WO2003102691A1 - Patterning method - Google Patents
Patterning method Download PDFInfo
- Publication number
- WO2003102691A1 WO2003102691A1 PCT/IB2003/002278 IB0302278W WO03102691A1 WO 2003102691 A1 WO2003102691 A1 WO 2003102691A1 IB 0302278 W IB0302278 W IB 0302278W WO 03102691 A1 WO03102691 A1 WO 03102691A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stamp
- substrate
- alignment
- grating
- patterning
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/975—Substrate or mask aligning feature
Definitions
- the present invention relates in general to the formation of a pattern such as a grating array on a substrate. More specifically, the invention relates to the formation of such a grating array on a substrate suitable for fiber optic communication systems. Still more specifically, the invention relates to the adaptation of such a grating array to a desired periodicity or wavelength.
- Optical fiber networks are the backbone for today's most important communication technologies.
- Optical signals generated by, e.g., infra-red lasers carry all manner of data across these networks by high speed modulation of the intensity of their light, decoded subsequently into the now familiar Is and 0s of digital information.
- the last twenty years resulted in billions of dollars of investment in the placement of such fiber networks, often in locations not easily accessible like ocean floors and underneath roadways.
- Most of this fiber is single mode, i.e., allowing the passage of light only within a narrow spectral window, so that earlier attention to increasing the capacity of these networks focused on ever faster modulation and detection of the laser signals.
- WDM wavelength division multiplexing
- DFR distributed feedback resonators
- a grating array in silica results from e-beam lithography to provide a master with typical feature size of about 100 nm at periods of 200 nm, necessary for implementation of DFR lasers at wavelengths of 1.5 ⁇ m.
- An image of the master grating is printed by its exposure, using UV light, of photoresist in contact with the master.
- Microcontact printing (hereinafter ⁇ CP) is a technique for forming patterns of organic monolayers with micrometer and submicron lateral dimensions. It offers experimental simplicity and flexibility in forming certain types of patterns. So far, most of the prior art relies on the remarkable ability of self-assembled monolayers of long chain alkanethiolates to form on, e.g., gold or other metals. These patterns can act as nanometer resists by protecting the supporting metal from corrosion by appropriately formulated etchants, or can allow for the selective placement of fluids on hydrophilic regions of the pattern.
- Patterns of self-assembled monolayers having dimensions that can be less than 1 micrometer are formed by using the alkanethiol as an "ink", and by printing them on the metal support using an elastomeric "stamp".
- the stamp is fabricated by molding a silicone elastomer using a master prepared by optical lithography, by e-beam lithography, or by other techniques. Patterning of the surface of such a stamp is, e.g., disclosed in EP-B-0 784 543.
- Step-and-flash-imprint lithography also called micromolding or UV-molding, is a technique that has the potential to replace photolithography for patterning resist with sub- 100 nm features.
- US-A-5, 817,242 discloses a hybrid stamp structure for lithographic processing of features below 1 micron.
- the stamp offers means for achieving a self-alignment, this means comprising key-and-lock type topographical features, e.g., cone- or pyramid-shaped protrusions and holes, which after a sufficiently accurate pre-positioning by stepping devices guide the stamp into the desired final position.
- the stamp comprises wedge-shaped protrusions exceeding the features of the lithographic pattern, fitting exactly into corresponding recesses of the substrate. The geometrical shape of the features thus causes a fine-adjustment of the stamp and the substrate.
- self-alignment means based on the property or tendency of a liquid to minimize its surface. An efficient self-aligning mechanism is achieved with hydrophilic pads on the surface of both the substrate and the stamp, together with a controlled amount of moisture.
- the state of the art discloses a stamp device for printing a pattern on a surface of a substrate having a two-sided rigid carrier layer providing on its first side a patterned layer made of a first material and being combined on its second side with a soft layer made of a softer material than the first material.
- the invention relates to a method for creating a pattern on a substrate comprising a first alignment structure, using an elastomeric stamp comprising a patterning structure and a second alignment structure.
- the method comprises a moving step for moving the elastomeric stamp towards the substrate, and a deformation step for deforming the patterning structure with a tensile force generated by cooperation of the first alignment structure and the second alignment structure.
- a method of producing a pattern that overcomes the above mentioned disadvantages of the prior art is provided.
- the method has the advantage that by deformation of the stamp the pattern size of the pattern is determined during the patterning step. Another advantage is that the pattern size is deternmined by the cooperation of the two alignment structures, hence the substrate determines the pattern size.
- the translational moevement is translated by a very simple mechanical principle which has the advantage of a simpler construction of the stamp and in particular the alignment structures.
- An alignment step for bringing the first alignment structure and second alignment structure together is advantageous to avoid misalignment and effects an approach of the alignment structures for enabling them to cooperate.
- the patterning structure is selected to comprise a grating structure
- the method can be advantageously applied to create a grating pattern on the substrate, e.g. for optical purposes. Gratings with different or even varying pitches are very useful in optics. With the method, a grating with a pitch varying across the grating can be easily manufactured.
- the pattern deformation can be achieved in both dimensions, allowing to manufacture more complicated structures, such as gratings with varying pitch in two dimensions.
- the overall defomration of the substrate can be reduced. This allows to generate a deformation difference between the smallest and the largest deformation that can even exceed the deformability of the substrate.
- Figs. 1A to 1C schematically depict self-alignment of a stamp on a substrate according to the prior art
- Fig. 2 schematically shows a stamp and a substrate with a non-identical distance of their alignment structures providing for deformation
- Fig. 3 schematically shows a stamp and a substrate with a non-identical distance of their alignment structures providing for deformation in opposite directions;
- Fig. 4 schematically depicts a grating with continuous deformation
- Fig. 5 shows two examples of the use of the deformability of an elastomeric stamp to form grating features of DFR lasers.
- gratings designed to interact with electromagnetic waves.
- Such gratings can be used in conjunction with devices like, e.g., lasers, filters, selective couplers and the like.
- the described method utilizes an elastomeric stamp to create this structure.
- a master can be manufactured by e-beam lithography or similar techniques.
- This master having a three-dimensional structure of reliefs similar to those that form part of the device to be manufactured, is next duplicated by molding its features into an elastomer, like, e.g., polydimethylsiloxane (PDMS).
- PDMS polydimethylsiloxane
- Other elastomers can be used as well.
- the stamp is used for transferring a resist.
- the stamp carries a relief for forming the grating pattern ultimately transferred to the target device.
- the stamp is inked on its surface with the resist, i.e. it is coated in a coating step with that material.
- Alignment of the stamp can rely on the available topography to help guide the grating features to a desired location on the target device. This type of alignment is the consequence of the finite deformability characteristic of elastomeric stamps.
- Fig. 1A schematically shows a known lock-and-key-type self alignment.
- a stamp 8 carries wedge-shaped protrusions 4, made, e.g., of polymethylmethacrylate (PMMA) and protruding beyond the features of a lithographic pattern (not shown). These protrusions 4 fit into corresponding recesses 6 present in a substrate 2.
- PMMA polymethylmethacrylate
- the geometrical shape of the complementary features e.g., the tilted sidewalls, cause a fine-adjustment of the stamp 8 relative to the substrate 2.
- Fig. IC shows means of self-alignment that rely on the tendency of a liquid to minimize its surface.
- Matching topographically flat zones are used on the stamp 8 and the substrate 2 having a chemically altered surface with higher interaction with a liquid than the other zones. Thereby, capillary forces exerted from a drop of liquid 12 placed between the flat zones will provide alignment forces.
- hydrophilic pads on the surface of both the substrate 2 and the stamp 8 together with a controlled amount of moisture leading to the formation of small droplets on and between these pads, a self-aligning mechanism is realized.
- the sandwiched droplet provides a restoring force back to the desired overlapping position, thereby moving the stamp 8 into its desired position.
- stamps can also be used in another way. Stretching or pressing an elastomeric stamp 8 results in an isotropic deformation of its features. Thus changes in the desired pitch of the grating can be affected by placing the stamp 8 under a compressive or tensile mechanical stress aligned substantially perpendicular to its features. An absolute change in the pitch of a given grating then result from a deterministic change in this mechanical stress.
- PDMS PDMS is molded onto a backplane made from invar, steel, glass or plastic.
- the maximal distortion that can be generated using a lateral force generated by a lock-and-key mechanism is limited to values below ⁇ 0.2%, or 2000 ppm.
- Fig. 2 schematically shows the alignment of a stamp 8 and a substrate 2 according to a first embodiment of the present invention.
- the substrate 2 carries a first alignment structure, which here comprises wedge-shaped protrusions 4a, 4b on its surface.
- the stamp 8 carries a second alignment structure in form of recesses 6a, 6b that have a form that is complementary to the first alignment structure 4a, 4b. Between the recesses 6a, 6b the stamp 8 has a patterning structure 10 that here comprises a grating having several substantially parallel grating lines. With other words, the patterning structure 10 is selected to comprise a grating structure.
- the recesses of the second alignment structure 6a, 6b on the stamp 8 do not exactly fit onto the protrusions 4a, 4b, but, the recesses 6a, 6b show an offset d with respect to the respective protrusions 4a, 4b on the substrate 2.
- This offset d may for example be in the range of 0.2 microns for adjacent features of the grating, e.g. the grating lines, each with a size of 1 mm and become as large as ten microns when a larger spectral offset is generated.
- the maximal offset d to create a 50 nm difference would be 5% or 50 microns over a mm, a deformation which cannot be maintained using known thin-film stamp approaches.
- the patterning structure 10 can be coated in a coating step.
- the coating can comprise an ink, a molecular layer, or any other chemical of biochemical matter.
- a moving step the elastomeric stamp 8 is moved towards the substrate 2.
- An alignment step can be used for bringing the first alignment structure and second alignment structure together, in particular controlling the position of the stamp 8 relative to the substrate 2 in lateral direction, i.e. substantially parallel to the substrate surface to be patterned.
- the alignment structures 4a, 4b, 6a, 6b approach each other and come into contact. Then follows a deformation step for deforming the patterning structure 10 with a tensile force. This force is generated by cooperation of the first alignment structure 4a, 4b with the second alignment structure 6a, 6b.
- the protrusions 4a, 4b on the substrate 2 are harder and less elastic than the elastomeric material of the stamp 8.
- the protrucions 4a, 4b are made of the same or a similar material as the substrate 2, e.g. silicon, or silica.
- the stamp 8 is deformed, adapting to the first alignment structure 4a, 4b.
- the pattern generated on the substrate 2 can be larger, as is the case in fig. 2, or smaller than the corresponding patterning structure 10 on the stamp 8. This allows to use a larger patterning structure 10 for generating smaller patterns, or the other way round.
- the stamp 8 itself is only subjected to the tensile force during the contact which reduces the time during which the stamp 8 is stressed. That increases the overall lifetime of the stamp 8.
- the transformation is here achieved by the alignment structures 4a, 4b, 6a, 6b being designed to comprise an inclined surface relative to the translational movement and relative to the patterning structure 10.
- the patterning structure 10 gets into contact with the substrate 2 whereby the material with which the patterning structure 10 has been coated before is enabled to pattern the substrate 2, i.e. to modify the substrate 2 surface in a specific area.
- modification can be a partial or complete transfer of the coating material, etching, a chemical reaction or even a physical modification like an embossing, for which the coating step might be renounced.
- the stamp 8 can be removed from the substrate 2. During that removing step a deformation of the stamp 8 occurs by reduction of the tensile force and the elasticity of the stamp 8.
- the stamp 8 can be reused on a different substrate 2. On that substrate 2 again a first alignment structure 4a, 4b will be present to interact with the second alignment structure 6a, 6b on the stamp 8.
- the resulting deformation can in that case be of a different magnitude and/or direction.
- the stamp 8 can be subjected to compressing tensile stress and in another case of use the stamp 8 can be subjected to elongative or stretching tensile stress.
- stamp 8 It is also advantageous to combine on the same stamp 8 a local zone under elongative stress with a local zone under compressive stress so that the total deformation of the stamp 8 is reduced.
- a global deformation that stretches all features of the grating 10 can be achieved by changing the temperature during molding or during printing making use of the differential expansion coefficient between a backplane and the master or between the backplane and the substrate 2. This is the preferred approach to simultaneously distort all features of the grating on the stamp 8.
- the differential expansion coefficient during molding will be smaller (approximately 1 ppm/K) but depending on the selection of the backplane material isotropic stretch factors between 5 and 2000 ppm can be achieved.
- a difference between the change of the pitch resulting in the embodiment shown in fig. 2 and the method known from the prior art described in Y. Xia et al. is that in the prior art method the change of the pattern size is achieved by applying an external lateral force, e.g., by means of an additional vice, whereas the depicted arrangement makes use of the interaction of the protrusions 4a, 4b on the surface of the substrate 2 and the corresponding recesses 6a, 6b on the elastomeric stamp 8, having the offset d relative to each other.
- This has the advantage that the degree of deformation is determined in the moment of putting the elastomeric stamp 8 on the substrate 2.
- the stamp 8 can be taken from one substrate 2 to another substrate 2 and can there undergo a different degree of deformation without using any additional tools or having to perform any adjustment. Between two uses a cleaning step or a coating step can be performed.
- the patterning structure 10 can also be modified between two uses.
- the substrate 2 may thus comprise protrusions which compress the corresponding part of the stamp 8, whereas, at another location of the substrate 2 protrusions are present that effect a stretching of the corresponding part of the stamp 8.
- the substrate 2 here comprises the protrusions 4a, which have a lower distance to each other than the corresponding recesses 6a on the stamp 8 bearing a first pattern 10 as patterning structure between the protrusions 4a.
- the same stamp 8 furthermore comprises the protrusions 4b, which have a bigger distance to each other than the corresponding recesses 6b on the stamp 8 bearing a second pattern 11 as patterning structure between the protrusions 4b.
- Figure 4 shows a grating with a first pitch x at one end and a second pitch y at the other end.
- the period of the depicted grating continuously changes from the first pitch x to the second pitch y as one moves from the location Xo to the location Yo.
- Such a continuously changing pitch is difficult to produce with known lithography methods since these rely on a discrete grid for optical exposure.
- such a grating with continuously changing pitch can be generated by having the stamp 8 bear a grating with a pitch (x+y)/2 that during the patterning step is compressed at the location Xo by (y-x)/2 and extended at the location Yo by (y-x)/2.
- the maximum deformation of the stamp 8 is reduced in comparison with an embodiment that uses only stretching or compression.
- either the corresponding alignment structures 4a, 4b, 6a, 6b are themselves substantially continuously arranged on the substrate 2 and on the stamp 8 or they are discretely arranged and spaced close enough to each other that the elasticity of the stamp 8 leads to a substantially continuous deformation.
- the patterning with the elastomeric stamp 8 can also be used in a step-and-print type arrangement e.g. in projection lithography.
- This aspect of patterning is particularly useful in conjunction with a master formed by holography, i.e., where all gratings are formed to have the same pitch, and the deformation of the stamp 8, as described above, is thereafter used to achieve a different wavelength shift for each individual device, group, or array of devices.
- a matrix of arrays is depicted.
- Each array of devices is here considered as a separate chip that is patterned individually.
- Stamping allows for printing in unusually shaped or small areas, so that patterning the grating for an individual device is conceivable, allowing a greater flexibility in the choice of the grating pitch.
- the combination of the deformability of the stamp 8 together with the ability to print relatively small and unusually shaped areas is particularly advantageous.
- a set of devices comprising for example an array of ten lasers arranged in a line each differing in pitch and phase, can be manufactured by using the described deformation during patterning and stepping 10 times to iteratively form the gratings for a 100- wavelengths laser array. Repeated cycles of these steps complete the pattern of gratings on the wafer.
- the elastomeric stamp 8 could be used as a master in near-field holography.
- the stamp 8 can be used instead of a silica master to create the patterned exposure of a resist.
- the disadvantage of this technique of its vulnerability to occlusion and change of the features of the stamp 8 is alleviated by the low cost of producing another stamp by replication from the e-beam master. This step does substantially cause no wear in the master, as mentioned above.
- the advantage of the conformal contact between the stamp 8 and the resist provides the alternative advantage of compensating the inherent stress and deformation typical in contact lithography. This stress might be particularly reducing yield on a wafer with several devices, as the accumulated effect causes undesired changes in the absolute pitch at different points along the surface of the wafer.
- the elastomeric stamp 8 is used as master in UN-molding or step-and-flash imprint lithography.
- the stamp 8 is used instead of the rigid quartz master similar to the example above, the stamp 8 can be replicated several times from the e-beam original.
- the advantage of a thin-film PDMS stamp 8 on a bendable carrier is that the pressure is distributed evenly over the surface and the molded resist has a more reproducible thickness.
- the low- viscous pre-polymer may be beneficial since it facilitates relative movements of the stamp 8 against the substrate 2 through liquid lubrication.
- surface modifications of the polymer and the substrate 2 can be used to affect easy separation of the two, as when the PDMS has a fluorinated silane on its surface, for example.
- the applicability of the present invention can be extended from a one-dimensional case to a two-dimensional case:
- the elastic tuning of the stamp 8 can also be applied in two dimensions of space, either isotropically, or anisotropically.
- the stamp is deformed in both dimensions by the same factor, thus in the example of an optical grating changing the resonance wavelengths by this factor.
- the wavelength bands can be distorted to allow design and quick test of novel optical properties. Structures like the latter are difficult to be fabricated by other methods since e-beam lithography tools use regular lattices for exposure.
- the described embodiments show the advantage of stretching and/or compressing of a predefined grating to adjust the pitch of the grating to the emission wavelength for, e.g., a particular laser.
- An advantageous tuning scheme uses lock structures on the substrate 2 that match with key structures on the stamp 8 to stretch and/or compress it to a desired value, e.g. given by a calibration run of the system.
- each laser or filter of the array can be individually calibrated and tuned for the subsequent fabrication run to improve the emission at a desired wavelength.
- This scheme could be extended to allow generation of a set of gratings on the master that is proportionally stretched to allow different numbers of lasers with differently pitched emission wavelengths to be manufactured.
- a two-dimensional periodic pattern with variation of the periodicity in two directions of the plane can be used, e.g., in filter functions of photonic-bandgap structures. Such distorted two-dimensional patterns could also be used to couple light in a photonic-bandgap structure with high selectivity.
- a grating array with chirps i.e., an array with continuous variation in pitch
- the chirps could be introduced by a deformation of the stamp 8 at an angle slanted to the grating variation. All the above patterns can also be used for sensor applications.
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- Crystallography & Structural Chemistry (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
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- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
Description
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60326724T DE60326724D1 (en) | 2002-05-30 | 2003-05-28 | STRUCTURING PROCESS |
EP03727822A EP1516228B1 (en) | 2002-05-30 | 2003-05-28 | Patterning method |
US10/485,419 US7235464B2 (en) | 2002-05-30 | 2003-05-28 | Patterning method |
JP2004509513A JP4147221B2 (en) | 2002-05-30 | 2003-05-28 | Patterning method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02405431 | 2002-05-30 | ||
EP02405431.4 | 2002-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003102691A1 true WO2003102691A1 (en) | 2003-12-11 |
Family
ID=29595060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/002278 WO2003102691A1 (en) | 2002-05-30 | 2003-05-28 | Patterning method |
Country Status (5)
Country | Link |
---|---|
US (1) | US7235464B2 (en) |
EP (1) | EP1516228B1 (en) |
JP (1) | JP4147221B2 (en) |
DE (1) | DE60326724D1 (en) |
WO (1) | WO2003102691A1 (en) |
Cited By (2)
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WO2005031855A1 (en) * | 2003-09-29 | 2005-04-07 | International Business Machines Corporation | Fabrication method |
EP2300207A1 (en) * | 2008-06-26 | 2011-03-30 | President and Fellows of Harvard College | Versatile high aspect ratio actuatable nanostructured materials through replication |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10330456B9 (en) * | 2003-07-05 | 2007-11-08 | Erich Thallner | Device for creating a surface structure on a wafer |
KR20120105062A (en) | 2003-12-19 | 2012-09-24 | 더 유니버시티 오브 노쓰 캐롤라이나 엣 채플 힐 | Methods for fabricating isolated micro- and nano- structures using soft or imprint lithography |
US9040090B2 (en) * | 2003-12-19 | 2015-05-26 | The University Of North Carolina At Chapel Hill | Isolated and fixed micro and nano structures and methods thereof |
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WO2007133235A2 (en) * | 2005-08-08 | 2007-11-22 | Liquidia Technologies, Inc. | Micro and nano-structure metrology |
US20080023885A1 (en) * | 2006-06-15 | 2008-01-31 | Nanochip, Inc. | Method for forming a nano-imprint lithography template having very high feature counts |
US20070291623A1 (en) * | 2006-06-15 | 2007-12-20 | Nanochip, Inc. | Cantilever with control of vertical and lateral position of contact probe tip |
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US20070121477A1 (en) * | 2006-06-15 | 2007-05-31 | Nanochip, Inc. | Cantilever with control of vertical and lateral position of contact probe tip |
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US20080074792A1 (en) * | 2006-09-21 | 2008-03-27 | Nanochip, Inc. | Control scheme for a memory device |
US20080074984A1 (en) * | 2006-09-21 | 2008-03-27 | Nanochip, Inc. | Architecture for a Memory Device |
US7832416B2 (en) * | 2006-10-10 | 2010-11-16 | Hewlett-Packard Development Company, L.P. | Imprint lithography apparatus and methods |
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US7763484B2 (en) * | 2007-06-13 | 2010-07-27 | Sumitomo Electric Industries, Ltd. | Method to form an optical grating and to form a distributed feedback laser diode with the optical grating |
US7927976B2 (en) * | 2008-07-23 | 2011-04-19 | Semprius, Inc. | Reinforced composite stamp for dry transfer printing of semiconductor elements |
KR101736722B1 (en) * | 2008-11-19 | 2017-05-17 | 셈프리어스 아이엔씨. | Printing semiconductor elements by shear-assisted elastomeric stamp transfer |
US8261660B2 (en) * | 2009-07-22 | 2012-09-11 | Semprius, Inc. | Vacuum coupled tool apparatus for dry transfer printing semiconductor elements |
DE102010052033A1 (en) * | 2010-11-23 | 2012-05-24 | Leibniz-Institut Für Neue Materialien Gemeinnützige Gmbh | Process for the production of metallic structures |
JP5996440B2 (en) | 2011-02-08 | 2016-09-21 | 浜松ホトニクス株式会社 | Optical element and manufacturing method thereof |
JP6234667B2 (en) | 2012-08-06 | 2017-11-22 | 浜松ホトニクス株式会社 | Optical element and manufacturing method thereof |
WO2016069546A1 (en) * | 2014-10-28 | 2016-05-06 | Analog Devices, Inc. | Transfer printing method |
FR3066624B1 (en) * | 2017-05-20 | 2019-09-13 | Sunpartner Technologies | NANOIMPRESSION LITHOGRAPHY METHOD USING A SELF-DUMPING STEP |
JP7041545B2 (en) * | 2018-02-16 | 2022-03-24 | キヤノン株式会社 | Imprinting equipment, manufacturing method of goods and mold |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5817242A (en) * | 1995-08-04 | 1998-10-06 | International Business Machines Corporation | Stamp for a lithographic process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5772905A (en) * | 1995-11-15 | 1998-06-30 | Regents Of The University Of Minnesota | Nanoimprint lithography |
US6482742B1 (en) * | 2000-07-18 | 2002-11-19 | Stephen Y. Chou | Fluid pressure imprint lithography |
NO311797B1 (en) * | 1999-05-12 | 2002-01-28 | Thin Film Electronics Asa | Methods for patterning polymer films and using the methods |
SG108820A1 (en) * | 2001-02-23 | 2005-02-28 | Agency Science Tech & Res | Method and apparatus for forming a metallic feature on a substrate |
US6656398B2 (en) * | 2001-06-19 | 2003-12-02 | Corning Incorporated | Process of making a pattern in a film |
US7117790B2 (en) * | 2002-01-11 | 2006-10-10 | Massachusetts Institute Of Technology | Microcontact printing |
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2003
- 2003-05-28 WO PCT/IB2003/002278 patent/WO2003102691A1/en not_active Application Discontinuation
- 2003-05-28 DE DE60326724T patent/DE60326724D1/en not_active Expired - Lifetime
- 2003-05-28 JP JP2004509513A patent/JP4147221B2/en not_active Expired - Fee Related
- 2003-05-28 US US10/485,419 patent/US7235464B2/en not_active Expired - Fee Related
- 2003-05-28 EP EP03727822A patent/EP1516228B1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5817242A (en) * | 1995-08-04 | 1998-10-06 | International Business Machines Corporation | Stamp for a lithographic process |
Non-Patent Citations (1)
Title |
---|
XIA Y ET AL: "SOFT LITHOGRAPHY", ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, VERLAG CHEMIE. WEINHEIM, DE, vol. 37, 1998, pages 551 - 575, XP000985399, ISSN: 0570-0833 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031855A1 (en) * | 2003-09-29 | 2005-04-07 | International Business Machines Corporation | Fabrication method |
EP2300207A1 (en) * | 2008-06-26 | 2011-03-30 | President and Fellows of Harvard College | Versatile high aspect ratio actuatable nanostructured materials through replication |
EP2300207A4 (en) * | 2008-06-26 | 2012-05-09 | Harvard College | Versatile high aspect ratio actuatable nanostructured materials through replication |
US8833430B2 (en) | 2008-06-26 | 2014-09-16 | President And Fellows Of Harvard College | Versatile high aspect ratio actuatable nanostructured materials through replication |
Also Published As
Publication number | Publication date |
---|---|
EP1516228B1 (en) | 2009-03-18 |
DE60326724D1 (en) | 2009-04-30 |
JP4147221B2 (en) | 2008-09-10 |
EP1516228A1 (en) | 2005-03-23 |
US20050124092A1 (en) | 2005-06-09 |
JP2005520213A (en) | 2005-07-07 |
US7235464B2 (en) | 2007-06-26 |
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