TW202138931A - Exposure device, pattern-forming device, and exposure method to suppress the reduction of pattern-forming accuracy in MMG technology - Google Patents
Exposure device, pattern-forming device, and exposure method to suppress the reduction of pattern-forming accuracy in MMG technology Download PDFInfo
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- 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
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
- G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
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- G—PHYSICS
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- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
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- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70425—Imaging strategies, e.g. for increasing throughput or resolution, printing product fields larger than the image field or compensating lithography- or non-lithography errors, e.g. proximity correction, mix-and-match, stitching or double patterning
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- G03F9/7084—Position of mark on substrate, i.e. position in (x, y, z) of mark, e.g. buried or resist covered mark, mark on rearside, at the substrate edge, in the circuit area, latent image mark, marks in plural levels
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Abstract
[課題] 抑制在MMG技術中的圖案的形成精度的降低。 [解決手段] 在基板上掃描曝光第1圖案的曝光裝置具有:標記形成部,其將複數個對準標記形成於基板上;第1計測部,其計測透過標記形成部從而形成的複數個對準標記的位置;和輸出部,其為了可在曝光第2圖案的別的曝光裝置進行利用而輸出以第1計測部計測的對準標記的位置資訊;其中,標記形成部於第1基板位置形成包含至少2個對準標記的第1標記群後,於使前述基板移動至包含相對於將第1標記群的2個對準標記連結的直線而垂直的成分之方向的第2基板位置形成包含至少2個對準標記的第2標記群,對第1圖案進行掃描曝光於使基板從第1基板位置往第2基板位置移動的方向。[Subject] Suppresses the decrease in the accuracy of pattern formation in the MMG technology. [Solution] The exposure apparatus for scanning and exposing the first pattern on the substrate has: a mark forming section that forms a plurality of alignment marks on the substrate; and a first measurement section that measures the positions of the plurality of alignment marks formed by penetrating the mark forming section And an output unit for outputting the position information of the alignment mark measured by the first measuring unit in order to be used in another exposure device for exposing the second pattern; wherein the mark forming unit is formed at the first substrate position and includes at least 2 After the first mark group of the two alignment marks, the substrate is moved to a second substrate position including at least two components in a direction that includes a component perpendicular to the straight line connecting the two alignment marks of the first mark group. The second mark group of the alignment mark scans and exposes the first pattern in a direction that moves the substrate from the first substrate position to the second substrate position.
Description
本發明涉及在基板上將圖案進行曝光的曝光裝置、形成圖案的圖案形成裝置、曝光方法。The present invention relates to an exposure device that exposes a pattern on a substrate, a pattern forming device that forms a pattern, and an exposure method.
近年來,於平板顯示器(FPD),遮罩的大小大型化,現今需要不浪費地利用作為面板的基台的基板。為此,已提出在1個基板形成複數個不同的尺寸的面板之稱為所謂的MMG(Multi Model on Glass)的技術(專利文獻1參照)。在如此的MMG技術,透過複數個裝置形成於基板上的1個層的複數個圖案整體的尺寸與位置被用作為圖案的形成精度的評估指標。 [先前技術文獻]In recent years, in flat panel displays (FPD), the size of the mask has increased. Nowadays, it is necessary to use the substrate as the base of the panel without waste. For this reason, a technique called MMG (Multi Model on Glass) in which a plurality of panels of different sizes are formed on a single substrate has been proposed (refer to Patent Document 1). In such MMG technology, the overall size and position of a plurality of patterns of a layer formed on a substrate by a plurality of devices are used as an evaluation index of the accuracy of pattern formation. [Prior Technical Literature]
[專利文獻1]日本特開2005-092137號公報 [發明所欲解決之問題][Patent Document 1] JP 2005-092137 A [The problem to be solved by the invention]
在用於MMG技術的複數個裝置,有時在圖案的形成特性上發生個體差。此情況下,透過複數個裝置分別形成的複數個圖案的位置關係相對於目標位置發生偏移,致使難以在基板上精度佳地形成圖案。In a plurality of devices used in MMG technology, individual differences may occur in pattern formation characteristics. In this case, the positional relationship of the plurality of patterns respectively formed by the plurality of devices is shifted from the target position, making it difficult to accurately form the pattern on the substrate.
所以,本發明目的在於提供在為了抑制在MMG技術中的圖案的形成精度的降低方面有利的技術。Therefore, an object of the present invention is to provide a technique that is advantageous in order to suppress the decrease in the accuracy of pattern formation in the MMG technique.
[解決問題之技術手段][Technical means to solve the problem]
為了達成上述目的,作為本發明的一態樣的曝光裝置為一種曝光裝置,其為在基板上掃描曝光第1圖案的曝光裝置,為在與曝光前述第1圖案的區域不同的區域曝光第2圖案的不同的曝光裝置中的曝光之前掃描曝光前述第1圖案者,其具有:標記形成部,其將複數個對準標記形成於前述基板上;第1計測部,其計測透過前述標記形成部從而形成的複數個對準標記的位置;和輸出部,其為了可在曝光前述第2圖案的別的曝光裝置進行利用而輸出以前述第1計測部計測的對準標記的位置資訊;其中,前述標記形成部於第1基板位置形成包含至少2個對準標記的第1標記群後,於使前述基板移動至包含相對於將前述第1標記群的2個對準標記連結的直線而垂直的成分之方向的第2基板位置形成包含至少2個對準標記的第2標記群,對前述第1圖案進行掃描曝光於使前述基板從前述第1基板位置往前述第2基板位置移動的方向。In order to achieve the above object, an exposure apparatus as an aspect of the present invention is an exposure apparatus that scans and exposes a first pattern on a substrate, and exposes a second pattern in an area different from the area where the first pattern is exposed. The first pattern that is scanned and exposed before exposure in a different exposure device has: a mark forming portion that forms a plurality of alignment marks on the substrate; and a first measurement portion that measures through the mark forming portion The positions of the plurality of alignment marks thus formed; and an output unit for outputting the position information of the alignment marks measured by the first measurement unit in order to be usable in another exposure device that exposes the second pattern; wherein, After the mark forming portion forms a first mark group including at least two alignment marks on the first substrate position, the substrate is moved to include a straight line connecting the two alignment marks of the first mark group to be perpendicular The second substrate position in the direction of the component forms a second mark group including at least two alignment marks, and the first pattern is scanned and exposed in a direction that moves the substrate from the first substrate position to the second substrate position .
本發明的進一步之目的或其他態樣將透過在以下參照圖式進行說明之優選實施方式而予以明朗化。 本發明的其他特徵將由以下之實施方式(參照圖式)而明朗化。 [對照先前技術之功效]The further purpose or other aspects of the present invention will be clarified by the preferred embodiments described below with reference to the drawings. Other features of the present invention will be clarified by the following embodiments (refer to the drawings). [Compared with the effect of the previous technology]
依本發明時,例如可提供在為了抑制在MMG技術中的圖案的形成精度的降低方面有利的技術。According to the present invention, for example, it is possible to provide a technique that is advantageous in order to suppress a decrease in the accuracy of pattern formation in the MMG technique.
於以下,根據圖式詳細說明本發明的優選實施方式。In the following, preferred embodiments of the present invention will be described in detail based on the drawings.
<第1實施方式> 就涉及本發明的的第1實施方式的形成系統進行說明。本實施方式的形成系統為執行使用複數個圖案形成裝置在基板上的1個層之彼此不同的區域分別形成圖案的所謂的MMG技術的系統。圖案形成裝置方面,舉例如對基板進行掃描曝光而將遮罩的圖案轉印於基板的曝光裝置、使用模具在基板形成壓印材的圖案的壓印裝置、使用帶電粒子束在基板形成圖案的描繪裝置等。<First Embodiment> The formation system according to the first embodiment of the present invention will be described. The forming system of the present embodiment is a system that executes the so-called MMG technique in which a plurality of patterning devices are used to form patterns in areas different from each other in one layer on a substrate. Examples of the pattern forming device include an exposure device that scans and exposes a substrate and transfers the pattern of a mask to the substrate, an imprint device that uses a mold to form a pattern of an imprint material on the substrate, and a pattern that uses a charged particle beam to form a pattern on the substrate. Devices, etc.
此外,適用涉及本發明的MMG技術的「基板上的1個層」,例如可為在尚未形成有圖案的裸板上最初形成的第1層,惟不限於此,亦可為第2層以後。在本實施方式,就使用具有複數個曝光裝置的形成系統而在基板上的1個抗蝕層形成潛像圖案之例進行說明。於此,在基板方面,例如可適用玻璃板、半導體晶圓等,而在本實施方式就使用玻璃板作為基板之例進行說明。此外,在以下,有時僅將「基板上的1個層」稱為「基板上」。In addition, the "1 layer on the substrate" to which the MMG technology related to the present invention is applied may be, for example, the first layer that is initially formed on a bare board that has not yet been patterned, but it is not limited to this, and may be the second layer or later. . In this embodiment, an example in which a latent image pattern is formed on one resist layer on a substrate using a formation system having a plurality of exposure devices will be described. Here, in terms of the substrate, for example, a glass plate, a semiconductor wafer, etc. can be applied, but in this embodiment, an example in which a glass plate is used as the substrate will be described. In addition, in the following, only "one layer on the substrate" may be referred to as "on the substrate".
圖1為就本實施方式的形成系統100的整體構成進行繪示的示意圖。使相對於基板W的表面而垂直的方向為Z方向,使相對於Z方向而垂直的方向為X、Y方向。形成系統100包含第1曝光裝置10、第2曝光裝置20、搬送部30、主控制部40。搬送部30將基板W搬送至第1曝光裝置10及第2曝光裝置20。主控制部40例如以具有CPU、記憶體之電腦而構成,總體地控制形成系統100的整體。此外,主控制部40控制在第1曝光裝置10與第2曝光裝置20之間的資料、資訊的轉送。FIG. 1 is a schematic diagram illustrating the overall structure of the forming
圖2為就第1曝光裝置10的構成例進行繪示的圖。第1曝光裝置10具有圖案形成部11、標記形成部12、標記計測部13、控制部14。圖案形成部11包含光源11a、照明光學系統11b、遮罩台11c、投影光學系統11d、基板載台11e。遮罩台11c為可保持遮罩M而移動的載台。照明光學系統11b使用來自光源11a的光而就遮罩M進行照明。基板載台11e為可保持基板W而移動的載台。遮罩M與基板W隔著投影光學系統11d配置於光學上共軛的位置。投影光學系統11d將透過照明光學系統11b被照明的遮罩M的圖案投影於基板W上,在基板W上的抗蝕層形成潛像圖案。FIG. 2 is a diagram illustrating a configuration example of the
標記形成部12根據顯示應形成對準標記的目標位置座標之資訊,在基板W上形成對準標記。標記計測部13就透過標記形成部12形成的對準標記的位置進行計測。控制部14例如由具有CPU、記憶體等的電腦構成,依裝置座標系,控制圖案形成部11、標記形成部12及標記計測部13(亦即,控制透過第1曝光裝置10之各處理)。此外,控制部14,為了可在第2曝光裝置20利用,作用為輸出在第1曝光裝置10獲得的資料、資訊之輸出部。在本實施方式,控制部14,雖設為與主控制部40為不同形體,惟亦可設為主控制部40的構成要素。The
第2曝光裝置20具有圖案形成部21、標記計測部23、控制部24。在本實施方式的第2曝光裝置20在未設置標記形成部之點上與第1曝光裝置10不同,其以外的構成方面為相同。亦即,第2曝光裝置20的圖案形成部21及標記計測部23可被構成為分別與第1曝光裝置10的圖案形成部11及標記計測部13相同。此外,可在第2曝光裝置20亦設置標記形成部。圖案形成部21例如以第1曝光裝置10在與形成於基板W上之圖案的曝光區域不同的曝光區域,形成潛像圖案。標記計測部23就透過第1曝光裝置10的標記形成部12形成的對準標記的位置進行計測。控制部24例如由具有CPU、記憶體等的電腦構成,依裝置座標系而控制圖案形成部21及標記計測部23(亦即,控制透過第2曝光裝置20之各處理)。在本實施方式,控制部24雖設為與主控制部40為不同形體,惟亦可設為主控制部40的構成要素。The
[關於圖案形成精度]
接著,就形成系統100求出的圖案的形成精度,使用圖3進行說明。第1圖案P1被透過第1曝光裝置10的圖案形成部11形成。第2圖案P2被透過第2曝光裝置20的圖案形成部21形成於與形成第1圖案P1的曝光區域不同的曝光區域。在示於圖3之例,雖第1圖案P1及第2圖案P2在矩形的基板W被以相同的大小各1個形成於基板上,惟不限於此,亦可為彼此不同的尺寸及個數。[About pattern formation accuracy]
Next, the accuracy of pattern formation determined by the
形成系統100求出的圖案的形成精度可被根據形成於基板上的圖案整體的尺寸與位置進行評價。形成於基板上的圖案整體的尺寸例如可透過表示在形成於基板上的圖案整體之對角線的長度的第1指標TP(Total Pitch)而界定。在本實施方式,將透過第1曝光裝置10形成於基板上的第1圖案P1的右下的端點EP1和透過第2曝光裝置20形成於基板上的第2圖案P2的左上的端點EP2連結的直線的長度可被決定為第1指標TP。另一方面,形成於基板上的圖案整體的位置例如可透過表示在形成於基板上的圖案整體之中心點的位置的第2指標CS(Center Shift)而界定。在本實施方式,將端點EP1與端點EP2連結的直線之中心點可被決定為第2指標CS。The formation accuracy of the pattern determined by the
[比較例]
本實施方式的比較例方面,舉於第1曝光裝置10的圖案形成部11在基板W上形成3個對準標記的情況下之例。在示於圖4之例,3個標記AM1~AM3以未被配置於相同直線上的方式,形成在為矩形之基板W的四隅附近。如此般將3個標記AM1~AM3形成於基板W上時,可根據3個標記AM1~AM3的位置的計測結果而求出基板W的X方向偏移、Y方向偏移、繞Z軸的旋轉、X方向倍率、Y方向倍率。[Comparative example]
The comparative example of this embodiment is an example in the case where the
在形成系統100需要以上述的第1指標TP及第2指標CS分別落入容許範圍的方式在基板W上形成圖案。標記形成部12為2個的情況下,可思及以下順序:首先,如圖5(a)般同時形成標記AM1與標記AM2;之後,如圖5(b)般使保持基板W的基板載台11e移動於Y方向而形成標記AM3。In the forming
然而,於第1曝光裝置10,有時如圖5(c)般產生基板載台11e移動於從Y方向偏移的方向致使的誤差,亦即有時產生基板載台11e的漂移致使的誤差。在以下,將此誤差稱為基板載台11e的漂移。存在基板載台11e的漂移的情況下,形成標記AM3的位置形成於從本來預計形成的位置偏移的位置。However, in the
根據如此般形成的標記AM1~AM3的位置的計測結果並無法正確求出基板載台11e的漂移。因此,有時以第1指標TP及第2指標CS分別落入容許範圍的方式在基板W上形成圖案變困難。具體例方面,控制部24有時錯誤判別基板載台11e的漂移和基板W被載置於基板載台11e上之際的繞Z軸的旋轉方向的偏移,使得圖案的形成精度降低。另外,於第2曝光裝置20發生基板載台的漂移的情況、於第1曝光裝置10與第2曝光裝置20的雙方發生基板載台的漂移的情況皆可能有圖案的形成精度降低的情況。Based on the measurement results of the positions of the marks AM1 to AM3 formed in this way, the drift of the
[本實施方式的圖案形成處理]
在本實施方式,為了求出基板載台11e的漂移,非為如示於圖4的3個對準標記的形成,而為如示於圖6般進行4個標記AM1~AM4的形成。要使圖案形成的校正精度提升,優選上形成為,4個標記AM1~AM4被形成於基板W的四隅附近,將4個標記AM1~AM4連結的區域包含被以第1曝光裝置10及第2曝光裝置20進行曝光的曝光區域。透過4個對準標記的計測使得就基板載台11e的漂移亦可精度佳地加以求出。具體例方面,控制部24變得可判別如圖7(a)般存在基板載台11e的漂移的情況和如圖7(b)般在基板W被載置於基板載台11e上之際存在繞Z軸的旋轉方向的偏移的情況。藉此,發生基板載台11e的漂移的情況下,亦透過控制部24進行控制的第2曝光裝置20執行在圖案形成之際對應於基板載台11e的漂移的校正,使得可抑制圖案的形成精度的降低。[Pattern Formation Process of this Embodiment]
In this embodiment, in order to determine the drift of the
對圖案形成的位置進行校正的方法的一例方面,控制部24對為第2曝光裝置20的投影光學系統的構成要素之一的光學元件(例如,2個平行平板)的驅動、旋轉進行控制。透過光學元件的驅動、旋轉,可進行基板W上的曝光位置的校正(例如,為掃描曝光的方向之Y方向,為與進行掃描曝光的方向垂直的方向之X方向的倍率的校正)。As an example of the method of correcting the pattern formation position, the
另外,在用於形成系統100的第1曝光裝置10及第2曝光裝置20,有時在裝置固有的曝光中心的偏移發生個體差。特性指例如裝置座標系的誤差、在被載置基板W之際發生的誤差。如此,於第1曝光裝置10與第2曝光裝置20發生特性的個體差時,以第1曝光裝置10形成的第1圖案P1與以第2曝光裝置20形成的第2圖案P2的位置關係恐從目標位置關係偏移。其結果,作為圖案整體的尺寸的第1指標TP、及有時無法落入作為圖案整體的位置的第2指標CS的容許範圍。例如,即使在第1指標TP要求的精度為10μm以內,仍發生無法落入該容許範圍。In addition, in the
所以,在本實施方式的形成系統100,求出透過第1曝光裝置10的標記計測部13計測的對準標記的位置、和透過第2曝光裝置20的標記計測部23計測的對準標記的位置的差分。根據該差分,在第2曝光裝置20的座標系下校正形成於基板W上的第2圖案P2的曝光區域。具體而言,以起因於在第1曝光裝置10與第2曝光裝置20之圖案形成特性的個體差的第1圖案P1與第2圖案P2的位置關係的偏移被校正的方式,決定形成於基板W上的第2圖案P2的曝光區域。Therefore, in the
另外,在本實施方式雖敘述有關透過求出差分從而校正第2圖案P2的曝光區域,惟例如,亦可為在第1曝光裝置10與第2曝光裝置20的各者決定第1圖案P1與第2圖案P2的曝光區域的方法。In addition, in the present embodiment, the exposure area of the second pattern P2 is corrected by calculating the difference. However, for example, the first pattern P1 and the second pattern P1 may be determined in each of the
於以下,就在本實施方式的形成系統100之往基板W上的圖案形成處理,一面參照圖8一面進行說明。圖8,為就涉及本實施方式的往基板W上的圖案形成處理進行繪示的流程圖。示於圖8的流程圖的各程序可被基於透過主控制部40之控制而執行。此外,在圖8雖設想標記形成部12為2個的情況,惟亦可標記形成部12為1個,亦可為3個以上。此外,在圖8雖設想標記計測部13、23為2個的情況,惟亦可標記計測部13為1個,亦可為3個以上。Hereinafter, the pattern formation process on the substrate W in the
在步驟S11,透過搬送部30將基板W搬送至第1曝光裝置10。在步驟S12,根據顯示應形成的目標位置座標的資訊,在第1曝光裝置10的座標系下,透過第1曝光裝置10的標記形成部12在基板W上同時形成標記AM1與標記AM2(第1標記群)。亦即,將標記AM1與標記AM2(第1標記群)形成於在第1曝光裝置10的座標系下的該目標位置座標。In step S11, the substrate W is transported to the
在步驟S13,在第1曝光裝置10的座標系下,透過第1曝光裝置10的標記計測部13,計測在S12的程序形成於基板W上的標記AM1與標記AM2(第1標記群)的位置。In step S13, in the coordinate system of the
在步驟S14,為了使基板W移動往為了形成標記AM3與標記AM4(第2標記群)的基板位置,使保持基板W的基板載台11e移動。In step S14, in order to move the substrate W to the substrate position for forming the marks AM3 and AM4 (the second mark group), the
在步驟S15,根據顯示應形成的目標位置座標的資訊,在第1曝光裝置10的座標系下,透過第1曝光裝置10的標記形成部12在基板W上同時形成標記AM3與標記AM4(第2標記群)。亦即,將標記AM3與標記AM4(第2標記群)形成於在第1曝光裝置10的座標系下的該目標位置座標。此時,存在基板載台11e的漂移的情況下,如圖7(a)般標記AM3與標記AM4(第2標記群)被形成於從本來應形成的位置偏移的位置。In step S15, based on the information indicating the coordinates of the target position to be formed, in the coordinate system of the
在步驟S16,在第1曝光裝置10的座標系下,透過第1曝光裝置10的標記計測部13,計測在S15的程序形成於基板W上的標記AM3與標記AM4(第2標記群)的位置。透過S13的程序及S16的程序,可獲得顯示在第1曝光裝置10的座標系下的標記AM1~AM4的位置座標的標記座標資訊C1。此標記座標資訊C1具有在第1曝光裝置10固有地產生的誤差成分CM1、和透過標記形成部12之對準標記的形成誤差成分CMX。In step S16, in the coordinate system of the
在步驟S17,根據顯示應形成第1圖案P1的目標位置座標的位置資訊,在第1曝光裝置10的座標系下,透過第1曝光裝置10的圖案形成部11在基板W上形成第1圖案P1。In step S17, based on the position information showing the coordinates of the target position where the first pattern P1 should be formed, the first pattern is formed on the substrate W through the
在步驟S21,透過搬送部30將基板W從第1曝光裝置10往第2曝光裝置20搬送。在步驟S22,在第2曝光裝置20的座標系下,透過第2曝光裝置20的標記計測部23,計測在S12的程序及S15的程序形成於基板W上的標記AM1~AM4(第1標記群與第2標記群)的位置。藉此,可獲得顯示在第2曝光裝置20的座標系下的標記AM1~AM4(第1標記群與第2標記群)的位置座標的標記座標資訊C2。此標記座標資訊C2具有在第2曝光裝置20固有地產生的誤差成分CM2、和透過標記形成部12之對準標記的形成誤差成分CMX。In step S21, the substrate W is transported from the
在步驟S23,在第2曝光裝置20的座標系下求出將第2圖案P2形成於基板W上之際使用的校正值CV。校正值CV為用於校正第1曝光裝置10與第2曝光裝置20的特性的個體差者,亦即為用於校正在第1曝光裝置10固有地產生的誤差與在第2曝光裝置20固有地產生的誤差之差者,透過以下的式(1)求出。In step S23, the correction value CV used when forming the second pattern P2 on the substrate W is obtained in the coordinate system of the
CV=C2-C1
=(CM2+CMX)-(CM1+CMX)
=CM2-CM1 …(1)
在式(1),在S16的程序透過第1曝光裝置10獲得的標記座標資訊C1、和在S22的程序透過第2曝光裝置20獲得的標記座標資訊C2的差分被求出為校正值CV。於標記座標資訊C1及標記座標資訊C2,共通地包含對準標記的形成誤差成分CMX。為此,校正值CV為除去對準標記的形成誤差成分CMX之在第1曝光裝置10固有地產生的誤差成分CM1、和成為在第2曝光裝置20固有地產生的誤差成分CM2的差分。因此,產生透過標記形成部12之對準標記的形成誤差成分CMX的情況下,在本實施方式的依差分的校正為優選。CV=C2-C1
=(CM2+CMX)-(CM1+CMX)
=CM2-CM1 …(1)
In equation (1), the difference between the mark coordinate information C1 obtained by the
在步驟S24,根據顯示應形成第2圖案P2的目標位置座標的位置資訊,在第2曝光裝置20的座標系下,透過第2曝光裝置20的圖案形成部21在基板W上形成第2圖案P2。此時,根據在S23的程序求出的校正值CV,在第2曝光裝置20的座標系下決定形成於基板W上的第2圖案P2的位置。其結果,可使作為圖案整體的尺寸的第1指標TP及作為圖案整體的位置的第2指標CS分別落入容許範圍。在步驟S25,透過搬送部30將基板W從第2曝光裝置20搬出。In step S24, based on the position information showing the coordinates of the target position where the second pattern P2 should be formed, the second pattern is formed on the substrate W through the
如上述,本實施方式的形成系統100,根據在第1曝光裝置10獲得的標記座標資訊C1與在第2曝光裝置20獲得的標記座標資訊C2的差分,決定在第2曝光裝置20形成於基板W上的第2圖案P2的位置。此外,透過形成如示於圖6的4個對準標記,使得亦可求出基板載台11e的漂移,故可防止MMG技術所致的圖案的形成精度的降低。As described above, the forming
本實施方式的別的功效方面,比起對準標記的個數為3個的情況,可使各校正成分(尤其基板W的X方向倍率、Y方向倍率)的校正精度提升,亦可期待使透過MMG技術之圖案的形成精度提升的功效。In terms of other effects of this embodiment, compared to the case where the number of alignment marks is three, the correction accuracy of each correction component (especially the X-direction magnification and Y-direction magnification of the substrate W) can be improved, and it can also be expected to use The effect of improving the accuracy of pattern formation through MMG technology.
此外,在本實施方式形成的對準標記的個數亦可為5個以上。例如,如示於圖9,在對準標記為6個的情況下,在標記AM1~4之間存在標記AM5、6,使得可增加校正成分。具體而言,使得可校正基板W的X方向倍率、Y方向倍率的非線形成分。如此,增加對準標記的個數,使得亦可期待使透過MMG技術之圖案的形成精度提升的功效。In addition, the number of alignment marks formed in this embodiment may be 5 or more. For example, as shown in FIG. 9, when there are six alignment marks, there are marks AM5 and 6 between marks AM1 to 4, so that correction components can be added. Specifically, it is possible to correct the non-linear component of the X-direction magnification and the Y-direction magnification of the substrate W. In this way, increasing the number of alignment marks makes it possible to expect the effect of improving the accuracy of pattern formation through the MMG technology.
<第2實施方式>
在第1實施方式,說明有關透過第1曝光裝置10的標記形成部12從而在基板W上形成標記AM1~AM4的情況。相對於此,在本實施方式,說明有關透過與第1曝光裝置10為別的裝置從而在基板W上形成標記AM1~AM4的情況。亦即,在標記AM1~AM4被形成於基板W上的狀態下基板W被透過搬送部30搬送至第1曝光裝置10。此時,可不設置在圖2示出的第1曝光裝置10的標記形成部12。設置標記形成部12的理由方面,例如亦可在透過與第1曝光裝置10為別的裝置從而形成的對準標記方面圖案形成精度變不充分的情況下,為了透過標記形成部12將對準標記再形成於基板W上而設。<Second Embodiment>
In the first embodiment, a case where the marks AM1 to AM4 are formed on the substrate W through the
在本實施方式的形成系統100之往基板W上的圖案形成處理,對準標記的形成程序以外方面為相同。示於圖8的第1實施方式的流程圖的S12的程序及S15的程序以外方面為相同。The pattern formation process on the substrate W in the
如上述,在本實施方式,在外部的裝置形成對準標記,根據在第1曝光裝置10的標記座標資訊C1與在第2曝光裝置20的標記座標資訊C2的差分,決定第2圖案P2的曝光區域。此外,透過使對準標記的形成為4個,使得亦可求出基板載台11e的漂移,故可防止MMG技術所致的圖案的形成精度的降低。As described above, in this embodiment, the alignment mark is formed on an external device, and the difference between the mark coordinate information C1 in the
本實施方式的別的功效方面,比起對準標記的個數為3個的情況,可使各校正成分(尤其基板W的X方向倍率、Y方向倍率)的校正精度提升,亦可期待使透過MMG技術之圖案的形成精度提升的功效。In terms of other effects of this embodiment, compared to the case where the number of alignment marks is three, the correction accuracy of each correction component (especially the X-direction magnification and Y-direction magnification of the substrate W) can be improved, and it can also be expected to use The effect of improving the accuracy of pattern formation through MMG technology.
此外,在本實施方式形成的對準標記的個數亦可為5個以上。例如,如示於圖9,在對準標記為6個的情況下,在標記AM1~4之間存在標記AM5、6,使得可增加校正成分。具體而言,使得可校正基板W的X方向倍率、Y方向倍率的非線形成分。如此,增加對準標記的個數,使得亦可期待使透過MMG技術之圖案的形成精度提升的功效。In addition, the number of alignment marks formed in this embodiment may be 5 or more. For example, as shown in FIG. 9, when there are six alignment marks, there are marks AM5 and 6 between marks AM1 to 4, so that correction components can be added. Specifically, it is possible to correct the non-linear component of the X-direction magnification and the Y-direction magnification of the substrate W. In this way, increasing the number of alignment marks makes it possible to expect the effect of improving the accuracy of pattern formation through the MMG technology.
<物品之製造方法的實施方式> 涉及本發明的實施方式的物品之製造方法,適合於製造例如平板顯示器(FPD)。本實施方式的物品之製造方法包含使用上述的曝光裝置對塗佈於基板上的感光劑形成潛像圖案的程序(對基板進行曝光的程序)、和對以該程序形成了潛像圖案的基板進行顯影的程序。再者,如此之製造方法包含其他周知的程序(氧化、成膜、蒸鍍、摻雜、平坦化、蝕刻、抗蝕層剝離、切割、接合、封裝等)。本實施方式的物品之製造方法比起歷來的方法,在物品的性能、品質、生產性、生產成本中的至少一者方面有利。<Implementation of the manufacturing method of the article> The method of manufacturing an article related to the embodiment of the present invention is suitable for manufacturing, for example, a flat panel display (FPD). The manufacturing method of the article of the present embodiment includes a process of forming a latent image pattern on a photosensitive agent coated on a substrate using the above-mentioned exposure device (a process of exposing a substrate), and a process of forming a latent image pattern on the substrate by this process. Perform the development process. Furthermore, such a manufacturing method includes other well-known procedures (oxidation, film formation, vapor deposition, doping, planarization, etching, resist stripping, cutting, bonding, packaging, etc.). The manufacturing method of the article of the present embodiment is advantageous in at least one of the performance, quality, productivity, and production cost of the article compared to the conventional method.
<其他實施例> 本發明亦可將實現上述的實施方式的1個以上的功能的程式透過網路或記憶媒體而提供至系統或裝置,以該系統或裝置的電腦中的1個以上的處理器將程式讀出並執行的處理從而實現。此外,亦可透過實現1個以上的功能的電路(例如,ASIC)而實現。<Other Examples> The present invention can also provide a program that realizes one or more functions of the above-mentioned embodiments to a system or device through a network or a storage medium, and read the program by one or more processors in the computer of the system or device And the processing performed is thus realized. In addition, it can also be realized by a circuit (for example, ASIC) that realizes one or more functions.
以上,雖說明有關本發明之優選實施方式,惟本發明當然不限定於此等實施方式,在其要旨之範圍內,可進行各種的變化及變更。Although the preferred embodiments of the present invention have been described above, the present invention is of course not limited to these embodiments, and various changes and modifications can be made within the scope of the gist of the present invention.
10:第1曝光裝置 11:圖案形成部 12:標記形成部 13:標記計測部 20:第2曝光裝置 21:圖案形成部 23:標記計測部 30:搬送部 40:主控制部 100:形成系統10: The first exposure device 11: Pattern forming part 12: Mark formation part 13: Mark measurement department 20: The second exposure device 21: Pattern forming part 23: Mark measurement department 30: Transport Department 40: Main Control Department 100: Formation system
[圖1]為就形成系統的整體構成進行繪示的示意圖。 [圖2]為就第1曝光裝置的構成進行繪示的圖。 [圖3]為就圖案形成精度的指標進行繪示的圖。 [圖4]為就比較例中的圖案形成進行繪示的圖。 [圖5]為就比較例中的對準標記形成順序進行繪示的圖。 [圖6]為就以4個對準標記之圖案形成進行繪示的圖。 [圖7]為就可透過4個對準標記而判別的基板的位置偏移進行繪示的圖。 [圖8]為就圖案形成處理進行繪示的流程圖。 [圖9]為就形成有6個對準標記的基板進行繪示的圖。[Fig. 1] is a schematic diagram showing the overall structure of the forming system. [Fig. 2] A diagram showing the configuration of the first exposure device. [Fig. 3] is a graph showing the index of pattern formation accuracy. [Fig. 4] is a drawing showing the pattern formation in the comparative example. [Fig. 5] is a diagram showing the order of formation of alignment marks in a comparative example. [Fig. 6] is a diagram showing the pattern formation of 4 alignment marks. [Fig. 7] is a diagram showing the positional deviation of the substrate that can be discriminated through 4 alignment marks. [Fig. 8] is a flowchart showing the pattern forming process. [Fig. 9] is a diagram showing a substrate on which 6 alignment marks are formed.
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