WO2012056817A1 - マイクロレンズアレイを使用したスキャン露光装置 - Google Patents
マイクロレンズアレイを使用したスキャン露光装置 Download PDFInfo
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- WO2012056817A1 WO2012056817A1 PCT/JP2011/070737 JP2011070737W WO2012056817A1 WO 2012056817 A1 WO2012056817 A1 WO 2012056817A1 JP 2011070737 W JP2011070737 W JP 2011070737W WO 2012056817 A1 WO2012056817 A1 WO 2012056817A1
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- microlens
- microlens array
- exposure
- substrate
- pattern
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70216—Mask projection systems
- G03F7/70258—Projection system adjustments, e.g. adjustments during exposure or alignment during assembly of projection system
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70216—Mask projection systems
- G03F7/70275—Multiple projection paths, e.g. array of projection systems, microlens projection systems or tandem projection systems
Definitions
- the thin film transistor liquid crystal substrate, the color filter substrate, and the like form a predetermined pattern by overlaying and exposing a resist film formed on a glass substrate several times. These exposed substrates may expand and contract during the film formation process, and the lower layer pattern for overlay exposure may differ from the designed pitch depending on manufacturing conditions (exposure apparatus characteristics and temperature conditions). is there.
- overlay exposure if a change in the pitch of the exposure position occurs, the change in the pitch has to be absorbed by correcting the magnification on the exposure apparatus side. That is, when the dimensional variation of the substrate to be exposed occurs, it is necessary to arrange the image at the center of a predetermined position on the substrate of the pitch after the variation by adjusting the magnification of the image for the deviation of the pitch. .
- the present invention has been made in view of such problems, and provides an exposure apparatus using a microlens array, and a scan exposure apparatus using a microlens array that can adjust the exposure position of the microlens array. For the purpose. In addition, even if a deviation of the exposure pattern from the reference pattern occurs, the present invention can detect the deviation during the exposure and prevent the exposure pattern from being misaligned.
- An object of the present invention is to provide a scanning exposure apparatus using a microlens array that can be improved.
- the microlens array is composed of four unit microlens arrays, a first layer and a second unit microlens array, a third layer, The optical axis of the microlens between the four-layer unit microlens array is deviated.
- the microlens array is composed of a plurality of unit microlens arrays, and is configured such that the optical axes of the microlenses are deviated at specific inversion imaging positions between the stacked unit microlens arrays. ing.
- the exposure apparatus further includes: An image detection unit for detecting an image of the substrate, an image processing unit for obtaining a reference pattern formed on the substrate by performing image processing based on a detection signal of the image, and the mask to be exposed to the reference pattern Control for adjusting the position of the optical axis of the microlens of each microlens array via the moving member so as to eliminate the deviation between the reference pattern and the exposure pattern by calculating the deviation between the exposure pattern and the reference pattern And adjusting the exposure position on the substrate by the plurality of microlens arrays so that the exposure pattern matches the reference pattern.
- the exposure position can be adjusted, and the same effect as that obtained by artificially adjusting the magnification can be obtained.
- the positional deviation between the reference pattern and the exposure pattern is detected during the exposure by detecting the image of the substrate and detecting the reference pattern during the exposure.
- this positional deviation can be eliminated.
- the exposure positional deviation is detected and eliminated in real time, the dimensional accuracy of the exposure position in the overlay exposure can be improved efficiently.
- FIG. 10 is a perspective view showing another exposure apparatus in which a plurality of microlens arrays are arranged. It is a schematic diagram which shows the projection state of the exposure light by a several micro lens array.
- FIG. 1 is a schematic diagram showing an exposure apparatus according to an embodiment of the present invention
- FIG. 2 is a longitudinal sectional view showing a part of the same microlens array
- FIG. 3 is a plurality of microlens arrays arranged.
- FIG. 4 is a diagram showing the optical mechanism of the microlens
- FIGS. 5A and 5B are diagrams showing the diaphragm
- FIG. 6 is a plane showing the arrangement of the hexagonal field diaphragm of the microlens.
- 7 and 7 are perspective views showing another exposure apparatus in which a plurality of microlens arrays are arranged.
- the exposure light emitted from the exposure light source 4 is guided to the mask 3 through an optical system 21 including a plane mirror, and the exposure light transmitted through the mask 3 is applied to the microlens array 2. Then, the pattern formed on the mask 3 is imaged on the substrate 1 by the microlens array 2.
- a dichroic mirror 22 is disposed on the optical path of the optical system 21, and observation light from the camera 23 is reflected by the dichroic mirror 22 and travels coaxially with the exposure light from the exposure light source 4 toward the mask 3.
- the observation light converges on the substrate 1 by the microlens array 2 and reflects the reference pattern already formed on the substrate 1, and the reflected light of the reference pattern is reflected by the microlens array 2, the mask 3 and the dichroic.
- the light enters the camera 23 via the mirror 22.
- the camera 23 detects the reflected light of the reference pattern and outputs this detection signal to the image processing unit 24.
- the image processing unit 24 performs image processing on the reference pattern detection signal to obtain a reference pattern detection image.
- the image signal of the reference pattern obtained by the image processing unit 24 is input to the control unit 25, and the control unit 25 detects the current position of the mask 3 (that is, the position of the exposure pattern to be exposed on the mask 3).
- a deviation from the position of the reference pattern is calculated, and an exposure correction amount of the microlens array 2 for eliminating the deviation amount is calculated.
- the control unit 25 outputs a signal corresponding to the exposure correction amount of the microlens array 2 to the actuator 20 as a moving member that moves the unit microlens array of the microlens array 2, and the actuator 20 outputs this signal.
- the optical axis of the micro lens 2a of the micro lens array 2 is driven to shift.
- the substrate 1 and the mask 3 can move together in a certain direction, and the microlens array 2, the exposure light source 4, and the optical system 21 are fixedly arranged. Then, when the substrate 1 and the mask 3 are moved in one direction, the exposure light is scanned on the substrate, and in the case of a so-called single-chip substrate in which one substrate is manufactured from a glass substrate, The entire surface of the substrate is exposed.
- the microlens array 2 and the exposure light source 4 are fixed, and the substrate 1 and the mask 3 are moved in the direction of the arrow 5 in synchronization, whereby exposure from the exposure light source 4 is performed.
- Light passes through the mask 3 and is scanned on the substrate 1 in the direction of arrow 5.
- the movement of the substrate 1 and the mask 3 is driven by a driving source of an appropriate moving device.
- the microlens array 2 and the exposure light source 4 may be moved while the substrate 1 and the mask 3 are fixed.
- microlens arrays 2 are arranged in two rows on the support substrate 6 in a direction perpendicular to the scanning direction 5, and four microlens arrays 2 are arranged in the scanning direction 5.
- three of the four microlens arrays 2 in the rear stage are respectively arranged between the four microlens arrays 2 in the front stage, and the two rows of microlens arrays 2 are arranged in a staggered manner. ing. Thereby, the entire region of the exposure region in the direction perpendicular to the scanning direction 5 on the substrate 1 is exposed by the two rows of microlens arrays 2.
- Each microlens array 2 is a laminate of four unit microlens arrays.
- four unit microlens arrays 2-1, 2-2, 2-3, 2- 4 has a laminated structure.
- each microlens 2a of each microlens array 2 has a four-lens eight-lens configuration
- each unit microlens array 2-1 has two convex lenses.
- the exposure light once converges between the unit microlens array 2-2 and the unit microlens array 2-3, and further forms an image on the substrate below the unit microlens array 2-4.
- FIG. 6 is a diagram showing the arrangement of the microlenses 2a as the position of the hexagonal field stop 12 of the microlenses 2a in order to show the arrangement of the microlenses 2a in each microlens array 2.
- FIG. 6 shows a state in which the optical axis of the micro lens 2a described later is not shifted (shifted).
- the microlenses 2 a are sequentially shifted slightly in the lateral direction in the scanning direction 5.
- the hexagonal field stop 12 is divided into a central rectangular portion 12 a and triangular portions 12 b and 12 c on both sides when viewed in the scanning direction 5.
- a broken line is a line segment that connects each corner of the hexagon of the hexagonal field stop 12 in the scanning direction 5.
- the fourth row of microlenses 2 a are arranged at the same position as the first row of microlenses 2 a in the direction perpendicular to the scan direction 5.
- the three rows of hexagonal field stops 12 when the area of the triangular portion 12 b and the area of the triangular portion 12 c of the two adjacent rows of hexagonal field stops 12 are added, two triangles overlapping in the scanning direction 5 are obtained.
- the linear density of the total area of the portions 12b and 12c is the same as the linear density of the area of the central rectangular portion 12a.
- the linear density is the opening area of the hexagonal field stop 12 per unit length in the direction perpendicular to the scanning direction 5.
- the total area of the triangular portions 12b and 12c is the area of a rectangular portion whose length is the base of the triangular portions 12b and 12c and whose width is the height of the triangular portions 12b and 12c. Since the rectangular portion has the same length as the rectangular portion 12a, the linear density of the triangular portions 12b and 12c is compared with the opening area (linear density) per unit length in the direction perpendicular to the scanning direction 5. The linear density of the rectangular portion 12a is the same. For this reason, when the substrate 1 is scanned by the three rows of microlenses 2a, it is exposed to a uniform amount of light in the entire area in the direction perpendicular to the scanning direction 5.
- the microlens arrays 2 are arranged in a staggered manner in the direction orthogonal to the scanning direction 5, but the microlens arrays 2 are close to each other as shown in FIG. In this case, the microlens array 2 can be arranged in a straight line in the scanning direction 50.
- the optical axes of the microlenses 2a of the unit microlens array 2-1 in the first layer and the unit microlens array 2-2 in the second layer are
- the optical axes of the microlenses 2a of the third-layer unit microlens array 2-3 and the fourth-layer unit microlens array 2-4 can be shifted (shifted) by the size of d. It has become.
- This deviation d is, for example, 0.3 ⁇ m.
- the exposure light is transmitted from the unit microlens array 2-2 and the unit microlens array 2 as shown in FIG.
- the exposure position is 0.6 ⁇ m in one microlens array 2 as described above. Can be shifted. Therefore, as shown in FIG. 13, for example, when the exposure position by the 41 microlens array 2 is shifted by 0.6 ⁇ m with respect to one microlens array 2, the projection position is shifted by 24.4 ⁇ m as a whole. be able to. That is, when the exposure position of the microlens array 2 at the right end in FIG. 13 is the same as that in FIG. 8, the exposure position of the microlens array 2 at the left end in FIG.
- FIG. 14 is a diagram showing the arrangement of the microlenses 2 a of the microlens array 2 and the detection area 17 of the line CCD camera 23.
- the hexagonal field stop 12 of the microlens 2a is adjacent to the nearest neighbor in the scanning direction 5 and is not parallel to the scanning direction 5, but is inclined.
- the linear detection region 17 is a straight line connecting the hexagonal field region 12 of the microlens 2a nearest to the scanning direction 5 from the hexagonal field region 12 of the corner microlens 2a.
- the detection area 17 is inclined with respect to the scanning direction 5 so as to coincide with each other.
- the detection region 17 of the line CCD camera 23 is, for example, from the microlens 2 a at the corner of the microlens array 2 to the other end in the width direction of the microlens array 2. That is, with respect to the direction perpendicular to the scanning direction 5, the hexagonal field region of the microlens 2 a located on the inclined line for the entire region in the width direction of the microlens array 2 from the corner portion of one end portion to the other end portion. Twelve images are detected.
- the scanning performance of the line CCD camera is 10 msec
- the moving speed of the substrate and the mask is, for example, 100 mm / sec.
- the mask moves 1 mm. Therefore, after detecting the image of the microlens 2 a at the corner of the microlens array 2 at one end of the line CCD camera 23, the width direction of the microlens array 2 at the other end of the line CCD camera 23.
- the image of the microlens 2a at the other end is an image 1 mm behind the position of the image of the microlens 2a at the corner. .
- the size in the width direction of the substrate and the mask is, for example, 1 m
- a displacement of 1 mm occurs per 1 m of the substrate. Therefore, between the adjacent microlenses 2a, the detected image is shifted in the scanning direction 5 by the amount obtained by dividing 1 mm by the number of microlenses 2a.
- this lens pitch ⁇ d is 150 ⁇ m
- the substrate moving speed is 100 mm / sec as described above
- this image is displayed as the micro lens 2a at the corner portion. It is an image at a position advanced by ⁇ d in the scan direction 5 of the substrate from the image at the position adjacent to the scan direction 5 of the image of FIG.
- an image at a position adjacent to the direction perpendicular to the scanning direction 5 of the image of the microlens 2a at the corner is obtained at that point in time from the next microlens 2a of the microlens 2a at the corner. This is an image detected by the second microlens 2a after 1.5 msec from the time.
- the image processing unit 24 obtains an image at a specific point in time while the substrate is moving when performing the above-described correction processing related to the time delay and the position adjustment from the acquisition signal of the line CCD camera 23. be able to.
- the first layer exposure pattern L1 reference pattern
- the stopped substrate 1 is scanned, an image on the substrate 1 is detected by the line CCD camera 23, and the detection signal of the reference pattern L1 is image-processed by the image processing unit 24, the reference pattern L1 shown in FIG. The detected image is obtained.
- control unit 25 outputs a signal corresponding to the exposure correction amount of the microlens array 2 to the actuator 20 as a moving member that moves the unit microlens array 2-1 and the like of the microlens array 2, and the actuator 20 (moving member) adjusts (shift drive) the optical axis of the microlens of the microlens array 2 based on this signal, adjusts the exposure position on the substrate by the microlens array, and adjusts the exposure light on the substrate. Adjust the pseudo magnification.
- the substrate 1 is carried into a predetermined exposure position of the exposure apparatus.
- the substrate 1 is exposed with a pattern L1 as shown in FIG. 15A as a reference pattern.
- the reference pattern L1 is a first layer pattern, and the second layer pattern to the fourth layer pattern are exposed in the exposure apparatus on the basis of the first layer pattern, for example, a five layer pattern is overlaid and exposed.
- the exposure pattern in the overexposure shifts from the lower layer pattern. Therefore, the substrate 1 that has been loaded is scanned with the mask 3 together with the microlens array 2, and an image on the substrate 1 is detected by the line CCD camera 23.
- the line CCD camera 23 is a one-dimensional sensor, and is installed so as to detect a region inclined with respect to the substrate scanning direction 5 as shown in FIG. As described above, the detection region 17 of the line CCD camera 23 is not set in a direction perpendicular to the substrate scanning direction 5 but is inclined in this direction.
- the detection region 17 is arranged to be inclined so as to pass through the hexagonal field stop 12 of the microlens array 2 that is closest to the scanning direction 5 in the vicinity.
- the correction based on the delay time due to the inclination of the detection region 17 and the correction based on the time delay of one scan time of the CCD sensor are performed by image processing.
- the image on the substrate 1 can be detected using the detected image of the microlens 2a at the corner as a reference. That is, the image processing unit 24 obtains the first layer pattern L1 on the substrate 1 shown in FIG. 15A based on the detection signal of the camera 23.
- the control unit 25 exposes the second layer pattern L2 on the substrate. That is, the substrate 1 and the mask 3 are moved together with respect to the microlens array 2 and the light source, and the exposure pattern L2 formed on the mask 3 is superimposed and exposed on the first layer pattern L1.
- the second layer pattern L2 can be formed at a position separated from the corner portion serving as the reference of the first layer pattern L1 by the design values ⁇ x and ⁇ y.
- the actuator 20 moves the unit microlens arrays 2-3 and 2-4 relative to the unit microlens arrays 2-1 and 2-2 so that the reference position of the exposure pattern L2 of the mask 3 is the first.
- the exposure light irradiation position on the substrate 1 is adjusted so as to coincide with the reference position of the layer pattern L1. For example, as shown in FIG.
- the exposure position can be aligned with the exposure pattern in the lower layer. That is, in the present embodiment, in the exposure apparatus, the positional deviation between the lower layer pattern and the exposure pattern during the exposure is corrected by adjusting the position of the optical axis of the microlens by moving the unit microlens array in the microlens array. It is possible to correct misalignment in real time and perform highly accurate overlay exposure.
- the exposure position on the substrate is adjusted by shifting the optical axis of the micro lens 2a, and hence the magnification of the exposure pattern is adjusted.
- the lens array There is no variation for the lens array. That is, the surface to be exposed on the substrate can be positioned within the range of the focal depth of all the microlenses. Usually, the focal depth of the microlens array is 50 ⁇ m, but the exposure surface on the substrate can be positioned within this focal depth.
- the present invention is not limited to the above embodiment.
- the line sensor of the line CCD camera 23 is arranged so that the detection region 17 thereof is inclined with respect to the scan direction 5, thereby performing image processing, thereby An image in the hexagonal field stop 12 that is continuous without interruption is detected in the whole area in the direction perpendicular to 5, but the line sensors are arranged in a direction perpendicular to the scanning direction 5, and three lines of the line sensors are provided.
- the present invention can adjust the exposure position by the microlens array in the exposure apparatus using the microlens array.
- the present invention can detect the deviation during the exposure and prevent the exposure pattern from being misaligned. Can be improved.
- the magnification of the projected image on the substrate can be adjusted using a microlens array that projects an erecting equal-magnification image of the exposure pattern of the mask onto the substrate. Therefore, the present invention is useful for enlarging the application object of the scanning exposure apparatus using the microlens array.
- Substrate 2 Micro lens array 2a: Micro lens 2-1 to 2-4: Unit micro lens array 3: Mask 3a: Transparent substrate 3b: Cr film 4: Exposure light source 5: Scanning direction 6: Support substrate 11: Opening Aperture 12: hexagonal field stop 12a: rectangular portion 12b, 12c: triangular portion 17: detection area 20: actuator 21: optical system 22: dichroic mirror 23: line CCD camera 24: image processing unit 25: control unit
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- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
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Abstract
Description
前記露光装置は、更に、
前記基板の画像を検出する画像検出部と、この画像の検出信号を基に画像処理して基板上に形成されている基準パターンを得る画像処理部と、この基準パターンと露光しようとする前記マスクの露光パターンとの間のずれを演算して前記基準パターンと前記露光パターンとのずれを解消するように前記移動部材を介して各前記マイクロレンズアレイのマイクロレンズの光軸の位置を調整する制御部と、を有し、前記複数個のマイクロレンズアレイによる基板上の露光位置を調整して、露光パターンを前記基準パターンに一致させるように構成することもできる。
2:マイクロレンズアレイ
2a:マイクロレンズ
2-1~2-4:単位マイクロレンズアレイ
3:マスク
3a:透明基板
3b:Cr膜
4:露光光源
5:スキャン方向
6:支持基板
11:開口絞り
12:6角視野絞り
12a:矩形部分
12b、12c:三角形部分
17:検出領域
20:アクチュエータ
21:光学系
22:ダイクロイックミラー
23:ラインCCDカメラ
24:画像処理部
25:制御部
Claims (4)
- 露光すべき基板の上方に配置され、夫々複数個のマイクロレンズが2次元的に配置されて構成された複数枚の単位マイクロレンズアレイが相互に積層配置されたマイクロレンズアレイと、このマイクロレンズアレイの上方に配置され所定の露光パターンが形成されたマスクと、このマスクに対して露光光を照射する露光光源と、前記単位マイクロレンズアレイの少なくとも一部を他の単位マイクロレンズアレイに対してその構成マイクロレンズの光軸が偏倚するように移動させる移動部材と、を有し、前記単位マイクロレンズアレイ間の光軸を偏倚させることにより、マイクロレンズアレイによる基板上の露光位置を調整することを特徴とするマイクロレンズアレイを使用したスキャン露光装置。
- 前記マイクロレンズアレイは、4枚の単位マイクロレンズアレイから構成され、第1層及び第2層の単位マイクロレンズアレイと、第3層及び第4層の単位マイクロレンズアレイとの間のマイクロレンズの光軸が偏倚するように構成されていることを特徴とする請求項1に記載のマイクロレンズアレイを使用したスキャン露光装置。
- 前記マイクロレンズアレイは、複数枚の単位マイクロレンズアレイから構成され、積層された単位マイクロレンズアレイ間の特定の反転結像位置にて、マイクロレンズの光軸が夫々偏倚するように構成されていることを特徴とする請求項1に記載のマイクロレンズアレイを使用したスキャン露光装置。
- 前記マイクロレンズアレイは、前記基板の表面に沿って複数個配置されており、
前記露光装置は、更に、
前記基板の画像を検出する画像検出部と、この画像の検出信号を基に画像処理して基板上に形成されている基準パターンを得る画像処理部と、この基準パターンと露光しようとする前記マスクの露光パターンとの間のずれを演算して前記基準パターンと前記露光パターンとのずれを解消するように前記移動部材を介して各前記マイクロレンズアレイのマイクロレンズの光軸の位置を調整する制御部と、を有し、前記複数個のマイクロレンズアレイによる基板上の露光位置を調整して、露光パターンを前記基準パターンに一致させることを特徴とする請求項1乃至3のいずれか1項に記載のマイクロレンズアレイを使用したスキャン露光装置。
Priority Applications (3)
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US13/880,352 US9152057B2 (en) | 2010-10-29 | 2011-09-12 | Scanning exposure apparatus using microlens array |
KR1020137013697A KR101777442B1 (ko) | 2010-10-29 | 2011-09-12 | 마이크로 렌즈 어레이를 사용한 스캔 노광 장치 |
CN201180052569.7A CN103189798B (zh) | 2010-10-29 | 2011-09-12 | 使用微透镜阵列的扫描曝光装置 |
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JP2010244697A JP5515120B2 (ja) | 2010-10-29 | 2010-10-29 | マイクロレンズアレイを使用したスキャン露光装置 |
JP2010-244697 | 2010-10-29 |
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JP (1) | JP5515120B2 (ja) |
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US10429646B2 (en) | 2015-10-28 | 2019-10-01 | Google Llc | Free space optical combiner with prescription integration |
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JP5294488B2 (ja) | 2009-12-03 | 2013-09-18 | 株式会社ブイ・テクノロジー | 露光装置 |
JP5354803B2 (ja) | 2010-06-28 | 2013-11-27 | 株式会社ブイ・テクノロジー | 露光装置 |
CN104865801B (zh) * | 2015-06-01 | 2017-03-01 | 京东方科技集团股份有限公司 | 曝光装置 |
KR101593963B1 (ko) * | 2015-07-30 | 2016-02-15 | 조남직 | 노광용 광원모듈 유닛 및 그 광원모듈 유닛이 구비된 노광장치 |
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- 2011-09-12 KR KR1020137013697A patent/KR101777442B1/ko active IP Right Grant
- 2011-09-12 US US13/880,352 patent/US9152057B2/en not_active Expired - Fee Related
- 2011-09-12 CN CN201180052569.7A patent/CN103189798B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN103189798A (zh) | 2013-07-03 |
KR101777442B1 (ko) | 2017-09-11 |
TWI546631B (zh) | 2016-08-21 |
KR20140061286A (ko) | 2014-05-21 |
JP5515120B2 (ja) | 2014-06-11 |
US20130208255A1 (en) | 2013-08-15 |
CN103189798B (zh) | 2015-07-01 |
JP2012098420A (ja) | 2012-05-24 |
US9152057B2 (en) | 2015-10-06 |
TW201222169A (en) | 2012-06-01 |
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