WO2016125219A1 - 反射防止膜、光学部材、光学機器及び反射防止膜の製造方法 - Google Patents
反射防止膜、光学部材、光学機器及び反射防止膜の製造方法 Download PDFInfo
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- WO2016125219A1 WO2016125219A1 PCT/JP2015/006272 JP2015006272W WO2016125219A1 WO 2016125219 A1 WO2016125219 A1 WO 2016125219A1 JP 2015006272 W JP2015006272 W JP 2015006272W WO 2016125219 A1 WO2016125219 A1 WO 2016125219A1
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- antireflection film
- etching
- material layer
- inorganic material
- transparent
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/36—Imagewise removal not covered by groups G03F7/30 - G03F7/34, e.g. using gas streams, using plasma
Definitions
- the present technology relates to an antireflection film that can be used for an optical member, an optical member and an optical device including the antireflection film, and a method for manufacturing the antireflection film.
- non-destructive living body observation techniques using laser light such as a living body visualization technique have attracted attention.
- An optical system used in this technique is required to have low reflection characteristics in a wide wavelength band including a light source (near infrared region) and fluorescence (visible light region) generated from a living body.
- a conventional AR (Anti Reflection) coating is difficult to satisfy desired characteristics, and a technique capable of realizing low reflection in a wide wavelength band is required. Therefore, an antireflection film using a nanostructure (Mosseye (registered trademark) structure) in which irregularities are formed at a fine pitch equal to or less than the wavelength order of light has attracted attention.
- a nanostructure Microstructure (registered trademark) structure) in which irregularities are formed at a fine pitch equal to or less than the wavelength order of light
- This anti-reflection film is characterized by suppressing the reflection phenomenon itself using a step change in the average refractive index rather than canceling out by interference, and in principle it can reduce the wavelength and angle dependence of incident light. It is expected that low reflection can be maintained in a wide wavelength band including the near infrared region.
- Non-Patent Document 1 discloses a method of forming nanostructures using the Blu-ray Disc technology. In this method, it is possible to create a nanostructure with an inexpensive device, and the cost and tact can be suppressed by applying the nanoimprint technology. Patent Document 1 proposes a method of forming a porous alumina layer in which fine concave portions are uniformly distributed on the surface of an aluminum substrate by using anodization.
- the aspect ratio is about 1.5 at the maximum, and it is difficult to realize low reflection with respect to light in a wide wavelength band.
- the aspect ratio of the mold can be easily increased, the practical aspect ratio is limited to about 1.5 as in Non-Patent Document 1.
- these methods are based on nanoimprinting using a curable resin, they can be applied to optical components that require heat resistance and light resistance (for example, optical components for lasers) due to problems such as yellowing due to absorption of the resin itself. Not suitable for application.
- an object of the present technology is to provide an antireflection film, an optical member, an optical device, and a method for manufacturing the antireflection film that have high light resistance and maintain low reflection in a wide wavelength band. For the purpose.
- an antireflection film has a fine concavo-convex structure composed of a convex portion and a concave portion made of a transparent inorganic material in the visible light region and having a width equal to or smaller than the visible light wavelength.
- the concave portion has an aspect ratio of 1.5 or more.
- the fine concavo-convex structure of the antireflection film is made of an inorganic material and can have high light resistance. Moreover, since the aspect ratio of the recess is 1.5 or more, low reflection can be maintained in a wide wavelength band. Therefore, the present technology can provide an antireflection film having high light resistance and maintaining low reflection in a wide wavelength band. If the aspect ratio of the recesses is 4 or more, it is desirable that the wavelength range of low reflection can be further widened.
- the antireflection film may have a reflectance of less than 0.5% for visible light and near infrared rays.
- an antireflection film having a small reflectance with respect to visible light and near infrared light can be obtained.
- the concave portion may be a pore arranged through the convex portion, and the aspect ratio may be a depth ratio to an opening diameter of the pore.
- the transparent inorganic material may be selected from materials that can be dry-etched.
- a fine uneven structure can be formed by dry etching.
- the transparent inorganic material may be any material that can be dry-etched. Examples thereof include SiO 2 , HfO 2 , Al 2 O 3 , ITO, MgF 2 , TiO 2 , and CaF 2 .
- an optical member includes a base material and an antireflection film.
- the antireflection film is laminated on the base material, is made of a transparent inorganic material in the visible light region, has a fine concavo-convex structure including a convex portion and a concave portion whose width is equal to or less than a visible light wavelength, The aspect ratio is 1.5 or more.
- an optical apparatus includes a laser light source and an optical member.
- the optical member is an optical member disposed in the optical system of the laser light source, and is made of a base material and an inorganic material laminated on the base material and transparent in the visible light region, and having a width of not more than a visible light wavelength.
- a method for manufacturing an antireflection film includes: On the base material, a transparent material layer made of an inorganic material transparent in the visible light region is laminated, A metal material layer made of a metal material is laminated on the transparent material layer, On the metal material layer, an inorganic material layer made of an incomplete oxide of a transition metal is laminated, The inorganic material layer is irradiated with laser to partially process the inorganic material, A first etching mask is formed by removing the processed portion by developing the inorganic material layer, Etching the metal material layer using the first etching mask to form a second etching mask, The transparent material layer is etched using the second etching mask to form a fine relief structure.
- the transparent material layer can be deeply etched, and a fine concavo-convex structure with a high aspect ratio can be formed. . Thereby, an antireflection film having a small reflectance with respect to visible light and near-infrared light can be manufactured.
- etching is performed under an etching condition in which an etching selectivity of the metal material layer with respect to the first etching mask is 0.3 or more. Also good.
- the etching selectivity with respect to the metal material layer can be ensured.
- the etching selectivity with respect to the metal material layer is improved, and the metal material layer can be etched deeper.
- the metal material in the step of forming the second etching mask, may be selected so that the atomic weight is smaller than that of the inorganic material, and physical etching may be performed.
- the sputtering rate due to ion bombardment of the metal material layer exceeds the rate due to the inorganic material layer, and the etching selectivity to the metal material layer is ensured. can do.
- the etching in the step of forming the fine concavo-convex structure, may be performed under an etching condition in which an etching selectivity of the transparent material layer with respect to the second etching mask is 15 or more.
- the etching selectivity with respect to the transparent material layer is improved, and the transparent material layer can be etched deeper. Therefore, a fine concavo-convex structure with a high aspect ratio can be formed.
- physical etching may be performed in the step of forming the second etching mask, and chemical etching may be performed in the step of forming the fine concavo-convex structure.
- the difference between the etching rate of the metal material layer and the transparent material layer is selected.
- the ratio can be increased.
- reactive ion etching may be performed in the step of forming the second etching mask.
- the inorganic material may be a transition metal heat sensitive resist made of an incomplete oxide of a transition metal.
- an antireflection film, an optical member, an optical device, and an antireflection film manufacturing method that have high light resistance and maintain low reflection in a wide wavelength band.
- FIG. 1 is a cross-sectional view of an antireflection structure according to an embodiment of the present technology. It is a top view of the same antireflection structure. It is a schematic diagram which shows the variation of the structure in the reflection preventing structure. It is an enlarged view of the same antireflection structure. It is a mimetic diagram showing a manufacturing process of an antireflection film concerning an embodiment of this art. It is a schematic diagram which shows the manufacturing process of the antireflection film. It is a schematic diagram which shows the manufacturing process of the antireflection film. It is a schematic diagram of the laser exposure machine which concerns on embodiment of this technique. It is a schematic diagram of the to-be-processed body which concerns on the Example of this technique. It is the image which imaged the antireflection structure concerning the example of this art with the scanning electron microscope (SEM). It is a figure which shows the reflectance characteristic of the anti-reflective film which concerns on embodiment of this technique.
- SEM scanning electron microscope
- FIG. 1 and 2 are schematic views of an antireflection structure 10 according to an embodiment of the present technology.
- FIG. 1 is a cross-sectional view
- FIG. 2 is a plan view.
- the X direction, the Y direction, and the Z direction are three directions orthogonal to each other.
- the antireflection structure 10 includes a base material 20 and an antireflection film 30 as shown in FIG.
- the base material 20 supports the antireflection film 30.
- the base material 20 can be made into flat form as shown in FIG.1 and FIG.2, a film form or a roll form may be sufficient.
- the surface shape of the substrate 20 is not limited to a flat surface, and may be a spherical shape, a free curved surface, or the like.
- the base material 20 can be made of a light transmissive material, for example, a transparent material such as bulk synthetic quartz, SiO 2 or a crystalline material. Moreover, the base material 20 does not necessarily need to consist of a material which has a light transmittance.
- the substrate 20 may be an optical member, and may be, for example, a lens, a half mirror, a prism, a light guide, a film, a diffraction grating, or the like.
- the antireflection film 30 is disposed on the substrate 20 and has a concave portion 31 and a convex portion 32.
- the concave portions 31 are pores arranged via the convex portions 32, and a plurality of the antireflection films 30 are provided. Thereby, a fine concavo-convex structure as shown in FIG. 1 is formed.
- the recess 31 is formed from the surface 30a to the back surface.
- the antireflection film 30 is formed such that the thickness direction (Z direction) is the depth direction toward 30b.
- the recess 31 can have a circular opening and have a shape in which the diameter gradually decreases as the depth increases.
- the shape of the recessed part 31 is not restricted to what is shown in FIG.1 and FIG.2.
- the opening is not limited to a circle and may be a square, a polygon, or the like.
- the opening of the recess 31 can be arranged so as to be closest packed to the surface 30 a.
- the angle formed by the line connecting the centers of the recesses 31 adjacent to each other can be 60 °.
- the interval between the recesses 31 is set such that L1 is the interval between the centers of the recesses 31 adjacent to each other, and L2 is the interval in the Y direction. be able to.
- FIG. 3 is a diagram showing a variation of the arrangement of the openings of the recesses 31.
- the arrangement of the openings of the recesses 31 can be arranged in a matrix as shown in FIG. 3, for example.
- the convex part 32 shall be located between the adjacent recessed parts 31, as shown in FIG.1 and FIG.2.
- the shape of the convex portion 32 is not limited, and can be a shape corresponding to the shape of the concave portion 31.
- FIG. 4 is an enlarged view of the antireflection structure 10.
- L3 and L4 have a length equal to or shorter than the wavelength of visible light.
- the aspect ratio of the recess 31 is a ratio of L5 to L3.
- the aspect ratio of the recess 31 of the present embodiment is 1.5 or more, and preferably 4 or more.
- the antireflection film 30 is made of a material that is transparent in the visible light region.
- the material of the antireflection film 30 is preferably a material having high light resistance to laser light.
- SiO 2 , HfO 2 , Al 2 O 3 , ITO, MgF 2 , TiO 2 , CaF 2 , Na 2 O—B 2 O 3 —SiO 2 or the like can be used.
- FIG. 1 A method for manufacturing the antireflection film 30 according to this embodiment will be described.
- the manufacturing method shown below is an example, and the antireflection film 30 can be manufactured by a method different from the method shown below.
- 5 to 7 are schematic views showing a manufacturing process of the antireflection film 30. FIG.
- FIG. 5A shows the base material 20 of the antireflection structure 10.
- a transparent material layer 40 made of the material for the antireflection film 30 is laminated on the base material 20.
- a method for laminating the transparent material layer 40 a sputtering method, a pulsed laser deposition (PLD) method, a vapor phase method such as an electron beam evaporation method, or the like is preferably used, but is not limited to these methods.
- the film thickness of the transparent material layer 40 can be about several micrometers.
- a metal material layer 50 is laminated on the transparent material layer 40 laminated on the base material 20.
- a method for laminating the metal material layer 50 a sputtering method, a pulsed laser deposition (PLD) method, a vapor phase method such as an electron beam evaporation method, or the like is preferably used, but is not limited to these methods.
- the film thickness of the metal material layer 50 can be about several tens of nm.
- the material of the metal material layer 50 is made of, for example, a pure metal such as Cu, Ni, Cr, Ag, Pd, Fe, Sn, Pb, Pt, Ir, Rh, Ru, Al, or Ti, or an alloy thereof. There is no particular limitation.
- an inorganic material layer 60 is laminated on the metal material layer 50.
- a method for laminating the inorganic material layer 60 a sputtering method, a pulsed laser deposition (PLD) method, a vapor phase method such as an electron beam evaporation method, or the like is preferably used, but is not limited to these methods.
- the film thickness of the inorganic material layer 60 can be about several tens of nm.
- a laminate in which the transparent material layer 40, the metal material layer 50, and the inorganic material layer 60 are laminated on the base material 20 is referred to as a workpiece 70.
- the inorganic material layer 60 can be made of an inorganic material made of an incomplete oxide of a transition metal.
- the inorganic material include a transition metal-based heat sensitive resist. Further, Ti, V, Cr, Mn, Fe, Nb, Cu, Ni, Co, Mo, Ta, W, Zr, Ru, Ag, or the like can be used as the transition metal.
- the inorganic material is not particularly limited as long as it is a material that is sensitized by a thermal reaction accompanying laser light irradiation, that is, a material that enables so-called thermal recording.
- the inorganic material layer 60 is irradiated with laser light R. At this time, only the portion of the inorganic material layer 60 that is heated by the laser beam R and exceeds the thermal reaction threshold is soluble in the alkali developer.
- the alkali-soluble part of the inorganic material layer 60 is shown as the processed part S. A laser exposure machine that can be used for irradiation with the laser beam R will be described later.
- the workpiece 70 that has been exposed is developed with an alkaline developer.
- an alkaline developer As a result, only the processed portion S is dissolved in the alkaline developer, and a plurality of recesses are formed in the inorganic material layer 60 as shown in FIG.
- the inorganic material layer in which a plurality of recesses are formed is referred to as a first etching mask 61.
- the metal material layer 50 is etched using the first etching mask 61.
- a plurality of recesses are formed in the metal material layer 50.
- the selection ratio of the metal material layer 50 to the first etching mask 61 is desirably 0.3 or more, more preferably 0.5 or more. Thereby, the etching selectivity with respect to the metal material layer 50 can be ensured.
- the etching process of the metal material layer 50 can be performed by physical etching or chemical etching, which will be described later in detail.
- the metal material layer in which the plurality of recesses are formed is used as the second etching mask 51.
- the transparent material layer 40 is etched using the second etching mask 51.
- the selection ratio of the transparent material layer 40 to the second etching mask 51 is preferably 15 or more.
- the etching process of the transparent material layer 40 can be chemical etching, which will be described later in detail.
- the transparent material layer in which a plurality of concave portions are formed as shown in FIG. 7B corresponds to the antireflection film 30.
- the antireflection film 30 can be manufactured as described above.
- the second etching mask 51 is formed by chemical etching or physical etching.
- chemical etching RIE (Reactive Ion Etching) using a gas species that easily reacts with the metal material layer 50 and does not easily react with the first etching mask 61 can be used.
- RIE Reactive Ion Etching
- the metal material layer 50 is made of Al and the first etching mask 61 is made of a W material (incomplete oxide of W)
- it can be performed by using chlorine gas (Cl 2 ) as a gas species. .
- Cl 2 chlorine gas
- Chemical etching is not limited to the above-described RIE, and may be dry etching methods such as reactive gas etching, reactive ion beam etching, and reactive laser beam etching.
- an inert gas can be used when the atomic weight of the metal material layer 50 is smaller than the atomic weight of the inorganic material layer 60.
- the metal material layer 50 is etched using the first etching mask 61 formed from the inorganic material layer 60, the sputtering rate due to the ion bombardment of the metal material layer 50 is the rate by the inorganic material layer 60.
- the etching selectivity with respect to the metal material layer 50 can be ensured.
- the physical etching can be, for example, an ion milling method using Ar gas as an inert gas. Thereby, the selection ratio of the metal material layer 50 to the first etching mask 61 can be set to 0.3 or more.
- the physical etching described above is not limited to the ion milling method.
- Etching of the transparent material layer 40 can be performed by chemical etching that reacts with the transparent material layer 40 and hardly reacts with the second etching mask 51. Specifically, RIE using a fluorine-based gas such as CF 4 , C 4 F 8 , or CHF 3 as an etching gas can be used. Thereby, the selectivity of the transparent material layer 40 with respect to the second etching mask 51 can be improved.
- the etching process of the transparent material layer 40 can be performed by using CHF 3 as a gas species.
- the selection ratio of the transparent material layer 40 to the mask 51 can be 30 or more. Thereby, since the transparent material layer 40 can be etched deeper, the aspect ratio of the recess 31 can be increased.
- the transparent material layer 40 is made of SiO 2, it is possible to provide the antireflection film 30 having excellent light resistance and low reflectance.
- the difference in etching rate between the metal material layer 50 and the transparent material layer 40 is used to increase the selection ratio. be able to.
- FIG. 8 is a schematic diagram of a laser exposure machine 80 according to the present embodiment.
- the workpiece 70 of this embodiment is processed by, for example, a laser exposure machine 80 shown in FIG.
- the laser exposure machine 80 includes a laser exposure unit D1, a signal generation unit D2, a control unit D3, a slide unit D4, and a rotation unit D5.
- the laser exposure unit D1 receives the signal supplied from the signal generation unit D2 and generates a laser.
- the signal generation unit D2 receives information about the slide unit D4 and the rotation unit D5 supplied from the control unit D3, generates a signal at a predetermined timing, and supplies the signal to the laser exposure unit D1.
- the control unit D3 controls driving of the slide unit D4 and the rotation unit D5, and supplies information about these drive states (slide position, rotation angle, etc.) to the signal generation unit D2.
- the slide part D4 slides the rotating part D5 under the control of the rotating part D5 by the control part D3.
- the rotating part D5 supports the workpiece 70 and rotates under the control of the control part D3.
- the laser exposure machine 80 processes the workpiece 70 by a PTM (Phase Transition Mastering) method. Specifically, the laser exposure machine 80 condenses the collimated light source via the objective lens, fixes the focal position on the surface or inside of the exposure target, and performs exposure while rotating or sliding the target.
- PTM Phase Transition Mastering
- the laser exposure machine 80 of this embodiment is not limited to the structure shown in FIG.
- the feed pitch in the radial direction corresponds to the interval L2 in the Y direction at the center of the recess 31, and the feed pitch in the rotation direction is X at the center of the recess 31. This corresponds to the direction interval L1 (see FIG. 2).
- the antireflection structure 10 of this embodiment can be mounted on various optical devices such as a microscope, a camera, and a telescope.
- the antireflection structure 10 since the antireflection structure 10 has high resistance to laser light, the antireflection structure 10 can be suitably used for an optical apparatus including a laser light source.
- the optical device on which the antireflection structure 10 can be mounted is not limited to the above.
- the antireflection film 30 of the present embodiment can have an adhesion layer between the substrate 20 and the transparent material layer 40 when the substrate 20 has low adhesion to the transparent material layer 40.
- the thickness of the adhesion layer is preferably 100 nm or less.
- the material of the adhesion layer include Al 2 O 3 , Y 2 O 3 , Ti 2 O 3 , TiO, and TiO 2 .
- the antireflection film 30 is configured to have a convex portion between a plurality of individually independent concave portions, but is not limited to this, and has a configuration having a concave portion between a plurality of independent convex portions. May be.
- the antireflection structure described in the above embodiment was produced and evaluated.
- a transparent material layer having a thickness of 1.5 ⁇ m was laminated on a base material by electron beam evaporation (see FIG. 5B).
- a metal material layer made of Ni and having a thickness of 30 nm was laminated on the transparent material layer by sputtering (see FIG. 5C).
- an inorganic material layer made of W material (incomplete oxide of W) and having a thickness of 90 nm was laminated on the metal material layer by sputtering to obtain a workpiece (see FIG. 6A). ).
- the workpiece was exposed as follows using the laser exposure machine described in the above embodiment.
- FIG. 9 is a schematic view of the workpiece viewed from the thickness direction (see FIG. 6B).
- FIG. 9 shows a processed portion S in which the inorganic material layer is processed by the exposure process. Further, the distance L6 shown in the figure is the diameter of the processed portion S and corresponds to the width L3 of the opening of the recess described in the above embodiment (see FIG. 4).
- the inorganic material layer which comprises a to-be-processed body was exposed so that the process part S might be the closest packing.
- the distance L6 was set to 200 nm.
- L7 is 231 nm and L8 is 200 nm. Exposed.
- the exposed workpiece was developed with an alkaline developer as described in the above embodiment to form a first etching mask.
- the metal material layer is etched using the first etching mask to form a second etching mask, and the transparent material layer is etched using the second etching mask to prevent reflection. Got the body.
- the antireflection structure produced as described above was imaged with a scanning electron microscope (SEM).
- SEM scanning electron microscope
- the depth of the recess according to the present embodiment was 900 nm, and the aspect ratio (900 nm / L6) of the recess was 4.5.
- FIG. 11 is a diagram showing the reflectance of the antireflection film.
- the antireflection film provided in the antireflection structure had a reflectance of less than 0.5% for light having a wavelength of 400 nm to 1300 nm. From this result, it was confirmed that the antireflection film 30 of the present technology can realize low reflection with respect to light in a wide wavelength band including the visible light region to the near infrared region.
- An antireflection film having a fine concavo-convex structure composed of a convex portion and a concave portion made of a transparent inorganic material in a visible light region and having a width of a visible light wavelength or less, and an aspect ratio of the concave portion being 1.5 or more.
- the concave portion is a pore arranged through the convex portion,
- the aspect ratio is a ratio of a depth to an opening diameter of the pores.
- the antireflection film according to any one of (1) to (3) above is selected from materials that can be dry etched.
- the antireflection film according to any one of (1) to (4) above, The transparent inorganic material is an antireflection film selected from SiO 2 , HfO 2 , Al 2 O 3 , ITO, MgF 2 , TiO 2 and CaF 2 .
- a substrate It has a fine concavo-convex structure that is laminated on the base material, is made of a transparent inorganic material in the visible light region, and has a width and a width equal to or smaller than the visible light wavelength, and has an aspect ratio of 1.5
- An optical member comprising the antireflection film as described above.
- a laser light source comprising a base material, and a convex part and a concave part that are laminated on the base material and are made of an inorganic material that is transparent in the visible light region and whose width is equal to or smaller than the visible light wavelength.
- a transparent material layer made of an inorganic material transparent in the visible light region is laminated, A metal material layer made of a metal material is laminated on the transparent material layer, On the metal material layer, an inorganic material layer made of an incomplete oxide of a transition metal is laminated, The inorganic material layer is irradiated with a laser to partially process the inorganic material, A first etching mask is formed by removing the processed portion by developing the inorganic material layer, Etching the metal material layer using the first etching mask to form a second etching mask, A method of manufacturing an antireflection film, wherein the transparent material layer is etched using the second etching mask to form a fine relief structure.
- the etching selectivity of the metal material layer with respect to the first etching mask is 0.3 or more.
- the inorganic material is a transition metal-based heat-sensitive resist made of an incomplete oxide of a transition metal.
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Abstract
Description
上記反射防止膜は、上記基材に積層され、可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、上記凹部のアスペクト比が1.5以上である。
上記光学部材は、上記レーザー光源の光学系に配置された光学部材であって、基材と、上記基材に積層し、可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、上記凹部のアスペクト比が1.5以上である反射防止膜とを備える。
基材上に、可視光領域で透明な無機材料からなる透明材料層を積層し、
上記透明材料層上に、金属材料からなる金属材料層を積層し、
上記金属材料層上に、遷移金属の不完全酸化物からなる無機材料層を積層し、
上記無機材料層にレーザーを照射して前記無機材料を部分的に加工し、
上記無機材料層を現像して加工した部分を除去することで第1のエッチングマスクを形成し、
上記第1のエッチングマスクを用いて前記金属材料層にエッチングを施して第2のエッチングマスクを形成し、
上記第2のエッチングマスクを用いて前記透明材料層にエッチングを施して微細凹凸構造を形成する。
図1及び図2は、本技術の実施形態に係る反射防止構造体10の模式図であり、図1は断面図、図2は平面図である。以下の図においてX方向、Y方向及びZ方向は相互に直交する3方向である。
本実施形態に係る反射防止膜30の製造方法について説明する。なお、以下に示す製造方法は一例であり、反射防止膜30は、以下に示す方法とは異なる方法によって製造することも可能である。図5~図7は、反射防止膜30の製造プロセスを示す模式図である。
第2のエッチングマスク51は、化学的エッチング又は物理的エッチングにより形成される。化学的エッチングの場合は、金属材料層50と反応しやすく、第1のエッチングマスク61とは反応しづらいガス種を用いたRIE(Reactive Ion Etching)とすることができる。例えば、金属材料層50をAl、第1のエッチングマスク61をW材料(Wの不完全酸化物)からなるものとした場合、ガス種に塩素ガス(Cl2)を用いることによって行うことができる。これにより、金属材料層50に対するエッチング選択比が向上するので、より深く金属材料層50をエッチングすることができる。
透明材料層40のエッチング加工は、透明材料層40と反応し、第2のエッチングマスク51とは反応しづらい化学的エッチングによって行うことができる。具体的には、エッチングガスにCF4、C4F8、CHF3等のフッ素系のガスを用いたRIEとすることができる。これにより、第2のエッチングマスク51に対する透明材料層40の選択比を向上させることができる。
図8は、本実施形態に係るレーザー露光機80の模式図である。本実施形態の被加工体70は、例えば、図8に示すレーザー露光機80によって加工される。同図に示すように、レーザー露光機80は、レーザー露光部D1、信号発生部D2、制御部D3、スライド部D4及び回転部D5を備える。
本実施形態の反射防止構造体10は、顕微鏡、カメラ、望遠鏡等の各種光学機器に搭載することができる。特に、反射防止構造体10は、レーザー光に対する耐性が高いため、レーザー光源を備えた光学機器に好適に利用することができる。なお、反射防止構造体10が搭載可能な光学機器は、上記のものに限定されるものではない。
本実施形態の反射防止膜30は、基材20が透明材料層40との密着性が低い場合は、基材20と透明材料層40との間に密着層を有することもできる。この場合、密着層の厚みは100nm以下が好適である。密着層の材質としては、例えば、Al2O3、Y2O3、Ti2O3、TiO又はTiO2等がある。また、反射防止膜30は、個々に独立した複数の凹部の間に凸部を有する構成であるが、これに限定されず、個々に独立した複数の凸部の間に凹部を有する構成であってもよい。
本技術の技術的思想に基づいて種々の変更が可能である。
可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、上記凹部のアスペクト比が1.5以上である
反射防止膜。
上記(1)に記載の反射防止膜であって、
可視光及び近赤外線に対する反射率が0.5%未満である
反射防止膜。
上記(1)又は(2)に記載の反射防止膜であって、
上記凹部は、上記凸部を介して配列する細孔であり、
上記アスペクト比は、上記細孔の開口径に対する深さの比である
反射防止膜。
上記(1)から(3)のうちいずれか一つに記載の反射防止膜であって、
上記透明な無機材料は、ドライエッチング可能な材料から選択される
反射防止膜。
上記(1)から(4)のうちいずれか一つに記載の反射防止膜であって、
上記透明な無機材料はSiO2、HfO2、Al2O3、ITO、MgF2、TiO2及びCaF2の中から選択される
反射防止膜。
基材と、
上記基材に積層され、可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、上記凹部のアスペクト比が1.5以上である反射防止膜と
を具備する光学部材。
レーザー光源と、
上記レーザー光源の光学系に配置された光学部材であって、基材と、上記基材に積層され、可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、上記凹部のアスペクト比が1.5以上である反射防止膜とを備える光学部材と
を具備する光学機器。
基材上に、可視光領域で透明な無機材料からなる透明材料層を積層し、
上記透明材料層上に、金属材料からなる金属材料層を積層し、
上記金属材料層上に、遷移金属の不完全酸化物からなる無機材料層を積層し、
上記無機材料層にレーザーを照射して上記無機材料を部分的に加工し、
上記無機材料層を現像して加工した部分を除去することで第1のエッチングマスクを形成し、
上記第1のエッチングマスクを用いて上記金属材料層にエッチングを施して第2のエッチングマスクを形成し、
上記第2のエッチングマスクを用いて上記透明材料層にエッチングを施して微細凹凸構造を形成する
反射防止膜の製造方法。
上記(8)に記載の反射防止膜の製造方法であって
上記第2のエッチングマスクを形成する工程では、上記第1のエッチングマスクに対する上記金属材料層のエッチング選択比が0.3以上となるエッチング条件でエッチングを行う
反射防止膜の製造方法。
上記(8)又は(9)に記載の反射防止膜の製造方法であって、
上記第2のエッチングマスクを形成する工程では、上記金属材料に選択的に反応するエッチングガスを用いる化学的エッチングを行う
反射防止膜の製造方法。
上記(8)から(10)のうちいずれか一つに記載の反射防止膜の製造方法であって、
上記第2のエッチングマスクを形成する工程では、上記無機材料より原子量が小さくなるよう上記金属材料を選び、物理的エッチングを行う
反射防止膜の製造方法
上記(8)から(11)のうちいずれか一つに記載の反射防止膜の製造方法であって、
上記微細凹凸構造を形成する工程では、上記第2のエッチングマスクに対する上記透明材料層のエッチング選択比が15以上となるエッチング条件でエッチングを行う
反射防止膜の製造方法。
上記(8)から(12)のうちいずれか一つに記載の反射防止膜の製造方法であって、
上記第2のエッチングマスクを形成する工程では、物理的エッチングを行い、
上記微細凹凸構造を形成する工程では、化学的エッチングを行う
反射防止膜の製造方法。
上記(8)から(13)のうちいずれか一つに記載の反射防止膜の製造方法であって、
上記第2のエッチングマスクを形成する工程では、リアクティブイオンエッチングを行う
反射防止膜の製造方法。
上記(8)から(14)のうちいずれか一つに記載の反射防止膜の製造方法であって、
上記無機材料は、遷移金属の不完全酸化物からなる遷移金属系熱感応性レジストである
反射防止膜の製造方法。
20・・・基材
30・・・反射防止膜
31・・・凹部
32・・・凸部
40・・・透明材料層
50・・・金属材料層
51・・・第2のエッチングマスク
60・・・無機材料層
61・・・第1のエッチングマスク
Claims (15)
- 可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、前記凹部のアスペクト比が1.5以上である
反射防止膜。 - 請求項1に記載の反射防止膜であって、
可視光及び近赤外線に対する反射率が0.5%未満である
反射防止膜。 - 請求項1に記載の反射防止膜であって、
前記凹部は、前記凸部を介して配列する細孔であり、
前記アスペクト比は、前記細孔の開口径に対する深さの比である
反射防止膜。 - 請求項1に記載の反射防止膜であって、
前記透明な無機材料は、ドライエッチング可能な材料から選択される
反射防止膜。 - 請求項1に記載の反射防止膜であって、
前記透明な無機材料は、SiO2、HfO2、Al2O3、ITO、MgF2、TiO2及びCaF2の中から選択される
反射防止膜。 - 基材と、
前記基材に積層され、可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、前記凹部のアスペクト比が1.5以上である反射防止膜と
を具備する光学部材。 - レーザー光源と、
前記レーザー光源の光学系に配置された光学部材であって、基材と、前記基材に積層され、可視光領域で透明な無機材料からなり、幅が可視光波長以下である凸部と凹部によって構成された微細凹凸構造を有し、前記凹部のアスペクト比が1.5以上である反射防止膜とを備える光学部材と
を具備する光学機器。 - 基材上に、可視光領域で透明な無機材料からなる透明材料層を積層し、
前記透明材料層上に、金属材料からなる金属材料層を積層し、
前記金属材料層上に、遷移金属の不完全酸化物からなる無機材料層を積層し、
前記無機材料層にレーザーを照射して前記無機材料を部分的に加工し、
前記無機材料層を現像して加工した部分を除去することで第1のエッチングマスクを形成し、
前記第1のエッチングマスクを用いて前記金属材料層にエッチングを施して第2のエッチングマスクを形成し、
前記第2のエッチングマスクを用いて前記透明材料層にエッチングを施して微細凹凸構造を形成する
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記第2のエッチングマスクを形成する工程では、前記第1のエッチングマスクに対する前記金属材料層のエッチング選択比が0.3以上となるエッチング条件でエッチングを行う
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記第2のエッチングマスクを形成する工程では、前記金属材料に選択的に反応するエッチングガスを用いる化学的エッチングを行う
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記第2のエッチングマスクを形成する工程では、前記無機材料より原子量が小さくなるよう前記金属材料を選び、物理的エッチングを行う
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記微細凹凸構造を形成する工程では、前記第2のエッチングマスクに対する前記透明材料層のエッチング選択比が15以上となるエッチング条件でエッチングを行う
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記第2のエッチングマスクを形成する工程では、物理的エッチングを行い、
前記微細凹凸構造を形成する工程では、化学的エッチングを行う
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記第2のエッチングマスクを形成する工程では、リアクティブイオンエッチングを行う
反射防止膜の製造方法。 - 請求項8に記載の反射防止膜の製造方法であって、
前記無機材料は、遷移金属の不完全酸化物からなる遷移金属系熱感応性レジストである
反射防止膜の製造方法。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018235707A1 (ja) * | 2017-06-21 | 2018-12-27 | ミツミ電機株式会社 | 撥水性反射防止構造体および撥水性反射防止構造体の製造方法 |
JP2020038311A (ja) * | 2018-09-05 | 2020-03-12 | ミツミ電機株式会社 | 撥水性反射防止構造体 |
JP2022515936A (ja) * | 2016-12-07 | 2022-02-24 | アメリカ合衆国 | 三次元的エッチングマスクを用いて形成される反射防止表面構造体 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107703573B (zh) * | 2017-10-20 | 2020-12-08 | 业成科技(成都)有限公司 | 高红外线穿透率结构 |
JP7226915B2 (ja) * | 2017-12-26 | 2023-02-21 | デクセリアルズ株式会社 | 凹凸構造体、光学部材及び電子機器 |
KR20200140965A (ko) | 2019-06-07 | 2020-12-17 | 삼성디스플레이 주식회사 | 표시 장치 |
JP7310360B2 (ja) * | 2019-06-27 | 2023-07-19 | コニカミノルタ株式会社 | 薄膜の製造方法 |
KR20210003993A (ko) | 2019-07-02 | 2021-01-13 | 삼성디스플레이 주식회사 | 색변환 기판 및 이를 포함하는 표시 장치 |
CN110275229A (zh) * | 2019-07-03 | 2019-09-24 | 上海理工大学 | 基于蛾眼的大视场角宽带偏振无关增透膜及其制备方法 |
KR20210130300A (ko) | 2020-04-21 | 2021-11-01 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 제조 방법 |
CN113219565B (zh) * | 2021-04-30 | 2022-03-18 | 中国建筑材料科学研究总院有限公司 | 一种消杂光窗口元件及其制备方法和应用 |
CN116705805A (zh) * | 2023-08-03 | 2023-09-05 | 太原国科半导体光电研究院有限公司 | 入射增强的超晶格红外探测器及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006133722A (ja) * | 2004-10-07 | 2006-05-25 | Canon Inc | 光学素子の製造方法 |
JP2008058438A (ja) * | 2006-08-30 | 2008-03-13 | Canon Electronics Inc | 光学フィルタ |
JP2010199115A (ja) * | 2009-02-23 | 2010-09-09 | Victor Co Of Japan Ltd | パターン形成方法 |
JP2012203018A (ja) * | 2011-03-23 | 2012-10-22 | Sony Corp | 光学素子、光学系、撮像装置、光学機器、および原盤 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003004916A (ja) * | 2001-06-20 | 2003-01-08 | Dainippon Printing Co Ltd | 表示装置の窓材、その製造方法、及び表示装置 |
EP1300433B1 (en) * | 2001-10-05 | 2008-10-15 | Shin-Etsu Chemical Co., Ltd. | Perfluoropolyether-modified silane, surface treating agent, and antireflection filter |
JP3828402B2 (ja) * | 2001-11-08 | 2006-10-04 | 株式会社日立製作所 | 背面照明装置およびこれを用いた液晶表示装置並びに液晶表示装置の照明方法 |
JP2007171673A (ja) * | 2005-12-22 | 2007-07-05 | Fujifilm Corp | 光記録媒体、並びに光記録装置、光記録方法及び光再生方法 |
JP4539759B2 (ja) * | 2007-10-01 | 2010-09-08 | オムロン株式会社 | 反射防止シート、表示素子及びディスプレイ装置 |
JP5895427B2 (ja) * | 2011-09-29 | 2016-03-30 | 凸版印刷株式会社 | 低反射構造を成型するための原版の製造方法 |
KR20140103264A (ko) * | 2011-12-08 | 2014-08-26 | 아사히 가라스 가부시키가이샤 | 적층체, 및 적층체의 제조 방법 |
WO2013103857A1 (en) * | 2012-01-04 | 2013-07-11 | Raydex Technology, Inc. | Method and structure of optical thin film using crystalled nano-porous material |
-
2015
- 2015-12-16 US US15/544,082 patent/US20180267210A1/en not_active Abandoned
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- 2015-12-16 WO PCT/JP2015/006272 patent/WO2016125219A1/ja active Application Filing
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006133722A (ja) * | 2004-10-07 | 2006-05-25 | Canon Inc | 光学素子の製造方法 |
JP2008058438A (ja) * | 2006-08-30 | 2008-03-13 | Canon Electronics Inc | 光学フィルタ |
JP2010199115A (ja) * | 2009-02-23 | 2010-09-09 | Victor Co Of Japan Ltd | パターン形成方法 |
JP2012203018A (ja) * | 2011-03-23 | 2012-10-22 | Sony Corp | 光学素子、光学系、撮像装置、光学機器、および原盤 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022515936A (ja) * | 2016-12-07 | 2022-02-24 | アメリカ合衆国 | 三次元的エッチングマスクを用いて形成される反射防止表面構造体 |
WO2018235707A1 (ja) * | 2017-06-21 | 2018-12-27 | ミツミ電機株式会社 | 撥水性反射防止構造体および撥水性反射防止構造体の製造方法 |
JP2020038311A (ja) * | 2018-09-05 | 2020-03-12 | ミツミ電機株式会社 | 撥水性反射防止構造体 |
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