TWI407269B - Optical system and method for lithography and exposure - Google Patents

Optical system and method for lithography and exposure Download PDF

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TWI407269B
TWI407269B TW99142074A TW99142074A TWI407269B TW I407269 B TWI407269 B TW I407269B TW 99142074 A TW99142074 A TW 99142074A TW 99142074 A TW99142074 A TW 99142074A TW I407269 B TWI407269 B TW I407269B
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drum
roller
optical
substrate
measuring
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TW99142074A
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Chinese (zh)
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TW201224667A (en
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Jia Yush Yen
Lien Sheng Chen
Yung Pin Chen
Tien Tung Chung
Ping Hung Chen
Yu Tin Chao
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Univ Nat Taiwan
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Abstract

Disclosed is an optical system and method for lithography and exposure applicable for exposing patterns on a substrate by light beam, comprising a cylinder having a rotating axle on the center thereof, a substrate disposed winding around the cylinder, a cylinder control apparatus and a light path control apparatus. The cylinder control apparatus manipulates the cylinder by measuring the cylinder to compensate alterations of rotational positions and/or postures. The light path control apparatus includes an optical component set for determining the light beam for the use of exposure and measurement and a moving platform for carrying the optical component set, wherein the moving platform is parallel to the rotating axle of the cylinder to move linearly for enabling the exposure light beam to move relatively with the cylinder to expose patterns onto the substrate, and further to compensate alternations of rotational positions and/or postures of the cylinder according to measured results by the cylinder controlling apparatus, thereby providing greater precision in exposing patterns on the substrate.

Description

光學微影曝光系統及其曝光方法Optical lithography exposure system and exposure method thereof

本發明係有關一種光學微影曝光結構及其曝光方法,詳而言之,係涉及一種利用移動平台操控光學元件以利用光束將連續圖案曝光至基材上之光學微影曝光結構及其曝光方法。The present invention relates to an optical lithography exposure structure and an exposure method thereof, and more particularly to an optical lithography exposure structure for controlling an optical element by using a moving platform to expose a continuous pattern onto a substrate by using a light beam, and an exposure method thereof .

隨著顯示器面板、軟性電子(flexible electronics)以及太陽能等產業在尺寸需求潛力漸增的情況下,應用於太陽能電池、顯示器、微光學元件(DOE)、抗反射結構(AR)、有機發光體(OLED)、無線射頻辨識系統(RFID)等之大面積週期性結構的產品的需求勢必大幅提升。As display panels, flexible electronics, and solar industries are increasingly potential for size, they are used in solar cells, displays, micro-optical components (DOE), anti-reflective structures (AR), and organic light emitters ( The demand for large-area periodic structures such as OLEDs and radio frequency identification systems (RFID) is bound to increase dramatically.

一般而言,較常使用捲軸式(Roll-to-Roll)製程技術產生微影圖案,但目前利用捲軸式製程所製作的產品其微結構的線寬只能達到微米等級,即僅從5μm到500μm不等,所使用的滾筒直徑約為65mm~800mm,難以製作出次微米結構。In general, the lithographic pattern is often produced using a Roll-to-Roll process technology, but the current line width of the product made by the roll-to-roll process can only reach the micron level, that is, only from 5 μm. The diameter of the drum is about 500 mm to 800 mm, and it is difficult to produce a submicron structure.

另外,就製作大面積微影技術而言,習知係先架設一組固定的光路,並將環繞有基材之滾筒放置在滾筒載台上,由滾筒載台產生出曝寫整個基材所需的相對運動。以前述捲軸式技術為例,滾筒在三維的空間中除了沿中心軸的方向移動及對軸的旋轉外,另還有四個自由度需要被量測及控制,例如中心軸的徑向(radial)、軸向(axial)和偏擺(tilt)等自由度,以讓滾筒姿態在曝光過程中能維持穩定,並使所曝光的條紋接合的扭曲程度降到最低。然而,由於載台需要負載的元件除了滾筒和滾筒夾持機構,更包含檢測滾筒位移的感測器,機構與滾筒等物件的整體重量降低了載台的反應速度、定位精準度及抗擾動的能力。In addition, in terms of making large-area lithography technology, it is customary to first set up a fixed set of optical paths, and place the roller surrounding the substrate on the roller stage, and the roller stage generates the entire substrate. The relative movement required. Taking the above-described scroll-type technology as an example, in addition to the movement of the drum in the three-dimensional space along the central axis and the rotation of the shaft, there are four degrees of freedom to be measured and controlled, such as the radial of the central axis (radial Degrees of freedom, such as axial and tilt, to maintain the stability of the drum attitude during exposure and to minimize distortion of the exposed stripe joints. However, since the load-receiving components of the stage include a roller and a drum clamping mechanism, and further include a sensor for detecting the displacement of the roller, the overall weight of the mechanism and the roller reduces the reaction speed, positioning accuracy, and anti-disturbance of the stage. ability.

故,為達成於基材上進行干涉條紋之接合度的提升,必須使滾筒與光束間產生非常精密的相對運動,因此,如何提供一種用於光學微影曝光技術,得以進行滾筒的量測及操控,進而提昇量測精準度並作為操控的依據,實為業界亟待解決的重要課題。Therefore, in order to achieve the improvement of the degree of bonding of the interference fringes on the substrate, it is necessary to produce a very precise relative motion between the roller and the beam. Therefore, how to provide an optical lithography exposure technique for measuring the roller and Control, and thus improve measurement accuracy and as a basis for control, is an important issue to be solved in the industry.

為解決前述習知技術的種種問題,本發明提出一種光學微影曝光系統及其曝光方法,以使滾筒與光束間產生非常精密的相對運動。In order to solve the above problems of the prior art, the present invention proposes an optical lithography exposure system and an exposure method thereof to produce a very precise relative motion between the drum and the light beam.

本發明提供一種光學微影曝光系統,係包括:滾筒,具有一轉軸並以該轉軸為中心旋轉;基材,係繞設於該滾筒的外表面;滾筒操控設備,係用以對該滾筒進行量測並依據所量測的結果操控該滾筒,以補償該滾筒以其轉軸為中心旋轉所產生的位置及/或姿態的改變;以及光路操控設備,係包括光學元件組和移動平台,該光學元件組係用以將光束分為曝光用光束和量測用光束,而該移動平台係用以承載該光學元件組並平行該滾筒的轉軸軸心方向進行線性移動,以使該曝光用光束和該滾筒之間產生相對運動而將該圖案曝光至該基材上,其中,該移動平台復用以依據該滾筒操控設備對該滾筒的量測結果,補償該滾筒於旋轉過程中該滾筒的位置及/或姿態的改變。The invention provides an optical lithography exposure system, comprising: a drum having a rotating shaft and rotating around the rotating shaft; a substrate wound around an outer surface of the drum; and a drum operating device for performing the drum Measuring and controlling the drum according to the measured result to compensate for the change of position and/or posture generated by the drum rotating about its rotating shaft; and the optical path control device comprising an optical component group and a moving platform, the optical The component group is configured to divide the beam into an exposure beam and a measurement beam, and the moving platform is configured to carry the optical component group and linearly move in parallel with the axis direction of the rotation axis of the roller, so that the exposure beam and A relative motion is generated between the rollers to expose the pattern onto the substrate, wherein the moving platform is multiplexed to compensate the position of the roller during the rotation according to the measurement result of the roller by the roller handling device And / or change in posture.

所述之滾筒操控設備包括滾筒量測模組和滾筒致動裝置。滾筒量測模組,係具有振動分析儀和一對位移感測器,該振動分析儀係用以量測該滾筒沿著該轉軸軸心方向的位移,該對位移感測器係設置於該滾筒上方並間隔一預定距離,並用以量測該滾筒於旋轉過程中所產生的姿態傾斜;以及滾筒致動裝置,係用以依據該滾筒量測模組的量測結果致動該滾筒,以補償該滾筒在旋轉過程中所產生的姿態傾斜。The drum handling device includes a drum measuring module and a drum actuating device. The drum measuring module has a vibration analyzer and a pair of displacement sensors, wherein the vibration analyzer is configured to measure the displacement of the drum along the axis of the rotating shaft, and the pair of displacement sensors are disposed on the The drum is spaced above the predetermined distance and used to measure the tilt of the posture of the drum during the rotation; and the drum actuating device is configured to actuate the drum according to the measurement result of the drum measuring module, Compensating for the tilt of the attitude produced by the drum during the rotation.

所述之光路操控設備復包括光束量測模組及光束調整模組。該光束量測模組具有分光器、兩個凸透鏡和兩個光位移感測器,該分光器將該量測用光束分成兩道光束以分別透過該兩個凸透鏡聚焦,再投射至該兩個光位移感測器,藉由量測投射至該光位移感測器上的光點的位置,計算出該光束的位移和角度之改變。該光束調整模組依據該光束量測模組所量測的結果,藉由該些致動器控制該些光學元件來調整該光束,以補償該移動平台對該滾筒相對運動或該滾筒於旋轉時而對曝光至該基材的圖案所造成的影響。The optical path control device further includes a beam measuring module and a beam adjusting module. The beam measuring module has a beam splitter, two convex lenses and two light displacement sensors, and the beam splitter splits the measuring beam into two beams to be respectively focused by the two convex lenses and then projected to the two The light displacement sensor calculates the displacement and angle change of the light beam by measuring the position of the light spot projected onto the light displacement sensor. The beam adjustment module adjusts the light beams according to the results measured by the beam measurement module, and the optical components are adjusted by the actuators to compensate for the relative movement of the moving platform or the rotation of the roller. The effect of the exposure to the pattern of the substrate.

本發明提供一種光學微影曝光方法,係包括以下步驟:(1)令承載光學元件組之移動平台以平行外表面繞設有基材的滾筒的轉軸軸心方向進行線性移動,以使光束經該光學元件組而產生之曝光用光束和該滾筒之間產生相對運動而將圖案曝光至該基材上;以及(2)令滾筒操控設備對該滾筒進行量測,以令該移動平台依據該滾筒操控設備的量測結果,補償該滾筒於旋轉過程中的位置及/或姿態的改變。The invention provides an optical lithography exposure method, comprising the steps of: (1) linearly moving a moving platform carrying an optical component group with a parallel outer surface around a shaft axis direction of a drum provided with a substrate, so that the light beam passes through Activating a relative movement between the exposure beam generated by the optical component group and the roller to expose the pattern onto the substrate; and (2) causing the roller handling device to measure the roller to cause the mobile platform to The measurement results of the drum handling device compensate for changes in the position and/or attitude of the drum during rotation.

上述之步驟(2)復包括:(2-1)令該滾筒操控設備的一對位移感測器量測該滾筒於旋轉過程中所產生的姿態傾斜,於該滾筒於旋轉過程中所產生的姿態傾斜大於或等於第一預定值時進至步驟(2-2),於該滾筒於旋轉過程中所產生的姿態傾斜小於該第一預定值時進至步驟(2-3);(2-2)令該滾筒操控設備的滾筒致動裝置補償該滾筒在旋轉過程中所產生的姿態傾斜,並返回步驟(2-1);(2-3)令該滾筒操控設備的振動分析儀量測該滾筒沿著該轉軸軸心方向的位移,於該滾筒沿著該轉軸軸心方向的位移大於或等於第二預定值時進至步驟(2-4),於該滾筒沿著該轉軸軸心方向的位移小於該第二預定值時進至步驟(2-5);(2-4)令該移動平台補償該滾筒於旋轉過程中沿著該轉軸軸心方向的位移,並返回步驟(2-3)之量測程序;以及(2-5)令該曝光用光束將該圖案曝光至該基材上。The above step (2) includes: (2-1) causing a pair of displacement sensors of the drum operating device to measure the tilt of the posture generated by the drum during the rotation, which is generated during the rotation of the drum When the attitude tilt is greater than or equal to the first predetermined value, proceeding to step (2-2), and proceeding to step (2-3) when the posture tilt generated by the drum during the rotation is less than the first predetermined value; (2) 2) causing the drum actuating device of the drum operating device to compensate for the posture tilt generated by the drum during the rotation, and returning to step (2-1); (2-3) measuring the vibration analyzer of the drum operating device Displacement of the drum along the axial direction of the rotating shaft, and proceeding to step (2-4) when the displacement of the drum along the axial direction of the rotating shaft is greater than or equal to a second predetermined value, the drum is along the axis of the rotating shaft When the displacement of the direction is less than the second predetermined value, proceeding to step (2-5); (2-4) causing the moving platform to compensate the displacement of the drum along the axis of the rotating shaft during the rotation, and returning to the step (2) a measurement procedure of -3); and (2-5) exposing the pattern to the substrate by the exposure beam.

相較於習知技術,本發明之光學微影曝光系統及其曝光方法,係利用移動平台來移動光學元件組,使曝光用光束與滾筒間產生相對位移,俾使曝光至基材的圖案(如干涉條紋)可緊密接合,並透過滾筒和光束量測模組之量測來提高移動平台的反應速度、定位精準度及抗擾動的能力。Compared with the prior art, the optical lithography exposure system of the present invention and the exposure method thereof use a moving platform to move the optical component group to cause relative displacement between the exposure beam and the roller, so as to expose the pattern to the substrate ( For example, the interference fringes can be tightly coupled and measured by the roller and the beam measuring module to improve the reaction speed, positioning accuracy and anti-disturbance capability of the mobile platform.

以下藉由特定的具體實施形態說明本發明之實施方式,熟悉此技術之人士可由本說明書所揭示之內容輕易地了解本發明之其他優點與功效,亦可藉由其他不同的具體實施形態加以施行或應用。The embodiments of the present invention are described in the following specific embodiments, and those skilled in the art can easily understand other advantages and functions of the present invention by the disclosure of the present disclosure, and can also be implemented by other different embodiments. Or application.

請參閱第1圖,本發明之光學微影曝光系統係利用光束,例如氬離子雷射,將圖案曝光至基材上,主要包括滾筒1、滾筒操控設備2和光路操控設備3。Referring to FIG. 1, the optical lithography exposure system of the present invention exposes a pattern onto a substrate by using a light beam such as an argon ion laser, and mainly includes a drum 1, a drum operating device 2, and an optical path manipulation device 3.

滾筒1具有一轉軸10並以轉軸10為中心旋轉,滾筒1的外表面上環設有基材13,滾筒可為圓柱體,基材可為感光性材料。滾筒1的旋轉運動主要可藉由旋轉步進馬達(此圖未顯示)驅動以進行步進式或連續式旋轉,且其靠近該旋轉步進馬達的一端可架設於具V形或U形凹槽的承座11上,並利用一有彈性的簧片(此圖未顯示)從滾筒1的上方(相對於承座11)施壓,使滾筒1的轉軸10不致產生非旋轉的運動,藉此壓迫滾筒1垂直於轉軸10的方向運動,此外,滾筒1的另外一端則可藉由一組錐形軸與孔的配對來支撐。The drum 1 has a rotating shaft 10 and rotates around the rotating shaft 10. The outer surface of the drum 1 is provided with a base material 13 on the outer ring. The drum can be a cylindrical body, and the base material can be a photosensitive material. The rotary motion of the drum 1 can be mainly driven by a rotary stepping motor (not shown) for stepwise or continuous rotation, and one end of the rotary stepping motor can be erected in a V-shaped or U-shaped concave. On the socket 11 of the groove, a resilient reed (not shown) is pressed from above the drum 1 (relative to the socket 11) so that the shaft 10 of the drum 1 does not cause non-rotating motion. The pressing drum 1 is moved perpendicular to the direction of the rotating shaft 10. Further, the other end of the drum 1 can be supported by a pair of tapered shafts and holes.

滾筒操控設備2係用以量測滾筒1並依據所量測的結果操控滾筒1,以補償滾筒1以其轉軸10為中心旋轉所產生的位置及/或姿態的改變。詳言之,滾筒操控設備2包括滾筒量測模組21和滾筒致動裝置22。The drum handling device 2 is for measuring the drum 1 and manipulating the drum 1 in accordance with the measured results to compensate for the change in position and/or posture produced by the drum 1 rotating about its axis of rotation 10. In detail, the drum handling device 2 includes a drum measuring module 21 and a drum actuating device 22.

滾筒量測模組21包括振動分析儀211和一對位移感測器212a和212b。振動分析儀211係用以朝滾筒1的轉軸10發射雷射光源以量測滾筒1沿轉軸10方向的振動。而位移感測器212a和212b可例如雷射位移感測器,其所使用的雷射光源可被聚焦為20μm,位移感測器212a和212b係用以直接對滾筒1的曲面進行量測,其可被夾持於滾筒1的正上方與滾筒1表面約距離15mm,兩測量點的間距約為55mm,以量測滾筒1的姿態傾斜。The drum measuring module 21 includes a vibration analyzer 211 and a pair of displacement sensors 212a and 212b. The vibration analyzer 211 is for emitting a laser light source toward the rotating shaft 10 of the drum 1 to measure the vibration of the drum 1 in the direction of the rotating shaft 10. The displacement sensors 212a and 212b can be, for example, laser displacement sensors, the laser source used can be focused to 20 μm, and the displacement sensors 212a and 212b are used to directly measure the curved surface of the drum 1. It can be clamped directly above the drum 1 at a distance of about 15 mm from the surface of the drum 1, and the distance between the two measuring points is about 55 mm to measure the inclination of the drum 1.

滾筒致動裝置22係用以依據滾筒量測模組21的量測結果致動滾筒1,以補償滾筒1在旋轉過程中所產生之姿態傾斜。滾筒致動裝置22可為高精度壓電致動平台。The drum actuating device 22 is configured to actuate the drum 1 according to the measurement result of the drum measuring module 21 to compensate for the posture tilt generated by the drum 1 during the rotation. The drum actuating device 22 can be a high precision piezoelectric actuation platform.

再者,光路操控設備3主要包括光學元件組31和移動平台32。Furthermore, the optical path manipulation device 3 mainly includes an optical element group 31 and a moving platform 32.

光學元件組31包括分光器310、複數個光學元件組311、312、313和314及複數個致動器(此圖未顯示)。光學元件組311、312、313和314分別由該些致動器所控制,光束4進入光學元件組31後分為曝光用光束41和量測用光束42,於此圖中,曝光用光束41係用以將干涉條紋曝光至基材13上。The optical element group 31 includes a beam splitter 310, a plurality of optical element groups 311, 312, 313, and 314, and a plurality of actuators (not shown in this figure). The optical element groups 311, 312, 313, and 314 are respectively controlled by the actuators, and the light beam 4 enters the optical element group 31 and is divided into an exposure beam 41 and a measuring beam 42, and in this figure, the exposure beam 41 It is used to expose the interference fringes onto the substrate 13.

移動平台32係用以承載光學元件組31並平行滾筒1之轉軸10的方向進行線性移動,以使曝光用光束41和滾筒1之間產生相對運動,俾將干涉條紋曝光至基材13上。移動平台32可透過滑軌進行移動,用以依據振動分析儀211對滾筒1的量測結果而對滾筒1進行線性移動,以補償滾筒1於旋轉過程中在其轉軸10方向所產生的位移。另外,移動平台32復可相對於轉軸10方向進行傾斜運動,用以依據位移感測器212a和212b對滾筒1的量測結果而補償滾筒1在旋轉過程中所產生的姿態傾斜。The moving platform 32 is configured to carry the optical element group 31 and linearly move in the direction parallel to the rotating shaft 10 of the drum 1 to cause relative movement between the exposure beam 41 and the drum 1, and to expose the interference fringes to the substrate 13. The moving platform 32 is movable through the slide rail to linearly move the drum 1 according to the measurement result of the drum 1 by the vibration analyzer 211 to compensate for the displacement of the drum 1 in the direction of the rotating shaft 10 during the rotation. In addition, the moving platform 32 can perform a tilting movement with respect to the direction of the rotating shaft 10 for compensating for the posture tilt generated by the drum 1 during the rotation according to the measurement results of the drum 1 by the displacement sensors 212a and 212b.

具體言之,曝光至基材13上的圖案大多為條紋,為了能在基材13上進行干涉條紋的縱向接合,滾筒1必須能360度的完整旋轉。對於干涉條紋之接合有關鍵性影響者,係為滾筒1在旋轉過程中,沿轉軸10的方向位移和相對於轉軸10的傾斜誤差(roller tilting error)需盡量地小,設若預設要曝寫的干涉條紋週期為800nm,則沿轉軸10的方向(即垂直條紋方向)的圖形擺放(image placement)誤差,例如干涉條紋週期和位置的改變,以小於80nm以內較佳。Specifically, the pattern exposed to the substrate 13 is mostly streak, and in order to enable longitudinal bonding of the interference fringes on the substrate 13, the drum 1 must be able to rotate 360 degrees. For the key influence of the interference fringe, the drum 1 is displaced in the direction of the rotating shaft 10 and the tilting error with respect to the rotating shaft 10 is as small as possible, and the preset is to be exposed. The period of the interference fringe is 800 nm, and the image placement error in the direction of the rotating shaft 10 (i.e., the direction of the vertical stripe), for example, the period and position of the interference fringe, is preferably less than 80 nm.

另一方面,移動平台32可只包括部分所需的自由度及較低的動態性能,因而由移動平台32對滾筒1相對運動所產生的誤差,無論是靜態的定位誤差(positioning error)或動態的追跡誤差(tracking error),可由所述之光路操控設備3中所包括的光束量測模組33和光束調整模組34來進行補償。光束量測模組33係用以對量測用光束42進行量測,以供光束調整模組34依據其量測的結果調整光束4,俾補償移動平台32對滾筒1相對運動時,對曝光至基材13上的圖案所造成的影響,例如干涉條紋週期和位置的改變。On the other hand, the mobile platform 32 may only include some of the required degrees of freedom and lower dynamic performance, and thus the error caused by the relative movement of the drum 1 by the moving platform 32, whether it is a static positioning error or dynamic The tracking error can be compensated by the beam measuring module 33 and the beam adjusting module 34 included in the optical path manipulation device 3. The beam measuring module 33 is configured to measure the measuring beam 42 for the beam adjusting module 34 to adjust the beam 4 according to the result of the measurement, and to compensate for the relative movement of the moving platform 32 to the drum 1 Effects caused by patterns on the substrate 13, such as changes in interference fringe period and position.

光束量測模組33包括分光器330、兩個凸透鏡331a和331b及兩個光位移感測器332a和332b。若光束前進方向為Z軸,則必須量測的自由度為光束在X、Y方向的位移以及對X、Y軸分別的旋轉。為使四個自由度能被分別量測,量測用光束42可經由分光器330而分為兩道光束,分別透過凸透鏡331a和331b投射至光位移感測器332a和332b,光位移感測器332a和332b則用以量測投射至的光點位置,進而計算出光束4相對於滾筒1的位置和角度之改變。The beam measuring module 33 includes a beam splitter 330, two convex lenses 331a and 331b, and two light displacement sensors 332a and 332b. If the beam advance direction is the Z axis, the degree of freedom that must be measured is the displacement of the beam in the X and Y directions and the rotation of the X and Y axes, respectively. In order to enable the four degrees of freedom to be separately measured, the measuring beam 42 can be split into two beams via the beam splitter 330, and projected to the light displacement sensors 332a and 332b through the convex lenses 331a and 331b, respectively, and the light displacement sensing The 332a and 332b are used to measure the position of the spot to be projected, thereby calculating the change in the position and angle of the beam 4 with respect to the drum 1.

光束調整模組34包括複數個光學元件341和342及分別控制光學元件341和342之致動器343和344。藉由致動器343和344控制光學元件341和342來調整光束4,以補償移動平台32對滾筒1相對運動時對曝光至基材13上的圖案所造成的影響。另外,光束調整模組34亦可依據光束量測模組33的量測結果補償滾筒1於旋轉過程中的位置及/或姿態的改變。Beam adjustment module 34 includes a plurality of optical elements 341 and 342 and actuators 343 and 344 that control optical elements 341 and 342, respectively. The light beams 4 are adjusted by the actuators 343 and 344 controlling the optical elements 341 and 342 to compensate for the effect of the moving platform 32 on the pattern exposed to the substrate 13 when the drum 1 is relatively moved. In addition, the beam adjustment module 34 can compensate the change of the position and/or posture of the drum 1 during the rotation according to the measurement result of the beam measurement module 33.

詳言之,可依據需求設定光學元件341和342的夾角,光束4經兩次反射進入光學元件組31後產生曝光用光束41和量測用光束42,量測用光束42被導引至分光器330,經由設計分光器330到凸透鏡331a和331b及凸透鏡331a和331b至光位移感測器332a和332b的距離使得光束4的位置和角度分別由光位移感測器332a和332b所測得,光位移感測器332a和332b可依據所測得的光電位置送出相對應的電壓訊號,並透過AD轉換器以轉換成數位訊號供電腦處理。In detail, the angle between the optical elements 341 and 342 can be set according to requirements. After the light beam 4 is reflected into the optical element group 31 twice, the exposure beam 41 and the measuring beam 42 are generated, and the measuring beam 42 is guided to the beam splitting. The distance between the beam 33 and the convex lenses 331a and 331b and the light displacement sensors 332a and 332b via the design beam splitter 330 is such that the position and angle of the light beam 4 are measured by the light displacement sensors 332a and 332b, respectively. The optical displacement sensors 332a and 332b can send corresponding voltage signals according to the measured photoelectric positions, and convert them into digital signals for processing by the AD converter.

此外,為使每次對基材13曝光時,光束4的位置和角度皆可固定,可依據近軸幾何光學原理設定凸透鏡331a和331b與光位移感測器332a和332b的距離擺放,使得光束4在經光學元件組31和凸透鏡331a和331b後,打在光位移感測器332a和332b上的位置,能夠直接換算成光束4的角度。其次,透過移動平台32的線性移動,使得曝光用光束41能對基材13作完整的曝光,透過量測光束4的位置和角度,可知曝光用光束41是否於曝光時間中維持固定,當量測結果顯示位置和角度有誤差時,利用所述致動器343和344調整光學元件341和342即可消除誤差。In addition, in order to expose the position and angle of the light beam 4 each time the substrate 13 is exposed, the distance between the convex lenses 331a and 331b and the light displacement sensors 332a and 332b can be set according to the paraxial geometrical optical principle, so that the distance between the convex lenses 331a and 331b and the light displacement sensors 332a and 332b can be set. The position of the light beam 4 on the light displacement sensors 332a and 332b after passing through the optical element group 31 and the convex lenses 331a and 331b can be directly converted into the angle of the light beam 4. Secondly, through the linear movement of the moving platform 32, the exposure beam 41 can completely expose the substrate 13, and by measuring the position and angle of the beam 4, it can be known whether the exposure beam 41 is maintained at a fixed time during the exposure time. When the measurement results show an error in the position and angle, the optical elements 341 and 342 are adjusted by the actuators 343 and 344 to eliminate the error.

以下配合第1圖說明本發明之光學微影曝光系統之滾筒操控設備之訊號傳輸運作模式。The signal transmission operation mode of the drum operating device of the optical micro-film exposure system of the present invention will be described below with reference to FIG.

請參閱第2圖,旋轉馬達12驅動滾筒以其轉軸為中心旋轉,而旋轉馬達12在控制主機231的命令下,其解析度為0.001°,最高速度可達2.5°/sec。位移感測器212a和212b的解析度可高達10nm,內部取樣頻率則可達到50kHz,對於量測滾筒的傾斜其解析度可高達0.18μ rad,位移感測器212a和212b的量測訊號由感測器控制器232解讀,並可轉換成±10V內的類比電壓,再由控制主機231內建的類比-數位轉換器轉換成數據而傳送回主控電腦23。而振動分析儀211以聚焦的HeNe雷射進行沿該轉軸方向的位移量測,同時也可進行頻譜分析,其量測解析度可為0.3nm,內部取樣頻率可高達1MHz,振動分析儀211將所量測的訊號傳回主控電腦23。主控電腦23可依據所接收之振動分析儀211及位移感測器212a和212b的回傳訊號,分別發出命令至壓電平台控制器233和控制主機231,以控制壓電平台22、線性馬達320和旋轉馬達12。壓電平台控制器233可控制壓電平台22以致動滾筒的姿態傾斜,線性馬達320可控制移動平台進行平行滾筒的轉軸軸心方向之線性移動。Referring to Fig. 2, the rotary motor 12 drives the drum to rotate about its rotation axis, and the rotary motor 12 has a resolution of 0.001° and a maximum speed of 2.5°/sec under the command of the control unit 231. The displacement sensors 212a and 212b can have a resolution of up to 10 nm, the internal sampling frequency can reach 50 kHz, the resolution of the measuring roller can be as high as 0.18 μrad, and the displacement signals of the displacement sensors 212a and 212b are sensed. The controller 232 interprets and converts the analog voltage into ±10V, and then converts it into data by the analog-digital converter built in the control host 231 and transmits it back to the main control computer 23. The vibration analyzer 211 performs displacement measurement along the rotation axis direction with the focused HeNe laser, and can also perform spectrum analysis. The measurement resolution can be 0.3 nm, the internal sampling frequency can be up to 1 MHz, and the vibration analyzer 211 will The measured signal is transmitted back to the main control computer 23. The main control computer 23 can issue commands to the piezoelectric platform controller 233 and the control host 231 respectively according to the received back signals of the vibration analyzer 211 and the displacement sensors 212a and 212b to control the piezoelectric platform 22 and the linear motor. 320 and a rotary motor 12. The piezoelectric stage controller 233 can control the piezoelectric platform 22 to tilt the attitude of the actuating drum, and the linear motor 320 can control the linear movement of the moving platform to the axial direction of the rotating shaft of the parallel drum.

承前所述,若滾筒在旋轉過程中發生傾斜,會使得兩次鄰近曝光區域中的條紋錯位,此時可由壓電平台22致動滾筒來進行補償。由於滾筒在垂直於該轉軸軸心方向的自由度可藉由一組壓簧來迫緊,因此滾筒在旋轉過程中若有沿該轉軸方向的運動,通常不會以操縱整個滾筒的方式來補償,而是移動承載光學元件的移動平台,使光路和滾筒之間產生相對位移,俾使條紋緊密接合。換言之,即利用線性馬達320驅動移動平台使得干涉光路進行平行於滾筒軸向的運動。控制主機231內建有基本的可調式數位控制器而可對線性馬達320的性能最佳化,使得移動平台最大形成達到350nm,最小步進距離可達到10nm。As previously mentioned, if the drum is tilted during rotation, the streaks in the two adjacent exposure areas are misaligned, at which point the drum can be actuated by the piezoelectric platform 22. Since the degree of freedom of the drum in the direction perpendicular to the axis of the rotating shaft can be tightened by a set of compression springs, if the drum moves in the direction of the rotating shaft during the rotation, it is usually not compensated by means of manipulating the entire drum. Instead, the moving platform carrying the optical element is moved to cause a relative displacement between the optical path and the roller, so that the stripes are tightly joined. In other words, the linear motion motor 320 is used to drive the moving platform such that the interference optical path moves parallel to the axial direction of the drum. The control host 231 has a built-in adjustable digital controller to optimize the performance of the linear motor 320, so that the maximum displacement of the mobile platform reaches 350 nm and the minimum step distance can reach 10 nm.

關於滾筒姿態的控制成果,請參閱第3A和3B圖,係分別表示滾筒經壓電平台調整前和後的姿態變化情形。第3A圖是單純驅動滾筒旋轉,而由兩個位移感測器所量得的訊號相減得到的結果,由圖中可觀察到滾筒旋轉時的偏心程度和震盪等差動訊號等。第3B圖則表示了以壓電平台根據此差動訊號進行姿態調整後的結果,因此,可知滾筒姿態誤差已能被控制到非常小的範圍,對干涉條紋的接合達到最佳化。Regarding the control results of the drum attitude, please refer to Figs. 3A and 3B, which respectively show the posture changes of the drum before and after adjustment by the piezoelectric platform. Fig. 3A is a result obtained by simply subtracting the signals measured by the two displacement sensors by simply rotating the drum, and the eccentricity and the oscillating differential signals when the drum is rotated can be observed from the figure. Fig. 3B shows the result of the attitude adjustment by the piezoelectric platform based on the differential signal. Therefore, it can be seen that the drum attitude error can be controlled to a very small range, and the engagement of the interference fringes is optimized.

由第1及2圖所示之實施形態得以瞭解,若欲在環設有基材之直徑50mm的滾筒上接合出整個曲面的次微米週期性結構,需要光路操控設備(包括光學元件組、承載該光學元件組的移動平台、光束量測及調整模組)和滾筒操控設備(包括滾筒量測模組和滾筒致動裝置)的相互搭配,俾使得滾筒相對於曝光點作小角度旋轉和轉軸軸心方向的微步進,且主控電腦可命令滾筒和移動平台作相對應的運動,以補償滾筒於旋轉過程中之位置及/或姿態的改變。此外,光路操控設備亦得透過操控光路以補償滾筒旋轉或移動平台移動時對曝光至基材上的圖案所產生的影響。It is understood from the embodiments shown in Figures 1 and 2 that an optical path control device (including an optical component group, a load bearing device) is required to bond the sub-micron periodic structure of the entire curved surface on a roller having a diameter of 50 mm of the substrate. The moving platform of the optical component group, the beam measuring and adjusting module) and the roller handling device (including the roller measuring module and the roller actuating device) are matched with each other, so that the roller rotates and rotates at a small angle with respect to the exposure point. The micro-stepping of the axial direction, and the main control computer can command the drum and the moving platform to perform corresponding movements to compensate for the change of the position and/or posture of the drum during the rotation. In addition, the optical path control device also has to manipulate the optical path to compensate for the effect of the rotation of the drum or the movement of the platform on the pattern exposed to the substrate.

接者,請參閱第4A及4B圖,係表示本發明之光學微影曝光方法流程圖。首先,光束經光束調整模組導引至光學元件組,再於光學元件組中產生曝光用光束及量測用光束,接著曝光用光束及量測用光束藉由光學元件組分別投射至基材及進入光束量測模組。Referring to Figures 4A and 4B, there is shown a flow chart of the optical lithography exposure method of the present invention. First, the light beam is guided to the optical component group by the beam adjustment module, and then the exposure beam and the measurement beam are generated in the optical component group, and then the exposure beam and the measurement beam are respectively projected onto the substrate by the optical component group. And enter the beam measurement module.

其次,曝光用光束對基材的曝光方法請參閱第4A圖。Next, please refer to FIG. 4A for the exposure method of the exposure beam to the substrate.

於步驟S31中,令移動平台平行滾筒的轉軸軸心方向進行線性移動,以使曝光用光束和旋轉中的滾筒之間產生相對運動,而使該圖案曝光至繞設於滾筒外表面且隨滾筒旋轉的基材上。進至步驟S32。In step S31, the moving platform is linearly moved in the axial direction of the rotating shaft of the parallel roller to cause relative movement between the exposure light beam and the rotating roller, and the pattern is exposed to be wound around the outer surface of the roller and with the roller. On a rotating substrate. Proceed to step S32.

於步驟S32中,令滾筒操控設備對滾筒進行量測,以令承載光學元件組之移動平台依據滾筒操控設備的量測結果,補償滾筒於旋轉過程中的位置及/或姿態的改變。再者,步驟S32復包括S321至S326,如第4B圖所示。In step S32, the drum operating device is caused to measure the drum so that the moving platform carrying the optical component group compensates for the change in the position and/or posture of the drum during the rotation according to the measurement result of the drum operating device. Furthermore, step S32 includes S321 to S326 as shown in FIG. 4B.

於步驟S321中,令位移感測器量測滾筒於旋轉過程中所產生的姿態傾斜,以於步驟S322中,令主控電腦判斷滾筒所產生的姿態傾斜是否小於第一預定值,若是,則進至步驟S324;若否,則進至步驟S323。In step S321, the displacement sensor measures the inclination of the drum during the rotation process, so that in step S322, the main control computer determines whether the posture tilt generated by the drum is less than a first predetermined value, and if so, Proceed to step S324; if not, proceed to step S323.

於步驟S323中,令滾筒致動裝置補償滾筒在旋轉過程中所產生的姿態傾斜,並返回步驟S321。In step S323, the drum actuating device compensates for the posture tilt generated by the drum during the rotation, and returns to step S321.

於步驟S324中,令振動分析儀量測滾筒於旋轉過程中沿著轉軸軸心方向的位移,以於步驟S325中,令主控電腦判斷滾筒沿著轉軸軸心方向的位移是否小於第二預定值,若是,則進至步驟S327;若否,則進至步驟S326。In step S324, the vibration analyzer is configured to measure the displacement of the drum along the axial direction of the rotating shaft during the rotation, so that the main control computer determines whether the displacement of the drum along the axial direction of the rotating shaft is less than the second predetermined in step S325. The value, if yes, proceeds to step S327; if not, proceeds to step S326.

於步驟S326中,令移動平台補償滾筒於旋轉過程中滾筒沿著轉軸軸心方向的位移,並返回步驟S324。In step S326, the moving platform compensates the displacement of the drum in the axial direction of the rotating shaft during the rotation, and returns to step S324.

於步驟S327中,令曝光用光束將該圖案曝光至該基材上。In step S327, the exposure beam is caused to expose the pattern onto the substrate.

另外,於一實施形態中,第4A圖所示之步驟S32復包括令光路操控設備對量測用光束進行量測。詳言之,即令光路操控設備依據其量測結果調整光束,以補償移動平台對滾筒相對運動時對曝光至該基材上的圖案所造成的影響,或者令光路操控設備依據其量測結果調整光束,以補償滾筒於旋轉過程中對曝光至基材上的圖案所造成的影響。Further, in an embodiment, the step S32 shown in FIG. 4A includes the optical path manipulation device measuring the measuring beam. In detail, the optical path control device adjusts the light beam according to the measurement result to compensate for the influence of the moving platform on the pattern exposed to the substrate when the drum is relatively moved, or adjusts the optical path control device according to the measurement result thereof. The beam is used to compensate for the effect of the roller on the pattern exposed to the substrate during rotation.

因此,滾筒於旋轉過程中可能產生沿轉軸的方向發生位置改變或相對於其轉軸發生姿態傾斜,移動平台可平行於轉軸進行與滾筒的相對運動或可相對於轉軸產生傾斜,以補償滾筒的位置改變或姿態傾斜。此外,滾筒致動裝置亦可致動滾筒以補償滾筒於旋轉過程中的傾斜。另一方面,光束調整模組係負責維持投射至基材上的曝光圖案的姿態,避免受到移動平台移動或滾筒旋轉的擾動影響,故,光束調整模組依據光束量測模組的量測結果,補償由移動平台對滾筒相對運動或滾筒自身的旋轉而對曝光至基材上的圖案所造成的影響。Therefore, during the rotation of the drum, a position change may occur in the direction of the rotating shaft or an attitude tilt with respect to the rotating shaft thereof, and the moving platform may perform relative movement with the drum parallel to the rotating shaft or may be inclined with respect to the rotating shaft to compensate the position of the drum. Change or posture tilt. In addition, the drum actuating device can also actuate the drum to compensate for the tilt of the drum during rotation. On the other hand, the beam adjustment module is responsible for maintaining the attitude of the exposure pattern projected onto the substrate to avoid the influence of the movement of the moving platform or the rotation of the drum. Therefore, the beam adjustment module is based on the measurement result of the beam measuring module. Compensating for the effect of the relative movement of the drum by the moving platform or the rotation of the drum itself on the pattern exposed to the substrate.

綜上所述,本發明之光學微影曝光系統及其曝光方法,得以利用光學微影技術製作大面積次微米週期性結構於環設有基材的滾筒上,配合高解析光路操控設備及其移動平台和滾筒操控設備,在滾筒與光束間產生非常精密的相對運動,提高了移動平台的反應速度、定位精準度及抗擾動的能力,進而使得基材上的結構圖案可達到無接縫的表現,使所曝光的條紋接合的扭曲程度降到最低。In summary, the optical lithography exposure system of the present invention and the exposure method thereof can utilize the optical lithography technology to fabricate a large-area sub-micron periodic structure on a drum provided with a substrate on the ring, and cooperate with a high-resolution optical path control device and The mobile platform and the roller control device produce very precise relative motion between the roller and the beam, which improves the reaction speed, positioning accuracy and anti-disturbance capability of the mobile platform, so that the structural pattern on the substrate can be seamless. Performance, which minimizes the distortion of the exposed stripe joints.

上述實施形態僅例示性說明本發明之原理、特點及其功效,並非用以限制本發明之可實施範疇,任何熟習此項技藝之人士均可在不違背本發明之精神及範疇下,對上述實施形態進行修飾與改變。任何運用本發明所揭示內容而完成之等效改變及修飾,均仍應為下述之申請專利範圍所涵蓋。因此,本發明之權利保護範圍,應如後述之申請專利範圍所列。The above-described embodiments are merely illustrative of the principles, features, and effects of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art can recite the above without departing from the spirit and scope of the present invention. The embodiment is modified and changed. Any equivalent changes and modifications made by the disclosure of the present invention should still be covered by the following claims. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.

1...滾筒1. . . roller

10...轉軸10. . . Rotating shaft

11...承座11. . . Seat

12...旋轉馬達12. . . Rotary motor

13...基材13. . . Substrate

2...滾筒操控設備2. . . Roller control equipment

21...滾筒量測模組twenty one. . . Roller measurement module

211...振動分析儀211. . . Vibration analyzer

212a、212b...位移感測器212a, 212b. . . Displacement sensor

22...滾筒致動裝置twenty two. . . Roller actuating device

23...主控電腦twenty three. . . Master computer

231...控制主機231. . . Control host

232...感測器控制器232. . . Sensor controller

233...壓電平台控制器233. . . Piezo platform controller

3...光路操控設備3. . . Optical path control device

31...光學元件組31. . . Optical component group

310、330...分光器310, 330. . . Splitter

311、312、313、314、341、342...光學元件311, 312, 313, 314, 341, 342. . . Optical element

32...移動平台32. . . mobile platform

320...線性馬達320. . . Linear motor

33...光束量測模組33. . . Beam measurement module

331a、331b...凸透鏡331a, 331b. . . Convex lens

332a、332b...光位移感測器332a, 332b. . . Light displacement sensor

34...光束調整模組34. . . Beam adjustment module

343、344...致動器343, 344. . . Actuator

S31~S32...步驟S31~S32. . . step

S321~S327...步驟S321~S327. . . step

4...光束4. . . beam

41...曝光用光束41. . . Exposure beam

42...量測用光束42. . . Measuring beam

第1圖係本發明之光學微影曝光系統之應用架構圖;1 is an application architecture diagram of an optical lithography exposure system of the present invention;

第2圖係本發明之光學微影曝光系統之訊號傳輸方塊圖;2 is a block diagram of signal transmission of the optical lithography exposure system of the present invention;

第3A圖係本發明之光學微影曝光系統之位移感測器對滾筒的姿態的量測結果之示意圖;3A is a schematic view showing the measurement result of the attitude of the displacement sensor of the optical lithography exposure system of the present invention on the drum;

及3B圖係本發明之光學微影曝光系統之調整後的滾筒的姿態之示意圖;And 3B are schematic views of the posture of the adjusted drum of the optical lithography exposure system of the present invention;

第4A圖係本發明之光學微影曝光方法之流程圖;以及4A is a flow chart of the optical lithography exposure method of the present invention;

第4B圖係本發明之光學微影曝光方法之一實施形態的流程圖。Fig. 4B is a flow chart showing an embodiment of the optical lithography exposure method of the present invention.

1...滾筒1. . . roller

10...轉軸10. . . Rotating shaft

11...承座11. . . Seat

13...基材13. . . Substrate

2...滾筒操控設備2. . . Roller control equipment

21...滾筒量測模組twenty one. . . Roller measurement module

211...振動分析儀211. . . Vibration analyzer

212a、212b...位移感測器212a, 212b. . . Displacement sensor

22...滾筒致動裝置twenty two. . . Roller actuating device

3...光路操控設備3. . . Optical path control device

31...光學元件組31. . . Optical component group

310、330...分光器310, 330. . . Splitter

311、312、313、314、341、342...光學元件311, 312, 313, 314, 341, 342. . . Optical element

32...移動平台32. . . mobile platform

33...光束量測模組33. . . Beam measurement module

331a、331b...凸透鏡331a, 331b. . . Convex lens

332a、332b...光位移感測器332a, 332b. . . Light displacement sensor

34...光束調整模組34. . . Beam adjustment module

343、344...致動器343, 344. . . Actuator

4...光束4. . . beam

41...曝光用光束41. . . Exposure beam

42...量測用光束42. . . Measuring beam

Claims (16)

一種光學微影曝光系統,係包括:滾筒,具有一轉軸並以該轉軸為中心旋轉;基材,係繞設於該滾筒的外表面;滾筒操控設備,係用以對該滾筒進行量測並依據所量測的結果操控該滾筒,以補償該滾筒以該轉軸為中心旋轉所產生的位置及/或姿態的改變,該滾筒操控設備包括:滾筒量測模組,係具有振動分析儀和一對位移感測器,該振動分析儀係用以量測該滾筒沿著該轉軸軸心方向的位移,該對位移感測器係設置於該滾筒上方並間隔一預定距離,並用以量測該滾筒於旋轉過程中所產生的姿態傾斜;及滾筒致動裝置,係用以依據該滾筒量測模組的量測結果致動該滾筒,以補償該滾筒在旋轉過程中所產生的姿態傾斜;以及光路操控設備,係包括光學元件組和移動平台,該光學元件組係用以將一光束分為曝光用光束和量測用光束,而該移動平台係用以承載該光學元件組並平行於該滾筒的轉軸軸心方向進行線性移動,以使該曝光用光束和該滾筒之間產生相對運動而將一圖案曝光至該基材上,其中,該移動平台復用以依據該滾筒操控設備對該滾筒的量測結果,補償該滾筒於旋轉過程中該滾筒的位置及/或姿態的改變。 An optical lithography exposure system comprising: a drum having a rotating shaft and rotating around the rotating shaft; a substrate wound around an outer surface of the drum; and a drum operating device for measuring the drum and The drum is operated according to the measured result to compensate for the change of position and/or posture generated by the drum rotating around the rotating shaft. The drum operating device comprises: a drum measuring module, having a vibration analyzer and a For the displacement sensor, the vibration analyzer is configured to measure the displacement of the drum along the axis of the rotating shaft, and the pair of displacement sensors are disposed above the drum and spaced apart by a predetermined distance, and used to measure the displacement The posture of the drum is inclined during the rotation; and the drum actuating device is configured to actuate the drum according to the measurement result of the drum measuring module to compensate the posture tilt generated by the drum during the rotating process; And an optical path control device, comprising an optical component group and a mobile platform, wherein the optical component group is used to divide a light beam into an exposure beam and a measurement beam, and the mobile platform is used to carry The optical element group is linearly moved parallel to the axis of the rotation axis of the drum to cause a relative movement between the exposure beam and the roller to expose a pattern onto the substrate, wherein the mobile platform is multiplexed The change in the position and/or posture of the drum during the rotation of the drum is compensated for in accordance with the measurement result of the drum by the drum handling device. 如申請專利範圍第1項所述之光學微影曝光系統,其中,該滾筒致動裝置為壓電平台。 The optical lithography exposure system of claim 1, wherein the roller actuating device is a piezoelectric platform. 如申請專利範圍第1項所述之光學微影曝光系統,其中,該移動平台依據該滾筒量測模組對該滾筒所量測的結果而對該滾筒進行線性移動,以補償該滾筒於旋轉過程中在該轉軸軸心方向所產生的位置改變。 The optical lithography exposure system of claim 1, wherein the moving platform linearly moves the roller according to the result measured by the roller measuring module to compensate the roller for rotating The position produced in the direction of the axis of the spindle changes during the process. 如申請專利範圍第1項所述之光學微影曝光系統,其中,該移動平台依據該滾筒量測模組對該滾筒所量測的結果而產生傾斜,以補償該滾筒在旋轉過程中所產生的姿態傾斜。 The optical lithography exposure system of claim 1, wherein the moving platform is tilted according to a result measured by the roller measuring module on the roller to compensate for the roller being generated during the rotation process. The posture is tilted. 如申請專利範圍第1項所述之光學微影曝光系統,其中,該光路操控設備復包括光束量測模組及光束調整模組,該光束量測模組係用以對該量測用光束進行量測,以供該光束調整模組依據該光束量測模組的量測結果調整該光束,俾補償該移動平台對該滾筒相對運動時對曝光至該基材上的圖案所造成的影響。 The optical lithography exposure system of claim 1, wherein the optical path control device comprises a beam measuring module and a beam adjusting module, wherein the beam measuring module is used for the measuring beam Performing measurement for the beam adjustment module to adjust the beam according to the measurement result of the beam measurement module, and compensating for the influence of the moving platform on the pattern exposed to the substrate when the roller is relatively moved. . 如申請專利範圍第5項所述之光學微影曝光系統,其中,該光束調整模組係用以依據該光束量測模組的量測結果調整該光束,以補償該滾筒以該轉軸為中心旋轉時而對曝光至該基材的圖案所造成的影響。 The optical lithography exposure system of claim 5, wherein the beam adjustment module is configured to adjust the light beam according to the measurement result of the beam measurement module to compensate the roller as the center of the rotation axis The effect of rotation on the pattern exposed to the substrate. 如申請專利範圍第5項所述之光學微影曝光系統,其中,該光束量測模組包括分光器、兩個凸透鏡和兩個光位移感測器,其中,該分光器係用以將該量測用光束分成兩道光束,以分別透過該兩個凸透鏡聚焦,再投射至 該兩個光位移感測器,藉由量測投射至該光位移感測器上的光點的位置,計算出該光束的位移和角度之改變。 The optical lithography exposure system of claim 5, wherein the beam measuring module comprises a beam splitter, two convex lenses and two light displacement sensors, wherein the beam splitter is used to The measuring beam is split into two beams to be focused by the two convex lenses and then projected to The two light displacement sensors calculate the displacement and angle change of the light beam by measuring the position of the light spot projected onto the light displacement sensor. 如申請專利範圍第5項所述之光學微影曝光系統,其中,該光束調整模組具有複數個光學元件及複數個致動器,該光束調整模組係用以依據該光束量測模組所量測的結果,藉由該些致動器控制該複數個光學元件來調整該光束。 The optical lithography exposure system of claim 5, wherein the beam adjustment module has a plurality of optical components and a plurality of actuators, wherein the beam adjustment module is configured to use the beam measurement module As a result of the measurement, the plurality of optical elements are controlled by the actuators to adjust the light beam. 如申請專利範圍第5項所述之光學微影曝光系統,其中,該光學元件組包括複數個光學元件及複數個致動器,該些光學元件分別由該些致動器控制,以使該光束藉由該分光器產生該曝光用光束和量測用光束後,將該曝光用光束投射至該基材且將該量測用光束導入該光束量測模組。 The optical lithography exposure system of claim 5, wherein the optical component group comprises a plurality of optical components and a plurality of actuators, the optical components being respectively controlled by the actuators to enable the After the beam is generated by the beam splitter and the measuring beam, the beam for exposure is projected onto the substrate, and the measuring beam is introduced into the beam measuring module. 如申請專利範圍第1項所述之光學微影曝光系統,其中,該滾筒的旋轉係藉由旋轉馬達所驅動,以進行步進式或連續式轉動。 The optical lithography exposure system of claim 1, wherein the rotation of the drum is driven by a rotary motor for stepwise or continuous rotation. 如申請專利範圍第10項所述之光學微影曝光系統,其中,該滾筒之靠近該旋轉馬達的一端係架設於具V形槽或U形槽的承座上。 The optical lithography exposure system of claim 10, wherein an end of the roller adjacent to the rotary motor is mounted on a socket having a V-shaped groove or a U-shaped groove. 如申請專利範圍第1項所述之光學微影曝光系統,其中,該光束為氬離子雷射。 The optical lithography exposure system of claim 1, wherein the light beam is an argon ion laser. 一種光學微影曝光方法,係包括以下步驟:(1)令承載光學元件組之移動平台以平行外表面繞設有基材的滾筒的轉軸軸心方向進行線性移動,以使 光束經該光學元件組而產生之曝光用光束和該滾筒之間產生相對運動而將圖案曝光至該基材上;以及(2)令滾筒操控設備對該滾筒進行量測,以令該移動平台依據該滾筒操控設備的量測結果,補償該滾筒於旋轉過程中的位置及/或姿態的改變;其中,步驟(2)復包括:(2-1)令該滾筒操控設備的一對位移感測器量測該滾筒於旋轉過程中所產生的姿態傾斜,於該滾筒於旋轉過程中所產生的姿態傾斜大於或等於第一預定值時進至步驟(2-2),於該滾筒於旋轉過程中所產生的姿態傾斜小於該第一預定值時進至步驟(2-3);(2-2)令該滾筒操控設備的滾筒致動裝置補償該滾筒在旋轉過程中所產生的姿態傾斜,並返回步驟(2-1);(2-3)令該滾筒操控設備的振動分析儀量測該滾筒沿著該轉軸軸心方向的位移,於該滾筒沿著該轉軸軸心方向的位移大於或等於第二預定值時進至步驟(2-4),於該滾筒沿著該轉軸軸心方向的位移小於該第二預定值時進至步驟(2-5);(2-4)令該移動平台補償該滾筒於旋轉過程中沿著該轉軸軸心方向的位移,並返回步驟(2-3)之量測程序;及(2-5)令該曝光用光束將該圖案曝光至該基材上。 An optical lithography exposure method comprises the following steps: (1) linearly moving a moving platform carrying an optical component group with a parallel outer surface around a shaft axis direction of a drum provided with a substrate, so that And causing a relative movement between the beam of light generated by the optical element group and the roller to expose the pattern onto the substrate; and (2) causing the roller handling device to measure the roller to cause the mobile platform Compensating for the change of the position and/or posture of the drum during the rotation according to the measurement result of the drum operating device; wherein the step (2) comprises: (2-1) a pair of displacement senses of the drum operating device The measuring device measures the tilt of the posture generated by the drum during the rotating process, and proceeds to the step (2-2) when the tilt of the posture generated by the drum during the rotating process is greater than or equal to the first predetermined value, and the drum rotates When the posture tilt generated in the process is less than the first predetermined value, the process proceeds to step (2-3); (2-2) the drum actuating device of the drum operating device compensates for the posture tilt generated by the drum during the rotation process. And returning to step (2-1); (2-3) causing the vibration analyzer of the drum operating device to measure the displacement of the drum along the axis of the rotating shaft, and the displacement of the drum along the axis of the rotating shaft When it is greater than or equal to the second predetermined value, proceed to step (2-4) Step (2-5) when the displacement of the drum along the axial direction of the rotating shaft is less than the second predetermined value; (2-4) causing the moving platform to compensate the roller along the axis of the rotating shaft during the rotating process The displacement of the direction is returned to the measurement procedure of step (2-3); and (2-5) the exposure beam is used to expose the pattern onto the substrate. 如申請專利範圍第13項所述之光學微影曝光方法,於步驟(2)中,復包括令光路操控設備對該光束經該光學 元件組而產生之量測用光束進行量測。 The optical lithography exposure method of claim 13, wherein in step (2), the optical path control device is configured to pass the optical beam to the light beam. The measuring beam generated by the component group is measured. 如申請專利範圍第14項所述之光學微影曝光方法,於步驟(2)中,復包括令該光路操控設備依據其量測結果調整該光束,以補償該移動平台對該滾筒相對運動時對曝光至該基材上的圖案所造成的影響。 The optical lithography exposure method according to claim 14, wherein in the step (2), the optical path control device adjusts the light beam according to the measurement result to compensate the relative movement of the mobile platform to the roller. The effect on the pattern exposed to the substrate. 如申請專利範圍第14項所述之光學微影曝光方法,於步驟(2)中,復包括令該光路操控設備依據其量測結果調整該光束,以補償該滾筒於旋轉過程中對曝光至該基材上的圖案所造成的影響。The optical lithography exposure method of claim 14, wherein in the step (2), the optical path control device adjusts the light beam according to the measurement result to compensate the exposure of the roller to the rotation process. The effect of the pattern on the substrate.
TW99142074A 2010-12-03 2010-12-03 Optical system and method for lithography and exposure TWI407269B (en)

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US6271923B1 (en) * 1999-05-05 2001-08-07 Zygo Corporation Interferometry system having a dynamic beam steering assembly for measuring angle and distance
US20100127191A1 (en) * 2008-11-24 2010-05-27 Cymer, Inc. Systems and methods for drive laser beam delivery in an euv light source
WO2010075158A1 (en) * 2008-12-23 2010-07-01 3M Innovative Properties Company Roll-to-roll digital photolithography

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US20100127191A1 (en) * 2008-11-24 2010-05-27 Cymer, Inc. Systems and methods for drive laser beam delivery in an euv light source
WO2010075158A1 (en) * 2008-12-23 2010-07-01 3M Innovative Properties Company Roll-to-roll digital photolithography

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