencil mask  115 ′ of  FIG. 6 , the masking member  117  extends to regions corresponding to the electrode pads  11  and  12  via corners of each opening  118 . The stencil mask  115 ′ of  FIG. 6  further easily masks the electrode pads  11  and  12 , thereby preventing a phosphor from being applied to a portion of the electrode pads  11  and  12 . 
         [0079]    Referring to  FIG. 2 , the semiconductor light-emitting device chips  10  are arrayed in the same direction on the carrier substrate  110 , but an array direction of the semiconductor light-emitting device chips  10  may vary. For example,  FIG. 7  illustrates a case in which adjacent semiconductor light-emitting device chips  10  are arrayed in different directions. Referring to the case of  FIG. 7 , compared to an array of  FIG. 2 , the semiconductor light-emitting device chips  10  on even rows of an odd column are rotated by 90 degrees in a left direction, and the semiconductor light-emitting device chips  10  on odd rows of an even column are rotated by 90 degrees in a left direction. Thus, in an entire array, the electrode pads  11  and  12  are gathered at respective corners and face each other. This array further facilitates formation of a masking member. For example,  FIG. 8  illustrates a stencil mask  115 ″ according to another embodiment of the present invention. The stencil mask  115 ″ of  FIG. 8  may be used in the array of  FIG. 7 . In the case of  FIG. 7 , four electrode pads  11  and  12  are gathered at respective corners and face each other, so that a region of the masking member  117  which masks the electrode pads  11  and  12  may be largely formed in a center among four openings  118 . Thus, referring to a case of  FIG. 8 , it is further easy to form the masking member  117 . 
         [0080]      FIG. 9  illustrates a method of applying a phosphor by performing screen printing, according to another embodiment of the present invention. Referring to  FIG. 9  ( a ), first, an adhesion layer  111  and an adhesive layer  112  are sequentially formed on a carrier substrate  110 . Then, semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the adhesive layer  112  at regular gaps. The adhesion layer  111  functions to temporarily fix the adhesive layer  112  thereon. As described above, the adhesion layer  111  may be formed of a PSA that is curable by UV light. Also, as described above, the carrier substrate  110  may be formed as a flexible film that is easily bent or may be formed as a solid flat plate. In a case where the adhesion layer  111  is formed of the PSA, the carrier substrate  110  may be formed of a UV-transmitting material. 
         [0081]    The adhesive layer  112  may be a single layer formed of the same material but may be a multi-layer structure having different layers.  FIG. 10  is a cross-sectional view illustrating the carrier substrate  110 , the adhesion layer  111 , and a multi-layered structure of the adhesive layer  112 . Referring to  FIG. 10 , the adhesion layer  111  and the adhesive layer  112  are disposed on the carrier substrate  110 . The adhesive layer  112  may include a first adhesive layer  112   a , a photo-reflection layer  112   b , and a second adhesive layer  112   c  that are sequentially formed on the adhesion layer  111 . In this case, the semiconductor light-emitting device chips  10  may be arrayed on the second adhesive layer  112   c . The adhesive layer  112  may have high reflectance so as to reflect light emitted from a lower portion of the semiconductor light-emitting device chips  10 , and may have heat-resistance and thermal conductivity so as to resist and deliver heat, which is generated from the semiconductor light-emitting device chips  10 , to the outside. Also, the adhesive layer  112  may have high adhesion to the semiconductor light-emitting device chips  10 . 
         [0082]    In a case where the adhesive layer  112  is formed as a single layer, a filler such as white titanium oxide (TiO 2 ) may be dispersed in an adhesive resin. Also, a filler coated by metal including Ag or Al having high reflectance may be dispersed in the adhesive resin. The filler may function to reflect light and to increase thermal conductivity by forming a thermal path in the adhesive layer  112 . In a case where the adhesive layer  112  is formed as a multi-layer structure having the aforementioned three layers, the second adhesive layer  112   c  contacting the semiconductor light-emitting device chips  10  may be formed of a transparent adhesive material having high light-transmittance so as to transmit light emitted from the semiconductor light-emitting device chips  10 . The photo-reflection layer  112   b  may be a high reflective metal thin film coated on a top surface of the first adhesive layer  112   a  or a bottom surface of the second adhesive layer  112   c . For example, the photo-reflection layer  112   b  may be formed of a metal material including Ag or Al, and may have a thickness in the range several tens nm to several um. The first adhesive layer  112   a  arranged below the photo-reflection layer  112   b  and contacting the adhesion layer  111  is not required to have light-transmittance, so that the first adhesive layer  112   a  may be formed of an opaque adhesive material. The aforementioned fillers having high thermal conductivity may be dispersed in the first adhesive layer  112   a . The first adhesive layer  112   a  and the second adhesive layer  112   c  may have the same thickness or may have different thicknesses. In general, for heat radiation, the first adhesive layer  112   a  may have a thickness that is less than that of the second adhesive layer  112   c.    
         [0083]    After the semiconductor light-emitting device chips  10  are arrayed on the adhesive layer  112 , as illustrated in  FIG. 9  ( b ), a stencil mask  115  for screen printing is disposed on the semiconductor light-emitting device chips  10 . A structure of the stencil mask  115  is the same as the descriptions above. After the stencil mask  115  is disposed on the semiconductor light-emitting device chips  10 , a phosphor paste  30  is arranged on the stencil mask  115 . Afterward, the phosphor paste  30  is pushed and pressed by using a squeeze  120 , and by doing so, the phosphor paste  30  may be uniformly applied to top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . 
         [0084]    Afterward, the phosphor paste  30  is hardened by applying heat or light thereto, and then the stencil mask  115  is removed. By doing so, as illustrated in  FIG. 9  ( c ), a phosphor layer  35  may be formed on the top surface and the side surfaces of each semiconductor light-emitting device chip  10 . Afterward, when the adhesive layer  112  arranged below each semiconductor light-emitting device chip  10  is cut by performing a dicing process, as illustrated in  FIG. 9  ( d ), each semiconductor light-emitting device chip  10  may be separated from the carrier substrate  110  by using a holder  125 . Here, the adhesive layer  112  is adhered on a bottom surface of each semiconductor light-emitting device chip  10 . As described above, if the adhesion layer  111  is formed of a PSA that is curable by UV light, before the semiconductor light-emitting device chips  10  are separated, the UV light is irradiated to a bottom surface of the carrier substrate  110  to harden the adhesion layer  111 . In this case, when the adhesion layer  111  is hardened, the semiconductor light-emitting device chips  10  may be further easily separated. In a subsequent process, each of the separated semiconductor light-emitting device chips  10  is packaged to manufacture a white light-emitting device chip. 
         [0085]    According to the one or more embodiments, the masking member  117  is formed in an area between the semiconductor light-emitting device chips  10 , so that the phosphor is not applied to the area between the semiconductor light-emitting device chips  10 . However, it is also possible to completely and uniformly apply the phosphor to the carrier substrate  110  whereon the semiconductor light-emitting device chips  10  are arrayed. In this regard,  FIG. 11  illustrates a phosphor applying method, according to another embodiment of the present invention. 
         [0086]    First, referring to  FIG. 11  ( a ), a stencil mask  130  is illustrated, wherein the stencil mask  130  may be a metal mask having one opening  131  by which an inner portion is completely open. The opening  131  of the stencil mask  130  may correspond to an inner portion of a carrier substrate  110  whereon the semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed. Referring to  FIG. 11  ( b ), a frame portion of the stencil mask  130  may be disposed at side edges of the carrier substrate  110 . Thus, all of the semiconductor light-emitting device chips  10  on the carrier substrate  110  may be positioned in the opening  131  of the stencil mask  130 . 
         [0087]    Afterward, as illustrated in  FIG. 11  ( c ), a phosphor paste  30  is arranged in the opening  131 . Afterward, the phosphor paste  30  is uniformly applied to the semiconductor light-emitting device chips  10  and the carrier substrate  110  by pushing the phosphor paste  30  with a squeeze  120 . Here, the phosphor paste  30  may be applied to not only a top surface of each semiconductor light-emitting device chip  10  but also applied to an area between the semiconductor light-emitting device chips  10 . Referring to  FIG. 11  ( c ), only an adhesion layer  111  is disposed on the carrier substrate  110  but an adhesive layer  112  may be additionally formed on the adhesion layer  111 . After the phosphor paste  30  is uniformly applied thereto, as described above, the phosphor paste  30  is hardened so that a phosphor layer  35  (refer to  FIG. 12 ) may be formed. By doing so, the phosphor layer  35  may be formed not only on the top surface of each semiconductor light-emitting device chip  10  but also formed on the area between the semiconductor light-emitting device chips  10 . 
         [0088]    In the present embodiment, the phosphor layer  35  is also formed on electrode pads  11  and  12  that are formed on the top surface of each semiconductor light-emitting device chip  10 , and thus, after formation of the phosphor layer  35  is complete, it is necessary to remove the phosphor layer  35  on the electrode pads  11  and  12 . As illustrated in  FIG. 12 , the phosphor layer  35  may be removed by irradiating a laser to portions corresponding to the electrode pads  11  and  12 . For this removal, a laser  140  that emits light having a wavelength band absorbed by a binder resin forming the phosphor paste  30  may be used. For example, in a case of a silicon resin binder that is widely used, a CO 2  laser having a wavelength most absorbed by a silicon resin may be used. In this manner, by irradiating the laser  140  to the portions corresponding to the electrode pads  11  and  12 , the phosphor layer  35  on the electrode pads  11  and  12  is removed, so that the electrode pads  11  and  12  may be externally exposed. 
         [0089]    Afterward, in a final process, the semiconductor light-emitting device chips  10  may be independently separated by performing a dicing process. In the present embodiment, the phosphor layer  35  is even formed between the semiconductor light-emitting device chips  10 , so a blade may be used to separate the phosphor layer  35  in the dicing process. For example, referring to  FIG. 13  ( a ), the phosphor layer  35  formed between the semiconductor light-emitting device chips  10  is cut by using a blade  145 . The blade  145  may be a rotation-type blade that cuts the phosphor layer  35  while rotating, or may be a fix-type blade that presses the phosphor layer  35  with a sharp blade and then cuts the phosphor layer  35 . In order to prevent contamination due to particles of the phosphor layer  35 , which are generated during a cutting process, the phosphor layer  35  may be cut with zero kerf width. For this, the blade  145  may be a metal blade having undergone a treatment to improve a surface hardness. Also, instead of using the blade  145 , the dicing process may be performed by using a laser. In  FIG. 13  ( b ), the phosphor layer  35  is cut by using one of the aforementioned ways. Afterward, as described above, each semiconductor light-emitting device chip  10  may be separated from the carrier substrate  110  by using a holder  125 . 
         [0090]    Instead of a metal mask, a mesh mask may also be used as a stencil mask, wherein the mesh mask has an opening in which a metal mesh is formed.  FIG. 14  illustrates a method of applying a phosphor by using a mesh mask, according to another embodiment of the present invention. Referring to  FIG. 14  ( a ), a mesh  134  is formed in an opening  133  of a stencil mask  132 . Here, the opening  133  may correspond to an inner portion of a carrier substrate  110  whereon the semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed. Referring to (b) of  FIG. 14 , a frame portion of the stencil mask  132  may be disposed at side edges of the carrier substrate  110 . Thus, all of the semiconductor light-emitting device chips  10  on the carrier substrate  110  may be positioned in the opening  133  of the stencil mask  132 . 
         [0091]    Afterward, as illustrated in  FIG. 14  ( c ), a phosphor paste  30  is arranged on the mesh  134 . Afterward, the phosphor paste  30  is uniformly applied to the semiconductor light-emitting device chips  10  and the carrier substrate  110  by pushing the phosphor paste  30  through the mesh  134  by using a squeeze  120 . Here, the phosphor paste  30  may be applied to not only a top surface of each semiconductor light-emitting device chip  10  but also applied to an area between the semiconductor light-emitting device chips  10 . After the phosphor paste  30  is uniformly applied thereto, as described above, the phosphor paste  30  is hardened so that a phosphor layer  35  (refer to  FIG. 12 ) may be formed. After the phosphor layer  35  is formed, as described above, according to processes shown in  FIGS. 12 and 13 , the phosphor layer  35  on electrode pads  11  and  12  is removed and then a dicing process may be performed. 
         [0092]      FIG. 15  illustrates a phosphor applying method according to another embodiment of the present invention. The embodiment of  FIG. 15  is similar to the embodiment of  FIG. 14  but is different in that masking members  136  are formed in a mesh  134  of a stencil mask  135  so as to mask electrode pads  11  and  12 . Referring to  FIG. 15  ( a ), similar to the stencil mask  132  of  FIG. 14 , the stencil mask  135  has an opening  133  and the mesh  134 , and further has the masking members  136  functioning to mask the electrode pads  11  and  12 . Positions of the masking members  136  may correspond to positions of the electrode pads  11  and  12  on semiconductor light-emitting device chips  10 . 
         [0093]    Thus, as illustrated in  FIG. 15  ( b ) and ( c ), a phosphor paste  30  may be uniformly applied to a top surface of each semiconductor light-emitting device chip  10  and an area between the semiconductor light-emitting device chips  10  except for areas of the semiconductor light-emitting device chips  10  in which the electrode pads  11  and  12  are arranged. Here, each masking member  136  may have a height that is sufficient to directly contact the electrode pads  11  and  12  on each semiconductor light-emitting device chip  10 . Afterward, a process of  FIG. 12  is omitted, and a dicing process of  FIG. 13  may be performed. 
         [0094]    According to the embodiments of  FIGS. 11 ,  14  and  15 , each of the stencil masks  130 ,  132 , and  135  has only one opening  131  or  133 , but a stencil mask may have a plurality of openings corresponding to the semiconductor light-emitting device chips  10 . For example, a stencil mask  137  of  FIG. 16  has a plurality of openings  138 . Referring to  FIG. 16 , a mesh mask has openings  138  each in which a mesh is formed. However, the plurality of openings may also be applied to a metal mask in which a mesh is not formed. In a case of the stencil mask  115  of  FIG. 4 , the plurality of openings  118  correspond to the semiconductor light-emitting device chips  10 , respectively. However, in the stencil mask  137  of  FIG. 16 , one opening  138  may correspond to a plurality of the semiconductor light-emitting device chips  10 . In a case where the stencil mask  137  of  FIG. 16  is used, the semiconductor light-emitting device chips  10  may be grouped and arrayed so as to correspond to respective positions of the openings  138 . That is, the semiconductor light-emitting device chips  10  may be divided into a plurality of groups, and then may be arrayed at positions of the openings  138  which correspond to the groups, respectively. By doing so, an area to be applied with a phosphor paste may be reduced so that the phosphor paste may be further uniformly applied thereto. 
         [0095]      FIG. 17  illustrates a phosphor applying method according to another embodiment of the present invention. According to the phosphor applying method of  FIG. 17 , a phosphor paste is applied by using a spray coating method. Referring to  FIG. 17 , an adhesion layer  111  is formed on a carrier substrate  110 , the semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the adhesion layer  111  at regular gaps, and a spray device  180  is positioned above the semiconductor light-emitting device chips  10 . While only the adhesion layer  111  is illustrated in  FIG. 17 , an adhesive layer  112  may also be formed on the adhesion layer  111 . The spray device  180  sequentially moves above the semiconductor light-emitting device chips  10  and sprays a phosphor paste  45  on the semiconductor light-emitting device chips  10 . By doing so, the phosphor paste  45  may be sprayed on top surfaces of the semiconductor light-emitting device chips  10 , and areas between the semiconductor light-emitting device chips  10 . Here, the phosphor paste  45  may be formed by further adding a catalyst to a paste that is a mixture of a phosphor and a binder resin, so that an average viscosity of the phosphor paste  45  may be less than about 100 cps. Afterward, as described above, the phosphor paste  45  is hardened so as to form a phosphor layer  35 , and as illustrated in  FIGS. 12 and 13 , the phosphor layer  35  on the electrode pads  11  and  12  is removed and then a dicing process may be performed. 
         [0096]      FIG. 18  illustrates a phosphor applying method according to another embodiment of the present invention. Referring to  FIG. 18  ( a ), an adhesion layer  111  is formed on a carrier substrate  110 , and semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the adhesion layer  111  at regular gaps. Configurations and characteristics of the carrier substrate  110  and the adhesion layer  111  are the same as the descriptions above. 
         [0097]    Afterward, as illustrated in  FIG. 18  ( b ), a release film  150  having a phosphor film  50  adhered thereon is disposed above the semiconductor light-emitting device chips  10 . Here, the release film  150  is disposed in such a manner that the phosphor film  50  adhered on the release film  150  faces the semiconductor light-emitting device chips  10 . The release film  150  may be formed of a plastic material including polyethylene terephthalate (PET), polyvinyl chloride (PVC), or the like. The phosphor film  50  adhered on the release film  150  may be formed in a manner that a liquid thermocurable resin is disposed on the release film  150 , one or more types of phosphors are dispersed in the thermocurable resin according to a predetermined mixture ratio, and then the thermocurable resin is partially hardened. 
         [0098]    After the release film  150  is disposed above the semiconductor light-emitting device chips  10 , the phosphor film  50  is completely adhered on surfaces of the semiconductor light-emitting device chips  10  and the carrier substrate  110  by performing a general laminating process. While the phosphor film  50  is adhered on the surfaces of the semiconductor light-emitting device chips  10  and the carrier substrate  110 , the phosphor film  50  may be heated. By doing so, the phosphor film  50  may be easily moved from the release film  150  to the semiconductor light-emitting device chips  10  and the carrier substrate  110 , and the phosphor film  50  may be easily deformed, so that adhesion of the phosphor film  50  may be improved. Afterward, the phosphor film  50  that detaches from the release film  150  and moves to the semiconductor light-emitting device chips  10  and the carrier substrate  110  may be hardened. This laminating process may be performed in a vacuum atmosphere. By doing so, it is possible to prevent the air from collecting on surfaces of the semiconductor light-emitting device chips  10 , and an interface between a surface of the carrier substrate  110  and the phosphor film  50 . 
         [0099]    Afterward, as illustrated in  FIG. 18  ( c ), a phosphor layer  55  may be formed surrounding top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . When the formation of the phosphor layer  55  is complete, the phosphor layer  55  is patterned to expose electrode pads  11  and  12  (refer to  FIG. 1 ) on the top surfaces of the semiconductor light-emitting device chips  10 . For example, a mask  160  formed of a film or a glass substrate having a pattern of a plurality of openings  161  for transmission of light may be disposed on the semiconductor light-emitting device chips  10  and then UV light may be irradiated thereto. Positions of the openings  161  may correspond to positions of the electrode pads  11  and  12 . Then, the phosphor layer  55  on the electrode pads  11  and  12  may be exposed to the UV light and then removed. Thus, the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10  may be externally exposed. 
         [0100]    Next, as illustrated in  FIG. 18  ( d ), by performing a dicing process, the phosphor layer  55  between the semiconductor light-emitting device chips  10 , and the adhesion layer  111  below the semiconductor light-emitting device chips  10  are cut. Then, as illustrated in  FIG. 18  ( e ), each semiconductor light-emitting device chip  10  may be separated from the carrier substrate  110  by using a holder  125 . As described above, in a case where the adhesion layer  111  is formed of a PSA that is curable by UV light, before the semiconductor light-emitting device chips  10  are separated, the UV light is irradiated to a bottom surface of the carrier substrate  110  to harden the adhesion layer  111 . When the adhesion layer  111  is hardened, the semiconductor light-emitting device chips  10  may be further easily separated from the adhesion layer  111 . In a subsequent process, each of the separated semiconductor light-emitting device chips  10  is packaged to manufacture a white light-emitting device chip. 
         [0101]      FIG. 19  illustrates a phosphor applying method according to another embodiment of the present invention. Referring to  FIG. 19  ( a ), an adhesion layer  111  and an adhesive layer  112  are sequentially formed on a carrier substrate  110 . Then, semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the adhesive layer  112  at regular gaps. The adhesion layer  111  functions to temporarily fix the adhesive layer  112  thereon. Configurations and characteristics of the carrier substrate  110  and the adhesion layer  111  are the same as the descriptions above. Also, a configuration and characteristic of the adhesive layer  112  may be the same as those of the adhesive layer  112  described above with reference to  FIG. 9 . 
         [0102]    Afterward, a phosphor may be applied around the semiconductor light-emitting device chips  10  in the same manner described with reference to  FIG. 18 . That is, as illustrated in  FIG. 19  ( b ), a release film  150  having a phosphor film  50  adhered thereon is disposed above the semiconductor light-emitting device chips  10 . After the release film  150  is disposed above the semiconductor light-emitting device chips  10 , the phosphor film  50  is adhered on surfaces of the semiconductor light-emitting device chips  10  and the carrier substrate  110  by performing a laminating process. As described above, while the laminating process is performed, the release film  150  may be heated, and the laminating process may be performed in a vacuum atmosphere. Then, as illustrated in  FIG. 19  ( c ), a phosphor layer  55  may be formed surrounding top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . When the formation of the phosphor layer  55  is complete, the phosphor layer  55  is patterned to expose electrode pads  11  and  12  on the top surfaces of the semiconductor light-emitting device chips  10 . For example, UV is irradiated to the semiconductor light-emitting device chips  10  via a mask  160  having a plurality of openings  161 . By doing so, the phosphor layer  55  on the electrode pads  11  and  12  may be exposed to the UV light and then removed. 
         [0103]    Next, as illustrated in  FIG. 19  ( d ), by performing a dicing process, the phosphor layer  55  between the semiconductor light-emitting device chips  10 , and the adhesive layer  112  and the adhesion layer  111  below the semiconductor light-emitting device chips  10  are cut. Then, as illustrated in  FIG. 19  ( e ), each semiconductor light-emitting device chip  10  may be separated from the carrier substrate  110  by using a holder  125 . Here, the adhesive layer  112  is adhered on a bottom surface of each semiconductor light-emitting device chip  10 . In a subsequent process, each of the separated semiconductor light-emitting device chips  10  is packaged to manufacture a white light-emitting device chip. 
         [0104]      FIG. 20  illustrates a phosphor applying method according to another embodiment of the present invention. Referring to  FIG. 20  ( a ), an adhesion layer  111  and an adhesive layer  112  are sequentially formed on a carrier substrate  110 , and then, semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the adhesive layer  112  at regular gaps. Referring to  FIG. 20 , the adhesive layer  112  is further arranged on the adhesion layer  111  but in the present embodiment, the adhesive layer  112  may be omitted. That is, similar to the embodiment of  FIG. 18 , the semiconductor light-emitting device chips  10  may be arrayed on the adhesion layer  111  without the adhesive layer  112 . 
         [0105]    Afterward, as illustrated in  FIG. 20  ( b ), a release film  150  having a phosphor film  50  adhered thereon is disposed above the semiconductor light-emitting device chips  10 . In the present embodiment, the phosphor film  50  is patterned to have openings  51  at positions corresponding to electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . That is, a phosphor is not formed on the positions corresponding to electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . 
         [0106]    Afterward, as illustrated in  FIG. 20  ( c ), the phosphor film  50  is adhered on surfaces of the semiconductor light-emitting device chips  10  and the carrier substrate  110  by performing a laminating process. By doing so, a phosphor layer  55  may be formed surrounding top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . In the present embodiment, the openings  51  are previously patterned at the positions corresponding to the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 , so that the phosphor layer  55  is not formed on the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . Thus, it is not necessary to separately perform a process so as to expose the electrode pads  11  and  12 . 
         [0107]    Afterward, by performing a dicing process, the phosphor layer  55  between the semiconductor light-emitting device chips  10 , and the adhesive layer  112  and the adhesion layer  111  below the semiconductor light-emitting device chips  10  are cut. Then, as illustrated in  FIG. 20  ( d ), each semiconductor light-emitting device chip  10  may be separated from the carrier substrate  110  by using a holder  125 . In a subsequent process, each of the separated semiconductor light-emitting device chips  10  is packaged to manufacture a white light-emitting device chip. 
         [0108]      FIG. 21  illustrates a phosphor applying method according to another embodiment of the present invention. The embodiment of  FIG. 21  is different from the previous embodiments in that semiconductor light-emitting device chips  10  are first arrayed on a phosphor film  50  that is patterned to have openings  51 . That is, referring to  FIG. 21(   a ), the semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the phosphor film  50  adhered on a release film  150 . As described above, the phosphor film  50  is patterned to have the openings  51  at positions corresponding to electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . That is, a phosphor is not formed on the positions corresponding to the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . The semiconductor light-emitting device chips  10  are arrayed so that top surfaces of the semiconductor light-emitting device chips  10  whereon the electrode pads  11  and  12  are formed contact the phosphor film  50 . Here, the semiconductor light-emitting device chips  10  are aligned so that the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10  correspond to the openings  51  of the phosphor film  50 . According to the present embodiment, it is possible to avoid difficulty in simultaneously and exactly aligning the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10  and the openings  51  of the phosphor film  50 . 
         [0109]    Afterward, as illustrated in  FIG. 21(   b ), the semiconductor light-emitting device chips  10  are disposed on the carrier substrate  110  whereon an adhesion layer  111  and an adhesive layer  112  are formed. In this process, the semiconductor light-emitting device chips  10  are disposed in a manner that bottom surfaces of the semiconductor light-emitting device chips  10  contact the adhesive layer  112 . The phosphor film  50  and the release film  150  are still adhered on the top surfaces of the semiconductor light-emitting device chips  10 . Referring to  FIG. 21 , the adhesive layer  112  is further arranged on the adhesion layer  111  but the adhesive layer  112  may be omitted. That is, the semiconductor light-emitting device chips  10  may be disposed on the adhesion layer  111  without the adhesive layer  112 . 
         [0110]    Afterward, the phosphor film  50  is adhered on surfaces of the semiconductor light-emitting device chips  10  and the carrier substrate  110  by performing a laminating process. By doing so, as illustrated in (c) of  FIG. 21 , a phosphor layer  55  may be formed surrounding top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . In the present embodiment, the openings  51  are previously patterned at the positions corresponding to the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 , so that the phosphor layer  55  is not formed on the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . Thus, it is not necessary to separately perform a process so as to expose the electrode pads  11  and  12 . Afterward, by performing a dicing process, the phosphor layer  55  between the semiconductor light-emitting device chips  10 , and the adhesive layer  112  and the adhesion layer  111  below the semiconductor light-emitting device chips  10  are cut. Then, as illustrated in  FIG. 21  ( d ), each semiconductor light-emitting device chip  10  may be separated from the carrier substrate  110  by using a holder  125 . In a subsequent process, each of the separated semiconductor light-emitting device chips  10  is packaged to manufacture a white light-emitting device chip. 
         [0111]      FIGS. 22 and 23  illustrate a phosphor applying method according to another embodiment of the present invention. The present embodiment of  FIGS. 22 and 23  is different from the previous embodiments in that a laminating process may be omitted. First, referring to  FIG. 22  ( a ), an adhesion layer  111  is formed on a carrier substrate  110 , and a patterned phosphor film  50  is adhered on the adhesion layer  111 . The phosphor film  50  is patterned to have openings  51  at positions corresponding to electrode pads  11  and  12  of the semiconductor light-emitting device chips  10 . Afterward, the semiconductor light-emitting device chips  10  having the same light-emission characteristics are arrayed on the phosphor film  50 . The semiconductor light-emitting device chips  10  are disposed so that top surfaces of the semiconductor light-emitting device chips  10  whereon the electrode pads  11  and  12  are formed contact the phosphor film  50 . Here, the semiconductor light-emitting device chips  10  are aligned so that the electrode pads  11  and  12  of the semiconductor light-emitting device chips  10  correspond to the openings  51  of the phosphor film  50 . 
         [0112]    Next, as illustrated in  FIG. 22  ( b ), by performing a dicing process, the phosphor film  50  between the semiconductor light-emitting device chips  10 , and the adhesion layer  111  below the semiconductor light-emitting device chips  10  are cut. Then, as illustrated in  FIG. 22  ( c ), each semiconductor light-emitting device chip  10  and the phosphor film  50  adhered thereto may be separated from the carrier substrate  110  by using a holder  125 . 
         [0113]    Afterward, sequentially referring to  FIG. 23  ( a ), the holder  125  is vertically rotated so that the semiconductor light-emitting device chips  10  are disposed above the holder  125 . Accordingly, the phosphor film  50  is positioned above the semiconductor light-emitting device chips  10 . Then, as illustrated in  FIG. 23  ( b ) and ( c ), a clamping device  170  lifts up each semiconductor light-emitting device chip  10  from the holder  125 , and arranges each semiconductor light-emitting device chip  10  on a base substrate  200 . The base substrate  200  may be a lead frame of a light-emitting device package, or may be a printed circuit board (PCB) having a predetermined wiring. A collet  171  having a hollow cavity may be arranged on a front end of the clamping device  170 . The collet  171  may have a cavity having a shape corresponding to an outer frame shape of each semiconductor light-emitting device chip  10 . Thus, after the semiconductor light-emitting device chips  10  are arrayed on the base substrate  200 , as illustrated in  FIG. 23  ( d ), the collet  171  presses down the phosphor film  50 , each semiconductor light-emitting device chip  10  is accepted into the cavity of the collet  171 , and the phosphor film  50  is pressed down by the collet  171 , so that the phosphor film  50  may be coated on top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . Simultaneously, the phosphor film  50  may be hardened by irradiating heat or UV light thereto, so that a phosphor layer  55  may be formed on the top surfaces and side surfaces of the semiconductor light-emitting device chips  10 . 
         [0114]    It should be understood that the exemplary embodiments described therein should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as available for other similar features or aspects in other embodiments.

Technology Category: h