Patent Publication Number: US-2023154797-A1

Title: Methods of manufacturing semiconductor devices

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application claims benefit of priority to Korean Patent Application No. 10-2021-0158391 filed on Nov. 17, 2021, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. 
     BACKGROUND 
     The present disclosure relates to methods of manufacturing semiconductor devices. 
     In general, in a process of manufacturing a semiconductor device (e.g., a semiconductor package), a carrier substrate for supporting a product substrate may be used in order to suppress occurrence of warpage of the product substrate. As an adhesive layer between the product substrate and the carrier substrate, an energy-curable resin (e.g., an epoxy based film) such as a thermosetting resin may be used. However, there may be a problem in that a portion fixed by the adhesive layer during the process could be damaged, or in a detachment process from the product substrate, a complicated subsequent process may be required to remove an adhesive remaining on the product substrate. 
     SUMMARY 
     An aspect of the present disclosure is to provide a method of manufacturing a semiconductor device that includes easily detaching a carrier substrate from a product substrate. 
     According to an aspect of the present disclosure, a method of manufacturing a semiconductor device comprises forming a light blocking film configured to block first light within a first wavelength band on an edge region of an upper surface of a light-transmitting carrier substrate; forming a photosensitive adhesive layer on the upper surface of the light-transmitting carrier substrate to at least partially cover the light blocking film; bonding a product substrate to the upper surface of the light-transmitting carrier substrate using the photosensitive adhesive layer; partially curing the photosensitive adhesive layer by irradiating the first light through the light-transmitting carrier substrate, wherein a portion of the photosensitive adhesive layer overlapping the light blocking film is not cured; processing the product substrate to form a plurality of semiconductor devices, after the partially curing of the photosensitive adhesive layer; and cutting the product substrate such that the plurality of semiconductor devices are cut into a plurality of separate individual semiconductor devices. 
     According to an aspect of the present disclosure, a method of manufacturing a semiconductor device comprises forming a light blocking film blocking first light having a first wavelength on an edge region of an upper surface of a light-transmitting carrier substrate, the light blocking film having a first width; forming a photosensitive adhesive layer curable by the first light on the upper surface of the light-transmitting carrier substrate to at least partially cover the light blocking film; bonding a product substrate to the upper surface of the light-transmitting carrier substrate using the photosensitive adhesive layer; partially curing the photosensitive adhesive layer by irradiating the first light through the light-transmitting carrier substrate, wherein a portion of the photosensitive adhesive layer overlapping the light blocking film is not cured, and adheres to the product substrate; processing the product substrate to form a plurality of semiconductor devices after the partially curing of the photosensitive adhesive layer, wherein the product substrate has a dummy region surrounding the plurality of semiconductor devices, the dummy region having a second width equal to or wider than the first width; and cutting the plurality of semiconductor devices together with the product substrate, wherein the portion of the photosensitive adhesive layer overlapping the light blocking film is removed in the cutting. 
     According to an aspect of the present disclosure, a method of manufacturing a semiconductor device comprises forming a light blocking film configured to block first light within a first wavelength band on an edge region of an upper surface of a light-transmitting carrier substrate; forming a photosensitive adhesive layer on the upper surface of the light-transmitting carrier substrate to at least partially cover the light blocking film; bonding a product substrate to the upper surface of the light-transmitting carrier substrate using the photosensitive adhesive layer; partially curing the photosensitive adhesive layer by irradiating the first light through the light-transmitting carrier substrate, wherein a portion of the photosensitive adhesive layer overlapping the light blocking film is not cured, but adheres to the product substrate; processing the product substrate to form a plurality of semiconductor devices after the partially curing of the photosensitive adhesive layer; attaching adhesive tape to an upper surface of the product substrate on which the plurality of semiconductor devices are formed; curing the portion of the photosensitive adhesive layer overlapping the light blocking film by irradiating second light having a second wavelength that is different from the first wavelength through the light blocking film; and detaching the product substrate from the light-transmitting carrier substrate. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The above and other aspects, features, and advantages of the present disclosure will be more clearly understood from the following detailed description, taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a cross-sectional view illustrating a carrier structure according to an embodiment of the present disclosure. 
         FIG.  2    is a plan view illustrating the carrier structure of  FIG.  1   . 
         FIGS.  3 A and  3 B  are cross-sectional views illustrating a portion (a bonding process of an object to be processed) of a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. 
         FIG.  4    is a plan view illustrating  FIG.  3 B , taken along line I-I′. 
         FIGS.  5 A to  5 E  are cross-sectional views illustrating another portion of a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. 
         FIGS.  6 A and  6 B  are cross-sectional views illustrating a cutting process in a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. 
         FIGS.  7 A to  7 D  are plan views illustrating a carrier structure according to various embodiments of the present disclosure. 
         FIG.  8    is a plan view illustrating a carrier structure according to an embodiment of the present disclosure. 
         FIGS.  9 A to  9 D  are cross-sectional views illustrating a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. 
         FIGS.  10 A and  10 B  are plan views illustrating a carrier structure according to various embodiments of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. 
       FIG.  1    is a cross-sectional view illustrating a carrier structure according to an embodiment of the present disclosure, and  FIG.  2    is a plan view illustrating the carrier structure of  FIG.  1   . 
     Referring to  FIGS.  1  and  2   , a carrier structure  120  according to the present embodiment may include a light-transmitting carrier substrate  121 , and a light blocking film  125  on an edge region  121 T 1  of an upper surface  121 T of the light-transmitting carrier substrate  121 . The upper surface  121 T of the light-transmitting carrier substrate may also have an inner region  121 T 2 . A photosensitive adhesive layer  130  may be on an upper surface of the carrier structure  120  to at least partially cover the light blocking film. 
     The carrier structure  120  may be used as a temporary support for supporting a product substrate  200 S (indicated by a dotted line) to manufacture a semiconductor device (e.g., a semiconductor package) during a subsequent processing operation. In some embodiments, the product substrate  200 S may be a panel or a wafer for a plurality of semiconductor packages. The carrier structure  120  employed in the present embodiment has been illustrated in a form having a rectangular shape corresponding to a shape of the product substrate  200 S, to support the product substrate  200 S, which may be a rectangular panel, but the present disclosure is not limited thereto. In other embodiments, the carrier structure  120  and may also have a corresponding circular shape for supporting the product substrate  200 S, which may be a wafer (see  FIG.  8   ). 
     The photosensitive adhesive layer  130  may include a photosensitive adhesive resin that may be at least partially cured by irradiating light (e.g., ultraviolet light) of a specific wavelength band such that adhesive force maintained during a processing process is lost or weakened. For example, the photosensitive adhesive layer  130  may include photosensitive polyimide (PSPI). 
     The light-transmitting carrier substrate  121  may be a substrate capable of transmitting light having a wavelength for at least partially curing the photosensitive adhesive layer  130 . For example, the light-transmitting carrier substrate  121  may be a glass substrate. The light blocking film  125  may be a pattern of a material capable of blocking some or all of first light having a first wavelength (e.g., Ultraviolet A (UV-A) or Ultraviolet B (UV-B)). The first wavelength may be within a wavelength band for at least partially curing the photosensitive adhesive layer  130 . For example, the first light may be light in a UV-A band (e.g., 320 nanometers (nm) to 400 nm) or light in a UV-B band (e.g., 280 nm to 320 nm). 
     The photosensitive adhesive layer  130  may include a first portion  130   a  located on the light blocking film  125 , and a second portion  130   b  located in a region of the upper surface of the light-transmitting carrier substrate  121  surrounded by the light blocking film  125 . It will be understood that “an element A surrounds an element B” (or similar language) as used herein means that the element A is at least partially around the element B but does not necessarily mean that the element A completely encloses the element B. The light blocking film  125  may be configured to block the first light for curing the photosensitive adhesive layer  130 . For example, the light blocking film  125  may be a metal material or a polymer material, and in some embodiments, may include a wavelength selective blocking/transmitting material. 
     When the first light is irradiated onto a lower surface  121 L of the light-transmitting carrier substrate  121 , the first portion  130   a  of the photosensitive adhesive layer  130  may maintain adhesive force due to blocking of the first light by the light blocking film  125 , and the second portion  130   b  of the photosensitive adhesive layer  130  may be cured by irradiation of the first light to lose or weaken adhesive force. 
     Since the first portion  130   a  of the photosensitive adhesive layer  130  may be adhered to the edge region  121 T 1  of the product substrate  200 S, the product substrate  200 S may be stably supported on the carrier substrate  121  even with a relatively small contact area during a subsequent processing operation. The product substrate  200 S may have a dummy region surrounding one or more regions of a plurality of semiconductor devices to be manufactured from the product substrate  200 S, and the light blocking film  125  may have a width equal to or narrower than a width of the dummy region (see  FIG.  3 B ). This dummy region may be provided as a clamping region for handling the product substrate  200 S during a subsequent processing operation. For example, the width of the light blocking film  125  may be in a range of 5 millimeters (mm) to 30 mm in some embodiments. 
     According to the present embodiment, a portion (e.g.,  130   b ) of the photosensitive adhesive layer  130  to be cured which contacts one or more of the regions of the plurality of semiconductor devices (i.e., the semiconductor packages) of the product substrate  200 S may have weak or virtually absent adhesive force. Therefore, damage due to mechanical impact in a subsequent processing operation, contamination due to residual adhesive material after detachment, or the like may be effectively prevented. 
     In the present embodiment, although the light blocking film  125  is illustrated to be formed of only an edge pattern continuously surrounding the edge region, the light blocking film  125  may further include a pattern extending into the inner region  121 T 2  (please refer to  FIGS.  7 A to  7 C ) or the edge region, or may include other types of edge patterns non-continuously surrounding the edge region (see  FIG.  7 D ). 
     In some embodiments, the light blocking film  125  may be configured to pass second light having a second wavelength therethrough, wherein the second wavelength is different from the first wavelength. The second wavelength may be within a wavelength band (e.g., an ultraviolet band) capable of at least partially curing the photosensitive adhesive layer  130 . When the second light is irradiated onto the lower surface  121 L of the light-transmitting carrier substrate  121  after the subsequent processing operation is completed, the second light may pass through the light-blocking film  125  to be irradiated onto the first portion  130   a  of the photosensitive adhesive layer  130 . Therefore, the first portion  130   a  may be at least partially cured similarly to the second portion  130   b  to lose or weaken adhesive force. As a result, the product substrate  200 S may be easily detached from the carrier structure  120 . 
     The photosensitive adhesive layer  130  may be a bonding layer curable by ultraviolet light of UV-A or UV-B band. In an embodiment, the light blocking film  125  may be configured to selectively block first light of the UV-A band (e.g., 320 nm to 400 nm), and may be configured to selectively pass second light of the UV-B band (e.g., 280 nm to 320 nm) therethrough. The light blocking film  125  may include, for example, butylmethoxydibenzoylmethane, dibenzoylmethane, oxybenzene, benzophenone-3, benzophenone-8, mexoryl-SX, phenylbenzimidazole sulfonic acid (PSA), or avobenzone. In another embodiment, the light blocking film  125  may be configured to selectively block first light of the UV-B band (e.g., 280 nm to 320 nm), and may be configured to selectively pass second light of the UV-A band (e.g., 320 nm to 400 nm) therethrough. The light blocking film  125  may include, for example, octocrylene, para-aminobenzoic acid, octyl methoxycinnamate, octyl salicylate, or ethylhexyl triazone. 
     As such, a detachment process of the product substrate  200 S may be implemented by UV irradiation of the first portion  130   a  using the light blocking film  125  (please refer to  FIG.  6 A ), but the present disclosure is not limited thereto. The product substrate  200 S may be also implemented by removing the first portion in a cutting process for forming a separate individual semiconductor device (see  FIG.  5 E ). 
     Hereinafter, a method of manufacturing a semiconductor device (or a semiconductor package) using the carrier structure illustrated in  FIGS.  1  and  2    will be described in detail. 
       FIGS.  3 A and  3 B  are cross-sectional views illustrating a portion (a bonding process of an object to be processed) of a method of manufacturing a semiconductor package according to an embodiment of the present disclosure, and  FIGS.  5 A to  5 E  are cross-sectional views illustrating another portion of a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. In this case, a manufacturing method according to the present embodiment illustrates a manufacturing method of a so-called “panel level package.” Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in  FIGS.  1  and  2   , unless otherwise specifically stated. 
     Referring to  FIG.  3 A , a product substrate  200 S may be bonded to a first carrier structure  120 _ 1  to which a photosensitive adhesive layer  130  is applied. 
     The product substrate  200 S employed in the present embodiment may include a “panel” for manufacturing a plurality of semiconductor packages. Such a panel may be provided on a first adhesive tape  310 . The product substrate  200 S illustrated in  FIG.  3 A  may be manufactured through the following processes. 
     First, a frame  210  having a plurality of cavities  210 H may be disposed on the first adhesive tape  310 . The frame  210  employed in the present embodiment may include insulating members  211   a  and  211   b  having a first surface  210 A and a second surface  210 B, located opposite to each other, and may have a wiring structure connecting the first surface  210 A and the second surface  210 B. The insulating members may include first and second insulating layers  211   a  and  211   b , and the wiring structure may include three-layered wiring patterns  212   a ,  212   b , and  212   c , and wiring vias  213   a  and  213   b  connecting them. For example, the first adhesive tape  310  may be a tape having adhesion, including an epoxy resin. The first adhesive tape  310  may be attached to a lower surface of the first insulating layer  211   a . 
     Next, a semiconductor chip  220  may be in each of the cavities  210 H. The semiconductor chip  220  may include a semiconductor body  221  having an active surface such as silicon (Si), germanium (Ge), or gallium arsenide (GaAs), a contact pad  225  formed on the active surface, and a passivation layer  222  on the active surface and exposing the contact pad  225 . 
     Next, an encapsulant  230  for encapsulating the semiconductor chip  220  may be formed. The encapsulant  230  may extend to an upper surface of the frame  210 . In the present embodiment, although the encapsulant  230  is illustrated to have an upper surface, substantially flat with a third wiring pattern  212   c , the encapsulant  230  may be formed to at least partially cover a portion of the third wiring pattern  212   c . 
     The product substrate  200 S may have a dummy region  200 E surrounding a plurality of semiconductor package regions  200 . As described above, the dummy region  200 E may be provided as a region for handling the product substrate  200 S in a subsequent processing operation. In addition, the product substrate  200 S may have a margin region  200 M located between the plurality of semiconductor package regions  200 . This margin region  200 M may be provided as a scribe lane for cutting into separate individual packages. 
     As described in  FIGS.  1  and  2   , a light blocking film  125  may be formed on an edge region  121 T 1  of an upper surface  121 T of a light-transmitting carrier substrate  121 , and a photosensitive adhesive layer  130  may be formed on the upper surface  121 T of the light-transmitting carrier substrate  121  to cover the light blocking film  125 . 
     The product substrate  200 S may be bonded to the photosensitive adhesive layer  130 . The photosensitive adhesive layer  130  may have adhesive force for supporting the product substrate  200 S during a subsequent process. The photosensitive adhesive layer  130  may be formed using various processes such as a spin coating process, a roll coating process, or the like. For example, the photosensitive adhesive layer  130  may include photosensitive polyimide. 
     Next, referring to  FIG.  3 B , a photosensitive adhesive layer  130 ′ may be partially cured by irradiating first light having a first wavelength through a lower surface  121 L of a light-transmitting carrier substrate  121 . 
     The photosensitive adhesive layer  130 ′ may include a first portion  130   a  located on a light blocking film  125 , and a second portion  130   b ′ located on an upper surface  121 T of the light-transmitting carrier substrate  121  surrounded by the light blocking film  125 . The light blocking film  125  may be configured to block the first light for curing the photosensitive adhesive layer  130 ′. The first light may cure the second portion  130   b ′ of the photosensitive adhesive layer  130 ′ through the lower surface  121 L of the light-transmitting carrier substrate  121  to lose or weaken adhesive force. 
     The first portion  130   a , a portion of the photosensitive adhesive layer  130 ′ overlapping the light blocking film  125 , may not be cured. As used herein, when element A is said to “overlap” or is “overlapping” element B, it may refer to the situation where element A is said to extend over or past, and cover a part of, element B in a given direction. Note that element A may overlap element B in a first direction, but may or may not overlap element B in a second direction. For example, since the first light toward the first portion  130   a  of the photosensitive adhesive layer  130 ′ may be blocked by the light blocking film  125 , adhesive force of the uncured first portion  130   a  may be maintained. A width Wa of the light blocking film  125  may be equal to or narrower than a width W1 of a dummy region  200 E. For example, the width of the light blocking film  125  may be in a range of 5 mm to 30 mm. A width W2 of a margin region  200 M may be narrower than the width W1 of the dummy region  200 E. 
       FIG.  4    is a plan view illustrating  FIG.  3 B , taken along line I-I′. Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in previous Figures, unless otherwise specifically stated. 
     Referring to  FIG.  4   , the first portion  130   a  overlapping the light blocking film  125  may maintain adhesive force in an uncured state, and the second portion  130   b ′ that does not overlap the light blocking film  125  may be cured to lose or weaken adhesive force. Although the first portion  130   a  has a relatively small area, the first portion  130   a  may surround an edge region. Therefore, the product substrate  200 S may be stably maintained on a first carrier structure  120 _ 1  in a subsequent processing operation. 
     Next, after the partial curing is performed, a processing operation of the product substrate  200 S for forming the plurality of semiconductor package regions  200  may be performed (please refer to  FIGS.  5 A to  5 D ). Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in previous Figures, unless otherwise specifically stated. 
     First, referring to  FIG.  5 A , after a first adhesive tape  310  is removed from a product substrate  200 S, a first redistribution structure  240  may be formed on the removed surface of the product substrate  200 S. 
     The formation of the first redistribution structure  240  may be performed by forming a first insulating film  241  using a lamination process or a coating process, forming a via hole in the first insulating film  241 , and forming a first redistribution layer  245 , e.g., a first redistribution pattern  242  and a first redistribution via  243 , using an electroplating process or an electroless plating process. When a photo-imageable dielectric (PID) material is used as the first insulating film  241 , via-holes may be formed as a fine pitch using a photolithography process. The first redistribution structure  240  may include a plurality of first insulating films  241  and a plurality of first redistribution layers  245  respectively formed on the plurality of first insulating films  241 . 
     Additionally, a passivation layer  260  and an underbump metal layer (UBM layer)  270  may be formed. The passivation layer  260  may be formed on a lower surface of the first redistribution structure  240 , a plurality of openings exposing a portion of the first redistribution layer  245  may be formed in the passivation layer  260 , and the underbump metal layer  270  may be formed on the passivation layer  260  to be connected to a region of the first redistribution layer  245  through the plurality of openings. 
     Next, referring to  FIG.  5 B , a second carrier structure  120 _ 2  may be bonded to the product substrate  200 S. 
     This process may be introduced when a second redistribution structure (see, e.g.,  250  of  FIG.  5 D ), which may be a backside redistribution layer, is additionally formed. Similar to the first carrier structure  120 _ 1  of  FIG.  3 A  described above, a light blocking film  125  may be formed on an edge region  121 T 1  of an upper surface  121 T of a light-transmitting carrier substrate  121 , and a photosensitive adhesive layer  130 ′ may be formed on the upper surface  121 T of the light-transmitting carrier substrate  121  to cover the light blocking film  125 . Next, the second carrier structure  120 _ 2  may be bonded to an upper surface of the product substrate  200 S, and a surface on which the first redistribution structure  240  is formed on the photosensitive adhesive layer  130 ′. Next, a second portion  130   b ′ of the photosensitive adhesive layer  130 ′ may be at least partially cured by irradiating the first light through the light-transmitting carrier substrate  121 , and the second carrier structure  120 _ 2  and the product substrate  200 S may be bonded by a first portion  130   a  overlapping the light blocking film  125 . 
     Next, referring to  FIG.  5 C , the product substrate  200 S bonded to the second carrier structure  120 _ 2  may be detached from the first carrier structure  120 _ 1 . 
     The detachment of the first carrier structure  120 _ 1  may be performed by irradiating second light having a second wavelength that is different from the first wavelength through the light blocking film  125  to at least partially cure a portion of the photosensitive adhesive layer  130 ″ overlapping the light blocking film  125 , for example, the first portion  130   a ′. 
     The photosensitive adhesive layer  130  may be a bonding layer that may be curable in the ultraviolet band. 
     In some embodiments, the first light may be light of the UV-A band, and the second light may be light of the UV-B band. For example, the light blocking film  125  may include butylmethoxydibenzoylmethane, dibenzoylmethane, oxybenzene, benzophenone-3, benzophenone-8, mexoryl SX, phenylbenzimidazole sulfonic acid, or avobenzone. In another embodiment, the first light may be light of the UV-B band, and the second light may be light of the UV-A band. For example, the light blocking film  125  may include octocrylene, para-aminobenzoic acid, octylmethoxycinnamate, octylsalicylate, or ethylhexyltriazone. 
     Next, referring to  FIG.  5 D , a second redistribution structure  250  may be formed on a surface from which the first carrier structure  120 _ 1  is removed. 
     Formation of the second redistribution structure  250  may include forming a second insulating film  251 , forming a via hole in the second insulating film  251 , and forming a second redistribution layer  255 , e.g., a second redistribution pattern  252  and a second redistribution via  253 . The second insulating film  251  may include a PID material. 
     As described above, a portion (e.g.,  130   b ′) of the photosensitive adhesive layer  130  to be cured which contacts a plurality of semiconductor package regions  200  of the product substrate  200 S may have weak or virtually absent adhesive force. Therefore, even though mechanical impact is generated in the formation of the second redistribution structure  250 , damage to the first redistribution structure  240  (in particular, the UBM layer  270 ) previously formed in each of the plurality of semiconductor package regions  200  may be prevented. 
     Next, referring to  FIG.  5 E , the product substrate  200 S illustrated in  FIG.  5 D  may be cut into a plurality of separate individual semiconductor devices  200 . 
     In this cutting process, a portion (e.g.,  130   a ) of the photosensitive adhesive layer  130  overlapping the light blocking film  125  may be partially removed. Since the previously cured second portion  130   b ′ has previously lost adhesive force, an individualized semiconductor package  200  may be detached from the first portion  130   a  still having adhesive force by the partial removal of this process. 
     A process of additionally separating using irradiation of another ultraviolet light may be performed similarly to the process of  FIG.  5 C , without detaching from the second carrier structure by the cutting process.  FIGS.  6 A and  6 B  are cross-sectional views illustrating a cutting process in a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in previous figures, unless otherwise specifically stated. 
     Referring to  FIG.  6 A , a second adhesive tape  320  may be attached to an upper surface of a product substrate  200 S on which a plurality of semiconductor packages  200  are formed, and a first portion  130   a ′ of a photosensitive adhesive layer  130 ′ may be at least partially cured by irradiating second light within a second wavelength that is different from the first wavelength through a light blocking film  125 . Since adhesive force of a previously cured second portion  130   b ′ is lost, the photosensitive adhesive layer  130 ′ and the product substrate  200 S may be detached by additional curing of the first portion  130   a ′. 
     Next, referring to  FIG.  6 B , after detaching the product substrate  200 S from a light-transmitting carrier substrate  121 , the product substrate  200 S may be cut into the plurality of semiconductor packages  200 . 
     As described above, a portion (e.g.,  130   b ′) of the photosensitive adhesive layer  130 ′ to be cured which contacts the plurality of semiconductor packages  200  of the product substrate  200 S may have weak or virtually absent adhesive force. Therefore, damage or contamination of the first redistribution structure  240  (in particular, the UBM layer  270 ) previously formed in each of the semiconductor package regions  200  may be effectively prevented. 
       FIGS.  7 A to  7 D  are plan views illustrating a carrier structure according to various embodiments of the present disclosure. 
     Referring to  FIG.  7 A , it can be understood that a carrier structure  120 A according to the present embodiment is similar to that illustrated in  FIGS.  1  and  2   , except that a light blocking film  125  has an inner pattern  125   b  extending to an inner region  121 T 2  in addition to an edge pattern  125   a , as illustrated in  FIGS.  1  and  2   . Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in  FIGS.  1  and  2   , unless otherwise specifically stated. 
     The light blocking film  125  employed in the present embodiment may be formed on an upper surface  121 T of a light-transmitting carrier substrate  121  having a rectangular structure similar to that of the previous embodiments, and may include an edge pattern  125   a  formed along an edge region  121 T 1  of the upper surface  121 T, and an inner pattern  125   b  extending to the inner region  121 T 2  surrounded by the edge region. The inner pattern  125   b  may be configured to connect two opposite sides to intersect the inner region  121 T 2  of the upper surface. 
     The light blocking film  125  may have a width equal to or narrower than the width W1 of the dummy region ( 200 E of  FIG.  3 B ). For example, the width of the light blocking film  125  may be in a range of 5 mm to 30 mm. In some embodiments, the width of the light blocking film  125  may range of 10 mm to 25 mm. The inner pattern  125   b  may have a width different from a width of the edge pattern  125   a . 
     Referring to  FIG.  7 B , it can be understood that a carrier structure  120 B according to the present embodiment is similar to that illustrated in  FIGS.  1  and  2   , except that a light blocking film  125  has first and second inner patterns  125   b   1  and  125   b   2  extending and intersecting in different directions (e.g., in a vertical direction) in an inner region, other than an edge pattern  125   a . Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in  FIGS.  1  and  2   , unless otherwise specifically stated. 
     The light blocking film  125  employed in the present embodiment may include an edge pattern  125   a  formed along an edge region of an upper surface  121 T, a first inner pattern  125   b   1  extending in a first direction, and a second inner pattern  125   b   2  extending in a second direction perpendicular to the first direction. Each of the first and second inner patterns  125   b   1  and  125   b   2  may have a width Wb that is narrower than a width Wa of the edge pattern  125   a . As illustrated in  FIG.  3 B , a product substrate  200 S to be bonded may include a dummy region  200 E surrounding a plurality of semiconductor package regions  200 , and a margin region  200 M located between the plurality of semiconductor packages  200 . 
     The edge pattern  125   a  may have a width equal to or narrower than the width W1 of the dummy region  200 E. For example, the width of the edge pattern  125   a  may be in a range of 5 mm to 30 mm. In some embodiments, the width of the edge pattern  125   a  may range of 10 mm to 25 mm. The inner pattern  125   b  may have a width Wb that is narrower than a width Wa of the edge pattern  125   a . Each of the first and second inner patterns  125   b   1  and  125   b   2  may have a width that is equal to or narrower than a width of the margin region  200 M. Also, the first and second inner patterns  125   b   1  and  125   b   2  may be arranged to overlap the margin region  200 M, respectively. 
     Referring to  FIG.  7 C , it can be understood that a carrier structure  120 C according to the present embodiment is similar to that illustrated in  FIGS.  1  and  2   , except that a light blocking film  125  has first and second inner patterns  125   b   1  and  125   b   2  extending and intersecting in different directions (e.g., in a vertical direction) in an inner region, other than an edge pattern  125   a , and the second inner patterns  125   b   2  may be arranged as a plurality of second inner patterns  125   b   2 . Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in  FIGS.  1  and  2   , unless otherwise specifically stated. 
     The light blocking film  125  employed in the present embodiment, similarly to the embodiment illustrated in  FIG.  7 B , may include an edge pattern  125   a  formed along an edge region of an upper surface  121 T, a first inner pattern  125   b   1  extending in a first direction, and a second inner pattern  125   b   2  extending in a second direction that is perpendicular to the first direction. The second inner patterns  125   b   2  may be arranged as a plurality of second inner patterns  125   b   2 . The first inner pattern  125   b   1  as well as the plurality of second inner patterns  125   b   2  may be arranged to respectively overlap a margin region  200 M. The first and second inner patterns  125   b   1  and  125   b   2  may have a width that is equal to or narrower than a width of the margin region  200 M. In addition, each of the first and second inner patterns  125   b   1  and  125   b   2  may have a width that is narrower than a width Wa of the edge pattern  125   a , and may have different widths Wb1 and Wb2, as in the present embodiment. 
     In the present embodiment, although an example in which the second inner pattern  125   b   2  is provided in plural is illustrated, the first inner pattern  125   b   1  may be provided in plural and the two inner patterns  125   b   1  and  125   b   2  may be provided in plural. 
     Referring to  FIG.  7 D , it can be understood that a carrier structure  120 D according to the present embodiment is similar to that illustrated in  FIGS.  1  and  2   , except that a light blocking film  125 ′ has a discontinuous pattern. Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in  FIGS.  1  and  2   , unless otherwise specifically stated. 
     Unlike the embodiments of  FIGS.  1  and  2   , the light blocking film  125 ′ employed in the present embodiment may. Such a discontinuous pattern may be similarly applied to the inner patterns  125   b ,  125   b   1 , and  125   b   2  employed in the previous embodiments. 
     The carrier structure  120  according to the previous embodiments is illustrated to form a rectangular shape corresponding to a shape of the product substrate  200 S as a rectangular panel, but the present disclosure is not limited thereto, and may have a corresponding circular shape for supporting the product substrate, which may be a wafer. 
       FIG.  8    is a plan view illustrating a carrier structure according to an embodiment of the present disclosure. 
     Referring to  FIG.  8   , it can be understood that a carrier structure  120 E according to the present embodiment is similar to that illustrated in  FIGS.  1  and  2   , except that a light-transmitting carrier substrate  121  on which a light blocking film  125  is formed has a circular upper surface  121 T. Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in  FIGS.  1  and  2   , unless otherwise specifically stated. 
     The light-transmitting carrier substrate  121  employed in the present embodiment may have a circular planar shape corresponding to a wafer, which may be a product substrate. A product substrate on which the carrier structure  120 E according to the present embodiment is used may be a wafer on which a plurality of semiconductor devices for a so-called “wafer level package” are implemented. The light blocking film  125  may be continuously formed along an edge region of the upper surface  121 T of the light-transmitting carrier substrate  121  having a circular shape. The light blocking film  125  is not limited to a continuous edge pattern, and may have other patterns similar to the various patterns illustrated in the previous embodiments ( FIGS.  7 A to  7 B ). 
       FIGS.  9 A to  9 D  are cross-sectional views illustrating a method of manufacturing a semiconductor package according to an embodiment of the present disclosure. Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120  illustrated in previous Figures, unless otherwise specifically stated. 
     Referring to  FIG.  9 A , a semiconductor wafer  400 W may be bonded to a carrier structure  120 E to which a photosensitive adhesive layer  130  is applied. 
     The semiconductor wafer  400 W employed in the present embodiment may be a “semiconductor wafer” on which a plurality of first semiconductor chips  400 A may be implemented. In the present embodiment, each of the plurality of first semiconductor chips  400 A may have a structure provided as a base substrate of a semiconductor package. Each of the plurality of first semiconductor chips  400 A may include a semiconductor substrate  410  having an active surface and a non-active surface located opposite thereto, a first pad  420  on the active surface of the semiconductor substrate  410 , a second pad  430  on the non-active surface of the substrate  410 , and a through-electrode  450  passing through the semiconductor substrate  410  and connecting the first and second pads  420  and  430 . A connection bump  460  such as a solder ball may be formed on the first pad  420  of the first semiconductor chip  400 A. In the present embodiment, although the first semiconductor chips  400 A is illustrated to be introduced as the base substrates, the first semiconductor chips  400 A may be implemented as an interposer having a wiring structure. 
     As illustrated in  FIG.  9 A , the semiconductor wafer  400 W on which the connection bump  460  is formed may be attached to the photosensitive adhesive layer  130  on the carrier structure  120 E. The semiconductor wafer  400 W may be attached to the photosensitive adhesive layer  130  such that the connection bump  460  faces the carrier structure  120 E. The connection bump  460  may be covered by the photosensitive adhesive layer  130 . Among lower surfaces of the semiconductor wafer  400 W, a lower surface on which the connection bump  460  is not formed may be bonded to the photosensitive adhesive layer  130 . 
     As described in the previous embodiment ( FIG.  3 A ), a light blocking film  125  may be formed on an edge region  121 T 1  of an upper surface  121 T of a light-transmitting carrier substrate  121 , and a photosensitive adhesive layer  130  may be formed on the upper surface  121 T of the light-transmitting carrier substrate  121  to at least partially cover the light blocking film  125 . The semiconductor wafer  400 W may be bonded to the photosensitive adhesive layer  130 . 
     Next, referring to  FIG.  9 B , the photosensitive adhesive layer  130  may be partially cured by irradiating light within a first wavelength band through a lower surface of the light-transmitting carrier substrate  121 . 
     The photosensitive adhesive layer  130  may include a first portion  130   a  located on the light blocking film  125 , and a second portion  130   b  located on a region of the upper surface of the light-transmitting carrier substrate  121  surrounded by the light blocking film  125 . The light blocking film  125  may be configured to block the first light for curing the photosensitive adhesive layer  130 . The first light may at least partially cure the second portion  130   b ′ of the photosensitive adhesive layer  130  through the lower surface of the light-transmitting carrier substrate  121  to lose or weaken adhesive force. 
     The first portion  130   a , which may be a portion of the photosensitive adhesive layer  130  overlapping the light blocking film  125 , may not be cured. For example, since the first light toward the first portion  130   a  of the photosensitive adhesive layer  130  may be blocked by the light blocking film  125 , adhesive force of the uncured first portion  130   a  may be maintained. A width of the light blocking film  125  may be equal to or narrower than a width of a dummy region  400 E. The semiconductor wafer  400 W may have a margin region  400 M located between the plurality of first semiconductor chips  400 A. In the cutting process for singulation, the margin region  400 M may be removed. A width of a margin region  200 M may be narrower than a width of the dummy region  400 E. 
     Referring to  FIG.  9 C , one or more second semiconductor chips  400 B may be stacked on the semiconductor wafer  400 W. 
     The second semiconductor chips  400 B may be obtained by cutting a second semiconductor wafer on which a plurality of semiconductor chips are manufactured similarly to the first semiconductor wafer  400 W. In the present embodiment, the second semiconductor wafer may be a semiconductor wafer including individual devices of the same type as that of the first semiconductor wafer  400 W. For example, the plurality of second semiconductor chips  400 B may include a second semiconductor substrate  410 , first and second pads  420  and  430 , a through-electrode  450 , and a connection bump  460 . Each of the plurality of second semiconductor chips  400 B may be stacked on the first semiconductor chip  400 A of the first semiconductor wafer  400 W by using a non-conductive film  480 . The first pad  420  of each of the plurality of second semiconductor chips  400 B may be connected to the second pad  430  of the first semiconductor chips by the connection bump  460 . 
     Referring to  FIG.  9 D , similarly to the previous stacking process on the second semiconductor chips  400 B, one or more third semiconductor chips  400 C and one or more fourth semiconductor chips  400 D may be sequentially stacked, respectively, on the semiconductor wafer  400 W. A molding portion  490  may be formed to cover the second to fourth semiconductor chips  400 B,  400 C, and  400 D. A stacking process of the second to fourth semiconductor chips  400 B,  400 C, and  400 D may be performed by a reflow process or a thermal compression process. The molding portion  490  may include, for example, an epoxy mold compound (EMC). In a cutting process for singulation, the semiconductor wafer  400 W together with the molding portion  490  may be cut into a semiconductor package  400 . 
     In this cutting process, a portion (e.g.,  130   a ) of the photosensitive adhesive layer  130  overlapping the light blocking film  125  may be partially removed. Since the previously cured second portion  130   b ′ has previously lost adhesive force, the individualized semiconductor package  200  may be detached from the first portion  130   a  having adhesive force by the partial removal of the present process. 
     The first to fourth semiconductor chips  400 A,  400 B,  400 C, and  400 D employed in the present embodiment may be a memory chip or a logic chip. In some embodiments, the first to fourth semiconductor chips  400 A,  400 B,  400 C, and  400 D may all be the same type of memory chip, and in other embodiments, the first to fourth semiconductor chips  400 A,  400 B,  400 C, and  400 D may be a memory chip, and some may be a logic chip. 
     For example, the memory chip may be a volatile memory chip such as a dynamic random access memory (DRAM) or a static random access memory (SRAM), or may be a non-volatile memory chip such as a phase-change random access memory (PRAM), a magnetoresistive random access memory (MRAM), a ferroelectric random access memory (FeRAM) or a resistive random access memory (RRAM). Also, the logic chip may be, for example, a microprocessor, an analog device, or a digital signal processor. In certain embodiments, the first to fourth semiconductor chips  400 A,  400 B,  400 C, and  400 D may be a DRAM, and the semiconductor package  200  may be a high bandwidth memory (HBM). 
       FIGS.  10 A and  10 B  are plan views illustrating a carrier structure according to various embodiments of the present disclosure. 
     Referring to  FIG.  10 A , it can be understood that a carrier structure  120 F according to the present embodiment is similar to that illustrated in  FIG.  8   , except that a light blocking film  125  has first and second inner patterns  125   b   1  and  125   b   2  extending and intersecting in different directions (e.g., in a vertical direction) in an inner region, other than an edge pattern  125   a . Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120 E illustrated in  FIG.  8   , unless otherwise specifically stated. 
     The light blocking film  125  employed in the present embodiment may include an edge pattern  125   a  formed along an edge region of an upper surface  121 T, a first inner pattern  125   b   1  extending in a first direction, and a second inner pattern  125   b   2  extending in a second direction perpendicular to the first direction. Each of the first and second inner patterns  125   b   1  and  125   b   2  may have a width Wb that is narrower than a width Wa of the edge pattern  125   a . Each of the first and second inner patterns  125   b   1  and  125   b   2  may have a width Wb that is equal to or narrower than a width of a margin region  200 M. Also, the first and second inner patterns  125   b   1  and  125   b   2  may be arranged to overlap the margin region  200 M, respectively. 
     Referring to  FIG.  10 B , it can be understood that a carrier structure  120 G according to the present embodiment is similar to that illustrated in  FIG.  8   , except that a light blocking film  125 ′ has a discontinuous pattern. Descriptions of components of the present embodiment may refer to the description of the same or similar components of the carrier structure  120 E illustrated in  FIG.  8   , unless otherwise specifically stated. 
     Unlike the embodiment of  FIG.  8   , the light blocking film  125 ′ employed in the present embodiment may include a plurality of edge patterns discontinuously formed along an edge region. Such a discontinuous pattern may be similarly applied to the inner patterns  125   b   1  and  125   b   2  employed in the previous embodiments. 
     According to an embodiment of the present disclosure, damage to a product substrate may be minimized and the product substrate may be easily detached from a photosensitive adhesive layer, by partially curing the photosensitive adhesive layer bonded to the product substrate using a light blocking film, in a process of manufacturing a semiconductor device. 
     Various advantages and effects of the present disclosure are not limited to the above, and will be more easily understood in the process of describing specific embodiments of the present disclosure. 
     While example embodiments have been illustrated and described above, it will be apparent to those skilled in the art that modifications and variations could be made without departing from the scope of the present disclosure as defined by the appended claims.