WO2005093737A1 - パターン転写装置及びパターン転写方法 - Google Patents
パターン転写装置及びパターン転写方法 Download PDFInfo
- Publication number
- WO2005093737A1 WO2005093737A1 PCT/JP2005/005646 JP2005005646W WO2005093737A1 WO 2005093737 A1 WO2005093737 A1 WO 2005093737A1 JP 2005005646 W JP2005005646 W JP 2005005646W WO 2005093737 A1 WO2005093737 A1 WO 2005093737A1
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- WO
- WIPO (PCT)
- Prior art keywords
- transfer
- moving
- pattern
- substrate
- mold
- Prior art date
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
Definitions
- the present invention relates to a pattern transfer device and a pattern transfer method using the device, and more particularly to a pattern transfer device for transferring a fine uneven pattern and a pattern transfer method thereof.
- an imprint method for forming a concavo-convex pattern such as a pit and a guide groove using a transfer die is used. More specifically, a transfer die having a concave / convex shape corresponding to the convex portion on the surface of the concave / convex shape pattern to be formed on the surface of the resin replica included in the optical disk is produced.
- the transfer mold is pressed into a softened resin layer applied to a uniform thickness on glass or resin, and the uneven pattern on the surface of the transfer mold is transferred onto the resin layer. After the resin layer is cured, the resin replica is removed from the transfer mold, and a recording film, a reflection film, and the like are formed thereon by a sputtering method, and the optical disc is manufactured.
- Japanese Patent Application Laid-Open No. 2002-100038 discloses a jig that can move in a direction in which the transfer mold and the object to be transferred approach each other while maintaining a parallel relationship.
- the transfer mold and the object to be transferred (substrate) are fixed to the jig holding means while adjusting the parallel relationship with each other using a CCD camera, and the jig is moved to a hydraulic stamp table to load it. Add it. Since the relative parallel relationship between the transfer mold and the transfer object is regulated by the jig, the transfer mold approaches the transfer object while maintaining the mutual parallel relationship, and the transfer mold moves to the transfer object. It is pushed into. Disclosure of the invention
- a pattern transfer device is a pattern transfer device that transfers a transfer-type uneven pattern onto a surface of an object to be transferred, the base member fixing a substrate on which the object to be transferred is formed; A holding member that holds the transfer die so that the concave-convex pattern is opposed to the transfer object, the holding member being movable in a direction approaching the transfer object, and a holding member that holds the transfer member in a direction approaching the base member.
- Moving means including a moving member to be moved, a measuring assembly for measuring a distance between the transfer die and the object to be transferred, and outputting a measured value; and controlling a moving amount of the moving member according to the measured value. And control means.
- the pattern transfer device is a pattern transfer device that transfers an object to be transferred held on the surface of a transfer-type uneven pattern to an opposing substrate, the base member fixing the substrate, and the substrate
- a holding member that is movable in a direction approaching the substrate, and that holds the transfer die so as to face the substrate; and a moving unit that includes a moving member that moves the holding member in a direction approaching the base member.
- a measuring assembly that measures a distance between the transfer die and the substrate and outputs a measured value; and a control unit that controls a moving amount of the moving member according to the measured value.
- the pattern transfer method according to the present invention is a pattern transfer method for transferring a transfer-type concave / convex-shaped pattern onto a surface of an object to be transferred, wherein the substrate on which the object to be transferred is formed is used as a base member. Fixing, fixing the transfer die to a holding member such that the concave-convex pattern faces the transfer target, and measuring a distance between the transfer die and the transfer die to obtain a measurement value. A measuring step of outputting; a moving amount determining step of determining a moving amount of a moving member abutting on the holding member in accordance with the measured value; and a moving amount of the moving member by the moving amount to transfer the transfer mold to the transfer target. An approach step of approaching an object.
- the pattern transfer method according to the present invention is a pattern transfer method for transferring a transfer-type uneven pattern having an uneven pattern formed thereon to a surface of an opposed transfer object, wherein the transfer object is formed. Fixing the transferred substrate to a base member; fixing the transfer die to a holding member so that the concave-convex pattern faces the transfer target; and setting a distance between the transfer die and the transfer die.
- FIG. 1 is a diagram of a transfer device according to an embodiment of the present invention.
- FIG. 2 is a top view of the pattern transfer device according to the embodiment of the present invention.
- FIG. 3 is a diagram of a main part of the pattern transfer device according to the embodiment of the present invention.
- FIG. 4 is a diagram of a main part of the pattern transfer device according to the embodiment of the present invention.
- FIG. 5 is a diagram of a main part of a pattern transfer device according to a modification of the embodiment of the present invention.
- FIG. 6 is a top view of a pattern transfer device according to a modification of the embodiment of the present invention.
- FIG. 7 is a diagram of a main part of a pattern transfer device according to a modification of the embodiment of the present invention.
- FIG. 8 is a diagram of a main part of a pattern transfer device according to a modification of the embodiment of the present invention.
- FIG. 9 is a diagram of a main part of a pattern transfer device according to a modification of the embodiment of the present invention.
- FIG. 10 is a diagram of a main part of a pattern transfer apparatus according to a modification of the embodiment of the present invention.
- the transfer mold holding member 11 and the base member 13 are opposed to each other so as to be substantially parallel to each other.
- the transfer-type holding member 11 is supported by support means (not shown), and is vertically movable in a direction A that approaches or separates from the base member 13. 1 lb of the top surface of the transfer mold holding member 1 1
- the load applying member 15 is in contact, and transmits a force for vertically moving the transfer-type holding member 11.
- the end 15a of the load applying member 15 is formed to have a convex round shape so as to form a part of a sphere.
- the upper surface of the transfer-type holding member 11 has a concave shape that is at least a dog-like curvature, preferably a part of a sphere having the same curvature, than the curvature of the end portion 15a of the load applying member 15.
- a concave portion 1 1 ′ having a rounded shape is formed. That is, the end 15a of the load applying member 15 and the recess 11 'of the transfer-type holding member 11 are slidably contacted with each other, and the load applying member 15 is It is freely rotatable to 1.
- the contact area is increased so that the load of the load applying member 15 is transferred to the transfer mold holding member. This is for efficient communication.
- a concave portion 15 a ′ having a round shape so as to form a part of a sphere is formed at an end of the load applying member 15, and an upper surface of the transfer mold holding member 11 is formed. Even if a concave portion 1 1 ′ having a round shape that becomes a part of the sphere is formed in 11 b as well, the bearing ball 14 is stored between the concave portion 15 a ′ and the concave portion 11 ′. Good. Also in this case, as described above, the load applying member 15 is slidably and rotatably connected to the transfer type holding member 11.
- the transfer type holding member 11 and the load applying member 15 can be jointly connected without firmly fixing them so as to maintain rigidity. This is because the load applied to one load applying member 15 is dispersed in a plurality.
- each of the load applying members 15 is movable in the vertical direction A, and is independently controlled in the vertical movement A by the load control unit 53. You. Although FIG. 2 shows the six load applying members 15 arranged in two rows at equal intervals, the arrangement and number of the load applying members 15 are not limited thereto.
- a transfer-type fixing jig (not shown) is provided on the lower surface 11a of the transfer-type holding member 11 so that the transfer die 21 can be fixed to the transfer-type holding member 11 without play.
- irregularities of recording marks such as pits to be transferred and guide grooves are formed.
- the shape obtained by transferring the uneven shape of the surface of the resin replica that forms part of the information recording medium to be manufactured for example, an optical disk
- the convex portion of the resin replica is in the concave portion of the transfer mold 21, the concave portion of the resin replica.
- Correspond to the projections of the transfer mold and have shapes that can be fitted to each other. Hereinafter, this is referred to as a “transferred” shape.
- the transfer mold 21 is formed of a material that can transmit a laser beam emitted from a laser light source 31 described later.
- the base member 13 has a jig (not shown) for fixing the substrate 23, and the substrate 23 is fixed without play.
- a resin layer 25 is formed on the surface 23 a of the substrate 23 by applying a molten (softened) resin as an object to be transferred to a uniform thickness.
- a laser light source 31 and a detector 33 are fixed to a stay 32.
- the laser light source 31 is directed so as to emit a laser beam 41a downward (in the direction of the transfer mold 21).
- the light detector 33 is directed to receive the laser beam 41b from below.
- the transfer-type holding member 11 was emitted from the laser light source 31. It has a through hole 17 through which a laser beam and reflected light 41b and 41c of the laser beam to be described later pass.
- the light control unit 55 When the light control unit 55 receives a signal from the central processing unit 51, the light control unit 55 supplies a current to the laser light source 31 and a laser beam 41a is emitted from the laser light source 31. .
- the laser beam 41a emitted from the laser light source 31 passes through the through hole 17 of the transfer mold holding member 11 and a part thereof is reflected on the surface of the resin layer 25. The part is reflected by the surface 21b of the transfer mold 21.
- the laser beam 41 b reflected by the surface 21 b of the transfer mold 21 passes through the through hole 17 again and enters the optical detector 33.
- the laser beam 41 c reflected on the surface of the resin layer 25 passes through the transfer mold 21 again, passes through the through hole 17, and enters the optical detector 33.
- the light detector 33 receives the light beams 41b and 41c and sends a signal to the detection processing unit 57.
- the detection processing unit 57 calculates the distance from the resin layer 25 of the surface 21 b of the transfer mold 21 from this signal, and sends it to the central processing unit 51.
- a resin layer 25 is formed by applying a softened (melted) resin to a uniform thickness on a substrate 23 made of glass or resin. That is, the surface of the resin layer 25 is flat.
- the substrate 23 is fixed to the base member 13 without play by a fixing jig (not shown).
- the resin used for the resin layer 25 may be any resin such as a thermosetting resin and a photo-setting resin.
- a base member (not shown) may be embedded in the base member 13. Thus, the temperature of the resin layer 25 is kept at a constant temperature.
- the transfer die 21 is fixed to the transfer die holding member 11 without play by a fixing jig (not shown) so that the uneven surface 21b of the transfer die 21 faces the substrate 23.
- a fixing jig (not shown) so that the uneven surface 21b of the transfer die 21 faces the substrate 23.
- the parallelism between the surface 21 a of the transfer mold 21 and the surface of the resin layer 25 is accurately aligned using a CCD camera or a leveler (not shown), and the fixing jig (not shown) is again provided.
- the transfer mold 21 is fixed to the transfer mold holding member 11, and the substrate 23 is fixed to the base member 13.
- the surface 21a and the surface 21b of the transfer mold 21 are formed exactly in parallel, the surface 21a of the transfer mold 21 and the resin 21 are formed using the laser beam 41a.
- the parallelism with the surface of layer 25 can also be adjusted. That is, based on the angle of incidence of the laser beam 41a on the transfer mold 21 and the resin layer 25, and the distance between the surface 21b of the transfer mold 21 and the surface of the resin layer 25, The position of the laser beams 41b and 41c to be measured can be determined and adjusted.
- the operator sends a transfer start signal to the central processing unit 51 with the parallelism between the surface 21a of the transfer die 21 and the surface of the resin layer 25 adjusted as described above.
- the central processing unit 51 sends a signal to the light control unit 55, and a current flows from the light control unit 55 to the laser light source 31. Thereby, the laser beam 41 a is emitted from the laser light source 31.
- the detector 33 receives the laser beam 41 b reflected by the surface 21 b of the transfer mold 21 and the laser beam 41 c reflected by the surface of the resin layer 25. 5 Send the signal to 7.
- the detection processing unit 57 calculates the distance between the surface 21 b of the transfer mold 21 and the surface of the resin layer 25, and sends this to the central processing unit 51.
- the central processing unit 51 sends a signal to the load control unit 53 to lower each load control member 15 at a constant speed. That is, the surface 21a of the transfer mold 21 and the resin The surface of layer 25 is ideally close to each other while remaining parallel.
- the central processing unit 51 constantly includes the surface 21b of the transfer mold 21 and the resin layer obtained from the signal regarding the relative position of the laser beams 41b and 41c from the detection signal processing unit 57. The distance to the surface of 25 is transmitted.
- the central processing unit 51 determines whether or not the distance information sent from the detection signal processing unit 57 is delayed or advanced with respect to the theoretical speed of the transfer-type holding member 11 descending at a constant speed. You. If there is this delay or advance, it indicates that the transfer mold 21 is inclined with respect to the surface of the resin layer 25.
- the central processing unit 51 When the central processing unit 51 detects the above-mentioned “displacement”, the central processing unit 51 stores a processing pattern in advance and makes each load control unit 15 so as to compensate for this “displacement”. A signal for controlling the moving speed of the motor is transmitted to the load control unit 53. In response to this, the load control unit 53 adjusts the moving speed of each load control member 15. The central processing unit 51 repeats this operation until the distance information from the detection signal processing unit 57 eliminates the deviation from the theoretical speed.
- the transfer mold 21 is always kept parallel to the surface of the resin layer 25, the surface 21a of the transfer mold 21 comes into contact with the surface of the resin layer 25 while being parallel. Thereafter, when the transfer mold holding member 11 is lowered by the pushing amount previously stored in the central processing unit 51, the transfer mold 21 is stopped from lowering. In this state, if the resin of the resin layer 25 is a thermosetting resin, cooling is performed. If the resin of the resin layer 25 is a photocurable resin, ultraviolet rays or the like are irradiated on the resin layer 25 to cure the resin layer 25.
- a process such as detaching the resin layer 25 from the transfer mold 21 to obtain a resin replica continues, but is not described in detail because it is the same as a known process for manufacturing a recording medium.
- the surface 21 a of the transfer mold 21 and the surface of the resin layer 25 reliably maintain the parallel state immediately before the transfer mold 21 and the resin layer 25 come into contact with each other. You can. Therefore, since the transfer mold 21 is pushed in parallel to the resin layer 25 without tilting with respect to the resin layer 25, high transfer accuracy can be obtained even with a fine uneven pattern.
- the reaction force acting on the transfer mold 21 can be minimized, deterioration due to deformation of the transfer mold 21 can be reduced.
- deformation of the substrate 23 can be reduced. Further, even if the above-described transfer step is performed in the air, it is preferable because the entrapment of air between the transfer mold 21 and the resin layer 25 can be minimized.
- a laser beam 41 d reflected by the surface 21 a of the transfer die 21 may be used. According to this, even if the transfer mold 21 deforms and the parallelism between the surface 21 a and the surface 21 b shifts, the surface 21 a of the transfer mold 21 and the surface of the resin layer 25 remain in contact with each other. Can be maintained accurately.
- a slit-shaped through hole 17 ′ is formed in the transfer-type holding member 11, and the laser light source 31 and the detector 3 are formed. The measurement may be performed while moving 3 along the through hole 17 '.
- the parallelism between the transfer mold 21 and the surface of the resin layer 25 can be compensated in a wider range, which is preferable.
- the parallelism between the transfer mold 21 and the surface of the resin layer 25 is compensated in a wider range at a plurality of locations. Is preferred.
- the parallelism between 21 and the surface of the resin layer 25 can be adjusted. In addition, it is preferable that deformation and the like of each member can be measured.
- the deformation of the transfer mold 21 is also measured by measuring the laser beams 41d and 41b reflected by the surfaces 21a and 21b of the transfer mold 21. be able to. That is, the parallelism between the transfer mold 21 and the surface of the resin layer 25 is adjusted using the laser beams 41c and 41d. Further, the deformation of the transfer mold 21 is measured using the laser beams 41b and 41d. This means that the measurement can be continued even when the surface 21 a of the transfer mold 21 comes into contact with the resin layer 25 and is further pushed in.
- the resin layer 25 is made of a material that transmits the laser beam 41 a
- the resin layer 25 flows and the height of the surface changes.
- the surface 23 a of the substrate 23 be used as a reference rather than the surface of the resin layer 25. That is, after the transfer mold 21 comes into contact with the surface of the resin layer 25, the laser molds 41 1d and 41e are used instead of the laser beams 41d and 41c.
- the laser light source 31 and the detector 33 are arranged in the same manner as in the above-described embodiment, and the stay 3 2 (the mounting direction of the load applying member 15) above the transfer mold holding member 11 is attached. (Not shown), and the laser light source 31 a and the detector 33 a are fixedly arranged on the sides (not shown) of the transfer mold 21 and the substrate 23. Thereby, even when the transfer mold 21 is formed of a material that does not transmit the laser beam emitted from the laser light source 31, the parallelism between the transfer mold 21 and the surface of the resin layer 25 can be adjusted. Can be done.
- the height position of the surface 2 lb of the transfer mold 21 is measured by the laser light source 31 and the detector 33, and the height of the surface of the resin layer 25 is measured by the laser light source 31a and the detector 33a. It is.
- the surface 21a and the surface 21b are formed in parallel. Thus, the parallelism between the surface 21a of the transfer mold 21 and the surface of the resin layer 25 can be accurately maintained by controlling as in the above-described embodiment.
- a laser light source 3 lb and a detector 33 b are fixedly arranged on the side of the transfer die 21 and the substrate 23, and a laser beam 3 b is fixed on a stay (not shown), and the height of the surface 2 la of the transfer die 21 is set. The position may be measured. According to this, the laser light source 31b and the detector 33b can be relatively rotated around the transfer mold 21 and the substrate 23, and the resin layer is formed at a plurality of positions of the transfer mold 21. It is preferable to be able to compensate for the parallelism with 25.
- the laser light source 31a and the detector 33a and the laser light source 31b and the detector 33b are relatively relatively formed around the transfer mold 21 and the substrate 23. It can be rotated, the surface of the transfer die 21 and the table of the resin layer 25 This is more preferable because the parallelism at a plurality of positions on the surface can be measured.
- the transfer object 103 held detachably in the concave portion of the concave-convex pattern of the transfer mold 101 is brought into contact with the transfer mold 101 on the substrate 105.
- the method of the present invention is effective even in a method for manufacturing a recording medium in which the recording medium is transferred onto the substrate 105. Even in this case, the distance between the transfer mold 101 and the substrate 105 is continuously measured by the above-described process, and the distance between the transfer mold 101 and the substrate 105 is kept close to each other while being kept parallel to each other. That is, the method of the present invention is effective when using a method of bringing two flat plates into parallel contact with each other.
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JP2004095314 | 2004-03-29 | ||
JP2004-095314 | 2004-03-29 |
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WO2005093737A1 true WO2005093737A1 (ja) | 2005-10-06 |
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PCT/JP2005/005646 WO2005093737A1 (ja) | 2004-03-29 | 2005-03-22 | パターン転写装置及びパターン転写方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007139752A (ja) * | 2005-10-18 | 2007-06-07 | Canon Inc | パターン形成装置、パターン形成方法およびパターン形成用モールド |
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JP2001085501A (ja) * | 1999-09-16 | 2001-03-30 | Toshiba Corp | 位置合わせ方法および加工装置 |
JP2001277200A (ja) * | 2000-03-30 | 2001-10-09 | Toshiba Corp | 微細加工装置 |
JP2001287200A (ja) * | 2000-04-07 | 2001-10-16 | Toshiba Corp | スタンプ装置、スタンプ方法および原盤作製方法 |
JP2002100079A (ja) * | 2000-09-25 | 2002-04-05 | Toshiba Corp | 転写装置及び転写方法 |
JP2002100038A (ja) * | 2000-09-27 | 2002-04-05 | Toshiba Corp | 転写装置、転写用カートリッジ、及び転写方法 |
JP2003516644A (ja) * | 1999-12-10 | 2003-05-13 | オブドゥカト アクティエボラーグ | 構造物の製造に関する装置および方法 |
JP2003517727A (ja) * | 1999-10-29 | 2003-05-27 | ボード・オブ・リージエンツ,ザ・ユニバーシテイ・オブ・テキサス・システム | インプリント・リソグラフィのための高精度方向付けアライメントデバイスおよびギャップ制御デバイス |
JP2004034300A (ja) * | 2002-06-28 | 2004-02-05 | Elionix Kk | 微小型押成形装置 |
JP2004071831A (ja) * | 2002-08-06 | 2004-03-04 | Canon Inc | 微細加工装置およびこれを用いたデバイス |
JP2005026462A (ja) * | 2003-07-02 | 2005-01-27 | Canon Inc | 微細加工方法及び微細加工装置 |
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2005
- 2005-03-22 WO PCT/JP2005/005646 patent/WO2005093737A1/ja active Application Filing
- 2005-03-25 TW TW94109302A patent/TW200537456A/zh unknown
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001085501A (ja) * | 1999-09-16 | 2001-03-30 | Toshiba Corp | 位置合わせ方法および加工装置 |
JP2003517727A (ja) * | 1999-10-29 | 2003-05-27 | ボード・オブ・リージエンツ,ザ・ユニバーシテイ・オブ・テキサス・システム | インプリント・リソグラフィのための高精度方向付けアライメントデバイスおよびギャップ制御デバイス |
JP2003516644A (ja) * | 1999-12-10 | 2003-05-13 | オブドゥカト アクティエボラーグ | 構造物の製造に関する装置および方法 |
JP2001277200A (ja) * | 2000-03-30 | 2001-10-09 | Toshiba Corp | 微細加工装置 |
JP2001287200A (ja) * | 2000-04-07 | 2001-10-16 | Toshiba Corp | スタンプ装置、スタンプ方法および原盤作製方法 |
JP2002100079A (ja) * | 2000-09-25 | 2002-04-05 | Toshiba Corp | 転写装置及び転写方法 |
JP2002100038A (ja) * | 2000-09-27 | 2002-04-05 | Toshiba Corp | 転写装置、転写用カートリッジ、及び転写方法 |
JP2004034300A (ja) * | 2002-06-28 | 2004-02-05 | Elionix Kk | 微小型押成形装置 |
JP2004071831A (ja) * | 2002-08-06 | 2004-03-04 | Canon Inc | 微細加工装置およびこれを用いたデバイス |
JP2005026462A (ja) * | 2003-07-02 | 2005-01-27 | Canon Inc | 微細加工方法及び微細加工装置 |
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JP2007139752A (ja) * | 2005-10-18 | 2007-06-07 | Canon Inc | パターン形成装置、パターン形成方法およびパターン形成用モールド |
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