SEMICONDUCTOR PACKAGING APPARATUS AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE USING THE SAME
20210366743 ยท 2021-11-25
Inventors
- JUNGHYUN CHO (Hwaseong-si, KR)
- SANG-GEUN PARK (Hwaseong-si, KR)
- DONGSEOK BAEK (Hwaseong-si, KR)
- Jaehyuk CHOI (Hwaseong-si, KR)
Cpc classification
H01L21/67288
ELECTRICITY
H01L2221/6834
ELECTRICITY
H01L2224/0557
ELECTRICITY
H01L2924/00014
ELECTRICITY
H01L23/481
ELECTRICITY
H01L2224/13025
ELECTRICITY
H01L2224/13023
ELECTRICITY
H01L2924/00014
ELECTRICITY
H01L2224/16148
ELECTRICITY
H01L2224/94
ELECTRICITY
H01L2224/16146
ELECTRICITY
H01L2224/03002
ELECTRICITY
H01L21/67259
ELECTRICITY
H01L24/94
ELECTRICITY
H01L2224/94
ELECTRICITY
H01L2224/16227
ELECTRICITY
H01L22/12
ELECTRICITY
H01L21/67132
ELECTRICITY
International classification
H01L21/67
ELECTRICITY
Abstract
A semiconductor packaging apparatus and methods of manufacturing semiconductor devices using the same. The semiconductor packaging apparatus includes a process unit, and a controller associated with the process unit. The process unit includes a bonding part that bonds a semiconductor substrate and a carrier substrate to each other to form a bonded substrate, a cooling part that cools the bonded substrate, and a detection part in the cooling part and configured to detect a defect of the bonded substrate. The controller is configured to control the process unit using data obtained from the detection part.
Claims
1-10. (canceled)
11. A method of manufacturing a semiconductor device, the method comprising: forming a bonded substrate by bonding a carrier substrate to a semiconductor substrate in a bonding part of a semiconductor packaging apparatus; performing a cooling process that cools the bonded substrate; and detecting, by a detection part of the semiconductor packaging apparatus, a defect of the bonded substrate during the cooling process.
12. The method of claim 11, wherein detecting the defect of the bonded substrate comprises detecting, by the detection part of the semiconductor packaging apparatus, misalignment between the semiconductor substrate and the carrier substrate.
13. The method of claim 12, wherein detecting the misalignment comprises obtaining edge images of an upper surface of the bonded substrate, wherein the edge images comprise corresponding edge points of the upper surface of the bonded substrate.
14. The method of claim 13, wherein, when viewed in plan, the corresponding edge points correspond to vertices of an imaginary regular triangle provided on the upper surface of the bonded substrate in which three of the corresponding edge points are measured to obtain respective edge offset values.
15. The method of claim 13, wherein detecting the misalignment by the detection part of the semiconductor packaging apparatus comprises obtaining a degree of the misalignment between the semiconductor substrate and the carrier substrate using the edge images.
16. The method of claim 15, wherein obtaining the degree of the misalignment comprises: yielding edge offset values from the edge images; and obtaining a central offset value using the edge offset values, wherein each of the edge offset values corresponds to a respective degree that an edge of the carrier substrate is offset from an edge of the semiconductor substrate, and wherein the central offset value corresponds to a degree of misalignment that a center of the carrier substrate is offset from a center of the semiconductor substrate, the central offset value being determined as the degree of the misalignment.
17. The method of claim 12, further comprising activating an alarm when a degree of the misalignment between the semiconductor substrate and the carrier substrate is outside of an allowable range.
18. The method of claim 11, before forming the bonded substrate, further comprising forming an adhesive layer on the semiconductor substrate, wherein the semiconductor substrate comprises through vias penetrating an inside of the semiconductor substrate, and wherein the bonded substrate is formed by bonding the carrier substrate to the semiconductor substrate through the adhesive layer.
19. The method of claim 18, wherein prior to performing the cooling process, further comprising heating the bonded substrate.
20. The method of claim 18, wherein prior to forming the bonded substrate, further comprising forming a release layer on the semiconductor substrate, wherein the release layer is formed to interpose between the semiconductor substrate and the adhesive layer, and wherein the bonded substrate is formed when the carrier substrate is bonded through the release layer and the adhesive layer to the semiconductor substrate.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF EMBODIMENTS
[0021] Some embodiments of the inventive concept will be hereinafter described below in detail with reference to the accompanying drawings to aid in clearly explaining the inventive concept.
[0022]
[0023] Referring now to
[0024] The process unit 500 may further include a detection part 30 provided in the cooling part 550. The detection part 30 may be provided above the stage 10 of the cooling part 550, and is configured to detect a defect in the bonded substrate loaded on the stage 10 of the cooling part 550. For example, the bonded substrate may be checked to be within certain tolerances, as the placement of the semiconductor substrate and the carrier substrate relative to each other to form of the bonded substrate may be identified as a defect when, for example, based on image measurements of the bonded substrate.
[0025] Referring to
[0026] With reference to
[0027] Although
[0028] Referring back to
[0029] A method of manufacturing a semiconductor device using the semiconductor packaging apparatus 1000 according to an embodiment of the inventive concept will now be disclosed.
[0030]
[0031] Referring to
[0032] The semiconductor substrate 100 may be provided in the process unit 500 of the semiconductor packaging apparatus 1000 of
[0033] Referring to
[0034] Referring to
[0035] The bonding part 530 may be provided therein with the semiconductor substrate 100 on which the release layer 140 and the adhesive layer 150 have been formed. The semiconductor substrate 100 may be provided in such a way that the first surface 100a faces the carrier substrate 200. The carrier substrate 200 may be bonded through the release layer 140 and the adhesive layer 150 to the first surface 100a of the semiconductor substrate 100. As a result, a bonded substrate 300 may be formed to include the semiconductor substrate 100 and the carrier substrate 200 that are bonded to each other.
[0036] The bonded substrate 300 may be loaded on the stage 10 of the heating part 540 of
[0037] Referring to
[0038] For example, at operation (S410) and referring to
[0039] Referring to
[0040] When a defect occurs in the bonded substrate 300, at least one of the edge images 22 may include an image of the defect that occurred in the bonded substrate 300. For example, when misalignment occurs between the semiconductor substrate 100 and the carrier substrate 200, at least two of the edge images 22 may include a misalignment image between the semiconductor substrate 100 and the carrier substrate 200. For example, when misalignment occurs between the semiconductor substrate 100 and the carrier substrate 200, each of the first edge image 22a and the second edge image 22b may include the misalignment image between the semiconductor substrate 100 and the carrier substrate 200. In this case, the first edge image 22a may include not only the first edge point a.sub.0 but also a first offset edge point a.sub.1 that is offset from the first edge point a.sub.0. The first offset edge point a.sub.1 may be identified as a defect when an amount of the offset is greater than a threshold. In an embodiment of the inventive concept, such a threshold may be a degree of misalignment. In addition, the second edge image 22b may include not only the second edge point b.sub.0 but also a second offset edge point b.sub.1 that is offset from the second edge point b.sub.0. The first edge point a.sub.0 and the second edge point b.sub.0 may be placed on an edge of the semiconductor substrate 100, and the first offset edge point a.sub.1 and the second offset edge point b.sub.1 may be placed on an edge of the carrier substrate 200.
[0041] The following describes the obtaining a degree of the misalignment between the semiconductor substrate 100 and the carrier substrate 200 according to an embodiment of the inventive concept.
[0042] With regard to operation (S430), a plurality of edge offset values may be correspondingly obtained from the edge images 22. The controller 560 of
[0043] For example, each of the edge points n.sub.0, a.sub.0, and b.sub.0 may have an (x, y) coordinate value on a Cartesian coordinate system whose origin is at a center C.sub.0 of the upper surface 300U of the bonded substrate 300. The controller 560 may be provided in advance with the coordinate value of each of the edge points n.sub.0, a.sub.0, and b.sub.0. When each of the first edge image 22a and the second edge image 22b includes the misalignment image, the first offset edge point a.sub.1 may be determined on a straight line passing through the first edge point a.sub.0 and the center C.sub.0 of the upper surface 300U of the bonded substrate 300, and the second offset edge point b.sub.1 may be determined on a straight line passing through the second edge point b.sub.0 and the center C.sub.0 of the upper surface 300U of the bonded substrate 300.
[0044] According to an embodiment of the inventive concept, a first edge offset value and a second edge offset value may be correspondingly obtained from the first edge image 22a and the second edge image 22b. The first edge offset value may relate to a relative position of the first offset edge point a.sub.1 with respect to the first edge point a.sub.0, and may be obtained as an (x, y) coordinate value on a Cartesian coordinate system whose origin is at the first edge point a.sub.0. Likewise, the second edge offset value may relate to a relative position of the second offset edge point b.sub.1 with respect to the second edge point b.sub.0, and may be obtained as an (x, y) coordinate value on a Cartesian coordinate system whose origin is at the second edge point b.sub.0. The first edge offset value may indicate the degree of misalignment between the semiconductor substrate 100 and the carrier substrate 200 on a first region of the bonded substrate 300, which is corresponds to the first edge image 22a. In other words, the first edge offset value may correspond to an amount (e.g., a degree) that the edge of the carrier substrate 200 offsets from the edge of the semiconductor substrate 100, on the first region of the bonded substrate 300. The second edge offset value may indicate the degree of misalignment between the semiconductor substrate 100 and the carrier substrate 200 on a second region of the bonded substrate 300, which is corresponds to the second edge image 22b. In other words, the second edge offset value may correspond to the amount (e.g., a degree) that the edge of the carrier substrate 200 offsets from the edge of the semiconductor substrate 100 on the second region of the bonded substrate 300.
[0045] Referring to
[0046] For example, when each of the first edge offset value and the second edge offset value is obtained, there may be produced a first imaginary circle V1 whose center is at the first offset edge point a.sub.1, and a second imaginary circle V2 whose center is at the second offset edge point b.sub.1. Each of the first imaginary circle V1 and the second imaginary circle V2 may have the same size (e.g., diameter) as that of the semiconductor substrate 100. The first imaginary circle V1 and the second imaginary circle V2 may intersect each other, and as a result, an intersection point C.sub.1 of the first and second imaginary circles V1 and V2 may be generated on the upper surface 300U of the bonded substrate 300. The central offset value may relate to a relative position of the intersection point C.sub.1 with respect to the center C.sub.0 of the upper surface 300U of the bonded substrate 300, and may be obtained as an (x, y) coordinate value on a Cartesian coordinate system whose origin is at the center C.sub.0 of the upper surface 300U of the bonded substrate 300. When viewed in a plan view, the central offset value may correspond to an amount that a center of the carrier substrate 200 offsets from a center (e.g., C.sub.0) of the semiconductor substrate 100. The central offset value may be determined as the degree of misalignment between the semiconductor substrate 100 and the carrier substrate 200.
[0047] Referring back to
[0048] At operation (S500), when the degree of defect does not fall within the allowable range, operation (S600) is executed in which the controller 560 may trigger/indicate an alarm informing that the degree of defect is out of the allowable range.
[0049] In addition, at operation (S500), when the degree of defect falls within the allowable range, at operation (S700) a subsequent process may be performed on the bonded substrate 300. When the cooling process C is terminated, the bonded substrate 300 may be unloaded from the stage 10 of the cooling part 550 of
[0050] Referring to
[0051] Referring to
[0052] Referring to
[0053] Referring now to
[0054] According to embodiments of the inventive concept, the semiconductor packaging apparatus 1000 may include the detection part 30 provided in the cooling part 550 of the process unit 500 and also include the controller 560 being connected to the detection part 30. The detection part 30 and the controller 560 may be configured to detect a defect of the bonded substrate 300 (e.g., misalignment between the semiconductor substrate 100 and the carrier substrate 200) during the cooling of the bonded substrate 300. All of bonded substrates 300 formed in the process unit 500 may experience the cooling process executed in the cooling part 550. The defect detection for the bonded substrate 300 may be performed simultaneously with the cooling process such that it may be easy to real-time detect the defect of each of the bonded substrates 300.
[0055] In addition, the controller 560 may be configured to control the process unit 500, based on the detected data (e.g., data about misalignment between the semiconductor substrate 100 and the carrier substrate 200). In other words based on the misalignment data, the controller 560 may control the process unit so that, for example, the placement of the carrier substrate on the adhesive of the semiconductor substrate may be compensated for based on the misalignment data. Thus, the controller can provide a type of feedback that controls the process unit 500 and indicate to an external control to adjust the bonding operation based on the misalignment data. Therefore, the defect may minimally or rarely occur in a subsequent bonded substrate 300.
[0056] Accordingly, embodiments of the inventive concept may provide a semiconductor packaging apparatus having a function to real-time detect defects of bonded substrates, and to provide a semiconductor device manufacturing method capable of minimizing or reducing the occurrence of defects in the bonded substrates.
[0057] The aforementioned description provides embodiments of the inventive concept provided for illustrative purposes. Therefore, the embodiments of the inventive concept are not limited to the descriptions herein above, and it will be understood by a person of ordinary skill in the art that variations in form and detail may be made therein without departing from the spirit and scope of the aforementioned description.