TW201712980A - Chamber unit for real time detecting temperature of laser irradiated area, laser processing system including the chamber unit, and temperature measuring method of processed object - Google Patents
Chamber unit for real time detecting temperature of laser irradiated area, laser processing system including the chamber unit, and temperature measuring method of processed object Download PDFInfo
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- TW201712980A TW201712980A TW105123522A TW105123522A TW201712980A TW 201712980 A TW201712980 A TW 201712980A TW 105123522 A TW105123522 A TW 105123522A TW 105123522 A TW105123522 A TW 105123522A TW 201712980 A TW201712980 A TW 201712980A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
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Abstract
Description
本發明揭示一種雷射加工用腔室單元,詳細而言,揭示一種用於即時測定雷射照射區域的溫度的腔室單元、及包括上述腔室單元的雷射加工系統。The present invention discloses a chamber unit for laser processing. In detail, a chamber unit for instantaneously measuring the temperature of a laser irradiation area, and a laser processing system including the chamber unit are disclosed.
雷射加工系統利用光學系統將自雷射光源出射的雷射束照射至加工對象物,藉由照射此種雷射束而對加工對象物執行如標記(marking)、切割(dicing)、刻劃(scribing)等的加工作業。The laser processing system irradiates a laser beam emitted from a laser light source to an object to be processed by an optical system, and performs marking, dicing, and scribing on the object to be processed by irradiating the laser beam. (scribing) and other processing operations.
通常,雷射加工作業是以如下方式進行:於內部保持為真空的腔室單元內堆積加工對象物,藉由腔室單元的窗而向加工對象物照射雷射束。於該情形時,需要測定加工對象物的雷射照射區域的溫度,先前使用如下方法:利用一個窗對加工對象物照射雷射束,自溫度測定單元向雷射照射區域照射測定光束,藉此測定溫度。然而,此種方法存在通過設置於腔室單元的窗的雷射束的波長需與測定光束的波長一致的問題。Generally, the laser processing operation is performed by depositing an object to be processed in a chamber unit that is kept vacuum inside, and irradiating the object with a laser beam by a window of the chamber unit. In this case, it is necessary to measure the temperature of the laser irradiation region of the object to be processed, and a method of irradiating the object with a laser beam by one window and irradiating the measurement beam with the laser beam from the temperature measuring unit is used. The temperature was measured. However, this method has a problem that the wavelength of the laser beam disposed through the window of the chamber unit needs to coincide with the wavelength of the measuring beam.
[發明欲解決的課題] 本發明的至少一實施例提供一種用於即時測定雷射照射區域的溫度的腔室單元及包括其的雷射加工系統。 [解決課題的手段][Problem to be Solved by the Invention] At least one embodiment of the present invention provides a chamber unit for instantaneously measuring a temperature of a laser irradiation region and a laser processing system including the same. [Means for solving the problem]
於本發明的一觀點中,提供一種腔室單元,其於內部設置加工對象物,使雷射束自外部透射而照射至上述加工對象物,上述腔室單元包括: 底板(base plate); 蓋板(cover plate),其以覆蓋底板的方式設置; 第一窗(window),其設置至上述蓋板,使上述雷射束透射;及 第二窗,其與上述第一窗相隔而設置至上述蓋板,使用以測定上述加工對象物特定區域的溫度的測定光束透射。According to an aspect of the invention, there is provided a chamber unit in which an object to be processed is provided, and a laser beam is transmitted from the outside to the object to be processed, the chamber unit comprising: a base plate; a cover a cover plate disposed to cover the bottom plate; a first window disposed to the cover plate to transmit the laser beam; and a second window disposed to be spaced apart from the first window The cover plate is used to transmit a measurement beam for measuring the temperature of the specific region of the object to be processed.
上述第一窗及第二窗可設置至上述蓋板的第一壁面及第二壁面。此處,上述第二壁面可相對於上述第一壁面傾斜地形成。The first window and the second window may be disposed to the first wall surface and the second wall surface of the cover plate. Here, the second wall surface may be formed to be inclined with respect to the first wall surface.
上述腔室單元可更包括平台(stage),上述平台設置至上述底板,堆積上述加工對象物。此處,上述平台能夠以可於上述底板上移動的方式設置。並且,上述平台能夠以其一端部上下移動的方式設置,以便可相對於上述底板傾斜。The chamber unit may further include a stage, and the stage is provided to the bottom plate to deposit the object to be processed. Here, the above platform can be disposed in such a manner as to be movable on the above-mentioned bottom plate. Further, the above-mentioned platform can be disposed such that one end portion thereof moves up and down so as to be tiltable with respect to the bottom plate.
上述雷射束可傾斜地入射至堆積於上述平台的上述加工對象物的表面。另外,自上述加工對象物反射的上述雷射束的一部分可向上述蓋板的內壁面中的未形成上述第一窗及第二窗的區域行進。The laser beam is obliquely incident on the surface of the object to be processed deposited on the stage. Further, a part of the laser beam reflected from the object to be processed may travel to a region of the inner wall surface of the cover plate where the first window and the second window are not formed.
上述雷射束與上述測定光束的波長可不同,因此上述第一窗與上述第二窗可包括不同的材質。上述腔室單元的內部可保持為真空。The laser beam may have a different wavelength from the measurement beam, and thus the first window and the second window may include different materials. The interior of the chamber unit described above can be maintained in a vacuum.
於另一觀點中,提供一種雷射加工系統,其包括: 雷射照射單元,其向加工對象物出射雷射束; 溫度測定單元,其出射用以測定上述加工對象物的特定區域的溫度的測定光束;及 腔室單元,其於內部設置上述加工對象物;且 上述腔室單元包括: 底板; 蓋板,其以覆蓋底板的方式設置; 第一窗,其設置至上述蓋板,使上述雷射束透射; 第二窗,其與上述第一窗相隔而設置至上述蓋板,使上述測定光束透射。In another aspect, a laser processing system includes: a laser irradiation unit that emits a laser beam to an object to be processed; and a temperature measuring unit that emits a temperature for determining a temperature of a specific region of the object to be processed a measuring beam; and a chamber unit internally provided with the object to be processed; and the chamber unit comprises: a bottom plate; a cover plate disposed to cover the bottom plate; and a first window disposed to the cover plate to enable the The laser beam is transmitted; the second window is spaced apart from the first window and disposed to the cover plate to transmit the measuring beam.
上述雷射加工系統可更包括將上述腔室單元的內部保持為真空的真空單元。The laser processing system described above may further include a vacuum unit that maintains the interior of the chamber unit as a vacuum.
上述第一窗及第二窗設置至上述蓋板的第一壁面及第二壁面,上述第二壁面可相對於上述第一壁面傾斜地形成。The first window and the second window are provided to the first wall surface and the second wall surface of the cover plate, and the second wall surface is formed to be inclined with respect to the first wall surface.
上述腔室單元可更包括平台,上述平台設置至上述底板,堆積上述加工對象物。此處,上述平台能夠以可於上述底板上移動的方式設置,並且上述平台能夠以其一端部上下移動的方式設置,以便可相對於上述底板傾斜。The chamber unit may further include a platform, and the platform is provided to the bottom plate to deposit the object to be processed. Here, the above-mentioned platform can be disposed in such a manner as to be movable on the above-mentioned bottom plate, and the above-mentioned platform can be disposed in such a manner that one end portion thereof moves up and down so as to be tiltable with respect to the above-mentioned bottom plate.
於又一觀點中,提供一種加工對象物的溫度測定方法,其是測定設置於包括底板及以覆蓋上述底板的方式設置的蓋板的腔室單元的內部的加工對象物的溫度的方法,且 雷射束藉由上述蓋板的第一窗照射至上述加工對象物而執行雷射加工作業,用以測定溫度的測定光束藉由上述蓋板的第二窗照射至上述加工對象物而測定上述加工對象物的特定區域的溫度。 [發明效果]In another aspect, a method for measuring a temperature of an object to be processed, which is a method of measuring a temperature of an object to be processed inside a chamber unit including a bottom plate and a cover plate provided to cover the bottom plate, and The laser beam is irradiated to the object to be processed by the first window of the cover plate to perform a laser processing operation, and the measurement beam for measuring the temperature is irradiated to the object to be processed by the second window of the cover plate, and the above-described object is measured. The temperature of a specific area of the object to be processed. [Effect of the invention]
根據本發明的至少一實施例,於腔室單元的蓋板的不同的第一壁面及第二壁面分別設置第一窗及第二窗,藉此雷射束可透射第一窗而對加工對象物進行雷射加工作業,測定光束透射第二窗而測定加工對象物的特定區域的溫度。藉此,於進行雷射加工作業的期間,亦可即時測定監控加工對象物特定區域(例如,雷射照射區域或其周圍區域等)的溫度,並且可即時確認雷射加工作業的品質。另外,可使用具有與雷射束不同的波長的各種波長的光作為測定光束。According to at least one embodiment of the present invention, the first window and the second window are respectively disposed on different first wall surfaces and second wall surfaces of the cover plate of the chamber unit, whereby the laser beam can transmit the first window to the processing object. The object is subjected to a laser processing operation, and the measurement beam is transmitted through the second window to measure the temperature of a specific region of the object to be processed. Thereby, during the laser processing operation, the temperature of the specific region (for example, the laser irradiation region or its surrounding region) of the processing target can be measured and the quality of the laser processing operation can be confirmed immediately. In addition, light of various wavelengths having a wavelength different from that of the laser beam can be used as the measuring beam.
以下,參照隨附圖式,詳細地對本發明進行說明。如下所例示的實施例並不限定本發明的範圍,而是為了向於本技術領域內具有常識者說明本發明而提供。於圖中,相同的參照符號表示相同的構成要素,為了說明的明確性,可誇張地表示各構成要素的尺寸或厚度。並且,例如於說明為特定的構成要素存在於基板時,上述構成要素能夠以與基板直接相接的方式存在,亦可於上述構成要素與基板之間存在其他構成要素。另外,於以下實施例中,構成各構成要素的物質僅為示例,因此亦可使用除此之外的其他物質。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The embodiments exemplified below are not intended to limit the scope of the invention, but are provided to illustrate the invention to those skilled in the art. In the drawings, the same reference numerals are given to the same components, and the size or thickness of each component can be exaggerated for clarity of description. Further, for example, when a specific constituent element is present on the substrate, the constituent element may be directly in contact with the substrate, or another constituent element may be present between the constituent element and the substrate. Further, in the following examples, the substances constituting the respective constituent elements are merely examples, and other materials may be used.
以下所記述的例示性的實施例的腔室單元於其內部設置有加工對象物,使雷射束自外部透射腔室單元而照射至加工對象物,藉此進行雷射加工作業。The chamber unit of the exemplary embodiment described below is provided with an object to be processed, and the laser beam is irradiated from the outside to the object to be processed by the laser beam, thereby performing a laser processing operation.
圖1是本發明的例示性的實施例的腔室單元的立體圖,圖2是圖1所示的腔室單元的側視圖。另外,圖3及圖4表示腔室單元的內部剖面。1 is a perspective view of a chamber unit of an exemplary embodiment of the present invention, and FIG. 2 is a side view of the chamber unit shown in FIG. 1. 3 and 4 show an internal cross section of the chamber unit.
參照圖1至圖4,腔室單元100包括底板(base plate)105、及以覆蓋上述底板105的方式設置的蓋板(cover plate)110。此處,於蓋板110設置有第一窗(window)121及第二窗122。另外,於底板105設置有堆積加工對象物W的平台(stage)130。Referring to FIGS. 1 through 4, the chamber unit 100 includes a base plate 105, and a cover plate 110 disposed to cover the above-described bottom plate 105. Here, a first window (window) 121 and a second window 122 are provided on the cover plate 110. Further, a stage 130 on which the object W is deposited is provided on the bottom plate 105.
第一窗121是使外部的雷射束L透射的部位,可設置至蓋板110的第一壁面110a(於圖1中為蓋板的上表面)。自設置於腔室單元100的外部、例如腔室單元100的上部的雷射照射單元200出射的雷射束L可透射蓋板110的第一窗121而照射至堆積於平台130上的加工對象物W。The first window 121 is a portion through which the external laser beam L is transmitted, and may be provided to the first wall surface 110a of the cover plate 110 (the upper surface of the cover plate in FIG. 1). The laser beam L emitted from the laser irradiation unit 200 provided outside the chamber unit 100, for example, the upper portion of the chamber unit 100, may be transmitted through the first window 121 of the cover plate 110 to be irradiated onto the processing object stacked on the stage 130. W.
第一窗121可包括可使入射的雷射束L的波長良好地透射的材質。例如,於雷射束L具有例如248 nm、266 nm、355 nm等的紫外線範圍的波長的情形時,第一窗121例如可包括熔融矽石(fused silica)等。並且,於雷射束L具有可見光範圍的波長的情形時,第一窗121例如可包括石英(Quartz)等。另外,於雷射束L具有紅外線範圍的波長的情形時,第一窗121可包括ZnSe等。然而,以上所提及的第一窗121的材質僅為示例,除此之外,第一窗121亦可包括各種材質。The first window 121 may include a material that can transmit the wavelength of the incident laser beam L well. For example, in the case where the laser beam L has a wavelength of an ultraviolet range of, for example, 248 nm, 266 nm, 355 nm, or the like, the first window 121 may include, for example, fused silica or the like. Further, in the case where the laser beam L has a wavelength in the visible light range, the first window 121 may include, for example, quartz (Quartz) or the like. In addition, in the case where the laser beam L has a wavelength in the infrared range, the first window 121 may include ZnSe or the like. However, the material of the first window 121 mentioned above is merely an example, and in addition, the first window 121 may also include various materials.
第二窗122是使用以測定溫度的測定光束DL透射的部位,可設置至蓋板110的第二壁面110b(於圖1中為蓋板110的一側面)。自設置於腔室單元100的外部、例如腔室單元100的一側上部的溫度測定單元300出射的測定光束DL可透射蓋板110的第二窗122而照射至堆積於平台130上的加工對象物W的特定區域。藉此,溫度測定單元300可即時測定監控加工對象物130的特定區域的溫度。The second window 122 is a portion through which the measurement beam DL for measuring the temperature is transmitted, and is provided to the second wall surface 110b of the cover plate 110 (one side surface of the cover plate 110 in FIG. 1). The measurement light beam DL emitted from the temperature measuring unit 300 provided outside the chamber unit 100, for example, the upper portion of the chamber unit 100, can be transmitted through the second window 122 of the cover plate 110 to be irradiated onto the processing object stacked on the stage 130. A specific area of the object W. Thereby, the temperature measuring unit 300 can immediately measure the temperature of the specific region of the processing object 130.
設置第二窗122的第二壁面110b可相對於設置第一窗121的第一壁面110a傾斜地形成。如上所述般定位使測定光束DL透射的第二窗122的第二壁面110b相對於定位使雷射束L透射的第一窗121的第一壁面110a傾斜地形成的原因在於,藉由調節自溫度測定單元300出射的測定光束DL入射至第二窗122的角度而使測定光束DL準確地到達腔室單元100內的加工對象物W上的所期望的位置。另一方面,本實施例並非必須限定於此,設置第二窗122的第二壁面110b亦可不相對於設置第一窗121的第一壁面110a傾斜地形成。The second wall surface 110b on which the second window 122 is disposed may be formed obliquely with respect to the first wall surface 110a on which the first window 121 is disposed. The reason why the second wall surface 110b of the second window 122 that transmits the measurement beam DL as described above is obliquely formed with respect to the first wall surface 110a of the first window 121 that is positioned to transmit the laser beam L is by adjusting the self-temperature The measurement beam DL emitted from the measurement unit 300 is incident on the angle of the second window 122, and the measurement beam DL is accurately reached at a desired position on the object W in the chamber unit 100. On the other hand, the present embodiment is not necessarily limited thereto, and the second wall surface 110b on which the second window 122 is provided may not be formed obliquely with respect to the first wall surface 110a on which the first window 121 is provided.
透射第二窗122的測定光束DL可具有與透射第一窗121的雷射束L不同的波長,但並非必須限定於此。第二窗122可包括可使入射的測定光束DL的波長良好地透射的材質。例如,於測定光束DL具有紅外線範圍的波長的情形時,第二窗122可包括ZnSe等。然而,上述內容僅為示例。本實施例中所使用的測定光束DL可具有各種波長範圍,與此相對,第二窗122可包括可使上述各種波長範圍的光良好地透射的材質。The measurement beam DL transmitted through the second window 122 may have a different wavelength from the laser beam L transmitted through the first window 121, but is not necessarily limited thereto. The second window 122 may include a material that can transmit the wavelength of the incident measuring beam DL well. For example, in the case where the measurement beam DL has a wavelength in the infrared range, the second window 122 may include ZnSe or the like. However, the above is only an example. The measurement beam DL used in the present embodiment may have various wavelength ranges, whereas the second window 122 may include a material that can transmit light of the above various wavelength ranges well.
於底板105的上表面,可設置堆積加工對象物W的平台130。另外,如下所述,平台130可相對於底板105傾斜地設置,其傾斜角度可實現各種調節。為此,平台130的一端部可藉由導引構件137而相對於底板105上下移動,平台130的另一端部藉由防止上下移動的銷(pin)135而固定。如上所述般相對於底板105傾斜地配置平台130的原因在於,可使透射第一窗121的雷射束L或透射第二窗122的測定光束DL準確地入射至加工對象物W的所期望的區域。另一方面,設置於底板105上的平台130以可於底板105上移動至所期望的位置的方式設置。On the upper surface of the bottom plate 105, a stage 130 on which the object W to be processed is stacked can be disposed. In addition, as will be described below, the platform 130 can be disposed obliquely with respect to the bottom plate 105, and its tilt angle can achieve various adjustments. To this end, one end portion of the platform 130 can be moved up and down with respect to the bottom plate 105 by the guiding member 137, and the other end portion of the platform 130 is fixed by a pin 135 that prevents movement up and down. The reason why the stage 130 is disposed obliquely with respect to the bottom plate 105 as described above is that the laser beam L that transmits the first window 121 or the measurement light beam DL that transmits the second window 122 can be accurately incident on the desired object W. region. On the other hand, the platform 130 disposed on the bottom plate 105 is disposed in such a manner as to be movable on the bottom plate 105 to a desired position.
本實施例的腔室單元100較佳為其內部保持為真空。其原因在於,加工對象物W於藉由雷射束L的照射而進行反應的過程中不應受到其他氣體或雜質的阻礙,並且若於真空狀態下向腔室單元100的內部注入與加工對象物W進行反應的特定氣體,則可執行可靠性較高的加工製程。The chamber unit 100 of the present embodiment preferably maintains its interior as a vacuum. The reason for this is that the object to be processed W is not hindered by other gases or impurities during the reaction by the irradiation of the laser beam L, and if it is injected into the interior of the chamber unit 100 in a vacuum state, the object to be processed is processed. The specific gas in which the substance W reacts can perform a highly reliable processing process.
圖3是表示圖1所示的腔室單元的內部剖面的圖,且是表示平台相對於底板傾斜第一角度θ1 的狀態的圖。FIG. 3 shows an internal cross-section of the chamber unit shown in FIG. 1, and showing the platform relative to the floor is inclined at a first angle θ 1 of the state of FIG.
參照圖3,於腔室單元100的上部,設置有出射雷射束L的雷射照射單元200,於腔室單元100的一側上部,設置有出射用以測定溫度的測定光束DL的溫度測定單元300。另外,於腔室單元100的內部,平台130相對於底板105傾斜第一角度θ1 ,於如上所述般傾斜的平台130的上表面堆積有加工對象物W。Referring to Fig. 3, in the upper portion of the chamber unit 100, a laser irradiation unit 200 for emitting a laser beam L is provided, and at a higher portion of one side of the chamber unit 100, a temperature measurement of a measuring beam DL for measuring temperature is provided. Unit 300. Further, inside the chamber unit 100, the stage 130 is inclined by a first angle θ 1 with respect to the bottom plate 105, and the object W is deposited on the upper surface of the stage 130 inclined as described above.
於如上所述的構造中,自雷射照射單元200出射的雷射束L透射設置至蓋板110的第一壁面110a(例如,上表面)的第一窗121而照射至加工對象物W。此處,雷射束L可傾斜地入射至加工對象物W的表面。如上所述,雷射束L照射至加工對象物W的特定區域,藉此可執行加工作業。In the configuration as described above, the laser beam L emitted from the laser irradiation unit 200 is transmitted to the object W by being transmitted through the first window 121 provided to the first wall surface 110a (for example, the upper surface) of the cap plate 110. Here, the laser beam L is obliquely incident on the surface of the object W. As described above, the laser beam L is irradiated to a specific region of the object W, whereby the processing operation can be performed.
於此種雷射加工製程中,入射至加工對象物W的雷射束L的一部分會反射,此種反射的雷射束RL較佳為向蓋板110的內壁面中的未形成第一窗121及第二窗122的部分行進。其原因在於,於自加工對象物W反射的雷射束RL向第一窗121或第二窗122側行進的情形時,第一窗121或第二窗122會因反射的雷射束RL而受損。In such a laser processing process, a part of the laser beam L incident on the object W is reflected, and the reflected laser beam RL is preferably such that the first window is not formed in the inner wall surface of the cover plate 110. 121 and a portion of the second window 122 travel. This is because the first window 121 or the second window 122 is caused by the reflected laser beam RL when the laser beam RL reflected from the processing object W travels toward the first window 121 or the second window 122 side. Damaged.
自溫度測定單元300出射的測定光束DL可透射設置至蓋板110的傾斜的第二壁面110b(例如,側面)的第二窗122而照射至加工對象物W的特定區域。藉此,於進行雷射加工作業的期間,溫度測定單元300亦可測定監控加工對象物W的特定區域的溫度。此處,欲測定溫度的加工對象物W的特定區域通常可為雷射照射區域,但並不限定於此,亦可為雷射照射區域的周邊區域或其他區域。The measurement light beam DL emitted from the temperature measuring unit 300 can be transmitted to a specific region of the processing object W by being transmitted through the second window 122 provided to the inclined second wall surface 110b (for example, the side surface) of the cap plate 110. Thereby, the temperature measuring unit 300 can also measure the temperature of the specific region of the processing target W during the laser processing operation. Here, the specific region of the object W to be measured for temperature may be a laser irradiation region. However, the present invention is not limited thereto, and may be a peripheral region of the laser irradiation region or another region.
圖4是表示圖1所示的腔室單元的內部剖面的圖,且是表示平台相對於底板傾斜第二角度θ2 的狀態的圖。4 is a view showing an internal cross section of the chamber unit shown in FIG. 1, and is a view showing a state in which the stage is inclined by a second angle θ 2 with respect to the bottom plate.
參照圖4,與圖3相比,平台130於底板105上沿一方向直線移動,並且平台130以大於圖3所示的第一角度θ1 的第二角度θ2 傾斜。自雷射照射單元200出射而透射第一窗121的雷射束L可照射至加工對象物W的其他區域來進行雷射加工作業。並且,自溫度測定單元300出射而透射第二窗122的測定光束DL可照射至加工對象物W的特定區域來即時測定並監控溫度。另一方面,可適當地調節圖3及圖4所示的平台130的傾斜角度θ1 、θ2 ,以使雷射束L及/或測定光束DL入射至加工對象物W的角度最佳化。Referring to FIG. 4, in comparison with FIG. 3, the platform 130 is linearly moved in one direction on the bottom plate 105, and the platform 130 is inclined at a second angle θ 2 greater than the first angle θ 1 shown in FIG. The laser beam L emitted from the laser irradiation unit 200 and transmitted through the first window 121 can be irradiated to other areas of the object W to perform a laser processing operation. Further, the measurement light beam DL emitted from the temperature measuring unit 300 and transmitted through the second window 122 can be irradiated to a specific region of the processing object W to instantly measure and monitor the temperature. On the other hand, the inclination angles θ 1 and θ 2 of the stage 130 shown in FIGS. 3 and 4 can be appropriately adjusted so that the angle at which the laser beam L and/or the measurement beam DL is incident on the object W is optimized. .
如上所述,於本實施例的腔室單元100中,在蓋板110的不同的壁面、即第一壁面110a及第二壁面110b分別設置第一窗121及第二窗122,藉此雷射束L可透射第一窗121而照射至加工對象物W的特定區域來進行雷射加工作業,測定光束DL透射第二窗122而測定加工對象物W的特定區域的溫度。藉此,於進行雷射加工作業的期間,亦可測定監控加工對象物W的特定區域(例如,雷射照射區域或其周圍區域等)的溫度,並且可即時確認雷射加工作業的品質。As described above, in the chamber unit 100 of the present embodiment, the first window 121 and the second window 122 are respectively disposed on different wall surfaces of the cover 110, that is, the first wall surface 110a and the second wall surface 110b, thereby performing laser irradiation. The beam L is transmitted through the first window 121 and irradiated to a specific region of the object W to perform a laser processing operation, and the measurement beam DL is transmitted through the second window 122 to measure the temperature of the specific region of the object W. Thereby, during the laser processing operation, the temperature of the specific region (for example, the laser irradiation region or its surrounding region) of the processing target W can be measured, and the quality of the laser processing operation can be confirmed immediately.
作為具體例,於如矽薄膜等的特定加工對象物的情形時,可即時測定藉由照射雷射束而進行反應的加工對象物的溫度或損傷(damage)區間等。並且,若於向腔室單元的內部注入蝕刻氣體的狀態下對光罩照射雷射束,則測定雷射束的照射區域或其周圍區域的溫度,藉此可僅對所期望的區域執行蝕刻製程。另外,可藉由一面執行晶圓退火製程,一面即時測定雷射束的特定照射區域或其周圍區域的溫度而準確地執行所期望的退火製程。As a specific example, in the case of a specific object to be processed such as a film, the temperature or damage interval of the object to be processed by the irradiation of the laser beam can be measured immediately. Further, when the ray is irradiated with the laser beam while the etching gas is injected into the inside of the chamber unit, the temperature of the irradiation region of the laser beam or the surrounding region thereof is measured, whereby etching can be performed only on the desired region. Process. In addition, the desired annealing process can be accurately performed by performing a wafer annealing process while measuring the temperature of a specific irradiation region of the laser beam or a surrounding region thereof.
另外,於腔室單元100的蓋板110設置分別使雷射束L與測定光束DL透射的第一窗121及第二窗122,藉此可將具有與雷射束L不同的波長的各種光用作測定光束DL。Further, the cover 110 of the chamber unit 100 is provided with a first window 121 and a second window 122 that respectively transmit the laser beam L and the measurement beam DL, whereby various lights having wavelengths different from the laser beam L can be used. Used as the measuring beam DL.
圖5是本發明的另一例示性的實施例的腔室單元的內部剖面圖。Figure 5 is an internal cross-sectional view of a chamber unit of another exemplary embodiment of the present invention.
參照圖5,與上述實施例不同,於本實施例的腔室單元100'中,平台130並不相對於底板105傾斜地設置,而是與底板105並排設置。此處,平台130以可於底板105上移動至所期望的位置的方式設置,藉此可向加工對象物W的各個區域照射雷射束L及測定光束DL。Referring to FIG. 5, unlike the above embodiment, in the chamber unit 100' of the present embodiment, the platform 130 is not disposed obliquely with respect to the bottom plate 105, but is disposed side by side with the bottom plate 105. Here, the stage 130 is provided so as to be movable to a desired position on the bottom plate 105, whereby the laser beam L and the measurement beam DL can be irradiated to respective areas of the object W.
另外,能夠以雷射束L可傾斜地照射至堆積於平台130的加工對象物W的表面的方式配置雷射照射單元200。如上所述,平台130與底板105並排設置的實施例可應用於例如照射至加工對象物W的雷射束L的尺寸較大的情形。In addition, the laser irradiation unit 200 can be disposed such that the laser beam L can be obliquely irradiated onto the surface of the object W deposited on the stage 130. As described above, the embodiment in which the stage 130 is disposed side by side with the bottom plate 105 can be applied to, for example, a case where the size of the laser beam L irradiated to the processing object W is large.
圖6是概略性地表示本發明的又一實施例的雷射加工系統的立體圖。於圖6中,表示包括上述腔室單元100的雷射加工系統1000。Fig. 6 is a perspective view schematically showing a laser processing system according to still another embodiment of the present invention. In Fig. 6, a laser processing system 1000 including the above described chamber unit 100 is shown.
參照圖6,本實施例的雷射加工系統1000可包括雷射照射單元200、溫度測定單元300及腔室單元100。例如,雷射照射單元200可設置至腔室單元100的上部,溫度測定單元300可設置至腔室單元100的一側上部。然而,上述內容僅為示例,雷射照射單元200及溫度測定單元300的位置可實現多種變形。Referring to FIG. 6, the laser processing system 1000 of the present embodiment may include a laser irradiation unit 200, a temperature measuring unit 300, and a chamber unit 100. For example, the laser irradiation unit 200 may be disposed to an upper portion of the chamber unit 100, and the temperature measuring unit 300 may be disposed to an upper portion of one side of the chamber unit 100. However, the above is merely an example, and the positions of the laser irradiation unit 200 and the temperature measuring unit 300 can be variously modified.
雷射照射單元200用於對設置於腔室單元100的內部的加工對象物W照射雷射束L而執行加工作業,例如可出射具有紫外線範圍的波長的雷射束L。然而,上述內容僅為示例,除此之外,雷射照射單元200可根據加工作業的種類而出射各種波長範圍的雷射束L。The laser irradiation unit 200 performs a processing operation by irradiating the object to be processed W provided in the chamber unit 100 with the laser beam L, and for example, can emit a laser beam L having a wavelength in the ultraviolet range. However, the above is merely an example, and in addition, the laser irradiation unit 200 can emit the laser beam L of various wavelength ranges according to the kind of processing work.
溫度測定單元300出射用以測定溫度的測定光束DL而測定加工對象物W中的被照射雷射束L的區域、其周圍區域或其他區域的溫度。例如,溫度測定單元300可出射具有可見光範圍的波長或紅外線範圍的波長的測定光束DL,但並非必須限定於此。作為此種溫度測定單元300,例如可使用熱影像相機或高溫計(pyrometer)等。然而,並不限定於此。The temperature measuring unit 300 emits the measurement light beam DL for measuring the temperature, and measures the temperature of the region of the object to be irradiated L in the object W to be irradiated, the surrounding region thereof, or other regions. For example, the temperature measuring unit 300 may emit the measuring beam DL having a wavelength in the visible light range or a wavelength in the infrared range, but is not necessarily limited thereto. As such a temperature measuring unit 300, for example, a thermal image camera, a pyrometer, or the like can be used. However, it is not limited to this.
參照圖3,腔室單元100包括底板105、以覆蓋底板105的方式設置的蓋板110、與設置至蓋板110的第一窗121及第二窗122。此處,第一窗121是使雷射束L透射的部位,可設置至蓋板110的第一壁面110a(例如,蓋板110的上表面)。自設置於腔室單元100的上部的雷射照射單元200出射的雷射束L可透射蓋板110的第一窗121而照射至堆積於平台130上的加工對象物W的特定區域。此種第一窗121可包括可使入射的雷射束L的波長良好地透射的材質。Referring to FIG. 3, the chamber unit 100 includes a bottom plate 105, a cover plate 110 disposed to cover the bottom plate 105, and a first window 121 and a second window 122 disposed to the cover plate 110. Here, the first window 121 is a portion through which the laser beam L is transmitted, and may be provided to the first wall surface 110a of the cap plate 110 (for example, the upper surface of the cap plate 110). The laser beam L emitted from the laser irradiation unit 200 provided at the upper portion of the chamber unit 100 can be transmitted through the first window 121 of the cover plate 110 to be irradiated to a specific region of the processing object W stacked on the stage 130. Such a first window 121 may include a material that can transmit the wavelength of the incident laser beam L well.
第二窗122是使用以測定溫度的測定光束DL透射的部位,可設置至蓋板110的第二壁面110b(例如,蓋板110的一側面)。自設置於腔室單元100一側上部的溫度測定單元300出射的測定光束DL可透射蓋板110的第二窗122而照射至堆積於平台130上的加工對象物W的特定區域。藉此,溫度測定單元300可即時測定加工對象物W的特定區域的溫度。設置第二窗122的第二壁面110b可相對於設置第一窗121的第一壁面110a傾斜地形成。另一方面,透射第二窗122的測定光束DL可具有與透射第一窗121的雷射束L不同的波長,但並非必須限定於此。第二窗122可包括可使入射的測定光束DL的波長良好地透射的材質。The second window 122 is a portion where the measurement light beam DL for measuring the temperature is transmitted, and may be provided to the second wall surface 110b of the cap plate 110 (for example, one side surface of the cap plate 110). The measurement light beam DL emitted from the temperature measuring unit 300 provided on the upper portion of the chamber unit 100 can be transmitted through the second window 122 of the cover plate 110 to be irradiated to a specific region of the processing object W stacked on the stage 130. Thereby, the temperature measuring unit 300 can instantly measure the temperature of a specific region of the object W. The second wall surface 110b on which the second window 122 is disposed may be formed obliquely with respect to the first wall surface 110a on which the first window 121 is disposed. On the other hand, the measurement beam DL transmitted through the second window 122 may have a different wavelength from the laser beam L transmitted through the first window 121, but is not necessarily limited thereto. The second window 122 may include a material that can transmit the wavelength of the incident measuring beam DL well.
於底板105上,設置有堆積加工對象物W的平台130,上述平台130以可於底板105上移動的方式設置。另外,平台130能夠以相對於底板105傾斜的方式設置。另一方面,平台130亦可不以相對於底板105傾斜的方式設置。A platform 130 on which the object W is stacked is disposed on the bottom plate 105, and the stage 130 is provided to be movable on the bottom plate 105. In addition, the platform 130 can be disposed in a manner inclined with respect to the bottom plate 105. On the other hand, the platform 130 may not be disposed in a manner inclined with respect to the bottom plate 105.
於腔室單元100的下部,可更設置真空單元400。此種真空單元400發揮與腔室單元100連接而將腔室單元100的內部保持為真空的作用。另外,於真空單元400的上部,可更設置發揮顯示腔室單元100的內部壓力的作用的壓力顯示單元500。In the lower portion of the chamber unit 100, a vacuum unit 400 may be further provided. Such a vacuum unit 400 functions to connect to the chamber unit 100 to maintain the inside of the chamber unit 100 as a vacuum. Further, on the upper portion of the vacuum unit 400, a pressure display unit 500 that functions to display the internal pressure of the chamber unit 100 can be further provided.
如上所述,藉由在腔室單元100的蓋板110設置第一窗121及第二窗122,雷射束L可透射第一窗121而照射至加工對象物W的特定區域,藉此進行雷射加工作業,測定光束DL透射第二窗122而測定加工對象物W的特定區域的溫度。因此,於進行雷射加工作業的期間,亦可即時測定監控加工對象物W的特定區域(例如,雷射照射區域或其周圍區域等)的溫度。並且,可使用具有與雷射束L不同的波長的各種波長的光作為測定光束DL。As described above, by providing the first window 121 and the second window 122 in the cover 110 of the chamber unit 100, the laser beam L can be transmitted through the first window 121 to a specific region of the object W, thereby performing In the laser processing operation, the measurement light beam DL is transmitted through the second window 122 to measure the temperature of a specific region of the object W. Therefore, during the laser processing operation, the temperature of a specific region (for example, a laser irradiation region or a surrounding region thereof) for monitoring the object W can be measured in real time. Further, light of various wavelengths having a wavelength different from that of the laser beam L can be used as the measurement beam DL.
以上所說明的本發明的實施例的腔室單元100可活用於利用雷射加工的各種領域。作為一例,腔室單元100可使用於雷射退火(laser annealing)、去除光罩的接著劑(glue)及利用雷射的蝕刻等中。並且,亦可有效地用於測定與利用雷射的加工對象物的吸收率對應的溫度特性變化或相變(phase transition)等。The chamber unit 100 of the embodiment of the present invention described above can be utilized in various fields of processing using lasers. As an example, the chamber unit 100 can be used in laser annealing, a glue for removing a photomask, etching by a laser, or the like. Further, it can be effectively used to measure a temperature characteristic change, a phase transition, or the like corresponding to the absorption rate of the object to be processed by the laser.
以上,對本發明的實施例進行了說明,但上述實施例僅為示例,於本技術領域內具有常識者應理解,可根據上述實施例實現各種變形及其他等同的實施例。The embodiments of the present invention have been described above, but the above-described embodiments are merely examples, and those skilled in the art should understand that various modifications and other equivalent embodiments can be implemented in accordance with the embodiments described above.
100、100'‧‧‧腔室單元
105‧‧‧底板
110‧‧‧蓋板
110a‧‧‧第一壁面
110b‧‧‧第二壁面
121‧‧‧第一窗
122‧‧‧第二窗
130‧‧‧平台
135‧‧‧銷(pin)
137‧‧‧導引構件
200‧‧‧雷射照射單元
300‧‧‧溫度測定單元
400‧‧‧真空單元
500‧‧‧壓力顯示單元
1000‧‧‧雷射加工系統
DL‧‧‧測定光束
L‧‧‧雷射束
RL‧‧‧反射的雷射束
W‧‧‧加工對象物
θ1‧‧‧第一角度
θ2‧‧‧第二角度100, 100'‧‧‧ chamber unit
105‧‧‧floor
110‧‧‧ cover
110a‧‧‧First wall
110b‧‧‧second wall
121‧‧‧First window
122‧‧‧ second window
130‧‧‧ platform
135‧‧ ‧ pin
137‧‧‧Guide members
200‧‧‧Laser illumination unit
300‧‧‧ Temperature measuring unit
400‧‧‧vacuum unit
500‧‧‧ Pressure display unit
1000‧‧‧Laser processing system
DL‧‧‧Measurement beam
L‧‧‧Laser beam
RL‧‧‧reflected laser beam
W‧‧‧Processing object θ 1 ‧‧‧First angle θ 2 ‧‧‧Second angle
圖1是本發明的例示性的實施例的腔室單元的立體圖。 圖2是圖1所示的腔室單元的側視圖。 圖3是表示圖1所示的腔室單元的內部剖面的圖,且是表示平台相對於底板傾斜第一角度θ1 的狀態的圖。 圖4是表示圖1所示的腔室單元的內部剖面的圖,且是表示平台相對於底板傾斜第二角度θ2 的狀態的圖。 圖5是本發明的另一例示性的實施例的腔室單元的內部剖面圖。 圖6是概略性地表示本發明又一實施例的雷射加工系統的立體圖。1 is a perspective view of a chamber unit of an exemplary embodiment of the present invention. Figure 2 is a side elevational view of the chamber unit shown in Figure 1. FIG. 3 shows an internal cross-section of the chamber unit shown in FIG. 1, and showing the platform relative to the floor is inclined at a first angle θ 1 of the state of FIG. 4 is a view showing an internal cross section of the chamber unit shown in FIG. 1, and is a view showing a state in which the stage is inclined by a second angle θ 2 with respect to the bottom plate. Figure 5 is an internal cross-sectional view of a chamber unit of another exemplary embodiment of the present invention. Fig. 6 is a perspective view schematically showing a laser processing system according to still another embodiment of the present invention.
100‧‧‧腔室單元 100‧‧‧Cell unit
110‧‧‧蓋板 110‧‧‧ cover
110a‧‧‧第一壁面 110a‧‧‧First wall
110b‧‧‧第二壁面 110b‧‧‧second wall
121‧‧‧第一窗 121‧‧‧First window
122‧‧‧第二窗 122‧‧‧ second window
Claims (19)
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