TWI688123B - Strip structure - Google Patents

Abstract

A strip structure includes a substrate and a plastic material layer disposed on the substrate. The plastic material layer includes a main body and a peripheral portion surrounding and connected with the main body. The main body has a plurality of reflector cups. The peripheral portion has a plurality of aligning marks, each having a centerline that is aligned with a boundary line between two neighboring reflector cups.

Description

Strip structure

This disclosure relates to a tape structure.

Existing tape structures are usually provided with alignment marks on the substrate, so as to assist in aligning the boundary of adjacent concave cups on the plastic layer when cutting the tape structure. However, the alignment mark on the substrate and the plastic layer are formed in two different processes, so the accuracy of the alignment mark on the substrate is limited.

In view of this, one objective of the present disclosure is to propose a tape structure with more accurate alignment marks.

To achieve the above objective, according to some embodiments of the present disclosure, a tape structure includes a substrate and a plastic layer. The plastic layer is disposed on the substrate and includes a body and an outer ring. The body has a plurality of concave cup structures. The outer ring portion surrounds the connecting body and has a plurality of alignment marks. The center line of any alignment mark is aligned with the boundary line between two adjacent concave cup structures.

According to some embodiments of the present disclosure, a tape structure includes a substrate and a plastic layer. The plastic layer is disposed on the substrate and includes a solid crystal area and an outer ring portion. The solid crystal area has a plurality of solid crystal segments. The outer ring surrounds the solid crystal area and has There are multiple alignment marks. The center line of any alignment mark is aligned with the boundary line between two adjacent die bonding segments.

In one or more embodiments of the present disclosure, the alignment marks are provided along the outer edge line of the outer ring portion.

In one or more embodiments of the present disclosure, the alignment mark is a protrusion structure, which protrudes from the outer ring portion by the outer edge line.

In one or more embodiments of the present disclosure, the alignment mark is two adjacent protrusion structures, and there is a gap between the two protrusion structures, and the center line of the alignment mark passes through the gap.

In one or more embodiments of the present disclosure, the alignment mark is a concave structure, which shrinks from the outer edge line to the outer ring portion.

In one or more embodiments of the present disclosure, two of the alignment marks overlap on the same boundary line, and the two alignment marks are located on opposite sides of the body.

In one or more embodiments of the present disclosure, the height of the alignment mark relative to the substrate is smaller than the height of the body relative to the substrate.

In one or more embodiments of the present disclosure, the outermost concave cup structure has at least a boundary line, which is aligned with the reserve mark.

In one or more embodiments of the present disclosure, the structure of the spare mark is the same as the structure of the counter mark.

In summary, the strip structure of the present disclosure directly forms alignment marks on the plastic layer, which effectively improves the accuracy of alignment of alignment marks between adjacent concave cups/solid crystal segments.

100, 300, 400, 500 ‧‧‧ strip structure

110‧‧‧ substrate

120, 320, 420, 520 ‧‧‧ plastic layer

130‧‧‧Body

131‧‧‧Concave cup structure

132, 133‧‧‧ boundary line

134, 135‧‧‧ boundary

140, 340, 440‧‧‧ Outer Ring Department

141, 341, 441‧‧‧ alignment mark

142‧‧‧Outer line

143‧‧‧ reserve mark

341a, 341b ‧‧‧ protruding structure

341c‧‧‧Gap

530‧‧‧Solid crystal area

531‧‧‧Solid crystal section

CL‧‧‧Centerline

H1, H2‧‧‧ Height

X1‧‧‧First direction

X2‧‧‧Second direction

In order to make the above and other objects, features, advantages and embodiments of the present disclosure more obvious and understandable, the drawings are described as follows: FIG. 1 is a top view illustrating a tape structure according to an embodiment of the present disclosure.

FIG. 2 is a partially enlarged cross-sectional view illustrating the tape structure shown in FIG. 1 along line N-N'.

FIG. 3 is a partially enlarged plan view showing a tape structure according to another embodiment of the present disclosure.

FIG. 4 is a partially enlarged plan view showing a tape structure according to another embodiment of the present disclosure.

FIG. 5 is a top view showing a tape structure according to another embodiment of the present disclosure.

Fig. 6 is a partially enlarged cross-sectional view illustrating the tape structure shown in Fig. 5 along line M-M'.

For a more detailed and complete description of the present disclosure, reference may be made to the accompanying drawings and various embodiments described below. The elements in the drawings are not drawn to scale and are provided only to illustrate the present disclosure. Many practical details are described below to provide a comprehensive understanding of this disclosure. However, those of ordinary skill in the relevant arts should understand that this disclosure can be implemented without one or more practical details. Therefore, these details are not Apply to limit this disclosure.

Please refer to FIG. 1, which is a top view illustrating a tape structure 100 according to an embodiment of the present disclosure. In this embodiment, the strip structure 100 is a light-emitting diode strip structure, which is used to carry a light-emitting diode wafer (not shown). The tape structure 100 includes a substrate 110 and a plastic layer 120 disposed on the substrate 110. In some embodiments, the substrate 110 is a metal substrate or a ceramic substrate, and the plastic layer 120 is formed on the substrate 110 by molding.

As shown in FIG. 1, the plastic layer 120 includes a body 130 and an outer ring portion 140 surrounding the connecting body 130. The body 130 has a plurality of concave cup structures 131 penetrating up and down (see also FIG. 2 ), which is configured for the light emitting diode chip to be disposed. In this embodiment, the concave cup structures 131 are arranged in a matrix, and each concave cup structure 131 substantially occupies a rectangular area. Specifically, the concave cup structures 131 are arranged in a plurality of straight rows along the first direction X1, and are arranged in a plurality of horizontal rows along a second direction X2 perpendicular to the first direction X1. Two adjacent rows of concave cup structures 131 have a boundary line 132 extending along the first direction X1, and two adjacent rows of concave cup structures 131 have a boundary line 133 extending along the second direction X2. The boundary lines 132 and 133 are predetermined cutting lines, which are indicated by broken lines in the figure. In addition, the left/right sides of the concave cup structures 131 located in the leftmost/right side have a boundary line 134 extending in the first direction X1, while the upper/lower sides of the concave cup structures 131 located in the uppermost/lower side have The boundary line 135 extending in the two directions X2. The disclosure is not limited to the arrangement of the concave cup structure 131 described above.

As shown in FIG. 1, the outer ring portion 140 has a plurality of alignment marks 141 which are provided along the outer edge line 142 of the outer ring portion 140. The center line CL of the alignment mark 141 is aligned with the boundary lines 132 and 133, and the two alignment marks 141 located on opposite sides of the body 130 (ie, upper and lower sides or left and right sides) overlap on the same boundary line 132, 133. Specifically, in the present embodiment, the alignment mark 141 has a symmetrical protrusion structure, which protrudes from the outer edge line 142 by the outer ring portion 140. The alignment marks 141 provided on the upper and lower sides of the body 130 extend parallel to the boundary line 132 (in other words, extend perpendicular to the boundary line 133), and the center line CL is aligned with the boundary line 132. The alignment marks 141 provided on the left and right sides of the body 130 extend parallel to the boundary line 133 (in other words, extend perpendicular to the boundary line 132), and the center line CL is aligned with the boundary line 133. When the tape structure 100 is cut, the alignment mark 141 can help to align the boundary lines 132 and 133 between the adjacent concave cup structures 131 to cut the adjacent concave cup structures 131 on average.

The recent reduction in the size of the light emitting diode package has caused the side walls of the concave cup structure 131 to gradually become thinner, and a slight deviation in cutting may damage the concave cup structure 131. The present disclosure improves the practice of setting the alignment mark on the substrate by the existing tape structure, and the alignment mark 141 and the concave cup structure 131 are simultaneously formed in the process of forming the plastic layer 120, so the concave cup structure 131 can be more accurately aligned The boundary between 132 and 132.

It should be noted that although each boundary line 132, 133 in FIG. 1 has a corresponding alignment mark 141, this disclosure is not limited thereto. In other embodiments, only some of the boundary lines 132 and 133 have corresponding alignment marks 141, and the cutting machine is configured to align the specific alignment marks 141 and perform cutting, and then translate by a fixed distance for the next cutting.

As shown in FIG. 1, in some embodiments, the outer ring portion 140 further has a plurality of spare marks 143 aligned with the boundary lines 134 and 135 of the outermost concave cup structure 131. The reserve mark 143 is a symmetrical protruding structure, which protrudes from the outer ring portion 140 by the outer edge line 142 and extends parallel to the boundary line 134 or the boundary line 135. The center line CL of the reserve mark 143 is aligned with the boundary lines 134 and 135 to assist in cutting the outer ring portion 140 accurately. In this embodiment, the structure of the spare mark 143 and the alignment mark 141 are the same, but the disclosure is not limited thereto.

Please refer to FIG. 2, which is a partially enlarged cross-sectional view illustrating the tape structure 100 shown in FIG. 1 along the line segment N-N'. In some embodiments, the height H1 of the alignment mark 141 relative to the substrate 110 is smaller than the height H2 of the body 130 relative to the substrate 110 in a direction perpendicular to the substrate 110. Since the alignment mark 141 is located at the outermost part of the plastic layer 120, the lower height of the alignment mark 141 is designed so that the mold for forming the plastic layer 120 has a lower height at the peripheral part, so it is easier to inject plastic into the mold The mold is filled so that an accurate and clear alignment mark 141 can be formed. In some embodiments, not only the height of the alignment mark 141, but also the overall height of the outer ring portion 140 is a height H1 that is less than the height H2 of the body, but the disclosure is not limited thereto.

Please refer to FIG. 3, which is a partially enlarged plan view illustrating a tape structure 300 according to another embodiment of the present disclosure. The tape structure 300 includes a substrate 110 and a plastic layer 320 disposed on the substrate 110. The plastic layer 320 includes a body 130 and an outer ring portion 340 surrounding the connecting body 130. The structure of the substrate 110 and the body 130 is shown in FIG. The implementation manners are the same, so reference may be made to the related description above, which will not be repeated here. The difference between this embodiment and the embodiment shown in FIG. 1 is that the outer ring portion 340 of the tape structure 300 has an alignment mark 341 having a structure different from that of the alignment mark 141. Specifically, the alignment mark 341 includes two adjacent but separated protrusion structures 341a and 341b. The protrusion structures 341a, 341b protrude from the outer ring portion 340 by the outer edge line 142, and there is a gap 341c between them, and the center line CL of the alignment mark 341 passes through the gap 341c and is symmetrical Divide the gap 341c. When the tape structure 300 is cut, the gap 341c between the protruding structures 341a and 341b can assist in cutting the aligned boundary line 132 to separate the concave cup structures 131 on both sides of the boundary line 132. In some embodiments, the spare mark (not shown in FIG. 3) is also composed of two adjacent but separated protrusion structures.

Please refer to FIG. 4, which is a partially enlarged plan view illustrating a tape structure 400 according to another embodiment of the present disclosure. The tape structure 400 includes a substrate 110 and a plastic layer 420 disposed on the substrate 110. The plastic layer 420 includes a body 130 and an outer ring portion 440 surrounding the connecting body 130. The structure of the substrate 110 and the body 130 is shown in FIG. The implementation manners are the same, so reference may be made to the related description above, which will not be repeated here. The difference between this embodiment and the embodiment shown in FIG. 1 is that the outer ring portion 440 of the tape structure 400 has an alignment mark 441 having a structure different from that of the alignment mark 141. Specifically, the alignment mark 441 is a symmetrical concave structure, which is retracted from the outer edge line 142 to the outer ring portion 440. The alignment mark 441 extends parallel to the boundary line 132, and its center line CL is aligned with the boundary line 132. In some embodiments, the spare mark (not shown in FIG. 4) is also a concave structure.

It should be noted that the appearance of the alignment mark is not limited to the embodiments shown in FIGS. 1 to 4, as long as the alignment mark is provided on the plastic layer, it can be formed in the same process as the concave cup structure. The indicia can have any suitable appearance.

Please refer to Figure 5 and Figure 6. FIG. 5 is a top view showing a tape structure 500 according to another embodiment of the present disclosure, and FIG. 6 is a partially enlarged cross-sectional view showing the tape structure 500 shown in FIG. 5 along line M-M'. As 5th As shown in the figure, the tape structure 500 includes a substrate 110 and a plastic layer 520 disposed on the substrate 110. The plastic layer 520 has a solid crystal area 530 and an outer ring portion 140. The outer ring portion 140 surrounds the die bonding region 530 and rises relative to the die bonding region 530 (as shown in FIG. 6).

As shown in FIG. 5, the solid crystal area 530 has a plurality of solid crystal segments 531 arranged in a matrix. The solid crystal segments 531 are configured for the light emitting diode wafer (not shown) to be disposed. There is a boundary line 132 extending along the first direction X1 or a boundary line 133 extending along the second direction X2 between adjacent solid crystal segments 531. The outer ring portion 140 has a plurality of alignment marks 141. The alignment mark 141 protrudes from the outer edge line 142 by the outer ring portion 140, and its center line CL is aligned with the boundary lines 132 and 133. In some embodiments, the outer ring portion 140 further has a plurality of spare mark 143, and the center line CL of the spare mark 143 is aligned with the boundary lines 134 and 135 of the outermost solid crystal segment 531.

It should be noted that the outer ring portion 140 of the plastic layer 520 of this embodiment is substantially the same as the embodiment shown in FIG. 1, so the previous paragraph only describes its main features. For other details, please refer to the relevant description in the foregoing. In addition, it is also possible to replace the alignment mark 141 of the tape structure 500 with the alignment mark 341 or the alignment mark 441 or other appropriate appearance alignment marks.

In summary, the strip structure of the present disclosure directly forms alignment marks on the plastic layer, which effectively improves the accuracy of alignment of alignment marks between adjacent concave cups/solid crystal segments.

Although this disclosure has been disclosed as above by way of implementation, it is not intended to limit this disclosure. Anyone who is familiar with this skill can make various changes and modifications within the spirit and scope of this disclosure, so the protection of this disclosure is protected The scope shall be as defined in the appended patent application scope.

100‧‧‧material structure

110‧‧‧ substrate

120‧‧‧Plastic layer

130‧‧‧Body

131‧‧‧Concave cup structure

132, 133‧‧‧ boundary line

134, 135‧‧‧ boundary

140‧‧‧Outer Ring Department

141‧‧‧ alignment mark

142‧‧‧Outer line

143‧‧‧ reserve mark

CL‧‧‧Centerline

X1‧‧‧First direction

X2‧‧‧Second direction

Claims (10)

A tape structure includes: a substrate; and a plastic layer, which is disposed on the substrate, and includes: a body having a plurality of concave cup structures; and an outer ring portion surrounding the body and having a plurality of pairs Bit marks, a center line of any of the alignment marks is aligned with a boundary line between two adjacent ones of the concave cup structures, wherein the alignment marks are arranged along an outer edge line of the outer ring portion And any of the alignment marks is a protruding structure, and the protruding structure protrudes from the outer ring portion by the outer edge line. A tape structure includes: a substrate; and a plastic layer disposed on the substrate, and includes: a solid crystal area having a plurality of solid crystal segments; and an outer ring portion surrounding the solid crystal area and having A plurality of alignment marks, a center line of any of the alignment marks is aligned with a boundary line between two adjacent ones of the solid crystal segments, wherein the alignment marks are along an outer side of the outer ring portion The edge line is provided, and any of the alignment marks is a protruding structure, and the protruding structure protrudes from the outer ring portion by the outer edge line. A material belt structure, comprising: a substrate; and a plastic layer, arranged on the substrate, and comprising: A body having a plurality of concave cup structures; and an outer ring portion surrounding the body and having a plurality of alignment marks, a center line of any of the alignment marks is aligned with the two phases of the concave cup structures A boundary line between neighbors, wherein the alignment marks are arranged along an outer edge line of the outer ring portion, and any of the alignment marks is a concave structure, the concave structure is formed by the outer edge line It is retracted inside the outer ring. A tape structure includes: a substrate; and a plastic layer disposed on the substrate, and includes: a solid crystal area having a plurality of solid crystal segments; and an outer ring portion surrounding the solid crystal area and having A plurality of alignment marks, a center line of any of the alignment marks is aligned with a boundary line between two adjacent ones of the solid crystal segments, wherein the alignment marks are along an outer side of the outer ring portion The edge line is provided, and any of the alignment marks is a concave structure, and the concave structure is retracted from the outer edge line to the outer ring portion. A tape structure includes: a substrate; and a plastic layer, which is disposed on the substrate, and includes: a body having a plurality of concave cup structures; and an outer ring portion surrounding the body and having a plurality of pairs Bit mark, a center line of any of the alignment marks is aligned with a boundary line between two neighbors in the concave cup structures, any of the pairs The bit mark is two adjacent protruding structures, and there is a gap between the protruding structures, and the corresponding center line passes through the gap. A tape structure includes: a substrate; and a plastic layer disposed on the substrate, and includes: a solid crystal area having a plurality of solid crystal segments; and an outer ring portion surrounding the solid crystal area and having A plurality of alignment marks, a center line of any of the alignment marks is aligned with a boundary line between two adjacent ones of the solid crystal segments, and any of the alignment marks are two adjacent protrusions In the structure, there is a gap between the protruding structures, and the corresponding center line passes through the gap. The tape structure according to any one of claims 1 to 6, wherein any two of the alignment marks overlap on an identical boundary line and are located on opposite sides of the plastic layer. The tape structure according to claim 1, 3, or 5, wherein a height of any of the alignment marks relative to the substrate is smaller than a height of the body relative to the substrate. The tape structure according to claim 1, 3 or 5, wherein the outermost concave cup structures have at least a boundary line and are aligned with a spare mark. The tape structure according to claim 9, wherein the structure of the spare mark is the same as the structure of any of the alignment marks.

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