WO2010087083A1 - ウエハレンズの製造方法及びウエハレンズ製造装置 - Google Patents
ウエハレンズの製造方法及びウエハレンズ製造装置 Download PDFInfo
- Publication number
- WO2010087083A1 WO2010087083A1 PCT/JP2009/070889 JP2009070889W WO2010087083A1 WO 2010087083 A1 WO2010087083 A1 WO 2010087083A1 JP 2009070889 W JP2009070889 W JP 2009070889W WO 2010087083 A1 WO2010087083 A1 WO 2010087083A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- wafer lens
- pressure
- stage
- resin
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
- B29C39/006—Monomers or prepolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/04—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles using movable moulds not applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/24—Feeding the material into the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00278—Lenticular sheets
- B29D11/00307—Producing lens wafers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Definitions
- the present invention relates to a wafer lens manufacturing method and a wafer lens manufacturing apparatus.
- the wafer lens manufacturing method using a photocurable resin as the curable resin will be briefly described.
- a glass substrate is sucked and fixed by a vacuum chuck device, and the resin is dropped on the glass substrate (dispensing process). ). Thereafter, the glass substrate is raised toward the upper mold, and the resin is pressed against the mold (imprint process).
- the mold is a light-transmitting mold having a cavity, and is held and fixed by a stamp holder.
- the resin filled in the cavity is irradiated with light from above the mold to photocur the resin (exposure process). Then, the resin is released from the mold while lowering the glass substrate (release process). As a result, a wafer lens having a plurality of lens portions formed on a glass substrate can be manufactured.
- the glass substrate and the mold may be arranged upside down.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a wafer lens manufacturing method and a wafer lens manufacturing apparatus capable of easily obtaining a highly accurate wafer lens.
- a wafer lens manufacturing method in which an optical member made of a photocurable resin is provided on at least one surface of a substrate, A dispensing step of dropping the photocurable resin on a mold having a negative surface corresponding to the optical surface shape of the optical member; After the dispensing step, an imprinting step of imprinting by pressing the mold and the substrate on which the photocurable resin is dispensed, After the imprint process, an exposure process of irradiating the photocurable resin with light, A mold release step of releasing the mold from the substrate after the exposure step, There is provided a method for manufacturing a wafer lens, wherein the pressure is reduced in at least a part of the dispensing step, the imprint step, the exposure step, and the release step.
- the pressure is reduced and then released to atmospheric pressure.
- the pressure is reduced and then released to atmospheric pressure.
- the pressure is reduced and then released to atmospheric pressure.
- the pressure is reduced and then released to atmospheric pressure.
- a container having an upper surface that has an opening and a lid that closes the opening;
- a mold which is arranged inside the container and has a cavity of a predetermined shape;
- a substrate that is disposed opposite to the mold inside the container and divides the internal space of the container formed by the lid portion vertically, A lower space portion formed between the mold and the substrate and an upper space portion formed between the substrate and the lid portion communicate with each other;
- a wafer lens manufacturing apparatus is provided, wherein a pressure reducing mechanism for decompressing the lower space portion or the upper space portion is provided in at least one of the lower space portion and the upper space.
- the pressure is reduced at least in a dispensing process, an imprint process, an exposure process, and a mold release process, if the pressure is reduced during the dispensing process or the imprint process, It is possible to prevent entrainment of bubbles. Further, the substrate can be prevented from warping or deformation in the imprint process. Further, when the pressure is reduced during the exposure process, oxygen inhibition to the resin can be prevented, the resin can be cured reliably, and when the pressure is reduced during the mold release, the resin is easily released. As a result, a highly accurate wafer lens can be easily obtained.
- the lower space portion and the upper space portion communicate with each other, and the pressure reducing mechanism is provided in at least one of the lower space portion or the upper space portion. It has a structure that eliminates the differential pressure between the two parts. Therefore, both space portions can be easily reduced in pressure by the operation of the pressure reducing mechanism, and as a result, a highly accurate wafer lens can be manufactured.
- FIG. 5 is a diagram showing a schematic configuration of an X-axis moving mechanism used in a preferred embodiment of the present invention, and is a cross-sectional view taken along line AA in FIG. 4.
- FIG. 5 is a diagram showing a schematic configuration of a Y-axis moving mechanism used in a preferred embodiment of the present invention, and is a cross-sectional view taken along line BB of FIG.
- FIG. 8 is a cross-sectional view taken along the line CC of FIG. It is sectional drawing which shows schematic structure of the metal mold
- the molded wafer lens 1 has a circular glass substrate 2 and a plurality of convex lens portions 4.
- the glass substrate 2 is an example of a substrate.
- a plurality of convex lens portions 4 are arranged in an array on the surface of the glass substrate 2.
- the convex lens unit 4 may have a fine structure such as a diffraction groove or a step formed on the surface of the optical surface.
- a concave lens may also be used.
- convex lens portion 4 is formed only on a part of the surface of the glass substrate 2.
- convex lens portions 4 are sequentially formed on a single glass substrate 2 in units of molds (see arrows in FIG. 1 and FIG. 2), and finally for each convex lens portion 4.
- the glass substrate 2 is cut and separated into pieces.
- the order of forming the glass substrate 2 using the convex lens portion 4 is not particularly limited to this, and even if the order is formed randomly, the order is sequentially formed in the reverse direction to FIG. It may be a thing.
- the convex lens portion 4 is made of a photocurable resin.
- a photocurable resin for example, an acrylic resin, an allyl ester resin, PDMS, an epoxy resin, or the like can be used, and these resins can be reaction-cured by radical polymerization or cationic polymerization.
- the wafer lens manufacturing apparatus 10 mainly includes a surface plate 20 having a rectangular parallelepiped shape, an XY stage 30 provided on the surface plate 20, and an XY stage 30 in the X-axis direction. And an X-axis moving mechanism 100 for moving the XY stage 30 along the Y-axis direction, and a pair of Y-axis moving mechanisms 200 for moving the XY stage 30 along the Y-axis direction.
- the X-axis moving mechanism 100 has an X-axis guide 102 extending in the X-axis direction. As shown in FIG. 5, an XY stage 30 is disposed below the X-axis guide 102. The XY stage 30 is formed with a pair of protrusions 31 extending in the X-axis direction, and an X-axis guide 102 is disposed between the protrusions 31.
- the X-axis moving mechanism 100 has a linear motor 110 that actually moves the XY stage 30 along the X-axis direction.
- the linear motor 110 has a known mechanism mainly composed of a stator 112, a mover 114, a scale 116, and a sensor 118.
- the stator 112 is fixed to the X-axis guide 102.
- the mover 114 is fixed to one protrusion 31 of the XY stage 30 and can move along the X-axis guide 102.
- the scale 116 is fixed to the X axis guide 102.
- the sensor 118 is fixed to the other protrusion 31 of the XY stage 30.
- the movable element 114 moves along the stator 112 while detecting the scale 116 by the sensor 118, whereby the XY stage 30 moves along the X-axis guide 102 by a predetermined distance in the X-axis direction. It is movable.
- An air slide guide mechanism 120 is provided on each protrusion 31 of the XY stage 30.
- the air slide guide mechanism 120 has an ejection hole 122 for ejecting air.
- the air slide guide mechanism 120 ejects air from the respective ejection holes 122 toward the X-axis guide 102 to float the XY stage 30 relative to the X-axis guide 102.
- a plurality of air slide guide mechanisms 130 are provided below the XY stage 30.
- Each air slide guide mechanism 130 has two ejection holes 132 and 136 for ejecting air and one suction hole 134 for sucking air.
- the air slide guide mechanism 130 sucks air from the suction holes 134 while ejecting air from the ejection holes 132 and 136 toward the surface plate 20, so that the XY stage 30 is at a certain height position with respect to the surface plate 20. It comes to surface.
- the XY stage 30 floats with respect to the X-axis guide 102 and the surface plate 20 by the air slide guide mechanisms 120 and 130, the movement by the X-axis movement mechanism 100 can be performed smoothly.
- the Y-axis moving mechanism 200 has a pair of Y-axis guides 202 extending in the Y-axis direction.
- a pair of Y-axis moving bodies 210 are provided on the Y-axis guide 202.
- Both ends of the X-axis guide 102 are fixed to each Y-axis moving body 210, and the Y-axis moving body 210 supports the Y-axis while supporting the X-axis guide 102 and the XY stage 30 held by the X-axis guide 102. It moves along the guide 202 in the Y-axis direction.
- the Y-axis moving mechanism 200 is provided with a linear motor 210. Similar to the configuration of the linear motor 110 of the X-axis moving mechanism 100, the linear motor 210 mainly includes a stator 222, a mover 224, a scale 226, and a sensor (not shown). The sensor detects the scale 226. However, the mover 224 moves along the stator 222, so that the Y-axis moving body 210 can move along the Y-axis guide 202 by a predetermined distance in the Y-axis direction.
- hook portions 212 and 214 having a hook shape are formed at the end portion of the Y-axis moving body 210, and the end portion 204 of the Y-axis guide 202 is formed inside each hook portion 212 and 214. 206 is embedded so as to be fitted with a gap.
- the hook portion 212 is provided with an air slide guide mechanism 230
- the hook portion 214 is provided with an air slide guide mechanism 240.
- the air slide guide mechanism 230 has ejection holes 232, 234, and 236 that can eject air from three directions (upper, lateral, and lower).
- the air slide guide mechanism 240 also has ejection holes 242, 244, and 246 that can eject air from three directions (upper, lateral, and lower).
- the air slide guide mechanism 230 ejects air from the ejection holes 232, 234, 236 toward the end portion 204 of the Y-axis guide 202, while the air slide guide mechanism 240 is ejected from the ejection holes 242, 244, 246. Air is ejected toward the end portion 206 of the Y-axis guide 202 so that the Y-axis moving body 210 floats with respect to the Y-axis guide 202. Further, by stopping a part or all of the ejection openings of the air slide guide mechanisms 230 and 240, the Y-axis guide 202 can be brought into contact with and adsorbed to a part of the inner wall of the 210.
- a dispenser 32 that drops resin on the glass substrate 2
- a laser length measuring device 34 that measures the flatness (tilt) and height position of the mold
- a microscope 36 used for alignment between the mold and the glass substrate 2 is installed.
- the XY stage 30 is formed with a through hole 40 having a circular shape as viewed from above passing through the upper and lower surfaces, and the glass substrate 2 is installed in the through hole 40.
- a step is formed in the through hole 40, and the glass substrate 2 is fixed to the step with a spring (not shown).
- a lid portion 42 having a square shape as viewed from above is provided so as to close the through hole 40.
- the lid 42 is made of a light transmissive member such as a quartz plate, and a light source 44 is installed above the lid 42.
- the mold part 50 is installed on top of the Z-axis movement mechanism 300 (Z stage 304).
- the Z-axis moving mechanism 300 mainly includes a rectangular tube-shaped Z-axis guide 302 having a flange at the top, a Z stage 304 that moves in the Z-axis guide 302 in the Z-axis direction, and the Z stage 304 as a Z-axis. And a motor 306 that moves in a direction (vertical direction).
- the motor 306 has a built-in potentiometer, and a shaft 308 is connected to the motor.
- the shaft 308 is vertically expanded and contracted by the operation of the motor 306, and accordingly, the Z stage 304 and the mold part 50 are moved vertically.
- a gap 310 is provided between the inner peripheral surface of the Z-axis guide 302 and the side surface of the Z stage 304.
- the Z-axis guide 302 is provided with an air slide guide mechanism 320.
- the air slide guide mechanism 320 has ejection holes 322, 324, 326, and 328 for ejecting air.
- the air slide guide mechanism 320 ejects air from the ejection holes 322, 324, 326, and 328 toward the Z stage 304 to float the Z stage 304.
- the inner peripheral surface forming the flange of the Z-axis guide 302 is sealed by a sealing member 330 such as silicon grease, oil seal, or O-ring, and the air in the gap 310 is transferred to the Z-axis guide 302.
- the space between the Z-axis guide 302 and the Z stage 304 is hermetically sealed so as not to leak (not come out) above the 302.
- a flange portion is provided around the Z stage 304 that moves up and down, and the space between the fixed Z-axis guide 302 and the flange portion is covered with a metal bellows in the same manner. It is more preferable to obtain the above effect.
- the XY stage 30, the surface plate 20, and the Z-axis guide 302 constitute a container whose upper surface is open.
- the upper surface opening of the container is closed by the lid portion 42, so that a space portion 400 is formed in a region surrounded by the lid portion 42, the XY stage 30, the surface plate 20, and the Z-axis guide 302.
- the space 400 is formed by the glass substrate 2 installed on the XY stage 30 between the upper space 402 configured between the glass substrate 2 and the lid 42, and between the glass substrate 2 and the Z-axis moving mechanism 300. It is partitioned into a lower space portion 404 that is configured.
- a communication hole 3 that penetrates the upper and lower surfaces and communicates with the upper space portion 402 and the lower space portion 404 is formed, so that the differential pressure between the space portions 402 and 404 is eliminated. It has become.
- the lower space 404 is connected to a decompression mechanism 410 such as a vacuum pump, and the operation of the decompression mechanism 410 causes the space 400 to be in a decompressed state.
- a communication hole 38 may be formed in the XY stage 30 as shown by a dotted line in FIG. 7, for example.
- the decompression mechanism 410 is connected to the lower space 404, it may be connected to the upper space 402.
- the mold part 50 mainly includes a first support base 52, a piezo actuator 54, a second support base 56, and a pressure sensor 58 that are sequentially provided on the Z stage 304. , A third support base 60 and a mold 64 are provided.
- the first support base 52 and the second support base 56 are connected by a preloading screw 66 and are urged to be close to each other by a spring 67.
- Three piezo actuators 54 and an L-shaped leaf spring 68 are installed between the first support base 52 and the second support base 56 (see FIG. 10).
- the second support base 56 and the third support base 60 are connected by screws 70, and a pressure sensor 58 is installed between the second support base 56 and the third support base 60.
- a ⁇ stage 62 for rotating the mold 64 may be provided between the third support base 60 and the mold 64.
- the three piezo actuators 54 are provided at three corners on the first support base 52, respectively, and support the second support base 56 at three points.
- the inclination of the second support base 56, the first support base 60, and the mold 64 is adjusted by controlling the operation of each piezo actuator 54 based on the output value of the pressure sensor 58. .
- the piezoelectric actuator is composed of three piezo actuators.
- the arrangement and the number are suitable for the above-described paralleling and load control, and the number is not limited to this.
- the mold 64 has a plurality of cavities 65 (concave portions) formed in an array.
- the surface (molding surface) shape of the cavity 65 is a negative shape corresponding to the convex lens portion 4 in the wafer lens 1.
- the dispenser 32 has a needle part 33 for dropping resin, and the needle part 33 penetrates the XY stage 30.
- a space part 406 is formed in a region surrounded by the XY stage 30, the surface plate 20, and the Z-axis moving mechanism 300.
- the tip of the needle portion 33 is disposed in the space portion 406.
- the space portion 406 is brought into a reduced pressure state by the operation of the pressure reducing mechanism 410.
- FIG. 11 The other components in FIG. 11 are the same as those in FIG. 7, and the same components are denoted by the same reference numerals and the description thereof is omitted.
- the wafer lens manufacturing apparatus 10 having the above configuration includes a control device 500.
- the control device 500 includes a dispenser 32, a laser length measuring device 34, a microscope 36, a light source 44, a mold unit 50 (piezo actuator 54, pressure sensor 58, ⁇ stage 62, etc.), X-axis moving mechanism 100, Y-axis moving mechanism 200.
- the Z-axis moving mechanism 300, the air slide guide mechanisms 120, 130, 230, 240, 320, the decompression mechanism 410, and the like are connected.
- the control device 500 receives the detection results of these members and operates (activates and stops). Etc.).
- the glass substrate 2 is set on the XY stage 30 (wafer loading step S1), and the through hole 40 of the XY stage 30 is covered with a lid portion 42 (see FIG. 7).
- the X-axis moving mechanism 100 (linear motor 110), the Y-axis moving mechanism 200 (linear motor 220), the air slide guide mechanisms 120, 130, 230, and 240 are controlled to move the XY stage 30 in the X-axis direction and the Y-direction.
- the slider is moved while being floated in the axial direction by air, and alignment is performed so that the dispenser 32 is positioned above the mold 64 (pre-alignment step S2).
- an alignment mark is attached in advance to a predetermined position of the surface plate 20, and in the pre-alignment process, the dispenser 32 is aligned while checking the alignment mark with the microscope 36.
- the decompression mechanism 410 is controlled to decompress the space 406.
- Depressurization basically means that the space 406 is in a vacuum state, specifically, 10 ⁇ 2 MPa or less.
- dispensing process S3 to the release process S7 are basically under reduced pressure, and the definition of reduced pressure is as described above.
- the X-axis moving mechanism 100 (linear motor 110), the Y-axis moving mechanism 200 (linear motor 220), the air slide guide mechanisms 120, 130, 230, and 240 are controlled to move the XY stage 30 in the X-axis direction and the Y-direction.
- the glass substrate 2 is slid and moved while being floated in the axial direction, and alignment is performed so that the glass substrate 2 previously set is positioned above the mold 64 of the mold unit 50 (see the alignment step S4 and FIG. 7). .
- a well-known laser length measuring device 34 is disposed immediately above the mold 64 to stop the operation of the air slide guide mechanisms 120, 130, 230, 240, and the XY stage 30 and the surface plate. 20 is brought into a locked state.
- the air slide guide mechanism 320 is controlled so that air is ejected from only the ejection holes 322 and 328, for example, and the Z stage 304 is partially brought into contact with the inner wall of the Z-axis guide 302.
- the position of the mold part 50 can be kept constant and locked by the frictional force between the Z stage 304 and the Z-axis guide 302.
- the height of three or more points is measured by the laser length measuring device 34, and the inclination of the upper surface of the mold 64 and the height position of the mold 64 are calculated from the result, and the output value (deviation of angle ⁇ ) is calculated.
- the piezoelectric actuator 54 is controlled so that the lower surface of the glass substrate 2 and the upper surface of the mold 64 are parallel to each other.
- the locked state is released, and the microscope 36 is placed immediately above the mold 64.
- the operation of the air slide guide mechanisms 120, 130, 230, 240 is stopped to bring the XY stage 30 and the surface plate 20 into close contact with each other.
- the air slide guide mechanism 320 is controlled so that air is ejected from only the ejection holes 322 and 328, for example, and the Z stage 304 is partially brought into contact with the inner wall of the Z-axis guide 302 as shown in FIG. Thereby, the position of the mold part 50 is locked (positioned). In other words, the position of the mold part 50 is kept constant by the frictional force between the Z stage 304 and the Z-axis guide 302.
- the contact between the guide 302 and the stage 304 makes it possible to always hold the mold attached on the guide 302 at a fixed position and angle with respect to the guide. As a result, the stage and the mold can operate smoothly in the unlocked state, and in the locked state, it is possible to perform the molding operation in the same posture as at the time of adjustment. . (3) After that, the mold 64 is detected by the microscope 36, the actual arrangement position of the mold 64 is grasped based on the detection result, and the control apparatus 500 presets the axis coordinates in accordance with the actual arrangement position. The axis coordinates of the initial position of the mold 64 are converted.
- At least two positions are recognized by the microscope 36 from above the mold 64, and one of the positions is recognized as the origin O and the other position as the correction point.
- an alignment mark is diagonally attached to the mold 64 in advance, and one alignment mark is recognized as the origin O and the other alignment mark is recognized as a correction point.
- the microscope 36 is used as an example of a position detector that detects the arrangement position of the mold 64.
- a straight line for coordinate conversion from the origin O to the correction point is calculated, and a deviation (a deviation value of the angle ⁇ , see FIG. 16) between the calculated straight line and the preset axis coordinates is calculated.
- the axis coordinates are converted from the deviation. That is, in the control device 500, an arrangement position on the plane of the mold 64 is set in advance as an axis coordinate, and a straight line for coordinate conversion calculated by recognizing the calculated axis coordinate by the microscope 36 is used. As shown in FIG. 16, the preset axis coordinates (see the broken line part) are converted into the axis coordinates (see the solid line part) calculated from the deviation. Thereby, the two-dimensional relative positional relationship of the metal mold
- a ⁇ stage 62 (see FIG. 9) for rotating the mold 64 is provided in the mold unit 50, and instead of the conversion of the axis coordinates by the control device 500, the ⁇ stage 62 is controlled so that the mold 64 is preliminarily provided. It may be rotated so as to correspond to the set coordinate axis (the shifted axis coordinate is restored).
- the position of the mold unit 50 is controlled, the mold 64 is moved up to a predetermined position with respect to the glass substrate 2, and the mold 64 is held at the predetermined position (imprint process S5).
- the Z-axis moving mechanism (motor 306) is operated to extend the shaft 308 upward and move the Z stage 304 upward.
- the operation of the motor 306 is controlled based on the output value of the potentiometer built in the motor 306, and the Z stage 304 is moved to a predetermined height position.
- the resin is pressed against the glass substrate 2 and gradually spreads to fill the cavity 65 of the mold 64.
- the decompression mechanism 410 is controlled to decompress the space 400.
- the light source 44 is controlled while the Z stage 304 is held at the set position, and the resin is irradiated with light to cure the resin (exposure step S6).
- the pressure reducing mechanism 410 is controlled to keep the space 400 in a depressurized state, so that oxygen inhibition to the resin can be prevented and the resin can be reliably cured. Similar effects can be obtained by substituting with a gas other than oxygen.
- the glass substrate 2 is contracted even if the resin is cured and contracted. May not follow, and distortion may occur inside the resin, or transfer of the surface shape of the cavity 65 to the resin may be insufficient.
- the pressure of the mold part 50 is controlled to keep the pressing force of the mold 64 against the glass substrate 2 at a predetermined pressure. Specifically, based on the output value of the pressure sensor 58, the piezo actuator 54 is operated to move the mold 64 upward.
- the light source 44 is turned off and the light irradiation to the resin is stopped.
- the motor 306 is operated to contract the shaft 308 downward, and the Z stage 304 is moved downward.
- the cured resin is released from the mold 64 together with the glass substrate 2 (release step S7).
- the dispensing step S3, the imprinting step S5, the exposure step S6, and the release step S7 are repeated a predetermined number of times to further sequentially form a plurality of convex lens portions 4 on the glass substrate 2 (see FIGS. 1 and 2). 1 is manufactured.
- the movement mechanisms 100, 200, 300 and the air slide guide mechanisms 120, 130, 230, 240, 320 are actuated to operate the XY stage 30 and the Z stage 304. Is moved to a predetermined position, and finally the lid 42 is removed from the XY stage 30 and the glass substrate 2 is taken out (takeout step S8).
- step and repeat method in which the convex lens portions 4 are sequentially formed on the glass substrate 2 in a mold unit is shown, but the size (area) of the glass substrate 2 instead of the mold 64 is shown.
- a so-called “collective method” in which a desired number of convex lens portions 4 are collectively formed on the glass substrate 2 may be employed using a large-diameter mold corresponding to the above.
- the vicinity of the glass substrate 2 is locally reduced in pressure from the dispensing step S3 to the release step S7.
- the wafer lens manufacturing apparatus 10 ( The whole of the wafer lens apparatus 10 including the vicinity of the glass substrate 2 may be set in a reduced pressure state by installing the entire apparatus in a closed system such as a chamber.
- control is described to perform both the operation and stop of the XY air slide mechanism and the operation and stop of the Z air slide mechanism.
- at least one of the controls is performed. There may be.
- the dispensing process, the imprint process, the exposure process, and the mold release process are performed under reduced pressure. Therefore, when the pressure is reduced during the dispensing process or the imprint process, bubbles are formed in the resin. Can be prevented. In addition, particularly during the imprint process, since the differential pressure is eliminated between the upper space portion 402 and the lower space portion 404, warpage and deformation of the glass substrate 3 can be prevented. Further, when the pressure is reduced during the exposure process, oxygen inhibition to the resin can be prevented, the resin can be cured reliably, and when the pressure is reduced during the mold release, the resin is easily released. As a result, a highly accurate wafer lens 1 can be obtained.
- the lower space 404 and the upper space 402 communicate with each other through the communication hole 38, and the decompression mechanism 410 is connected to the lower space 404.
- the structure is such that the differential pressure is eliminated from the portion 402. Therefore, both the space portions 404 and 402 can be easily brought into a decompressed state by the operation of the decompression mechanism 410, and this also leads to the manufacture of the wafer lens 1 with high accuracy.
- the space 400 is depressurized in the imprint process S5 and the exposure process S6.
- the communication hole 3 formed in the glass substrate 2 may be eliminated, and only the lower space 404 may be depressurized.
- both the upper space portion 402 and the lower space portion 404 are depressurized in the imprint process S5
- no differential pressure is generated between the upper space portion 402 and the lower space portion 404, so that bubbles are entrained in the resin.
- the glass substrate 2 is warped or deformed due to the differential pressure. Therefore, when the lower space 404 is opened from the reduced pressure state to the atmospheric pressure, the glass substrate 2 can be kept flat and imprinted in the flat state.
- the resin when the resin is exposed in a reduced pressure state, the resin can be reliably cured by preventing the resin from being inhibited by oxygen. However, if it is then released to atmospheric pressure, the transferability can be improved. it can.
- the release to atmospheric pressure in these steps is indicated by a one-dot chain line in FIG.
- the said embodiment forms a resinous type
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
前記光学部材の光学面形状に対応したネガ形状の面を持つ金型に前記光硬化性樹脂を滴下するディスペンス工程と、
前記ディスペンス工程後、前記光硬化性樹脂をディスペンスされた前記金型と前記基板とを押圧してインプリントするインプリント工程と、
前記インプリント工程後、前記光硬化性樹脂に対して光照射する露光工程と、
前記露光工程後に、前記金型を前記基板から離型する離型工程と、を備え、
前記ディスペンス工程、前記インプリント工程、前記露光工程及び前記離型工程のうち少なくとも一部で減圧することを特徴とするウエハレンズの製造方法が提供される。
前記収容体の内部に配置され、所定形状のキャビティを有する金型と、
前記収容体の内部で前記金型に対して対向配置され、前記蓋部によって形成される前記収容体の内部空間を上下に区画する基板と、を備え、
前記金型と前記基板との間に形成される下部空間部と、前記基板と前記蓋部との間に形成される上部空間部とが互いに連通し、
前記下部空間部又は前記上部空間のうち少なくとも一方に、当該下部空間部又は前記上部空間部を減圧する減圧機構が設けられていることを特徴とするウエハレンズ製造装置が提供される。
(1)図15に示す通り、周知のレーザー測長器34を金型64の直上に配置して、エアスライドガイド機構120、130、230、240の作動を停止させてXYステージ30と定盤20とを密着させたロック状態とする。
(2)その後、レーザー測長器34によって3点以上の高さ測定を行って、その結果から金型64上面の傾きと、金型64の高さ位置を算出し出力値(角度αのズレ値。図15参照。)に基づき、ピエゾアクチュエータ54を制御して、ガラス基板2の下面と金型64の上面とを互いに平行にする。
(3)その後、顕微鏡36で金型64を検出してその検出結果に基づき金型64の現実の配置位置を把握し、その現実の配置位置に合わせて、制御装置500において軸座標として予め設定しておいた金型64の初期位置の軸座標を変換する。
2 ガラス基板
3 連通孔
4 凸レンズ部
10 ウエハレンズ製造装置
20 定盤
30 XYステージ
31 突条部
32 ディスペンサ
33 針部
34 レーザー測長器
36 顕微鏡
38 連通孔
40 貫通孔
42 蓋部
44 光源
50 金型部
52 第1の支持台
54 ピエゾアクチュエータ
56 第2の支持台
58 圧力センサ
60 第3の支持台
62 θステージ
64 金型
65 キャビティ
66 ネジ
68 板バネ
70 ネジ
100 X軸移動機構
102 X軸ガイド
110 リニアモータ
112 固定子
114 可動子
116 スケール
118 センサ
120 エアスライドガイド機構
122 噴出孔
130 エアスライドガイド機構
132、136 噴出孔
134 吸引孔
200 Y軸移動機構
202 Y軸ガイド202
204、206 端部
210 Y軸移動体
212、214 フック部
220 リニアモータ
222 固定子
224 可動子
226 スケール
230 エアスライドガイド機構
232、234、236 噴出孔
240 エアスライドガイド機構
242、244、246 噴出孔
300 Z軸移動機構
302 Z軸ガイド
304 Zステージ
306 モータ
308 シャフト
310 隙間
320 エアスライドガイド機構
322、324、326、328 噴出孔
330 シーリング部材
400 空間部
402 上部空間部
404 下部空間部
406 空間部
410 減圧機構
500 制御装置
Claims (6)
- 基板の少なくとも一方の面に光硬化性樹脂製の光学部材を設けたウエハレンズの製造方法であって、
前記光学部材の光学面形状に対応したネガ形状の面を持つ金型に前記光硬化性樹脂を滴下するディスペンス工程と、
前記ディスペンス工程後、前記光硬化性樹脂をディスペンスされた前記金型と前記基板とを押圧してインプリントするインプリント工程と、
前記インプリント工程後、前記光硬化性樹脂に対して光照射する露光工程と、
前記露光工程後に、前記金型を前記基板から離型する離型工程と、を備え、
前記ディスペンス工程、前記インプリント工程、前記露光工程及び前記離型工程のうち少なくとも一部で減圧することを特徴とするウエハレンズの製造方法。 - 前記ディスペンス工程において、減圧した後に大気圧に開放することを特徴とする請求項1に記載のウエハレンズの製造方法。
- 前記インプリント工程において、減圧した後に大気圧に開放することを特徴とする請求項1又は2に記載のウエハレンズの製造方法。
- 前記露光工程において、減圧した後に大気圧に開放することを特徴とする請求項1~3のいずれか一項に記載のウエハレンズの製造方法。
- 前記離型工程において、減圧した後に大気圧に開放することを特徴とする請求項1~4のいずれか一項に記載のウエハレンズの製造方法。
- 上面が開口し、当該開口を塞ぐ蓋部を有する収容体と、
前記収容体の内部に配置され、所定形状のキャビティを有する金型と、
前記収容体の内部で前記金型に対して対向配置され、前記蓋部によって形成される前記収容体の内部空間を上下に区画する基板と、を備え、
前記金型と前記基板との間に形成される下部空間部と、前記基板と前記蓋部との間に形成される上部空間部とが互いに連通し、
前記下部空間部又は前記上部空間のうち少なくとも一方に、当該下部空間部又は前記上部空間部を減圧する減圧機構が設けられていることを特徴とするウエハレンズ製造装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980155407.9A CN102292200B (zh) | 2009-01-30 | 2009-12-15 | 晶片透镜制造方法及晶片透镜制造装置 |
EP09839270.7A EP2384874B1 (en) | 2009-01-30 | 2009-12-15 | Method for producing wafer lens and apparatus for producing wafer lens |
JP2010548375A JPWO2010087083A1 (ja) | 2009-01-30 | 2009-12-15 | ウエハレンズの製造方法及びウエハレンズ製造装置 |
US13/146,156 US20110278750A1 (en) | 2009-01-30 | 2009-12-15 | Method for Producing Wafer Lens and Apparatus for Producing Wafer Lens |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009020251 | 2009-01-30 | ||
JP2009-020251 | 2009-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010087083A1 true WO2010087083A1 (ja) | 2010-08-05 |
Family
ID=42395349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/070889 WO2010087083A1 (ja) | 2009-01-30 | 2009-12-15 | ウエハレンズの製造方法及びウエハレンズ製造装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110278750A1 (ja) |
EP (1) | EP2384874B1 (ja) |
JP (1) | JPWO2010087083A1 (ja) |
CN (1) | CN102292200B (ja) |
WO (1) | WO2010087083A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011075084A1 (en) * | 2009-12-16 | 2011-06-23 | Choong Whye Kwok | Method and apparatus for making polymeric resin-based optical components via ultra-violet radiation |
JP2012125943A (ja) * | 2010-12-13 | 2012-07-05 | Toshiba Mach Co Ltd | マスター型製造装置 |
JP2012125941A (ja) * | 2010-12-13 | 2012-07-05 | Toshiba Mach Co Ltd | マスター型製造装置およびマスター型製造方法 |
US20150290888A1 (en) * | 2010-10-26 | 2015-10-15 | Ev Group Gmbh | Method and device for producing a lens wafer |
CN105842987A (zh) * | 2015-02-04 | 2016-08-10 | 东友精细化工有限公司 | 感光性树脂组合物、感光性树脂组合物形成的光固化图案及具备光固化图案的图像显示装置 |
US9738042B2 (en) | 2010-09-02 | 2017-08-22 | Ev Group Gmbh | Die tool, device and method for producing a lens wafer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003340843A (ja) * | 2002-03-18 | 2003-12-02 | Canon Inc | 複合型素子の製造方法 |
JP2004046093A (ja) * | 2002-05-24 | 2004-02-12 | Canon Inc | 回折光学素子の製造方法 |
JP2006263975A (ja) * | 2005-03-22 | 2006-10-05 | Nikon Corp | 光学素子の製造方法 |
JP3926380B1 (ja) | 2006-12-07 | 2007-06-06 | マイルストーン株式会社 | 撮像レンズ |
JP2007194304A (ja) * | 2006-01-18 | 2007-08-02 | Hitachi Ltd | インプリント装置およびインプリント方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07175132A (ja) * | 1993-12-20 | 1995-07-14 | Mitsubishi Rayon Co Ltd | レンズシートの製造方法 |
US7094304B2 (en) * | 2003-10-31 | 2006-08-22 | Agilent Technologies, Inc. | Method for selective area stamping of optical elements on a substrate |
US7358483B2 (en) * | 2005-06-30 | 2008-04-15 | Konica Minolta Holdings, Inc. | Method of fixing an optical element and method of manufacturing optical module including the use of a light transmissive loading jig |
JPWO2007094213A1 (ja) * | 2006-02-14 | 2009-07-02 | パイオニア株式会社 | インプリント装置及びインプリント方法 |
-
2009
- 2009-12-15 JP JP2010548375A patent/JPWO2010087083A1/ja not_active Withdrawn
- 2009-12-15 EP EP09839270.7A patent/EP2384874B1/en not_active Not-in-force
- 2009-12-15 CN CN200980155407.9A patent/CN102292200B/zh not_active Expired - Fee Related
- 2009-12-15 WO PCT/JP2009/070889 patent/WO2010087083A1/ja active Application Filing
- 2009-12-15 US US13/146,156 patent/US20110278750A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003340843A (ja) * | 2002-03-18 | 2003-12-02 | Canon Inc | 複合型素子の製造方法 |
JP2004046093A (ja) * | 2002-05-24 | 2004-02-12 | Canon Inc | 回折光学素子の製造方法 |
JP2006263975A (ja) * | 2005-03-22 | 2006-10-05 | Nikon Corp | 光学素子の製造方法 |
JP2007194304A (ja) * | 2006-01-18 | 2007-08-02 | Hitachi Ltd | インプリント装置およびインプリント方法 |
JP3926380B1 (ja) | 2006-12-07 | 2007-06-06 | マイルストーン株式会社 | 撮像レンズ |
Non-Patent Citations (1)
Title |
---|
See also references of EP2384874A4 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011075084A1 (en) * | 2009-12-16 | 2011-06-23 | Choong Whye Kwok | Method and apparatus for making polymeric resin-based optical components via ultra-violet radiation |
US9738042B2 (en) | 2010-09-02 | 2017-08-22 | Ev Group Gmbh | Die tool, device and method for producing a lens wafer |
US10668678B2 (en) | 2010-09-02 | 2020-06-02 | Ev Group Gmbh | Die tool, device and method for producing a lens wafer |
US20150290888A1 (en) * | 2010-10-26 | 2015-10-15 | Ev Group Gmbh | Method and device for producing a lens wafer |
US9643366B2 (en) | 2010-10-26 | 2017-05-09 | Ev Group Gmbh | Method and device for producing a lens wafer |
US9662846B2 (en) * | 2010-10-26 | 2017-05-30 | Ev Group Gmbh | Method and device for producing a lens wafer |
JP2012125943A (ja) * | 2010-12-13 | 2012-07-05 | Toshiba Mach Co Ltd | マスター型製造装置 |
JP2012125941A (ja) * | 2010-12-13 | 2012-07-05 | Toshiba Mach Co Ltd | マスター型製造装置およびマスター型製造方法 |
CN105842987A (zh) * | 2015-02-04 | 2016-08-10 | 东友精细化工有限公司 | 感光性树脂组合物、感光性树脂组合物形成的光固化图案及具备光固化图案的图像显示装置 |
CN105842987B (zh) * | 2015-02-04 | 2020-11-13 | 东友精细化工有限公司 | 感光性树脂组合物、感光性树脂组合物形成的光固化图案及具备光固化图案的图像显示装置 |
Also Published As
Publication number | Publication date |
---|---|
CN102292200A (zh) | 2011-12-21 |
US20110278750A1 (en) | 2011-11-17 |
EP2384874A1 (en) | 2011-11-09 |
EP2384874B1 (en) | 2014-03-05 |
CN102292200B (zh) | 2014-10-22 |
EP2384874A4 (en) | 2013-03-13 |
JPWO2010087083A1 (ja) | 2012-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010087082A1 (ja) | ウエハレンズ製造装置及びウエハレンズの製造方法 | |
WO2010143466A1 (ja) | ウエハレンズの製造方法、中間型、光学部品、成形型及び成形型の製造方法 | |
JP5517423B2 (ja) | インプリント装置及びインプリント方法 | |
KR100806231B1 (ko) | 가공장치, 가공방법 및 칩의 제조방법 | |
US8678808B2 (en) | Imprint apparatus and article manufacturing method | |
WO2010087083A1 (ja) | ウエハレンズの製造方法及びウエハレンズ製造装置 | |
JP2013254938A (ja) | インプリント装置および物品の製造方法 | |
JP5678887B2 (ja) | ウエハレンズ製造装置、ウエハレンズの製造方法及びウエハレンズ製造用樹脂型の製造方法 | |
US20130015599A1 (en) | Imprint apparatus, and method of manufacturing article | |
TW201838790A (zh) | 壓印裝置及製造物品的方法 | |
JP6423641B2 (ja) | インプリント装置、物品の製造方法及びインプリント方法 | |
JP5594292B2 (ja) | ウエハレンズの製造方法 | |
JP5196743B2 (ja) | 加工方法及び装置、並びに、デバイス製造方法 | |
JP5745129B2 (ja) | インプリント装置及びインプリント方法 | |
JP5326148B2 (ja) | 転写方法および転写装置 | |
JP2012099789A (ja) | インプリント装置、及び、物品の製造方法 | |
KR100755233B1 (ko) | 임프린팅 리소그래피 장치 | |
US11199773B2 (en) | Imprint apparatus, imprint method, and article manufacturing method | |
JP2021184441A (ja) | モールド、インプリント装置、および物品製造方法 | |
KR20230169850A (ko) | 임프린트 장치, 임프린트 방법 및 물품 제조 방법 | |
JP2020202270A (ja) | 膜形成装置および物品製造方法 | |
JP2019016648A (ja) | インプリント方法、インプリント装置および、物品製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980155407.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09839270 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2010548375 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009839270 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13146156 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |